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Sample records for protecao radiologica diagnostica

  1. Development of a ceramic material to cover walls to be applied in diagnostic radiological protection; Desenvolvimento de um material ceramico para utilizacao em protecao radiologica diagnostica

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    Frimaio, Audrew

    2006-07-01

    This study aims to formulate a ceramic composition for wall coating seeking to contribute to the optimization of diagnosis rooms' shielding. The work was based on experimental measures of X-radiation attenuation (80 and 100 kV) using ceramic coating materials containing different ceramic bases (red, white, gres, stoneware porcelain tiles, etc). Among the appraised ceramic bases, the white gres presented better attenuation properties and it was considered the most suitable material for the targets of this work. Different formulations of white gres were studied and altered in order to obtain better attenuation properties. Simulations of ceramic compositions using gres coating were made maintaining the percentages of 12-20% clay; 6-18% kaolin; 12-25% phyllite; 8-14% quartz; 1018% feldspar; 32-40% pegmatite and 6-8% talc in the composition of the necessary raw-material. The quantitative and qualitative chemical compositions of these materials were also evaluated and the most common representative elements are SiO{sub 2}, Fe{sub 2}O{sub 3}, Al{sub 2}O{sub 3}, CaO and Ti{sub 2}O{sub 3}. Formulations containing Pb and Ba oxides were studied, considering that CaO can be replaced by PbO or BaO. The attenuation properties for X-radiation were investigated by computer simulations considering the incident and transmitted X-ray spectra for the different studied compositions and they were compared to the properties of the reference materials Pb, Ba and BaSO{sub 4} (barite). The results obtained with the simulations indicated the formulated composition of gres ceramic base that presented better attenuation properties considering the X-ray energies used in diagnosis (80, 100 and 150 kV). Ceramic plates based on the formulated compositions that presented lower percentage differences related to Pb were experimentally produced and physically tested as wall coating and protecting barrier. Properties as flexion resistance module, density, load rupture, water absorption and X radiation attenuation were evaluated for all produced plates. (author)

  2. Evaluation of personal protective devices used in diagnostic radiology; Avaliacao de dispositivos de protecao individual utilizados em radiologia diagnostica

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    Soares, Fernanda Cristina Salvador

    2006-07-01

    In this work protective devices of five manufacturers were evaluated according to the NBR/IEC 61331-1 and NBR/IEC 61331-3 standards. Three different methodologies (linear interpolation, Archer model and sum of exponentials) were applied for the determination of the attenuation equivalent, since the standard does not indicate how it must be determined. Moreover, the uncertainties associated to each method, and the influence of the number of measurements in the combined uncertainty were estimated. The evaluated manufacture characteristics were: accompanying document, design, materials, dimensions and label marking. For this evaluation a check list about the requirements of the NBR/IEC 61331-3 standard was elaborated. The results showed a great difference between nominal and measured attenuation equivalent values. The comparison of the results using the three methodologies showed small variations among the obtained values and among the associated uncertainties in the different methodologies. It was possible to observe that the number of measurements does not contribute significantly for the increase of the uncertainty in all three methodologies. The best methodology for the laboratory routine is the linear interpolation methodology, with five measurements for each air kerma rate value. The discrepancy between the results obtained in this work and the requirements of the applied standards show the need to adopt a compulsory certification process for protective devices, thus contributing for the increase of the radiation protection of the users. (author)

  3. Radiologic protection in intensive therapy units; Protecao radiologica em unidades de terapia intensiva

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    Andrea, H.; Juliana, C.; Gerusa, R.; Laurete, M.B.; Suelen, S., E-mail: andrea.huhn@ifsc.edu.br, E-mail: juliana@ifsc.edu.br, E-mail: gerusa@ifsc.edu.br, E-mail: laurete@ifsc.edu.br, E-mail: suelen.saraiva@ifsc.edu.br [Instituto Federal de Santa Catarina (IFSC), Florianopolis, SC (Brazil); Derech, Rodrigo D.A., E-mail: dagostiniderech@gmail.com [Policlinica Municipal Sul, Florianopolis, SC (Brazil)

    2013-11-01

    The discovery of X-ray was a great achievement for humanity, especially for the medical community. In Intensive Care Units (ICUs), the RX tests, performed with mobile devices, add immense value to the diagnosis of inpatients who do not have the option to carry them out of bed. Following the technology and its improvements, fatalities arose from misuse of ionizing radiation, which mostly gave up for lack of knowledge of the biological effects caused by them, which leads to fear among professionals and often prevents a quick job and effectively by professionals of radiological techniques. The research it is a systematic review of the literature and justified by the scarcity of materials that reflect on the radiological protection in ICUs. For this study we found the Virtual Health Library (VHL) and Pubmed were indexed terms radiological protection and intensive care units, the search in Portuguese and English terms were used radiological protection and intensive care unit. The study aims to inform professionals of ICUs on the main aspects that refer to X-rays in hospital beds, the standards of radiological protection and personal protective equipment, thus avoiding possible damage to the biological health of workers, addressing subjects in rules and laws about the X radiation, emphasizing the protection of professionals in intensive care. It is clear, finally, that little research is conducted in the context of radiological protection of workers ICU's and this is a place that receives daily RX equipment, deserving more attention to protect the worker. (author)

  4. Radiological Protection Plan an ethic responsibility; Plano de protecao radiologica e responsabilidade etica

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    Huhn, Andrea, E-mail: andrea.huhn@ifsc.edu.br [Instituto Federal de Santa Catarina (IFSC), Florianopolis, SC (Brazil); Vargas, Mara Ambrosina de Oliveira, E-mail: mara@ccs.ufs.br [Universidade Federal de Santa Catarina (UFSC), Florianopolis, SC (Brazil)

    2014-07-01

    The Radiological Protection Plan - PPR, quoted by the Regulatory Standard 32, requires to be maintained at the workplace and at the disposal of the worker's inspection the PPR, for it to be aware of their work environment and the damage that can be caused by misuse of ionizing radiation. Objective: to discuss the interface between PPR and ethical reflection. Method: this is a reflective study. Discussion and results: regulatory norm 32 points out that the worker who conducts activities in areas where there are sources of ionizing radiation should know the risks associated with their work. However, it is considered that the sectors of hospital radiology the multidisciplinary health team is exposed to ionizing radiation and has not always aware of the harm caused by it, so end up unprotected conduct their activities. Concomitantly, recent studies emphasize the radiological protection and concern for the dangers of radiation on humans, but rather refer to the legislation about the radiological protection. In this context an ethical reflection is necessary, seeking to combine work ethics liability to care in protecting themselves and the other with the institutional conditions for this protection becomes effective.

  5. Evolution of the radiological protection paradigms; Evolucao dos paradigmas de protecao radiologica

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    Sordi, Gian Maria A.A. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil). Programa de Pos-Graduacao em Tecnologia Nuclear], E-mail: gmsordi@ipen.br

    2009-10-15

    We consider as initial radiological protection paradigms those in vigour after the release of the atomic energy for pacific usages in 1955. In that occasion, only one paradigm was introduced, presently named dose limitation system. After arguing about the basis that raised the paradigm, we introduced the guidance, that is, the measurements to be implemented to comply with the paradigm. In that occasion, they were two, i.e., the radiation dose monitoring and the workplace classification. Afterwards, the reasons that caused the radiological protection paradigms changes in force until 1995 are discussed. The initial paradigm was modified introducing the justification and the optimization principles, adding that the radiological protection should be economical and effective. The guidance also increased to four: personal monitoring, workplace classification, reference level and workers classification. Afterwards, we give the main justifications for the present paradigms that besides the formers were added the dose constraints, the potential exposure and the annual risk limits. Due to these modifications, the workers classifications were eliminated from the guidance, but the potential exposure and the search for the dose constraints were added. Eventually, we discuss the tendencies for the next future and the main changes introduced by the ICRP in the Publication 103, 2007. (author)

  6. Studio del comportamento di agenti di contrasto in campi ultracustici per tecniche di ecografia diagnostica

    OpenAIRE

    BIAGIONI, ANGELO

    2011-01-01

    Il presente lavoro di ricerca è stato articolato intorno a temi attinenti l’ingegneria biomedica, riguardando, in particolare, lo studio del comportamento di agenti di contrasto in campi ultracustici per tecniche di ecografia diagnostica. Nell’ambito di tale settore scientifico, un ruolo di fondamentale importanza è svolto dalla diagnostica medica per immagini e in particolare dalle tecniche ecografiche. Queste ultime rappresentano un ottimo compromesso tra la pericolosità per l’organismo e l...

  7. Ionizing radiation, nuclear energy and radiation protection for school; Radiacao ionizante, energia nuclear e protecao radiologica para a escola

    Energy Technology Data Exchange (ETDEWEB)

    Lucena, E.A.; Reis, R.G.; Pinho, A.S.; Alves, A.S.; Rio, M.A.P.; Reis, A.A., E-mail: arlene@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Silva, J.W.S. [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil); Paula, G.A. de; Goncalves Junior, M.A. [Escola Sesc de Ensino Medio, Rio de Janeiro, RJ (Brazil)

    2017-04-01

    Since the discovery of X-rays in 1895, ionizing radiation has been applied in many sectors of society, such as medicine, industry, safety, construction, engineering and research. However, population is unaware of both the applications of ionizing radiation and their risks and benefits. It can be seen that most people associate the terms 'radiation' and 'nuclear energy' with the atomic bomb or cancer, most likely because of warlike applications and the stealthy way radioactivity had been treated in the past. Thus, it is necessary to clarify the population about the main aspects related to the applications, risks and associated benefits. These knowledge can be disseminated in schools. Brazilian legislation for basic education provides for topics such as nuclear energy and radioactivity to high school students. However, some factors hamper such an educational practice, namely, few hours of class, textbooks do not address the subject, previous concepts obtained in the media, difficulty in dealing with the subject in the classroom, phobia, etc. One solution would be the approximation between schools and institutions that employ technologies involving radioactivity, which would allow students to know the practices, associated radiological protection, as well as the risks and benefits to society. Currently, with the increasing application of ionizing radiation, especially in medicine, it is necessary to demystify the use of radioactivity. (author)

  8. Regulation of radiological protection for patients under radiodiagnosis; Proposta de regulamentacao da protecao radiologica do paciente em radiodiagnostico

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    Yacovenco, Alejandro [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia; Ferreira, R.S. [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil). Superintendencia de Licenciamento e Controle; Souza, A.C.A. [Universidade Federal, Rio de Janeiro, RJ (Brazil). Dept. de Fisico-Quimica

    1997-12-31

    Face to the increasing exposition of the population to ionizing radiations and the needs to fulfill user`s rights, political and scientific efforts have been made in order to improve image quality and reduce risks to patients. A proposal to create a National Reference Laboratory to survey, supervise and evaluate the implementation of norms which require the control of physical parameters of the radiological equipment is presented. Aspects related to the profile of the Medical Physicist are also discussed. (author) 5 refs.; e-mail: yacovenco at serv.peb.ufrj.br; rubemar at dpx.cnen.gov. br; cecilia at iq.ufrj.br

  9. IMRT and radiation protection in the prostate cancer therapy; IMRT e a protecao radiologica no tratamento do cancer de prostata

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    Santos, Helena C.; Silva, Andre R.M.; Oliveira, Claudia F.M., E-mail: andrerichard88@bol.com.br [Instituto Federal de Educacao, Ciencia e Tecnologia de Pernambuco (IFPE), Recife, PE (Brazil)

    2015-07-01

    This study aims to specify the technological advances that IMRT presents relative to other traditional radiotherapy, particularly to conformal radiotherapy three dimensional (3D-TCR) and benefits compared to the side effects caused by from treatment of radiotherapy.

  10. Radiological protection procedures for industrial applications of computed radiography; Procedimentos de protecao radiologica em aplicacoes industriais da radiografia computadorizada

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    Aquino, Josilto Oliveira de

    2009-03-15

    Due to its very particular characteristics, industrial radiography is responsible for roughly half of the relevant accidents in nuclear industry, in developed as well as in developing countries, according to the International Atomic Energy Agency (IAEA). Thus, safety and radiological protection in industrial gamma radiography have been receiving especial treatment by regulatory authorities of most Member States. The main objective of the present work was to evaluate, from the radioprotection point of view, the main advantages of computed radiography (CR) for filmless industrial radiography. In order to accomplish this, both techniques, i.e. conventional and filmless computed radiography were evaluated and compared through practical studies. After the studies performed at the present work it was concluded that computed radiography significantly reduces the inherent doses, reflecting in smaller restricted areas and costs, with consequent improvement in radiological protection and safety. (author)

  11. Radiological respiratory protection in Angra-1 Nuclear Power Plant; Protecao respiratoria radiologica na Usina Nuclear de Angra

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    Amaral, Marcos A. do [Furnas Centrais Eletricas S.A., Angra dos Reis, RJ (Brazil). Central Nuclear de Angra I. Div. de Protecao Radiologica e Ambiental

    1996-07-01

    The present paper has the purpose to describe the actual situation of the Radiological respiratory Protection in Angra I Nuclear Power Plant, the difficulties found and the goals to achieve, in order of the radiological protection excellence. (author)

  12. Protective equipment of radiological protection and the worker wear; Equipamento de protecao radiologica e o desgaste do trabalhador

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    Cassia, Flor Rita de; Huhn, Andrea, E-mail: flor@ifsc.edu.br [Instituto Federal de Educacao, Ciencia e Tecnologia de Santa Catarina (IFSC), Florianopolis, SC (Brazil); Lima, Gelbcke Francine, E-mail: fgelbcke@ccs.ufsc.br [Universidade Federal de Santa Catarina (PEN/UFSC), Florianopolis, SC (Brazil). Programa de Pos-Graduacao em Enfermagem

    2013-11-01

    This qualitative research with workers of seven hemodynamic service of Santa Catarina, Brazil aimed to analyze the use of radiological protection equipment (RPE), as well as wear to the health of workers who use these causes. The study was conducted between March 2010 and November 2010, totaling approximately 30 hours of observations. Results showed resistance to the use of RPE and also showed wear to workers' health, mainly due to the weight and discomfort they cause, as may weigh 7-9 pounds, depending on the model used. Evidenced also the absence of workers due herniated disc, back pain, and other musculo skeletal problems. These complaints, in addition to being related to the use of these protective gear also related with the time that workers remain standing for long periods on certain procedures, such as angioplasty. Given these results, the research recommended the use of these devices with materials, that are already being produced, making lighter aprons, thus avoiding fatigue and back pain and also provide greater comfort by reducing workers' resistance to its use and its adverse consequences.

  13. Safety requirements and radiological protection for ore installations; Requisitos de seguranca e protecao radiologica para instalacoes minero-industriais

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    NONE

    2003-06-15

    This norm establishes the safety and radiological protection requirements for mining installations which manipulates, process and storing ores, raw materials, steriles, slags and wastes containing radionuclides of the uranium and thorium natural series, simultaneously or separated, and which can cause undue exposures to the public and workers, at anytime of the functioning or pos operational stage. This norm applies to the mining installations activities, suspended or which have ceased their activities before the issue date of this norm, destined to the mining, physical, chemical and metallurgical processing, and the industrialization of raw materials and residues containing associated radionuclides from the natural series of uranium and thorium, including the stages of implantation, operation and decommissioning of the installation.

  14. Neural Networks. Diagnostic and inferential measurements; Reti neurali. Diagnostica e misure inferenziali

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    Bonavita, N. [Apc Group Leader, Abb Industria, Genua (Italy); Parisini, T. [Milan Politecnico, Milan (Italy). Dipt. di Elettronica e Informazione

    2000-09-01

    In this work, the use of neural approximating networks is described in the context of fault diagnosis of industrial plants with a particular emphasis to the technique of inferential measurements. The proposed methodology is related to the current literature emphasizing advantages and disadvantages of the analytical redundancy concept. The use of neural approximators for the generation of inferential measurement is described in the context of industrial distributed control systems. [Italian] In questo articolo viene descritta l'utilizzazione degli approssimatori neurali in problemi di diagnostica d'impianto con particolare riferimento alla tecnica delle misure inferenziali. Viene fornito un inquadramento della metodologia rispetto alla letteratura attuale mettendo in risalto vantaggi e svantaggi del concetto di ridondanza analitica. L'uso degli approssimatori neurali per la generazione di misure inferenziali e' illustrato in un contesto di sistemi di controllo distribuito di tipo industriale.

  15. Radiation protection in radiology services in the municipality of Sao Paulo, SP, Brazil; Protecao radiologica nos servicos de radiologia do Municipio de Sao Paulo

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    Senise, Paulo H.; Silva, Ezequiel; Ruzene, Anderson A.; Braga, Adriano C.; Spirgatis, Armim, E-mail: paulo.senise@fidi.org.br, E-mail: ezequieI.siIva@fidi.org.br, E-mail: anderson.ruzene@fidi.org.br, E-mail: adriano.braga@fidi.org.br, E-mail: armim.spirgatis@fidi.org.br [Fundacao lnstituto de Pesquisa e Estudo de Diagnostico por Imagem (FIDI), Sao Paulo, SP (Brazil); Medeiros, Regina B., E-mail: regina.bitelli@fidi.org.br [Instituto de Pesquisa e Ensino em Medicina Diagnostica e Terapeutica (IPmed), Sao Paulo, SP (Brazil)

    2013-10-01

    The FIDI company providing service to local health care system is responsible for managing part of the services diagnostic imaging of Sao Paulo in the South and Southeast ( 60 % ), Eastern ( 20 % ) and Midwest (20 %), Brazil. The generation of images in the municipal net is performed in conventional manner. Since 2009 works a maintenance associated with the verification of the performance of radiological equipment (annual) and processing (monthly) one. In 2008, on the occasion of the agreement between the city hall and FIDI, conditions were evaluated for radiological protection in 52 care units of the municipality. Were carried out verification tests of performance in conventional equipment, mammographic and tomographic equipment, in 138 and 71 analog processors, according to current legislation. In 2008 , 33 % of the devices had technical problems that prevented its operation. Currently only 3.4 % of the 91 are in radiological equipment maintenance. In 2008 the majority of radiological equipment had more than 10 years of manufacturing, while today fixed equipment have been replaced by new ones and therefore the use of mammography and generally have 2 to 3 years of manufacture . Currently the 31 processors are operative in 2008, 28 % were out of order. The replacement of most of the equipment associated with program quality and preventive/corrective maintenance has kept the service in accordance with the law. (author)

  16. The industrial radiography service in Brazil concerning to the radiation protection aspect; O servico de radiografia industrial no Brasil sob o aspecto da protecao radiologica

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    Martins, M M

    1994-12-31

    A study about the industrial radiography situation in Brazil, concerning to the radiation protection aspects is shown. With this purpose it was made an inventory, with utilization of the file of facilities officially registered in industrial application from Brazilian Nuclear Energy Commission (CNEN). It was evaluated the quantity of accelerators, radiation monitors and radiation workers (health physics, operator). As quality and performance indicators of radiation protection the mean doses and the collective doses were used, and their variation from 1987 to 1990. As deficiency signals of radiological protection programs and procedures were utilized the 175 abnormal event occurred (radiological accident and emergency situation) from 1976 to 1992, after an analysis of their causes. The results showed that, for around 2000 monitored workers, the mean dose equivalent was between 0.83 to 2.70 mSv, and the collective dose, between 1.54 and 6.18 Sv.man, from 1987 to 1990. In this period, it was verified a tendency for reduction of means dose and collective dose values. It indicates a possible improvement of radiation protection services or an influence of economical situation of the country. From 175 abnormal events analysed, 456 persons were exposed, with 7.2% of them receiving doses above 50 mSv. These results were compared with those from others countries, such as United Kingdom and united States. (author). 76 refs, 16 figs, 24 tabs.

  17. Radiation protection in hemodynamics work process: the look of the multidisciplinary team; Protecao radiologica no processo de trabalho em hemodinamica: o olhar da equipe multidisciplinar

    Energy Technology Data Exchange (ETDEWEB)

    Borges, Laurete Medeiros; Klauberg, Daniela; Huhn, Andrea; Melo, Juliana Almeida Coelho de, E-mail: laurete@ifsc.edu.br, E-mail: danielaklauberg@hotmail.com, E-mail: andrea.huhn@ifsc.edu.br, E-mail: julianac@ifsc.edu.br [Instituto Federal de Santa Catarina (IFSC), Florianopolis, SC (Brazil)

    2014-07-01

    The study was conducted in a hemodynamics service of a public hospital in Florianopolis, SC, Brazil. Qualitative research with the participation of 13 professionals from a multidisciplinary team: doctors, technicians, technologists in radiology and nurses. The research material was extracted from the observations, semi-structured interviews and documentary analysis. The responses were grouped into three categories relating to: training of hemodynamic professionals and the perception of radiological protection in the work process; occupational exposure and safety of the professionals of Hemodynamics; and continuing education in hemodynamic service. Professionals are daily exposed to ionizing radiation, and for being long procedures, lead to high levels of exposure in workers. In hemodynamic services the risk of biological effects are cumulative, because radiodiagnostic procedures include issuing the higher doses of ionizing radiation in which the personnel exposure is critical. The workforce in the service researched mostly consists of technical professionals who reported little knowledge of radiation protection and ionizing radiation and that this issue was not addressed during their training. However, despite mention little knowledge about radiological protection, participants demonstrated understand the biological effects, especially with regard to pathologies caused by frequent exposure without protection to ionizing radiation. These professionals said they have no knowledge of the proper use of radiological protection equipment and the dosimeter, and that the institution does not provide all individual protective equipment required for the procedures performed in the hemodynamic service. Permanent education in hemodynamic service is very important part in the work process, though, cited by participants as little effectiveness in the institution, even when the professionals show interest in the area. Knowledge of the team providing hemodynamic service calls directly in a safe and conscious practice for the worker himself, as the protection is the best way to ensure the safety of workers.

  18. Norms of radiation protection in uranium and thorium production cycles. Normas de protecao radiologica nos ciclos de producao do uranio e torio

    Energy Technology Data Exchange (ETDEWEB)

    1975-01-01

    A deliberation aiming to complement the basic norms of radiation protection for applying to uranium and thorium production cycle is presented. The activitires of excavation, remotion, storage, and physical and chemical processing of the ores, are included. The transport of radioactive materials into the establishments is governed by these norms. (M.C.K.).

  19. Fundaments for creation of national radiation protection standard for nuclear gauges; Fundamentos para implantacao de norma nacional de protecao radiologica para medidores nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, Luiz Cavalcante

    2016-11-01

    The present work It aims to provide fundaments for the creation of a national standard of practice, safety and responsible use of nuclear gauges in accordance with the recommendations already existing national and international. The work deals with the protection against ionizing radiation, an outline of a proposal for a standard that discriminates in its articles and paragraphs, the basic principles of a proposal for a standard that discriminates in its articles and paragraphs, the basic principles of safety and security, and some pointes that are also relevant such as the responsibilities of those involved in acquisition and nuclear gauge operation, storage, maintenance, testing and emergency situations. The result is to provide a means to limit the dose of operators and people from the public and maintain these limits within the recommended by CNEN, reducing exposure do ionizing radiation, and having greater control in operating the equipment. (author)

  20. Program of training and technical expertise in radiation protection for personnel of medical radiology; Programa de capacitacao e especializacao tecnica em protecao radiologica para profissionais em radiologia medica

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Sergio R. de, E-mail: oliveirasr@fiocruz.br [Fundacao Oswaldo Cruz (EPSJV/FIOCRUZ), Rio de Janeiro, RJ (Brazil). Escola Politecnica de Saude Joaquim Venancio

    2013-07-01

    This work aims to verify the actual conditions for the training of technicians in Radiology, in relation to the knowledge of radiation protection in the field of Medical Diagnostic Radiology. To evaluate the knowledge of professionals was prepared a questionnaire on the topic, having been answered by workers with varied experience. The questionnaire was divided into three parts, being the initial self-evaluation, followed by closed and open issues, all specific knowledge. With a total of 55 questionnaires answered, it was found that 85% of respondents consider themselves able to work in the area performing the function, but when questioned about the technical details regarding the exposure to ionizing radiation, it was found that only 15% of respondents had some knowledge about the subject. In relation to Radiological Protection, was found that little more than 10% of the respondents know about the subject. The results found in this survey outlined the creation of a technical specialization course in radiation protection, which is part of the permanent staff of course of the Polytechnical School of Health of FIOCRUZ, solving, partially, one of the problems pointed out today by health bodies, that is the lack of trained personnel.

  1. Radiation protection optimization in practices for radiopharmaceuticals production at IEN; Otimizacao da protecao radiologica nas praticas para a producao de radiofarmaco no IEN

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Osvaldir Paulo dos

    2004-06-15

    This works has arisen from the need of updating radiological protection procedures, creating new ones and training qualified personnel to perform radiological protection duties in a nuclear facility. The main purpose of the research was to assess and minimize gamma and neutron dose rates emitted during the production and handling of radiopharmaceuticals at IEN/DIRA. A mobile measurements system (SMMG-N) was developed for on-site measurements. This system has proven to be more handy than the equipment formerly used for for this task. It has also proven to reduce the measurements uncertainties and to allow for the standardization of assessment procedures. He dose rates calculated using the data provided by this system have been compared with results obtained otherwise and good agreement was observed between them. This study has confirmed the need to improve the radiation shielding of KIPROS target-chamber and target vault in order to meet the radiological principles of dose rate limitation and optimization. (author)

  2. Considerations on radiation protection of aircraft crew in Brazil; Consideracoes a respeito de protecao radiologica de tripulacoes de aeronaves no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Federico, C.A.; Goncalez, O.L., E-mail: claudiofederico@ieav.cta.b, E-mail: odairl@ieav.cta.b [Centro Tecnico Aeroespacial (CTA-IEAv), Sao Jose dos Campos, SP (Brazil). Inst. de Estudos Avancados; Sordi, G.M.; Caldas, L.V.E., E-mail: lcaldas@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-10-26

    This paper discuss the guidelines existing in the ICRP documents related to radiation protection applied to the aircraft crew and it is presented a brief report on the evolution of these studies in this field, and also the regulations already adopted by the integrating of the European Union, Canada and USA. Also, are presented some peculiarities of Brazilian air space and the legislation applied to work with ionizing radiation, discussing the general aspects of radiation protection applied to the aircraft crew in Brazil

  3. The protection system to Brazilian Nuclear Program; O sistema de protecao ao Programa Nuclear Brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Andreuzza, Mario Giussepp Santezzi Bertottelli [Secretaria de Assuntos Estrategicos (SAE), Brasilia, DF (Brazil)

    1997-12-31

    The Sistema de Protecao ao Programa Nuclear Brasileiro-SIPRON (Protection System to Brazilian Nuclear Program) was established in 1980. It is intended to accomplish in only one system, all the actions related to security and protection for Nuclear Facilities in Brazil. The author presents in detail the protection system SIPRON, describing the system structure and organization, the functions and obligations of the system involved main organizations, as well as, the system operation and behaviour during an postulated occurrence of a nuclear emergency. It is also described an Exercise that happened in June of 1997 at the Nuclear Power Plant (NPP) Angra I, after two simulated tests in December of 1996 and April of 1997. The NPP Angra I Emergency Plan Exercise was a good opportunity to test the SIPRON structure and preparedness program. It was verified, included by International Atomic Energy Agency observers, the system involved organizations effectiveness and the procedures efficacy to protect the public and the environmental. Finally, it is shown the SIPRON activities of routine, the system obstacles and the expected future performances. (author) 3 refs., 3 figs.

  4. Main radiation protection actions for medical personnel as primary responders front of an event with radiological dispersive device; Principais acoes de protecao radiologica para equipe medica como primeiros respondedores frente a um evento com dispositivo de dispersao radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Duque, Hildanielle Ramos

    2015-07-01

    After the terrorist attack in New York, USA, in 2001, there was a worldwide concern about possible attacks using radioactive material in conventional detonators, called as Radiological Dispersal Device (RDD) or 'dirty bomb'. Several studies have been and are being made to form a global knowledge about this type of event. As until now, fortunately, there has not been an event with RDD, the Goiania Radiological Accident in Brazil, 1987, is used as a reference for decision-making. Several teams with technical experts should act in an event with RDD, but the medical staffs who respond quickly to the event must be properly protected from the harmful effects of radiation. Based on the radiological protection experts performance during the Goiania accident and the knowledge from lessons learned of many radiological accidents worldwide, this work presents an adaptation of the radiation protection actions for an event with RDD that helps a medical team as primary responders. The following aspects are presented: the problem of radioactive contamination from the explosion of the device in underground environment, the actions of the first responders and evaluation of health radiation effects. This work was based on specialized articles and papers about radiological accidents and RDD; as well as personal communication and academic information of the Institute of Radiation Protection and Dosimetry. The radiation protection actions, adapted to a terrorist attack event with RDD, have as a scenario a subway station in the capital. The main results are: the use of the basic radiation protection principle of time because there is no condition to take care of a patient keeping distance or using a shielding; the use of full appropriate protection cloths for contaminating materials ensuring the physical safety of professionals, and the medical team monitoring at the end of a medical procedure, checking for surface contamination. The main conclusion is that all medical actions as primary responders must be followed up by radiation protection specialists. (author)

  5. Radiological protection aspects regarding to assistance of the cesium-137 radiation accident victims in Goiania; Aspectos de protecao radiologica no atendimento as vitimas do acidente radiologico com cesio-137 em Goiania

    Energy Technology Data Exchange (ETDEWEB)

    Hunt, John Graham; Oliveira Filho, Denizart Silveira de; Rabelo, Paulo Ney Pamplona [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil)

    1997-12-31

    The radiological protection measures taken in the general hospital of Goiania (HGG/INAMPS) and in the FEBEM institution, due to the accident involving Cesium-137 are described, as well as the work of the IRD personnel in the areas of: radiological protection of the medical and auxiliary staff, contamination control of the ward, radiological monitoring of the patients, waste management, personnel and area decontamination and patient transportation. (author) 4 refs., 11 figs.; e-mail: marcos at omega.lncc.br

  6. Evaluation of the conditions and practices of radiological protection technicians in radiology, according to Ordinance 453; Avaliacao das condicoes e das praticas de protecao radiologica dos tecnicos em radiologia, segundo a portaria 453

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Rogerio Ferreira da

    2013-10-01

    Professionals in radiology suffer whole body exposure to low doses for long periods . The system of radiological protection should keep exposures below recommended thresholds, thus avoiding the stochastic effects that can be triggered with any dose level value, and there is not a threshold for induction of the same. Therefore it is important to use personal dosimeter for monitoring doses and protective equipment. The increase in procedures using ionizing radiation in recent years has been noted with concern, since many companies are not complying with the standards of protection. This is because some procedures may be performed without the need of surgery, which presents a greater risk to the patient. Furthermore, Brazilians are being exposed to radiation without necessity. The reasons range from radiological equipment miscalibrated to poorly trained staff. Thus we evaluate the conditions and practices of radiation protection technicians in radiology according to Ordinance 453 in Goiania, GO, Brazil. Through a descriptive survey with a quantitative approach, we used the technique of gathering information based on a questionnaire. From this survey, we identified the procedures used by radiation protection professionals and concluded that there are failures in the procedures for protecting patients and accompanying and in the training of the professionals. (author)

  7. Radiological protection for multislice computed tomography in pregnant women in the supplementary diagnosis of fetal Thanatophoric dysplasia; Cuidados com protecao radiologica durante tomografia computadorizada multslice em gestante no diagnostico complementar de displasia tanatoforica fetal

    Energy Technology Data Exchange (ETDEWEB)

    Castro, Jose Thiago de Souza de; Lima, Rogerio Aparecido; Ferreira, Josias dos Santos, E-mail: jthiagoc@hc.unicamp.br, E-mail: rxroger@hc.unicamp.br, E-mail: josiasrx@hotmail.com [Universidade Estadual de Campinas (HC/UNICAMP), SP (Brazil). Hospital de Clinicas. Dept. de Radiologia

    2014-07-01

    Thanatophoric Dysplasia is a rare genetic disorder that leads to the normal growth of the individual leaving him with short stature deterrent. Patients with this syndrome have disproportionately short limbs, with extra skin folds, narrowing chest, small ribs, underdeveloped lungs and hydrocephalus. The Thanatophoric Dysplasia can be diagnosed by ultrasonography (US), with approximately 23 weeks of gestation. If there is suspicion of a lethal skeletal dysplasia CT with 3D reconstruction can be suggested. In the use of CT Multslice 3D for prenatal diagnosis of Thanatophoric Dysplasia, one should take into account the radiation dose. To reduce the radiation dose in the pregnant woman and her fetus, it is possible to employ a chain of smaller pipe without compromising the picture quality through automatic exposure control (AEC) which is based on the principle of CT Multslice. AEC Such systems are designed to adjust the tube current according to the patients shape, size, and attenuation of X-rays. One study compared the use of 2D-US and 3D-CT completion is lower cost and the absence of radiation in the US, the method is dependent on the volume of amniotic fluid and fetal position. The 3D-CT can demonstrate all fetal skeleton. The 2D US provided correct diagnosis in four of the six cases studied, while 3D-CT yielded the correct diagnosis in all six cases. (author)

  8. Analysis of conditions to safety and radiological protection of Brazilian research particle accelerators facilities; Analise das condicoes de protecao e seguranca radiologicas das instalacoes com aceleradores de particulas na area de pesquisa no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Lourenco, Manuel Jacinto Martins

    2010-07-01

    Eleven institutions of education and research in Brazil use particle accelerators, which fulfill different functions and activities. Currently, these institutions employ a total of fifteen accelerators. In this paper, the object of study is the radiological protection of occupationally exposed individuals, the general public and the radiation safety of particle accelerators. Research facilities with accelerators are classified in categories I and II according to the International Atomic Energy Agency or groups IX and X in accordance with the Brazilian National Commission of Nuclear Energy. Of the 15 accelerators in use for research in Brazil, four belong to category I or group X and eleven belong to category II or group IX. The methodology presented and developed in this work was made through the inspection and assessment of safety and radiological protection of thirteen particle accelerators facilities, and its main purpose was to promote safer use of this practice by following established guidelines for safety and radiological protection. The results presented in this work showed the need to create a program, in our country, for the control of safety and radiological protection of this ionizing radiation practice. (author)

  9. Informatization of radiological protection:new tools of information dissemination and sharing knowledge; Informatizacao dos programas de protecao radiologica: novas ferramentas para disseminacao da informacao e compartilhamento do conhecimento

    Energy Technology Data Exchange (ETDEWEB)

    Levy, Denise S., E-mail: denise@omiccron.com.br [Omiccron Programacao Grafica, Atibaia, SP (Brazil); Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Sordi, Gian Maria A.A., E-mail: gian@atomo.com.br [ATOMO - Radioprotecao e Seguranca Nuclear S/C Ltda, Sao Paulo, SP (Brazil); Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    This project aims the informatization of the radiological protection optimization programs in a single system in order to offer unified programs and inter-related information in Portuguese, providing Brazilian radioactive facilities a complete repository for research, consultation and information. In order to meet both national and international recommendations within the scope of this work, we conducted a comprehensive job of perception about each program contents as well as its real dimension, identifying and detailing the vital parts of programs. The content includes concepts, definitions and theory in addition to the optimization programs, help decision making techniques, information related to protection costs, radiation doses and detriment. The content allows to answer to every question when an optimization program is elaborated, according to decision maker's specific situation. For dimensioning the work of informatization and developing the WEB platform according to the needs of the target public profile, we have conducted an extensive research regarding the possibilities of Information and Communication Technology access in companies throughout the country, which allowed to define the best interfaces tools and resources. The servers processing power added to the technology of relational databases allow to integrate information from different sources, enabling complex queries with reduced response time. The project was implemented in a web environment, using the Web 2.0 tools and resources that allow the entire organizational structure, that would enable the inter-relationships and joints needed for proper use of information technology in radiological protection. This project uses the combination of multiple technologies, maximizing the resources available in each one of them in order to achieve our goals. The investigation of the usage profile for five months enabled important data that suggest new possibilities for the development of computerization of other radiation protection programs. According to the results of this project, we intend to lead a further research work and complete the informatization system. (author)

  10. Optimization programs of radiation protection applied to post-graduation and encouraging research; Programas de otimizacao da protecao radiologica aplicados a pos-graduacao e o incentivo a pesquisa

    Energy Technology Data Exchange (ETDEWEB)

    Levy, Denise S., E-mail: denise@omiccron.com.br [Omiccron Programacao Grafica, Sao Paulo, Atibaia, SP (Brazil); Sordi, Gian Maria A.A., E-mail: adelia@atomo.com.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    In 2011 we started the automation and integration of radiological protection optimization programs, in order to offer unified programs and inter-related information in Portuguese, providing Brazilian radioactive facilities a complete repository for research, consultation and information. The authors of this project extended it to postgraduate education, in order to encourage postgraduate students researches, expanding methods for enhancing student learning through the use of different combined resources, such as educational technology, information technology and group dynamics. This new methodology was applied in a postgraduate discipline at Instituto de Pesquisas Energeticas e Nucleares (IPEN), Brazil, in the postgraduate discipline entitled Fundamental Elements of Radiological Protection (TNA-5732). Students have six weeks to assimilate a complex content of optimization, considering national and international standards, guidelines and recommendations published by different organizations over the past decades. Unlike traditional classes, in which students receive prompt responses, this new methodology stimulates discussion, encouraging collective thinking processes and promoting ongoing personal reflection and researches. Case-oriented problem-solving permitted students to play different roles, promoting whole-group discussions and cooperative learning, approaching theory and practical applications. Students discussed different papers, published in international conferences, and their implications according to current standards. The automation of optimization programs was essential as a research tool during the course. The results of this experience were evaluated in two consecutive years. We had excellent results compared to the previous 14 years. The methodology has exceeded expectations and will be also applied in 2013 to ionizing radiation monitoring postgraduate classes. (author)

  11. Evaluation of radiological protection and dose of skin entrance in paediatric dentistry examinations; Avaliacao da protecao radiologica e da dose de entrada na pele em exames de odontologia pediatrica

    Energy Technology Data Exchange (ETDEWEB)

    Khoury, Helen Jamil [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de Energia Nuclear; Vasconcelos, Flavia Maria Nassar de [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil); Silveira, Marcia Maria Fonseca da [Universidade de Pernambuco (UPE), Recife, PE (Brazil). Fac. de Odontologia; Couto, Geraldo Bosco Lindoso [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Fac. de Odontopediatria; Brasileiro, Izabela Vanderley

    2005-07-01

    In this work the radiological protection conditions and dose at the entrance of pediatric patients undergoing dental intraoral radiographs were evaluated. The study was conducted in two clinics of the dentistry course at the Federal University of Pernambuco, Recife, PB, Brazil, equipped with conventional X-ray apparatus, with 60 and 70 kV. 254 exams of 113 patients between the ages of 3 to 12 years were evaluated. The skin entrance dose was estimated using TLD-100 thermoluminescent dosemeters. During the examination were also recorded information regarding the time of exposure, radiographic technique used, use of thyroid protectors and lead apron, angle and distance of the cone Locator to the patient's skin. The results showed that the input skin doses ranged from 0.3 mGy to 10mGy. The lead apron was used in 71% of exams while the thyroid shield was only used in 58% of the exams. The exposure times ranged from 0,5s to 1,5s. From the results it can be concluded that the radiological procedures are not optimized and that in some cases the patient dose is high.

  12. Ion chamber-electrometer measurement system for radiation protection tests in X-ray equipment for interventional procedures; Sistema de medicao camara de ionizacao-eletrometro para ensaios de protecao radiologica em equipamentos de raios X para procedimentos intervencionistas

    Energy Technology Data Exchange (ETDEWEB)

    Bottaro, Marcio

    2012-07-01

    A new parallel plate ionization chamber with volume of 500 cc and an electrometer with digital interface for data acquisition, configuring an ion chamber electrometer measurement system, were developed to comply with specific requirements for compulsory radiation protection tests in interventional X-ray equipment. The ion chamber has as main characteristics: low cost, mechanical strength and response variation with beam energy of less than 5% in the 40 kV to 150 kV range. The electrometer has a high gain (5x10{sup 8} V/A) transimpedance amplifier circuit and a data acquisition and control system developed in LabVIEW Registered-Sign platform, including an integrated power supply for the ion chamber bias with adjustable DC voltage output from O to 1000 V and an air density correction system. Electric field calculations, laboratory measurements in standard beams and computational simulations of radiation interactions in chamber volume with Monte Carlo Method were employed in the elaborated methodology of the ion chamber development, which was tested and validated. It was also developed a simplified methodology for electrometer calibration that assures metrological trustworthiness of the measurement system. Tests for the system performance evaluation as environmental influence response, energy response, angular dependency, linearity and air kerma and air kerma rate dependency were performed according to international standards and requirements. Additionally, for a detailed evaluation of the developed ion chamber, simulations with various scattered radiation spectra were performed. The system was applied in leakage radiation, residual radiation and scattered radiation tests, being compared with other reference systems and validated for laboratorial test routine. (author)

  13. Implementation of the procedure of high radiation of the forum about radiological protection in the health care environment; Implantacion del procedimiento de alta radiologica del foro sobre proteccion radiologica en el medio sanitario

    Energy Technology Data Exchange (ETDEWEB)

    Castro Novais, J.; Pardo Perez, E.; Molina Lopez, M. Y.; Ruiz Maqueda, S.; Maldonado Suarez, A.

    2013-07-01

    The objective of this work is to present the results of the implementation in our hospital the procedure of high radiological in patients treated with 131 I described in the document presented by the Forum on Radiation Protection in the Health Environment formed by the Consejo de Seguridad Nuclear and the Spanish societies of Fisica Medica and Proteccion Radiologica. (Author)

  14. EVALUACIÓN DE LOS PROTOCOLOS IPSEC Y SSL EN LA TRANSMISIÓN SEGURA DE IMÁGENES DIAGNOSTICAS EN TELERADIOLOGIA UTILIZANDO EL ESTÁNDAR DICOM

    Directory of Open Access Journals (Sweden)

    Jorge Luis Lugo Rosero

    2011-08-01

    Full Text Available Las imágenes diagnosticas digitales constituyen hoy día un paradigma de requerimientos para cualquier sistema informático; se debe garantizar la confidencialidad de la información médica de los pacientes mediante sistemas de comunicación seguros, cumpliendo de esta manera con las políticas de control de calidad en técnicas de Teleradiologia. En este articulo primero se describe un escenario típico de comunicación entre los dispositivos de captura de placas y los elementos de visualizacion y almacenamiento de las mismas, asi como la forma en la que se transmiten dichas tomas diagnosticas de un sitio a otro, posteriormente se realiza la comparación entre  los protocolos más utilizados en esta tarea y finalmente se analizan los resultados obtenidos al transmitir varios estudios medicos por una red LAN garantizando la seguridad y confidencialidad de los datos de trabajo.

  15. Solitary pulmonary nodule: radiologic features and diagnostic approach; Nodulo pulmonar solitario: caracteristicas radiologicas y abordaje diagnostico

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Cambronero, Luis Enrique

    2012-07-01

    A literature review is conducted on the solitary pulmonary nodule, to determine the diagnostic methods and specific characteristics. The diagnostic methods used have been: chest radiography, computed tomography, positron emission tomography and magnetic resonance imaging. The radiological features are defined: location, size, definition of contours or edges (margins), densitometric and attenuation characteristics, cavitation, air bronchogram, growth, doubling time, satellite nodules, nutrient vessels [Spanish] Una revision bibliografica es realizada sobre el nodulo pulmonar solitario, para determinar los metodos de diagnostico y caracteristicas especificas. Los metodos de diagnostico utilizados han sido: la radiografia de torax, tomografia computarizada, tomografia por emision de positrones y resonancia magnetica. Las caracteristicas radiologicas son definidas: localizacion, tamano, definicion de los bordes o contornos (margenes), caracteristicas densitometricas y de atenuacion, cavitacion, broncograma aereo, crecimiento, tiempo de duplicacion, nodulos satelite, vasos nutrientes.

  16. Production of teaching materials of nuclear medicine for use in career of Imagenologia Diagnostica y Terapeutica of the Escuela de Tecnologias de Salud of the Universidad de Costa Rica

    International Nuclear Information System (INIS)

    Aguilar Blanco, Luis Alberto; Bertarioni Alfaro, Carol; Elizondo Vargas, David; Gutierrez Villareal, Raul E.; Quesada Silva, Fernando

    2008-01-01

    One of the main obstacles in the career of Imagenologia Diagnostica y Terapeutica of the Escuela de Tecnologias de Salud of the Universidad de Costa Rica has been access to bibliographic material of reference in Spanish. The topics most relevant of nuclear medicine of interest to imaging specialist and other disciplines as: medicine, physics, pharmacy and nursing, have been identified for the purpose of having a bibliographic body; experts have reviewed the selection in each subject. Topics of interest were identified and grouped into five specific teaching areas: 1. Radiation protection, 2. Quality Control of Nuclear Medicine Instruments, 3. Radiopharmacy, 4. Planar Nuclear Medicine, 5. Nuclear Medicine SPECT and PET. (author) [es

  17. Guidelines for the development and environmental protection of the outcrop area in the Guarani aquifer system in Sao Paulo State, Brazil; Diretrizes para o desenvolvimento e protecao ambiental da area de afloramento do Sistema Aquifero Guarani no estado de Sao Paulo, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Alburquerque Filho, J. L.; Carvalho, A. M. de; Ikematsu, P.; Costa Barbosa, M.; Iritani, M.; Nogueira Pressinoti, M. M.; Rocha, G.; Pereira Militao da Silva, M.; Theodorovicz, A.

    2012-11-01

    The Guarani aquifer system (GAS) is an important public water source. The unconfined areas are those where the aquifer is more vulnerable to contamination, justifying the creation of a Protection and Recovery Source Area (Area de Protecao e Recuperacao de Manancial - APRM), as established in Act 9.866/97 of Sao Paulo State. We present here the results of the project Environmental Diagnosis in Support of the Plan for the Development and Environmental Protection Plan of the Outcrop Area of the Guarani Aquifer System in Sao Paulo State (Plano de Desenvolvimento e Protecao Ambiental da Area de Afloramento do Sistema Aquifero Guarani no Estado de Sao Paulo PDPA-SAG) and describe the areas of intervention defined by this law. The characterization of the area studied focuses on the physical and socio-economic aspects of the region, in addition to the pertinent legislation. Partial results indicate that the condition of the aquifer is satisfactory, but territorial discipline continues to be of prime importance. (Author)

  18. Personal radiation monitoring with thermoluminescent dosemeters

    International Nuclear Information System (INIS)

    Miano, S.C.

    1987-01-01

    The technique of personal dosimetry used by SAPRA (Servico de Assessoria e Protecao Radiologica S/C Ltda., Brazil) is presented. Thermoluminescent monitors and CaSO 4 : Dy are used in pastilles united by teflon. Characteristics of the dosemeters are briefly reported. The system of thermoluminescent measurement, designed and constructed by SAPRA, and the system of personal monitoring are described. (M.A.C.) [pt

  19. Necrotizing fasciitis of soft tissues. Diagnostic imaging findings and literature review; Le fascite necrotizzante dei tessuti molli. Ruolo della diagnostica per immagini e revisione della letteratura

    Energy Technology Data Exchange (ETDEWEB)

    Parenti, G.C.; Marri, C. [Ospedale Civile S. Maria delle Croci, Ravenna (Italy). Servizio di Radiodiagnostica; Calandra, G. [Ospedale Civile S. Maria delle Croci, Ravenna (Italy). Unita' operativa di Pronto Soccorso; Morisi, C. [Ospedale Civile S. Maria delle Croci, Ravenna (Italy). Servizio di Anatomia Patologica; Zabberoni, W. [Ospedale Civile S. Maria delle Croci, Ravenna (Italy). Div. di Malattie Infettive, Gruppo di rilevamento dati sulle INPS-ASL

    2000-05-01

    maggio 1991 a febbraio 1998 sono giunti alla nostra osservazione 130 casi di infezioni necrotizzanti progressive dei tessuti molli; in 32 casi l'eta' era compresa fra 22 e 84 anni; la diagnosi istologica retrospettiva e' risultata quella della fascite necrotizzante. Le sedi interessate dal processo sono state: arti (26/32), regioni cervicale (5/32) e perineale (1/32). Diciannove pazienti (19/32) sono stati sottoposti d'urgenza a esame radiografico eseguito anche per lo studio dei tessuti molli. L'esame ecografico e' stato eseguito d'urgenza in tutti i 32 pazienti. La valutazione dei pazienti con sospetto di infezioni necrosanti progressive e' affidata di solito a un gruppo di operatori esperti in diagnostica ecografica dei tessuti molli perischeletrici. L'esame TC e' stato eseguito in 9 casi (9/32); a ognuno di questi pazienti e' stato somministrato mdc iodato per via endovenosa. Con gli esami ecografico ed eco color Doppler, nel sospetto di fascite necrotizzante, e' possibile offrire indicazioni utili e affidabili per il corretto e rapido orientamento diagnostico; in particolare tale metodica e' in grado di rilevare precocemente alterazioni al tessuto adiposo sottocutaneo (28/32), alla fascia (18/32) e al tessuto molecolare (15/32). E' stata riscontrata buona correlazione tra alterazione tissutale rilevata con l'esame ecografico e reperto istologico; l'ecografia non ha evidenziato alterazioni al tessuto adiposo sottocutaneo (3/32) e al tessuto molecolare (8/32) in 11 casi pur evidenti all'esame istologico. La TC con mdc puo' essere utile per la migliore definizione dell'estensione della malattia e per la dimostrazione di eventuali complicanze, soprattutto in sedi difficili da raggiungere con l'ecografia. Le probabilita' di guarigione per i pazienti affetti da fascite necrotizzante sono direttamente proporzionali alla precocita' della diagnosi e all

  20. National subprogram 'Sistema Nacional de Vigilancia Radiologica Ambiental y de los Alimentos en la Republica de Cuba'

    International Nuclear Information System (INIS)

    Fernandez Gomez, Isis Maria

    2008-01-01

    The purpose of this work is to inform and raise awareness about the Sistema Nacional de Vigilancia Radiologica Ambiental y de los Alimentos in the Republica de Cuba. The radiological environmental monitoring is defined as the assessment of current or potential exposure of the population to radiation and radioactive materials released into the environment. It determines when is required the radiological environmental monitoring, what is a radiological environmental monitoring program, which are the points to consider during the design of this kind of program and what are their objectives. In addition, the program on the Republica de Cuba is focused, referring to the components of a radiological environmental monitoring program; equipment for the detection of radiations; the procedures for collecting environmental samples and laboratory analysis capabilities. It also noted the techniques of radiological environmental monitoring and is described extensively the Red Nacional de Vigilancia Ambiental of the Republica de Cuba. Likewise, it is included the table on radiological monitoring of food and water. Other radiological monitoring programs in Cuba are commented as the radiological control of industrial scrap [es

  1. Verification of the correlation between the {sup 210} Pb and the chemical composition of the incrustations found on gas pipelines and the implication on radiological protection; Verificacao da correlacao entre a atividade de {sup 210}Pb e a composicao quimica de incrustacoes encontradas em linhas de gas e a implicacao em protecao radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Franciane Martins de Carvalho

    2004-07-01

    In the last decades, the occurrence of solid residual deposits, known as black powder, in natural-gas pipelines, gathering systems and compression equipment from gas industries has raised increasing regulatory concerns in terms of radiological protection. Concerns are also raised about the waste disposal and management of the radioactive residues eventually produced. Recent projections indicate a significant increase in the production of natural-gas and its products, due to a growing commercial demand, which leads to the production of huge amounts of residues. Thus, more information is needed in order to allow a preliminary evaluation of the radiological profile of this type of industry. In black powder residues, the most prevalent radioisotope is {sup 210}Pb. The present work aimed to investigate the correlation between the chemical composition of the residue and the concentration of {sup 210}Pb, in black powder samples collected at Bacia de Campos, in the State of Rio de Janeiro, Brazil. The main objective was to generate information to regulatory authorities, to the National Commission of Nuclear Energy (CNEN) and to companies that produce natural-gas, such as PETROBRAS. Based on the information, the gas producing companies could elaborate radiological protection guidelines, and also decide about the need for implementation of a waste management program at the installation. The samples of black powder analyzed at the present work have confirmed the existence of such correlation between the concentration of {sup 210}Pb and chemical parameters. In principle, the present results make the use of such correlation feasible for preliminary evaluations of the {sup 210}Pb levels in natural-gas installations. On the other hand, given the geographic limitations, a broader study is recommended, in order to evaluate the investigated correlation, which could be used as a guiding tool for the Brazilian industry of production and processing of natural-gas.(author)

  2. Evaluation of conventional x-ray diagnostic equipment and radiological protection systems of hospitals and clinics installed in Recife city, Brazil; Avaliacao dos equipamentos de raios-X diagnostico convencionais e dos sistemas de protecao radiologica de clinicas e hospitais da cidade de Recife

    Energy Technology Data Exchange (ETDEWEB)

    Passos, Robson Silva

    1999-05-15

    Diagnostic radiology is the main contributor to the man-made exposure of general population. Since Quality Assurance (QA) programs ensure high quality diagnostic images with the lowest possible radiation dose to the patient, it has been recommended that all introduce QA programs for their radiological facilities. Consequently it is important to check the adequacy of equipment operating parameters in diagnostic radiography facilities, to ensure that a high quality of service is delivered. The purpose of this study was to evaluate the operating conditions of diagnostic units installed in Recife, Pernambuco. The study included 31 X-ray units from both public and private diagnostic services. The following parameters were evaluated: coincidence between the luminous and radiation fields; alignment of the radiation beam; agreement between the real and preset values of kVp and exposure time; filtration; half value lower (HVL); luminance of the view box; uniformity of the luminance; illuminance of the environment. The results showed that 20% of the equipment surveyed exhibited discrepancies between the luminous and radiation fields greater than 2% of the source to skin distance. The test of kilovoltage showed that 48% of the units do not fulfill the acceptability criteria, presenting discrepancies higher than {+-} 10% between the measured and preset values. The results of the accuracy of the timer indicated that 81% of the equipment surveyed present a discrepancy greater than {+-} 10% between the time selected in the control panel and actual exposure time.The test of the filtration shown that, in 20% of the equipment, this was inferior to 2,5 mm Al. The test of the luminance of view box shown that 96% of the equipment, shown a luminance lower of 2.000 cd/m{sup 2}. Related to the test of the uniformity of the luminance, 81 % of the equipment shown a variation of the uniformity higher then 10%. The test of the iluminancy of the environment shown that 61 % of the equipment presented on iluminancy level out of the gap between 50 and 100 lux. The results of this survey showed that a high percentage of the equipment surveyed demonstrated inadequate operating conditions, reinforcing the need to implement quality control protocols in conventional x-ray units located in Recife. (author)

  3. Papers of the Fifth Annual Congress of the Sociedad Mexicana de Seguridad Radiologica, A.C., 2. Regional Congress on Radiological and Nuclear Safety. Vol. 2 (pt.2)

    International Nuclear Information System (INIS)

    1993-11-01

    The fulfillment of the Fifth Annual Congress of the Sociedad Mexicana de Seguridad Radiologica, A.C., this time inside the frame of the Second Regional Congress of Radiological and Nuclear Safety, is no doubt an event that approach us to make of this forum the most important for the exchange of ideas and the approaching among the members of our nuclear community. This time, the beautiful colonial city of Zacatecas, welcome us for this event, gathering fifty works in the areas of fuel cycle, power reactor operation, reactor physics, research reactors, transient analysis and instrumentation and experimental techniques. This significant number of works reaffirm the great interest of the nuclear community in to take part, presenting its most recent developments. The reporting belongs to seven of the main institutions of the country who dedicate, or are related with the technological development of the nuclear area and its different branches. With regard to participants of foreign countries, papers representing to Argentina, Brazil, Chile, United States of North America and Peru are included. The efforts of all the members of the Sociedad Mexicana de Seguridad Radiologica, A.C. has been addressed to do of the event a mean to make easy the exchange of ideas and to get acquainted with the work of other colleagues, in an ambient of warmth and surmounting. (Author)

  4. Proceedings of the 3. Brazilian forum on health science and technology; 15. Brazilian congress on biomedical engineering; 6. Brazilian congress of physicists in medicine; 5. Brazilian congress of informatics in health; Brazilian meeting on radiological protection. v. 1; Anais do 3. Forum nacional de ciencia e tecnologia em saude; 15. Congresso brasileiro de engenharia biomedica; 6. Congresso brasileiro de fisicos em medicina; 5. Congresso brasileiro de informatica em saude; Encontro brasileiro de protecao radiologica. v. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The importance of radiological protection and monitoring, development of quality control programs, radiation protection standards and procedures, are discussed. Such aspects are highlighted in nuclear medicine and radiodiagnosis to improve performance - considering both better image and safety working conditions

  5. Radiation protection; Proteccion Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Ures Pantazi, M [Universidad de la Republica, Facultad de Quimica (Uruguay)

    1994-12-31

    This work define procedures and controls about ionizing radiations. Between some definitions it found the following topics: radiation dose, risk, biological effects, international radioprotection bodies, workers exposure, accidental exposure, emergencies and radiation protection.

  6. Advance of the National Program of Radiological Protection and Safety for medical diagnostic with X-rays; Avance del Programa Nacional de Proteccion y Seguridad Radiologica para diagnostico medico con rayos X

    Energy Technology Data Exchange (ETDEWEB)

    Verdejo S, M. [Direccion de Riesgos Radiologicos, Direccion General de Salud Ambiental (Mexico)

    1999-07-01

    The National Program of Radiological Protection and Safety for medical diagnostic with X-ray (Programa Nacional de Proteccion y Seguridad Radiologica para diagnostico medico con rayos X) was initiated in the General Direction of Environmental Health (Direccion General de Salud Ambiental) in 1995. Task coordinated with different dependences of the Public Sector in collaboration between the Secretary of Health (Secretaria de Salud), the National Commission of Nuclear Safety and Safeguards (Comision Nacional de Seguridad Nuclear y Salvaguardias) and, the National Institute of Nuclear Research (Instituto Nacional de Investigaciones Nucleares). The surveillance to the fulfilment of the standardization in matter of Radiological Protection and Safety in the medical diagnostic with X-rays has been obtained for an important advance in the Public sector and it has been arousing interest in the Private sector. (Author)

  7. Diagnostica di processi molecolari in scariche a pressione atmosferica

    OpenAIRE

    Scarduelli, Giorgina

    2009-01-01

    This work reports on the study of the products obtained by the plasma treatment of methane mixtures or benzene mixtures in a coaxial cylindrical dielectric barrier discharge reactor at atmospheric pressure. The plasma products have been analyzed by spectroscopic and mass spectrometric techniques (GC-MS, FT-IR, NMR, MALDI-TOF MS). Moreover, in this work we report the plasma phase characterization in a parallel plate DBD reactor by using OES and LIF tecniques.

  8. Radiation protection of patients in medical exposures: regional project IAEA 2007-2008 RLA/9/57;Proteccion radiologica de pacientes en exposiciones medicas: proyecto regional IAEA 2007-2008 RLA/9/57

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    -area product (Pk, a); Mammography theme contains: Application and criteria for image quality: a study of the mammography - skull flow, Sheet for data collection in patients CC and MLO, Sheet for data collection in mammography practices, include equipment description, determination of yields, Hemi reducer thickness, determination of {sup c,} data from the patient and glandular dose; Tomography theme contains: General data about computed tomography services in the Hospital Max Peralta which include report of tests and dosimetry in phantom, in air, information from used scanners; Radiology theme contains: Dosimetry of patients in general radiology where shows forms for determining the performance of x-ray tube; Minimum values, maximum and Kerma in air average in surface of entry for PA Chest radiographs; Measures to generate the yield curve; Patient data, the technical parameters and image quality; Forms by country; Kerma in air at the entrance to the PA Chest skin, the dosimetry in general radiology is included with practices and methodology for the measurement and evaluation, also shows forms with protocols for measurements with TLDS;La proteccion radiologica de pacientes en exposiciones medicas como proyecto esta integrado por 5 regionales que abarcan unos 80 paises, 94 hospitales y 120 actividades relacionadas con radiologia y radiacion. Un taller fue desarrollado con los siguientes objetivos: proporcionar los elementos teoricos y practicos para que los profesionales en proteccion radiologica de pacientes desarrollen tareas encomendadas, identificar la metodologia de medicion mediante hojas para la captura de datos e interpretacion de los mismos, realizar ejercicios practicos de los procedimientos a aplicar en radiologia, mamografia, tomografia computarizada e intervencionismo. Dicho taller se dividio en secciones teoricas y practicas, secciones de analisis e interpretacion de datos y un examen final. Este proyecto pretende identificar fortalezas y debilidades, objetivos

  9. Radiation protection of patients in medical exposures: regional project IAEA 2007-2008 RLA/9/57; Proteccion radiologica de pacientes en exposiciones medicas: proyecto regional IAEA 2007-2008 RLA/9/57

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    -area product (Pk, a); Mammography theme contains: Application and criteria for image quality: a study of the mammography - skull flow, Sheet for data collection in patients CC and MLO, Sheet for data collection in mammography practices, include equipment description, determination of yields, Hemi reducer thickness, determination of {sup c,} data from the patient and glandular dose; Tomography theme contains: General data about computed tomography services in the Hospital Max Peralta which include report of tests and dosimetry in phantom, in air, information from used scanners; Radiology theme contains: Dosimetry of patients in general radiology where shows forms for determining the performance of x-ray tube; Minimum values, maximum and Kerma in air average in surface of entry for PA Chest radiographs; Measures to generate the yield curve; Patient data, the technical parameters and image quality; Forms by country; Kerma in air at the entrance to the PA Chest skin, the dosimetry in general radiology is included with practices and methodology for the measurement and evaluation, also shows forms with protocols for measurements with TLDS;La proteccion radiologica de pacientes en exposiciones medicas como proyecto esta integrado por 5 regionales que abarcan unos 80 paises, 94 hospitales y 120 actividades relacionadas con radiologia y radiacion. Un taller fue desarrollado con los siguientes objetivos: proporcionar los elementos teoricos y practicos para que los profesionales en proteccion radiologica de pacientes desarrollen tareas encomendadas, identificar la metodologia de medicion mediante hojas para la captura de datos e interpretacion de los mismos, realizar ejercicios practicos de los procedimientos a aplicar en radiologia, mamografia, tomografia computarizada e intervencionismo. Dicho taller se dividio en secciones teoricas y practicas, secciones de analisis e interpretacion de datos y un examen final. Este proyecto pretende identificar fortalezas y debilidades, objetivos

  10. Protection coordination program - PCP; Programa de coordenacao de Protecao - PCP

    Energy Technology Data Exchange (ETDEWEB)

    Koehler, Marcos; Pinto, Jose Molinari; Shigueoka, Olimpio Sadao [Companhia Paranaense de Energia (COPEL), Curitiba, PR (Brazil); Sciammarella, Salvatore Filippo; Klimkowski, Mario [Instituto de Tecnologia para o Desenvolvimento (LACTEC), Curitiba, PR (Brazil); Niederheitmann Junior, Heinz Arthur [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil)

    2000-07-01

    This paper presents the potential of this tool and also the advantages obtained by the implantation of this new procedure in the COPEL. This paper approaches the elaboration of program modeling, the data bank, the types of equipment, and the various available functions, and a real case as an example.

  11. Current diagnostic approach of bone tumors in childhood; Abordagem diagnostica atual dos tumores osseos na infancia

    Energy Technology Data Exchange (ETDEWEB)

    Torre, Marcia Barbosa; Scatigno Neto, Andre [Sao Paulo Univ., SP (Brazil). Faculdade de Medicina. Hospital das Clinicas

    1995-09-01

    The authors analyze the magnetic resonance imaging (MRI) as the imaging modality of choice for evaluation of patients with bone tumors or soft tissue tumors. The advent of such a sensitive imaging modality is fortuitous and coincides with a recent change in the therapeutic approach to primary bone tumors. MRI is extremely valuable in monitoring the tumor response to the initial chemotherapy and is accurate defining the margins of tumor, facilitating planning of limb salvage surgical procedures. (author). 5 refs., 8 figs.

  12. Quality assurance program on diagnostic radiology; Programa de garantia de qualidade em radiologia diagnostica

    Energy Technology Data Exchange (ETDEWEB)

    Yacovenco, Alejandro; Borges, Jose Carlos [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia; Lira, Silvio H. de [Hospital Central da Policia Militar, Rio de Janeiro, RJ (Brazil); Mota, Helvecio Correa [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil)

    1995-12-31

    Aiming to elaborate a methodology to optimize the performance of the Radiology Service of the Military Police Hospital, in Rio de Janeiro, some goals were established: improvement of the attendance to patients; improvement of the qualification of technicians; achievement and maintenance of high degrees of quality in each step of the radiological process; improvement of the image quality; optimization of dose per examination and cost reduction. (author). 8 refs., 3 figs.

  13. Quality assurance program in diagnostic radiology; Programa de garantia de qualidade em radiologia diagnostica

    Energy Technology Data Exchange (ETDEWEB)

    Yacovenco, Alejandro; Borges, J.C. [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia; Lira, S.H. [Hospital Central da Policia Militar, Rio de Janeiro, RJ (Brazil). Servico de Radiologia; Mota, H.C. [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil)

    1994-07-01

    Aiming to elaborate a methodology to optimize the performance of the Radiology Service of the Military Police Hospital, in Rio dee Janeiro, some goals were established: improvement of the attendance to patients; improvement of the qualification of technicians; achievement and maintenance of high degrees of quality in each step of the radiological process; improvement of the image quality; optimization of dose per examination and cost reduction. The procedure used to detect faults in the radiological process was the analysis of causes of film losses. Results show a 70% reduction in the film rejection rate. 74% of total identified faults were due to equipment, 11% to films, 10% to patients and 5% to developing. The reduction in the cost of developed film reached 75%. A training course given to the staff of the radiological service fully reached its goals, contributing, with the staff motivation, mostly to the success of the program. This success indicates that, with a serious persistent work, it is possible to offer to patients services within their expectations, even at a public hospital. Such programs should be supported by health authorities, not only due to their technical and economic needs but, mostly, due to their social implications. (author). 10 refs., 11 figs.

  14. La valutazione dei costi: uno studio applicato all’unità operativa di diagnostica per immagini

    Directory of Open Access Journals (Sweden)

    Salvatore Nieddu

    2001-06-01

    Full Text Available The aim of the analysis was to evaluate the reasons that caused the poor economic results and performances of a Radiology Department located in a public hospital. The models of Decision Support System were utilized in order to conduct the studies. These models represent clearly a current economic situation and allow simulations in order to estimate in a preventive way the economic results of different alternative actions. The economic analysis was conducted according to the extended direct costing method utilizing a single performance (product as a calculation unit. The simulations were carried out in accordance to the “price-cost-volume analysis” method that identifies the break even point for the families of products. These analysis resulted in a significant improvement of the awareness relative to the economic actions of the operative managerial decisions: the main factor in the process of the decision making for the public healthcare structure is to respond to the needs of the potential users and therefore to satisfy the demand, the increase of which is immediately signalised by the lengthening of the awaiting list. For the structure which is incorporated in the hospital frame there is the necessity to provide the service towards inside the hospital both relative to the patients and to the performances of first aid supported by the emergency department. It is important to stress that, even if limited or conditional, there is a space for improvement: the first step in this direction is to analyse in order to recognize and to measure, if not able to improve that what is unknown and not measured before.

  15. Diagnostic imaging of skeletal metastases; Diagnostica per immagini delle metastasi scheletriche

    Energy Technology Data Exchange (ETDEWEB)

    Scutellari, P. N.; Addonisio, G.; Righi, R. [Ferrara Univ., Ferrara (Italy). Dipt. di Scienze Chirurgiche, Anestesiologiche e Radiologiche, Sez. di Diagnostica e Terapia Radiologiche; Giganti, M. [Ferrara Univ., Ferrara (Italy). Dipt. di Medicina Clinica e Sperimentale, Sez. di Medicina Nucleare

    2000-12-01

    Purpose of this article is to present an algorithm for detection and diagnosis of skeletal metastases, which may be applied differently in symptomatic and asymptomatic cancer patients. February to March 1999 it was randomly selected and retrospectively reviewed the clinical charts of 100 cancer patients (70 women and 30 men; mean age: 63 years, range: 55-87). All the patients had been staged according to TNM criteria and had undergone conventional radiography and bone scan; when findings were equivocal, CT and MRI had been performed too. The primary lesions responsible for bone metastases were sited in the: breast (51 cases), colon (30 cases: 17 men and 13 women), lung (7 cases: 6 men and 1 woman), stomach (4 cases: 2 men and 2 women), skin (4 cases: 3 men and 1 woman), kidney (2 men), pleura (1 woman), and finally liver (1 man). The most frequent radiographic pattern was the lytic type (52%), followed by osteosclerotic, mixed, lytic vs mixed and osteosclerotic vs lytic patterns. The patients were divided into two groups: group A patients were asymptomatic and group B patients had local symptoms and/or pain. Skeletal metastases are the most common malignant bone tumors: the spine and the pelvis are the most frequent sites of metastasis, because of the presence of high amounts of red (hematopoietic active) bone marrow. Pain is the main symptom, even though many bone metastases are asymptomatic. Pathological fractures are the most severe consequences. With the algorithm for detection and diagnosis of skeletal metastases two different diagnostic courses are available for asymptomatic and symptomatic patients. Bone scintigraphy remains the technique of choice in asymptomatic patients in whom skeletal metastases are suspected. However this technique, though very sensitive, is poorly specific, and thus a negative bone scan finding is double-checked with another physical examination: if the findings remain negative, the diagnostic workup is over. On the contrary, in patients with a positive bone scan or with local symptoms and pain, radiography and CT are used for screening of metastatic lesions: results may be negative (for low sensitivity of conventional radiology) or questionable (in which case bone biopsy is necessary), or else symptoms may be due to different causes than metastatic lesions (i.e., osteoarthritis). Before bone biopsy is made, MRI must be performed, because it is the only technique that allows to distinguish between bone marrow components. The limitation of MRI is the poor specificity of its findings, which may provide misleading findings. [Italian] L'articolo propone un algoritmo procedurale diagnostico, applicabile in maniuera differenziata a pazienti oncologici asintomatici e sintomatici per metastasi scheletriche. Nel periodo febbraio-maggio 1999 sono state esaminate 100 cartelle cliniche di pazienti oncologici (70 femmine e 30 maschi, con eta' variabile da 55 a 87 anni; media: 63), scelti con criterio di casualita', stadiati secondo il sistema TNM. In tutti i pazienti erano stati eseguiti l'esame erano stati eseguiti l'esame radiografico e la scintigrafia ossea; di fronte a diagnosi non conclusive sono state eseguite la TC o la RM. I tumori primitivi responsabili delle metastasi allo scheletro sono stati: mammella (51 casi), colon (30 casi: 17 maschi e 13 femmine), polmone (7 casi: 6 maschi e una femmina), rene (2 casi, maschi), pleura (un caso, femmina) e fegato (un caso, maschio). L'aspetto radiografico e' stato prevalentemente di tipo osteolitico (52%); altri quadri radiografici rilevati sono stati: le forme addensante, mista, osteolitiche con evoluzione mista ed eburnee cone voluzione osteolitica. Le metastasi scheletriche rappresentano la maggior parte dei tumori maligni dell'osso. La colonna vertebrale e la pelvi sono le sedi piu' colpite. Il sintomo principale e il dolore, con o senza frattura. Tuttavia molte metastasi sono asintomatiche. Per la realizzazione di un algoritmo diagnostico preciso, la popolazione studiata e' stata suddivisa in due categorie: pazienti asintomatici e pazienti con sintomi locali e/o dolore. Cio' ha comportato variazioni del protocollo diagnostico. Infatti la scintigrafia ossea e' l'esame di prima scelta nei pazienti asintomatici, nei quali si suppone fondatamente la presenza di metastasi scheletriche. Tuttavia la scintigrafia e' poco specifica. Di fronte alla risposta negativa i pazienti dovranno essere rivalutati: se la clinica permane negativa, l'iter diagnostico puo' fermarsi. Al contrario, nei pazienti con scintigrafia positiva o in quelli con sintomi locali e/o dolore l'esame successivo e' radiologico (radiografia e TC): il risultato puo' essere negativo (per la sensibilita' decisamente bassa della radiografia), dubbio (in questo caso e' necessaria la biopsia ossea) oppure la causa della sintomatologia non e' da riferirsi a lesioni secondarie (per esempio, artrosi e altre malattie degnerative). (abstract truncated)

  16. LA TUBERCULOSIS EN EL NIÑO, ¿CÓMO SE DIAGNOSTICA?

    Directory of Open Access Journals (Sweden)

    Dra. María Elena Guarda

    2017-01-01

    Full Text Available La tuberculosis sigue siendo una epidemia mundial. En Chile en los últimos años se ha mantenido la tasa de enfermos con tuberculosis. En niños el diagnóstico es un desafio, ya que los elementos considerados como gold estándar como la baciloscopía y cultivos suelen ser falsos negativos. La prueba de tuberculina (PPD e IGRAS son pruebas complementarias con una sensibilidad y especificidad variable. La imágenes son un elemento fundamental en el contexto de un paciente sospechoso. En esta revisión se abarca la epidemiología, proceso diagnóstico (historia clínica, metodos diagnósticos, tratamiento y prevención en el niño.

  17. Environmental control of the wastes disposal of Abadia de Goias, Brazil; Controle ambiental do repositorio de rejeitos de Abadia de Goias

    Energy Technology Data Exchange (ETDEWEB)

    Magalhaes, Maisa H.; Acar, Maria Elizabeth E.D.; Lauria, Dejanira C. [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil)

    2002-07-01

    In May 1997 the building of the Abadia de Goias disposal site was concluded. This waste disposal site was built to store the waste from Goiania cesium accident, which at the end of the city decontamination process amounted 3,500 m{sup 3} radioactive wastes, being 6,000 tons of solid waste. Since 1988 a radiological monitoring program has been performed at the site with the objective of assessing the site environmental impact. The site operator carries out measurements of the gamma exposure rate and {sup 137} Cs in different kind of samples (surface water, groundwater, soil, sediment, grass and milk). In order to assess the performance of the monitoring program, the Comissao Nacional de Energia Nuclear (CNEN), through the Departamento de Protecao Radiologica Ambiental (DEPRA/IRD), maintains a monitoring control program at the site. With the purpose of verifying the quality of the data supplied by the operator, some requirements have to be fulfilled by the site operator. This article presents the methodology adopted by the regulatory agency to control the monitoring program of the Abadia de Goias disposal site and discusses the results of the monitoring control program. (author)

  18. Device for measuring the exposure time in dental X-ray - Cronox

    International Nuclear Information System (INIS)

    Menezes, Claudio J.M.; Santos, Luiz A.P. dos

    2009-01-01

    The Centro Regional de Ciencias Nucleares do Nordeste (CRCN-NE) developed a test device for monitoring the X-ray beam in dental equipment to its application in quality control programs. This device, called Odontologic Dosimetric Card (CDO of Cartao Dosimetrico Odontologico in Portuguese) uses thermoluminescent dosimeters (TLD) for the measurement of some parameters of the X-ray beam as the entrance surface dose, the peak tension and half value layer (HVL). Radiographic films record the size of the radiation field. However, the TLD does not allow the assessment of exposure time, a parameter that complements the requirements of the Diretrizes de Protecao Radiologica em Radiodiagnostico Medico e Odontologico of Department of Health in Brazil for such equipment. Thus was developed a system based on sensitivity to ionizing radiation of phototransistors for measurement of exposure time when a patient is put in a clinical dental radiography. The system, called CRONOX was sized to be inserted within the CDO. The results showed that the measuring error had developed for less than 3% when compared to reference values obtained with the Tektronix digital oscilloscope, TDS2022 model. The readings obtained with the CRONOX were also compared with the nominal values selected in the X-ray equipment and with the values measured with the instrument of trade PTW Diavolt Universal. The results showed that the measuring device developed showed a maximum deviation of 5.92% on the nominal value selected, while for the instrument of PTW was 17.86%. (author)

  19. Nuclear energy for environmental protection; A energia nuclear para protecao do meio ambiente

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Jair Albo Marques de

    1993-12-31

    In 1990 nuclear energy supplied about 17% of the total electric power produced in the world, what makes it the third most used power source after coal and hydropower. In this paper the advantages of using nuclear power for generating large quantities of electric power are presented 18 figs., 23 tabs.

  20. Evaluation of protection measurements for rural environments; Avaliacao de medidas de protecao para ambientes rurais

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Diogo N.G.; Silva, Fernanda L.; Conti, Luiz F., E-mail: dneves@ird.gov.b, E-mail: lfcconti@ird.gov.b, E-mail: fleite@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Wasserman, Maria Angelica V., E-mail: maria.wasserman@pq.cnpq.b [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Rochedo, Elaine R.R., E-mail: erochedo@cnen.gov.b [Comissao Nacional de Energia Nuclear (CODIN/CNEN), Rio de Janeiro, RJ (Brazil). Coord. de Instalacoes Nucleares

    2011-10-26

    Among the planning activities of actuation in nuclear/radiological emergences, it is included the efficiency evaluation of protection and remediation measurements. From the development of a data base on such measurements for the agricultural areas, the program SIEM was used for effectuation the simulations involving the {sup 137}Cs, {sup 131}I and {sup 90}Sr radionuclides, in scenery previously established for simulation those areas of a 50 km surrounding the Admiral Alvaro Alberto nuclear power plant. The obtained results indicate that the scenery is determinant of efficiency measurements involving various specific factors of each place, such as: agricultural and cattle breeding products, consumption habits of population and the grade of subsistence by the diet items, making not practical the elaboration of predefined generic sceneries. The great dependence on seasoning related to the moment of accident makes inadequate any previous evaluation what soever for evaluation of efficiency of protection and remediation measurements. Therefore, previous decisions are not recommended about the relevance of protection measurements for rural areas. Two classification criteria were defined: (i) the efficiency in reduction the doses in the firs year; and, (i i) efficiency in reduction the dose at long term

  1. Drilling in areas subject to environmental protection; A perfuracao em area de protecao ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Mendonca, Ricardo Teixeira; Guimaraes, Antimio Santos [PETROBRAS, XX (Brazil). Distrito de Perfuracao do Nordeste. Div. Tecnica; Santana, Manoel Messias de [PETROBRAS, XX (Brazil). Regiao de Producao do Nordeste. Setor de Seguranca Industrial

    1990-12-31

    This paper presents the practices developed for pollution control in areas subject to environmental protection. This well drilling operation was carried out in the Municipality of Marechal Deodoro, in the State of Alagoas, in locality named Massagueira. We stress the preventive methods for liquid and solid effluent generation and the use of Closed Fluid System or Anti-Dike System. (author) 3 figs.

  2. Nuclear energy for environmental protection; A energia nuclear para protecao do meio ambiente

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Jair Albo Marques de

    1992-12-31

    In 1990 nuclear energy supplied about 17% of the total electric power produced in the world, what makes it the third most used power source after coal and hydropower. In this paper the advantages of using nuclear power for generating large quantities of electric power are presented 18 figs., 23 tabs.

  3. Evaluation of protection measurements for urban environments; Avaliacao de medidas de protecao para ambientes urbanos

    Energy Technology Data Exchange (ETDEWEB)

    Rochedo, Elaine R.R., E-mail: erochedo@cnen.gov.b [Comissao Nacional de Energia Nuclear (CODIN/CNEN), Rio de Janeiro, RJ (Brazil). Coord. de Instalacoes Nucleares; Silva, Diogo N.G.; Nascimento, Udilma; Conti, Luiz F., E-mail: dneves@ird.gov.b, E-mail: lfcconti@ird.gov.b, E-mail: udilma@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Wasserman, Maria Angelica V., E-mail: maria.wasserman@pq.cnpq.b [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2011-10-26

    Radioactive accidents has shown the necessity of a previous evaluation planning of exposure and directives for implementation of protection measurements. The description or measurements in the literature usually is associated to reduction of concentrations in the medium where they are applied. For verification the efficiency in dose reduction, it is necessary to proceed simulations. Through the development of data base on protection measurements, it was established basic sceneries, typically tropical as far the building type is concerned and the construction material. The program SIEM was used for simulation of contamination with {sup 137}Cs. The results indicates that generic solutions persuade not to and the decision make processes should be effectuated according to the real conditions of contamination and the use of affected area. For affected areas, two classification criteria were defined: (1) efficiency in reducing the dose in the first year; and (2) efficiency in dose reducing at long term

  4. Schemes for protecting electric power systems; Esquemas de protecao de sistemas de energia eletrica

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, Paulo Cesar de

    2002-07-01

    The objective of this dissertation is to accomplish an introduction to the studies and the applications of the System Protection Schemes (SPS) used to maintain the electric power systems safety. A small group of definitions and concepts from the 'protection, reliability and power systems performance analysis' areas is presented with the objective of distinguishing SPS from the conventional system component protections. It also helps in understanding the functions of the SPS with more clarity. The SPS are used to maintain the integrity of the system when it is submitted to phenomena that provoke instability or cascade circuit outages. The classification and the description of these phenomena, as well as the SPS application are shown in this dissertation. The general structure of the SPS, the ways of classifying them and the different actions used by SPS to control the disturbances are the objectives of the analysis of this work. In order to exemplify, a vision is given of how the SPS are located in the Brazilian interconnected system (BIS) and also in the rest of the world. Some SPS used in Brazil deserved special attention. The analyses of the main blackouts that occurred in Brazil and in North America are presented, in a summarized term, in appendix I. Considerable knowledge is obtained from these analyses, leading to implementation measures that minimize the risk of interruptions in the energy supply. A comparison is also made of the degree of severity of the great blackouts that happened in Brazil and, for the two largest, an estimate of their respective interruption costs is made. In appendix II, an attempt was also made to establish the basic requirements for the SPS implementation using micro processing technology. Based on the experience lived during the studies developed by the group that analyzed the safety of the Bis after the blackout on March 11/1999, criteria and procedures to analyze the safety of the system and to accomplish studies of SPS implantation were established. Finally, a brief study of the BIS is done, where the SPS performances are analyzed to verify the ability to control serious emergencies that can happen in the present moment. (author)

  5. Protection system for high impedance faults; Sistema de protecao para faltas de alta impedancia

    Energy Technology Data Exchange (ETDEWEB)

    Malagodi, Caius Vinicius Sampaio

    1997-07-01

    This paper proposes a protection system against high impedance faults based on the voltage unbalance along the feeder. The main focus is on the sensor developed together with Sao Paulo state utilities through the CED - Center of Excellence in Distribution, to detect this kind of fault. These simulations show the voltage unbalance that allows to safely determine the conductor breakdown, taking into consideration the distribution transformers and the way they are connected to the line. A zero consequence prototype sensor that has as its greatest advantage the coupling with the distribution line through the electric field, is also presented. Sensibility settings and timings delay are included to allow the coordination between the sensors and other feeder protections.When a fault occurs, only the downstream sensors work. In order to have the information of the sensor situation reaching an upstream fault protection device, a way of communication is needed. Distribution lines with supervision and control system already have this advantage, allowing for the function of protection against faults and high impedance to be aggregated to this communication system. For distribution lines that do not have this kind of system, a more detailed study on the carrier signals as a means of communication should be carried out. (author)

  6. Algorithms evaluation for transformers differential protection; Avaliacao de algoritmos para protecao diferencial de transformadores

    Energy Technology Data Exchange (ETDEWEB)

    Piovesan, Luis Sergio

    1997-07-01

    The appliance of two algorithms is evaluated, one based in Fourier analysis and other based in a rectangular transform technique over Fourier analysis, to be used in digital logical circuits (digital protection relays) for the purpose of differential protection of power transformers (ANSI 87T). The first chapter has a brief introduction about electrical protection. The second chapter discusses the general problems of transform protection, the development of digital technology and, with more detail, the differential protection associated to this technology. In this chapter are presented the particular aspects of transformers differential protection concerning sensibility, inrush current situations and harmonic distortions caused by transformer core saturations and the differential protection algorithms and their applications in a specific relay design. In chapter three, a method to make possible testing the protection performance is developed. This work applies digital simulations using EMTP to generate current signal of transformer operation and fault conditions. Digital simulation using Matlab is used to simulate the protection. The EMTP generated field signals are sent to the relay under test, furnishing data of normal operation, internal and external faults. The relay logic simulator at Matlab will work this data and so, it will be possible to verify and evaluate the algorithm behavior and performance. Chapter 4 shows the protection operation over simulations of several of transformer operation and fault conditions. The last chapter presents a conclusion about the protection performance, discussions about all the methods applied in this work and suggestions for further studies. (author)

  7. New method for protection of parallel generator; Novo metodo para protecao do gerador em paralelismo

    Energy Technology Data Exchange (ETDEWEB)

    Silva, M R.C. da [Elfa-Seg Eletronica Ltda. (Brazil)

    1988-07-01

    The protection of synchronous machinery, especially generators working in parallel with the pertaining electric power utility have been extensively discussed specially because of the growing importance of co-generation in Brazil. This work discusses existing efficient methods and suggests new ways of proceeding this protection. 8 refs., 2 figs.

  8. Radiologic evaluation of facial injury; Avaliacao radiologica dos traumatismos faciais

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Ricardo Pires de; Volpato, Richard [Complexo Hospitalar Heliopolis, Sao Paulo, SP (Brazil). Servico de Diagnostico por Imagem]. E-mail: richard_volpato@uol.com.br; Nascimento, Lia Paula [Complexo Hospitalar Heliopolis, Sao Paulo, SP (Brazil)

    2003-03-01

    A detailed radiological investigation of the maxillofacial injuries is essential to achieve good treatment results. The images should identify every lesion and guide the treatment, thus improving esthetic and functional results. With the aim of simplifying the diagnostic task, the face may be seen as a five regions structure that may suffer a regional fracture or combined fractures involving the adjacent regions. These regions represent areas of focus for pre surgical planning and are as follows: nasal, orbital, zygomatic, maxillary, and mandibular. In order to understand the injury mechanisms and their consequences it is useful to know the supporting buttresses, which are divided in five sagittal planes, three horizontal planes and two coronal planes. We reviewed the cases of patients with facial trauma treated at Complexo Hospitalar Heliopolis, Sao Paulo, Brazil. A review of the relevant issues concerning radiological investigation of these injuries is presented. This study allowed standardization and ordering of the radiological investigation in patients with facial trauma. (author)

  9. Radiological monitoring in borders; Vigilancia radiologica en fronteras

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Garcia, I.

    2008-07-01

    Traditionally customs fulfilled a mission of collecting taxes levied for different purposes, one of which was to protect national industries. In recent years, and considering the changes that have occurred in international security, the security of the transport chain as the mainstay of trade and the need to control weapons of mass destruction have been identified as specific goals, and at the same time the need to control illegal trafficking to reduce the drug trade and contraband of counterfeit products has intensified. (Author)

  10. The male breast: radiological abnormalities; Anormalidades radiologicas da mama masculina

    Energy Technology Data Exchange (ETDEWEB)

    Maranhao, Norma; Costa, Isis; Nascimento, Raquel Cristine Gomes do [Clinica Radiologica Lucilo Maranhao, Recife, PE (Brazil)

    1998-01-01

    Mammography of male breast account for less than 1% of mammographic examinations in most breast services. Due to the low incidence of breast cancer in men the significant majority of mammographic diagnosis reveals benign diseases, mostly gynecomastia. Therefore it is most important to identify features of benign conditions, such as gynecomastia, in order to reduce the number of unnecessary surgical biopsies performed in these patients, for the same reason suspicious lesions must be recognized as well. Indications for mammography in men include evaluation of palpable mass, recent onset of breast nipple-areolar skin changes or papillary discharge, and previous history of cancer. (author) 10 refs., 12 figs.

  11. Laboratory of environmental radiological surveillance; Laboratorio de vigilancia radiologica ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Mendez G, A.; Marcial M, F.; Giber F, J.; Montiel R, E.; Leon del V, E.; Rivas C, I.; Leon G, M.V.; Lagunas G, E.; Aragon S, R.; Juarez N, A.; Alfaro L, M.M

    1991-12-15

    The department of radiological protection of the ININ requests the collaboration of the Engineering Unit for the elaboration of the work project of the laboratory of environmental radiological surveillance. The emission of radioactive substances to the atmosphere like consequence of the normal operation of the Nuclear Center, constitutes an exhibition source from the man to the radiations that it should be appropriately watched over and controlled to be able to determine the population's potential exhibition that it lives in the area of influence of the installation. (Author)

  12. External plans for radiological emergency; Plan de emergencia radiologica externo

    Energy Technology Data Exchange (ETDEWEB)

    Suarez, G; Vizuet G, J; Benitez S, J A [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1999-07-01

    Since 1989, the National Institute of Nuclear Research in Mexico shares in the task of Food and Water Control corresponding to the FT-86 task force of External Plans for Radiological Emergency (PERE), in charge of the Veracruz Health Services. In the PERE preparation stage previous actions are necessary developed for the preparation and updating of this plan and the task organization with the purpose to maintaining standing and operable in any time and circumstance, the capability to response in the face of an emergency. This stage englobes activities which must be realized before to carry out the Plan as they are the specialized training of personnel which participates and the execution of exercises and simulacrums. Until 1998, training and exercises for this task had been realized under diverse possible sceneries but in conditions that simulated the presence of radioactive material. For this reason, it should be emphasized the training realized during the days 6th, 7th, 8th July, 1999, in the emergency planning zone of the Plan, which to carry out using radioactive material. The National Institute of Nuclear Research had in charge of the training. This work describes all the activities for the realization of this training. (Author)

  13. Laboratory of environmental radiological surveillance; Laboratorio de vigilancia radiologica ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Mendez G, A; Marcial M, F; Giber F, J; Montiel R, E; Leon del V, E; Rivas C, I; Leon G, M V; Lagunas G, E; Aragon S, R; Juarez N, A; Alfaro L, M M

    1991-12-15

    The department of radiological protection of the ININ requests the collaboration of the Engineering Unit for the elaboration of the work project of the laboratory of environmental radiological surveillance. The emission of radioactive substances to the atmosphere like consequence of the normal operation of the Nuclear Center, constitutes an exhibition source from the man to the radiations that it should be appropriately watched over and controlled to be able to determine the population's potential exhibition that it lives in the area of influence of the installation. (Author)

  14. Training in radiological protection; Capacitacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Medina G, E., E-mail: medina@ipen.gob.pe [Instituto Peruano de Energia Nuclear, Av. Canada 1470, San Borja, Lima 41 (Peru)

    2014-08-15

    In the Peru, according to the current regulations, people that work with ionizing radiations should have an authorization (individual license), which is granted by the Technical Office of the National Authority that is the technical body of the Instituto Peruano de Energia Nuclear (IPEN) manager of the control of ionizing radiations in the country. The individual license is obtained after the applicant fulfills the requested requirements, as having safety knowledge and radiological protection. Since its founding in 1972, the Centro Superior de Estudios Nucleares (CSEN) of the IPEN has carried out diverse training courses in order to that people can work in a safe way with ionizing radiations in medicine, industry and research, until the year 2013 have been organized 2231 courses that have allowed the training of 26213 people. The courses are organized according to the specific work that is carried out with radiations (medical radio-diagnostic, dental radiology, nuclear medicine, radiotherapy, industrial radiography, nuclear meters, logging while drilling, etc.). In their majority the courses are directed to people that will make use of radiations for first time, but refresher courses are also granted in the topic. The CSEN also carries out the Master degree programs highlighting the Second Professional Specialization in Radiological Protection carried out from the year 2004 with the support of the National University of Engineering. To the present has been carried out 2 programs and there is other being developed. In this work is shown the historical evolution of the radiological protection courses as well as the important thing that they are to work in a safe way in the country. (Author)

  15. Evaluation of a quality control program in radiodiagnosis; Radiologia diagnostica e programa de garantia de qualidade: avaliacao critica

    Energy Technology Data Exchange (ETDEWEB)

    Yacovenco, Alejandro; Infantosi, A.F.C. [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Programa de Engenharia Biomedica; Lira, S.H. [Hospital Central da Policia Militar do Estado do Rio de Janeiro, RJ (Brazil); Tauhata, L. [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil). Supervisao de Metrologia das Radiacoes Ionizantes

    1996-12-31

    A quality assurance program, implemented at the Radiologic Service of the Hospital of the Military Police in Rio de Janeiro, Brazil, is evaluated. The results show a reduction around of 70% in the number of rejected films and 75% in the costs. A return to the former conditions is reported as after the discontinuation of the program 2 refs., 2 figs.

  16. Diagnostic and therapeutic perspectives in nuclear medicine: radiolabelled biomolecules; Perspectivas diagnosticas y terapeuticas en medicina nuclear: biomoleculas radiomarcadas

    Energy Technology Data Exchange (ETDEWEB)

    Ferro F, G. [Gerencia de Aplicaciones Nucleares en la Salud. ININ, 11801 Mexico D.F. (Mexico); Murphy, C.A. de; Pedraza L, M. [Departamento de Medicina Nuclear. Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico D.F. (Mexico); Melendez A, L. [Facultad de Medicina, UAEM, 50000 Toluca, Estado de Mexico (Mexico)

    2003-07-01

    From their beginning, the radiopharmaceuticals chemistry has gone to the study of the molecular chemistry. The radiopharmaceuticals are only in their capacity to detect such specific biochemical places as the receivers and the enzymes. With the recent obtaining of the complete structural sequence of the genome, it doesn't fit doubt of the importance that they have acquired the molecular images for the study from the genetic information to the alterations phenotypic in the chemistry of the human body. So, the future of the diagnostic and therapeutic nuclear medicine, practically is based in the study of protein fragments, peptide structures and chains of DNA radiolabelled for the study of the metabolism In vivo. These investigations represent a substantial change in those paradigms of the pharmaceutical development, when using the own organic capacities as source of medications, instead of considering to the organism like a simple assay tube where molecules act, like they are most of the traditional medications. The investigation of new techniques to design complex stable of Tc-99m, Re-188, Lu-177, Y-90 and Dy-166/Ho-l66 with biomolecules that don't alter the specificity and in general the molecular properties of the same ones. it is a topic of world interest in the environment of the radiopharmaceutical chemistry. In this work some achievements and perspectives are presented on those main diagnostic and therapeutic radiopharmaceuticals of third generation. (Author)

  17. Technical recommendations for bilateral comparison in diagnosis radiology: part 1; Protocolo tecnico da comparacao bilateral em radiologia diagnostica: parte 1

    Energy Technology Data Exchange (ETDEWEB)

    Peixoto, J.G.P., E-mail: guilherm@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Almeida, C.E.V. de [Universidade do Estado do Rio de Janeiro (LCR/IBRAG/UERJ), Rio de Janeiro, RJ (Brazil). Lab. de Ciencias Radiologicas

    2015-07-01

    By data from www.datasus.gov.br, then need each diagnostic quality dissemination should be periodically verify, therefore the bilateral comparison between calibration laboratory will be mandatory to quality services guarantee. (author)

  18. Technical recommendations for bilateral comparison in diagnosis radiology: part 3; Protocolo tecnico da comparacao bilateral em radiologia diagnostica: parte 3

    Energy Technology Data Exchange (ETDEWEB)

    Peixoto, J.G.P., E-mail: guilherm@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Almeida, C.E.V. de [Universidade do Estado do Rio de Janeiro (LCR/IBRAG/UERJ), Rio de Janeiro, RJ (Brazil). Lab. de Ciencias Radiologicas

    2015-07-01

    Uncertainty and results homogeneity need to following the technical procedure to bilateral comparison, then we select the equipment used, reference conditions and the data file to be used for all participant laboratory. The partial results will be presentation at metrology and medical physics congress. (author)

  19. Technical recommendations for bilateral comparison in diagnosis radiology: part 2; Protocolo tecnico da comparacao bilateral em radiologia diagnostica: parte 2

    Energy Technology Data Exchange (ETDEWEB)

    Peixoto, J.G.P., E-mail: guilherm@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Almeida, C.E.V. de [Universidade do Estado do Rio de Janeiro (LCR/IBRAG/UERJ), Rio de Janeiro, RJ (Brazil). Lab. de Ciencias Radiologicas

    2015-07-01

    The conventional radiology (≈70%), mammography(≈4%) and Computer Tomography (≈2%) will be in charge of this bilateral comparison. We could found the users ionization chambers, reference and radiations conditions, agenda and the comparison budget. The partial results will be presentation at metrology and medical physics congress. (author)

  20. Diagnostic and therapeutic perspectives in nuclear medicine: radiolabelled biomolecules; Perspectivas diagnosticas y terapeuticas en medicina nuclear: biomoleculas radiomarcadas

    Energy Technology Data Exchange (ETDEWEB)

    Ferro F, G [Gerencia de Aplicaciones Nucleares en la Salud. ININ, 11801 Mexico D.F. (Mexico); Murphy, C.A. de; Pedraza L, M [Departamento de Medicina Nuclear. Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico D.F. (Mexico); Melendez A, L [Facultad de Medicina, UAEM, 50000 Toluca, Estado de Mexico (Mexico)

    2003-07-01

    From their beginning, the radiopharmaceuticals chemistry has gone to the study of the molecular chemistry. The radiopharmaceuticals are only in their capacity to detect such specific biochemical places as the receivers and the enzymes. With the recent obtaining of the complete structural sequence of the genome, it doesn't fit doubt of the importance that they have acquired the molecular images for the study from the genetic information to the alterations phenotypic in the chemistry of the human body. So, the future of the diagnostic and therapeutic nuclear medicine, practically is based in the study of protein fragments, peptide structures and chains of DNA radiolabelled for the study of the metabolism In vivo. These investigations represent a substantial change in those paradigms of the pharmaceutical development, when using the own organic capacities as source of medications, instead of considering to the organism like a simple assay tube where molecules act, like they are most of the traditional medications. The investigation of new techniques to design complex stable of Tc-99m, Re-188, Lu-177, Y-90 and Dy-166/Ho-l66 with biomolecules that don't alter the specificity and in general the molecular properties of the same ones. it is a topic of world interest in the environment of the radiopharmaceutical chemistry. In this work some achievements and perspectives are presented on those main diagnostic and therapeutic radiopharmaceuticals of third generation. (Author)

  1. Palmas de Colombia: clave diagnostica de los géneros y nómina de las especies conocidas

    Directory of Open Access Journals (Sweden)

    Dugand Armando

    1940-12-01

    Full Text Available Después del Brasil, Colombia posee mayor número de palmas que cualquiera otro país del globo.  Débese la razón de esta primacía a la favorable situación geográfica de nuestro territorio, en cuyo ámbito concurren condiciones fitoecológicas muy variadas: por el sur y por el suroeste Colombia ocupa una porción muy amplia de la inmensa Hylæa amazónica*, verdadero Edén del reino vegetal, como llamó a esta región el botánico Kerchove de Denterghem; por el noroeste, las selvas húmedas del Darién, del Atrato y del Chocó son la continuación en este continente de las ricas asociaciones vegetales centro-americanas; hacia el nordeste, las fronteras de nuestro país atraviesan una parte considerable de las grandes selvas vírgenes que cubren la región meridional de la cuenca de Maracaibo y que penetran a Colombia por el Catatumbo, en tanto que por los lados del occidente y del suroeste toda la Costa del Pacifico, desde el Chocó hasta el Ecuador, esta vestida de magnas florestas primitivas sujetas a uno de los regímenes pluviales más abundantes de la tierra.

  2. 25 years of monitoring the Waste Management Center of the Almirante Alvaro Alberto Nuclear Power Station

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, O.C; Barboza, E.; Cardoso, S.N.M., E-mail: landocf@eletronuclear.gov.br, E-mail: barboza@eletronuclear.gov.br, E-mail: sergion@eletronuclear.gov.br [Eletrobras Eletronuclear S.A (ELETONUCLEAR), Paraty, RJ (Brazil). Lab. de Monitoracao Ambiental

    2013-07-01

    The goal of this paper is to present an assessment of 25 years of monitoring of the environment around the Waste Management Center (WMC) of the Almirante Alvaro Alberto Nuclear Power Station (AAANPS) since 1986 until 2011. The Environmental Monitoring Laboratory (EML) has, for purposes, to monitor the environment around the station to verify if there's a potential impact caused by the operation of the two units and to verify the dose rate levels around the waste deposits. The WMC is located in an area belonging to the AAANPS and receive solid waste of low and medium activities from Angra 1 NPP. The waste generated from Angra 2 NPP is stored inside the unit. The EML monitors the environment around the WMC to determine the environmental dose rate. The monitoring is made by direct measurement of the radiation using thermoluminescent dosimeters (TLD). Nowadays, the TLD are installed, at this time, in 6 points at the boundaries of WMC and are changed monthly. The locations of these points were already changed several times to allow the construction of new buildings. The constitution of the TLD are 4 crystals, being 3 crystals of Calcium Sulphate doped with Thulium (CaSO{sub 4}:Tm) with 3 shields and 1 crystal of Lithium Borate doped with Copper (Li{sub 2}B{sub 4}O{sub 7}:Cu) without shield. The results of the TLD measurements are normalized to a period of 30 days to compensate accidental statistical variations of the dose rates. The results, in these 25 years, show that the external area of the WMC is a supervised area, following the Norm CNEN-NN-3.01 - 'Diretrizes Basicas de Protecao Radiologica' - with access permitted only for authorized people. (author)

  3. Determination of contamination operational value by routine monitoring in research laboratories

    International Nuclear Information System (INIS)

    Salomao, Edeilson; Medeiros, Regina Bitelli; Mattos, Maria Fernanda S.S.; Daros, Kellen Adriana Curci

    2008-01-01

    The radioisotopes have a large spectrum of applicability in many areas of science, as in medicine, agriculture and industry in general. In the biological area, the radioisotopes have brought many benefits to study physiological processes in living organisms and in vitro. The most radioisotopes used in biological research are emitters of radiation of low energy, mainly β, and are used as unsealed sources. The manipulation of these radioisotopes generates radioactive wastes and eventually can cause contamination in the areas of handling or even occasionally in areas to which access is not controlled. According to CNEN-NE-3.02 standard is necessary and mandatory the exposure and contamination levels control in the areas of handling of unsealed sources. The goal of the work is to establish how often the monitoring should be done through the survey of the contamination and exposure levels, in areas designed to manipulate 32 P and how this monitoring can contribute to the improvement the conditions of radiological protection. From the twenty eight research laboratories registered by 'Nucleo de Protecao Radiologica' (NPR) were selected four where the activities are not restrict to 32 P biological assays. The levels of contamination and exposure were evaluated using monitors GM and the layout of laboratories containing the points to be tracker defined based on the researchers' routine. At each point three values were obtained to measure the rate of contamination on the surface and exposure rate. The measures were made twice a week before and after the radioisotope manipulation. Based on these data was possible to establish the range from 0,306 to 0,678 Bq.cm -2 as operational average level to the superficial contamination. The average exposure rate measured was 5.16 n C/Kg.h. The results were important to demonstrating to researchers how they can contribute to the improvement of radiological protection conditions. (author)

  4. 25 years of monitoring the Waste Management Center of the Almirante Alvaro Alberto Nuclear Power Station

    International Nuclear Information System (INIS)

    Ferreira, O.C; Barboza, E.; Cardoso, S.N.M.

    2013-01-01

    The goal of this paper is to present an assessment of 25 years of monitoring of the environment around the Waste Management Center (WMC) of the Almirante Alvaro Alberto Nuclear Power Station (AAANPS) since 1986 until 2011. The Environmental Monitoring Laboratory (EML) has, for purposes, to monitor the environment around the station to verify if there's a potential impact caused by the operation of the two units and to verify the dose rate levels around the waste deposits. The WMC is located in an area belonging to the AAANPS and receive solid waste of low and medium activities from Angra 1 NPP. The waste generated from Angra 2 NPP is stored inside the unit. The EML monitors the environment around the WMC to determine the environmental dose rate. The monitoring is made by direct measurement of the radiation using thermoluminescent dosimeters (TLD). Nowadays, the TLD are installed, at this time, in 6 points at the boundaries of WMC and are changed monthly. The locations of these points were already changed several times to allow the construction of new buildings. The constitution of the TLD are 4 crystals, being 3 crystals of Calcium Sulphate doped with Thulium (CaSO 4 :Tm) with 3 shields and 1 crystal of Lithium Borate doped with Copper (Li 2 B 4 O 7 :Cu) without shield. The results of the TLD measurements are normalized to a period of 30 days to compensate accidental statistical variations of the dose rates. The results, in these 25 years, show that the external area of the WMC is a supervised area, following the Norm CNEN-NN-3.01 - 'Diretrizes Basicas de Protecao Radiologica' - with access permitted only for authorized people. (author)

  5. Evaluation of the ocular protection for low intensity therapeutic lasers; Avaliacao da protecao ocular para lasers terapeuticos em baixa intensidade

    Energy Technology Data Exchange (ETDEWEB)

    Cordon, Rosely

    2003-07-01

    The low intensity laser therapy (LILT) has been extensively used in medicine and dentistry presenting positive effects. However, the laser radiation can also cause adverse effects. Due to the ocular focalization property, in the wavelength from 400 to 1400 nm, the retina is more susceptible to damage by radiation than any other part of the human body. Then, the ocular protection is frequently emphasized. This protection must attenuate the radiation to a safe level. The International Electrotechnical Commission (IEC) standard IEC 60825-1 suggests safety requirements for medical laser equipment, including the ocular protection, based on maximum permissible exposure levels. The Brazilian legislation adopts a corresponding IEC standard, the NBR IEC 601.2.22, for safety requirements. The aim of this study was to analyze the adequacy of the ocular protectors furnished by four laser equipment manufacturers, commercially available in Brazil, commonly used for LILT. For this purpose, the laser equipment and the respective ocular protectors were characterized. The adequacy was verified according to the IEC standards. It was found, among other results, ocular protectors attenuating to safe levels the radiation emitted by the respective laser equipment, however, presenting inadequate visual transmission. Inefficient protection and protection indicated in cases where they were not necessary were also observed. (author)

  6. L'Accuratezza diagnostica del bioscanner TRIMPROB: uno strumento non invasivo per la diagnosi delle lesioni pre-neoplastiche del colon: uno studio prospettico in doppio cieco

    OpenAIRE

    Tufano, Onofrio Marcello

    2014-01-01

    Aim: A new electromagnetic technology, aimed to the cancer diagnosis, as available in the last years literature, could be a promising non invasive method for detection of colon diseases including cancer . The encouraging published data, regarding specificity and sensitivity of the Nonlinear Resonance Interaction capabilities to analyze some peculiar electromagnetic properties of cancerous vs. normal tissues, related to various clinical trials on prostate, bladder, breast, thyroid, rectum canc...

  7. Synthesis and characterization of gold nanoparticles as diagnostic and therapeutic tool; Sintese e caracterizacao de nanoparticulas de ouro como ferramenta terapeutica e diagnostica

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Pryscila Rodrigues da

    2012-07-01

    Nanomedicine covers the use of nanoparticles to the targeted site of action as platforms for building imaging and therapeutic agents against cancer and other human diseases. In particular, gold nanoparticles (AuNp's) have proven to be efficient for the diagnosis and therapy. Interest in the development of AuNp's is due to their extraordinary physical and chemical properties resulting from the effect of its size in the nanoscale, to have an area of easy modification and the radioactive {gamma} and {beta} emitter ({sup 198}Au; E{gamma} = 0,411 MeV, {beta}{sub max} = 0,96 MeV; T{sub 1/2} = 2,69 days), having the advantage of being able to be applied as a diagnostic tool for molecular photon emission tomography (SPECT) using only a small amount of radioactive gold . In this study were synthesized AuNp's, whose surface is functionalized with a biocompatible polymer (modified polyethylene glycol) and folic acid in order to render them stealth and specific tumors that over express the folate receptors. The techniques of Dynamic Light Scattering (DLS), zeta potential ({zeta}), transmission electron microscopy (TEM) and UV-Visible absorption spectroscopy were employed to characterization of the size and geometry of the nanoparticles, in addition to confirming its binding to thiol -PEG and PEG-thiol Folate. The results of UV-Visible and TEM showed the formation of dispersed AuNp's ranging in size from 8-12 nm with a strong absorption around 520 nm, relating to a maximum of surface plasmon resonance. DLS results showed a hydrodynamic diameter of 10 and 14 nm. The (pH {approx} 5.0 to 6.0) ranged {zeta} potential values of the dispersions prepared between -16.2 and -42.1 mV, indicating stable colloidal suspensions. To determine the real concentration of gold in the samples, it was used neutron activation in the nuclear reactor TRIGA MARK I IPR-R1 CDTN / CNEN of Belo Horizonte. Biocompatibility studies in vitro and in vivo of the samples were carried out showing that they have low toxicity in the models used. We evaluated studies of the internalization of gold nanoparticles functionalized with thiol-PEG-folate-FITC in cells over expressing folate receptors. It was found that the nanoparticles are able to enter the cell, is distributed throughout the cytoplasm and nucleus. According to the results obtained, it can be concluded that it was produced gold nanoparticles dispersed stealth and specific for tumors that overexpression folate. (author)

  8. DIAGNOSTICA PER IMMAGINI DI UN CAPOLAVORO DI CARAVAGGIO IMMAGINI OLTRE IL VISIBILE PER IL SEPPELLIMENTO DI SANTA LUCIA PROVENIENTE DALLA CHIESA DI SANTA LUCIA AL SEPOLCRO DI SIRACUSA

    Directory of Open Access Journals (Sweden)

    Fernanda Prestileo

    2012-04-01

    Full Text Available

    Il 28 maggio 1606 Michelangelo Merisi fugge da Roma dove non fará mai piú ritorno; l’ultimo duello gli è costato la condanna a morte. Iniziano per lui gli anni della latitanza, anni che trascorrerá tra Napoli, Malta e la Sicilia. Nel suo passaggio in Sicilia, Caravaggio realizza dipinti di eccezionale qualitá, sicuramente tra i piú belli della sua breve e intensa esistenza. Nell’isola l’artista arriva nell’ottobre del 1608, dopo l’ennesima fuga, questa volta da Malta. La sua prima tappa siciliana è Siracusa, dove vive un artista suo amico: Mario Minniti. Da lui trova riparo e lavoro perché dipinge su commissione una grande tela per la chiesa di Santa Lucia al Sepolcro, Il Seppellimento di Santa Lucia, realizzata in un breve lasso di tempo, trasferendosi Caravaggio a Messina nel dicembre dello stesso anno.

     

    Diagnostic campaign on Caravaggio’s painting

    The Assessorato dei Beni Culturali e dell’Identità Siciliana, Diparti-mento dei Beni Culturali e  dell'Identitá Siciliana, Regione Siciliana (i nomi italiani tutti in corsivo has carried out a diagnostic cam-paign on the painting Il Seppellimento di Santa Lucia (oil on canvas, 1608 by Michelangelo Merisi da Caravaggio, in order to evaluate the state of conservation of the work of art before its return to Syracu-se, in the Church of S. Lucia al Sepolcro (the original placing from which the painting was removed at the end of the Seventies due to the unsuitable and unstable environment conditions of the exhibi-tion area, which inevitably led to its bad conservation conditions. The diagnostic campaign has been carried out in situ with portable instruments, for a one-month period, during the open exhibition in the Regional Gallery of Sicily of Palazzo Abatellis in Palermo, where the painting has temporarily been displayed in 2006. The investigations were aimed at having a deeper knowledge of the work of art with reference to its execution technique, to the original materials being employed and to any previous restoration work.The paper presents some results obtained from multi-spectral and radiological investigations.

  9. Influence of diagnostic quality scanning technique with CR mammography; Influencia de la tecnica de exploracion en la calidad diagnostica de la mamografia ocn CR

    Energy Technology Data Exchange (ETDEWEB)

    Rivas Ballarin, M. A.; Ruiz Manzano, P.; Ortega Pardina, P.; Laliena Bielsa, V.; Calvo Carrillo, S.; Garcia Romero, A.; Millan Cebrian, E.

    2013-07-01

    Image quality criteria laid down in the Spanish Protocol of Control of quality in Radiology (PECCR) to a team of mammography with CR imaging system are applied in this work and evaluated the dosimetry impact implied by the modification of the technique of exposure required for the fulfilment of those criteria. Is also analyzes the impact on the image quality of the new radiographic technique, evaluated by three radiologists. (Author)

  10. Blended learning specialists in radiation protection; Formacion semipresencial de especialistas en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Mayo, P.; Campayo, J. M.; Verdu, G.

    2011-07-01

    In this paper, we present a blended learning Radiation Protection Technician through an approved degree from the Polytechnic University of Valencia, which covers the knowledge and skills of functions relating to operators and supervisors in various areas and skilled workers to be to perform their work in technical units or Radiation Protection Radiation Protection Services. The benefits of this work are those related to achieving quality training flexible and adapted to follow the check off the person conducting the course, adapted to internal and external training of the applicant companies.

  11. Design an online course of radiological protection; Diseno de un curso en linea de proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Garcia S, R.; Del Sol F, S.; Rivera M, T.; Sanchez G, D., E-mail: rigarcias@ipn.mx [IPN, Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada, Av. Legaria No. 694, Col. Irrigacion, 11500 Mexico D. F. (Mexico)

    2015-10-15

    Currently there is a vast research about the harmful effects of the use of ionizing radiation in medical procedures and in recent years struck by the rapid innovation in imaging equipment, considerably increasing the radiation dose received both patients and professionals in the radiodiagnosis area, service having the greatest demand in our country. The main strategy that has so far is education, that is, to inform all those involved in managing ionizing radiation about the applications and risks associated with them. Generally it requires that all personnel occupationally exposed attesting a course of radiation protection. However, the high demand for this type of medical services and poorly trained staff, makes taking a classroom course for personnel occupationally exposed is complicated. So that in the Instituto Politecnico Nacional (IPN) we are designing a course in radiation protection to be implemented online, through the virtual platform Moodle in a first stage, and a massive open online course as the second stage so that can be carried by anyone interested in the subject, without having to appear in person. This will allows to reach the largest possible number of personnel occupationally exposed to just have a computer with internet access. (Author)

  12. Second level courses in radiation protection training; Cursos de segundo nivel de formacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Ribas, M.; Vanom, E.; Alonso, M.; Arranz, L.; Cordoba, D.; Ferrer, N.; Gomez, A.; Hernandez Armas, P.; Plallares, L.; Pombar, M. A.; Rubio, A.; Tellez de Cepeda, M.

    2011-07-01

    The aim of this paper is to present as being carried out the implementation of this standard in Spain by conducting specific courses, following the guide 116 of the Radiation Protection Commission, and the degree of acceptance of same among physicians who perform it.

  13. The regulation of the radiological protection in Mexico; La reglamentacion de la proteccion radiologica en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Eibenschutz H, J. [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Jose Ma. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico)

    2008-12-15

    The regulation antecedents in nuclear question in Mexico are placed in 1950, with the promulgation of {sup L}aw that declares national mining reserves the uranium deposits, thorium and the other substances of which obtains fissionable isotopes that can produce nuclear energy{sup ,} instrument that stipulated the control of uranium, thorium, as to its it indicated it name, and other fissionable substances, on the part of the state, although they were without a doubt the respective institutions, the National Commission of Nuclear Energy in 1955, and the one of the National Commission of Nuclear Safety and Safeguards (CNSNS) in 1979, those that allowed the development of a prescribed frame in the nuclear and radiological areas. One characteristic of the regulation in radiological protection is the variety in the authorities type that have incidence in the regulation, as a result of the different approaches with which it can be approached. For example, in Mexico normative instruments with content in radiological protection exist and are watched over the Health Secretary, who is oriented to the protection of the patient, their relatives and the medical body; Work and Social Welfare Secretary, with a labor approach; Communications and Transport Secretary, which regulates the transport of nuclear and radioactive materials; Finance and Public Credit Secretary, who regulates the import and export of radioactive materials; Environment and Natural Resources Secretary, which regulates the environment protection; Energy Secretary who has responsibilities inside of the {sup p}rescribed law of article 27 constitutional in nuclear matter{sup ;} and within the energy sector, the CNSNS that expedite and watch the fulfillment of normative in radiological protection and nuclear safety. In order to resist effects of on regulation; frequently inter institutional agreements are carried out in which the areas of monitoring are agreed by each authority. The regulation in radiological protection demands the attention in all the involved subjects, like for example the patient protection. The prescribed experience in Mexico indicates that the involved authorities only must demand faculties for whose fulfillment they have all the necessary resources, or on the contrary to guarantee that it was counted on the same. Also it is necessary to understand that when there are overlap of functions in the regulation must need to be a complete coordination between the involved authorities. (Author)

  14. Characteristics of radiation protection legislation; Caracteristicas de la legislacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Puig Cardozo, Diva E. [Ministerio de Industria, Energia y Mineria (MIEM), Montevideo (Uruguay). Direccion Nacional de Tecnologia Nuclear

    2001-07-01

    The laws on radiological protection have special characteristics. They can exist laws that regulate dangerous activities that will be also applicable, if it corresponds to the activities that involve radioactive materials. But a law of radiological protection should exist. It foresees the existence of an appropriate regulatory body and specialized institutions, definitions, infractions and sanctions then the respective regulations will be elaborated for the different applications. The objective is to contribute to the development of the nuclear energy in the country and to provide the regulatory basis that assures a reasonable security for radioactive installations. The essential objectives of these laws are: 1. to establish the legislative framework for the development and employment of nuclear energy, without risks, according with treaties and conventions that the countries have approved. 2. To fix the fundamental principles and the conditions of their setting in practice allowing to a specific regulation determining application procedures. 3. To create a structure of regulation of enough authority to be able to control and to watch over in an effective way the authorized activities 4. To guarantee an appropriate financial protection against the derived damages of accidents or nuclear incidents. (author)

  15. Radiation protection in large linear accelerators; Seguranca radiologica de aceleradores lineares de grande porte

    Energy Technology Data Exchange (ETDEWEB)

    Oliva, Jose de Jesus Rivero, E-mail: rivero@con.ufrj.br [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Departamento de Engenharia Nuclear; Sousa, Fernando Nuno Carneiro de, E-mail: fernandonunosousa@gmail.com [Aceletron Irradiacao lndustrial, Rio de Janeiro, RJ (Brazil)

    2013-07-01

    The electron linear accelerators can be used in industrial applications that require powerful sources of ionizing radiation. They have the important characteristic of not representing a radiation hazard when the accelerators remain electrically disconnected. With the plant in operation, a high reliability defense in depth reduces the risk of radiological accidents to extremely small levels. It is practically impossible that a person could enter into the radiation bunker with the accelerators connected. Aceletron Irradiacao Industrial, located in Rio de Janeiro, offers services of irradiation by means of two powerful electron linear accelerators, with 15 kW power and 10 MeV electron energy. Despite the high level of existing radiation safety, a simplified risk study is underway to identify possible sequences of radiological accidents. The study is based on the combined application of the event and fault trees techniques. Preliminary results confirm that there is a very small risk of entering into the irradiation bunker with the accelerators in operation, but the risk of an operator entering into the bunker during a process interruption and remaining there without notice after the accelerators were restarted may be considerably larger. Based on these results the Company is considering alternatives to reduce the likelihood of human error of this type that could lead to a radiological accident. The paper describes the defense in depth of the irradiation process in Aceletron Irradiacao Industrial, as well as the models and preliminary results of the ongoing risk analysis, including the additional safety measures which are being evaluated. (author)

  16. Radiation Safety in Industrial Radiography. Specific Safety Guide (Spanish Edition); Seguridad radiologica en la radiografia industrial

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-12-15

    This Safety Guide provides recommendations for ensuring radiation safety in industrial radiography used in non-destructive testing. This includes industrial radiography work that utilizes X ray and gamma sources, both in shielded facilities that have effective engineering controls and in outside shielded facilities using mobile sources. Contents: 1. Introduction; 2. Duties and responsibilities; 3. Safety assessment; 4. Radiation protection programme; 5. Training and qualification; 6. Individual monitoring of workers; 7. Workplace monitoring; 8. Control of radioactive sources; 9. Safety of industrial radiography sources and exposure devices; 10. Radiography in shielded enclosures; 11. Site radiography; 12. Transport of radioactive sources; 13. Emergency preparedness and response; Appendix: IAEA categorization of radioactive sources; Annex I: Example safety assessment; Annex II: Overview of industrial radiography sources and equipment; Annex III: Examples of accidents in industrial radiography.

  17. Radiation protection in medical centers : teletherapy service; Proteccion radiologica en centros hospitalarios : servicio de teleterapia

    Energy Technology Data Exchange (ETDEWEB)

    Resendiz G, G.; Perez P, M.; Figueroa M, E. [Clinica Medica Sur, Servicio de Radioterapia, Puente de Piedra No. 150, Col. Toriello Guerra, Mexico 14050 D. F. (Mexico)

    2008-12-15

    The General Regulation of Radiation Safety, it clearly provides the classification, requirements and obligations of the various figures relating to a radiation protection system, i.e., the occupationally exposed personnel, the radiation safety responsible, the legal representative, the type of installation, etc. For new installations, the shieldings calculation should be contained in the analytical report with due consideration of factors, such as those surrounding the areas classification based on the occupation type, the work load of the equipment and others. The operation license involves requirements such as the Report and the Radiation Safety Handbook, the Emergencies Plan, the establishment of register levels, investigation and intervention, the way it is carried out medical surveillance of the occupationally exposed personnel, and the description of the protection mechanisms and detection instrumentation and radiation measurement. Deserves mention the case when high readings are recorded in the personal dosimeters, which must submit to an interrogation to the employee, you must determine if it is an incorrect reading to the service provider, you must perform a medical exam blood cell count with relevant to the dose determination, may eventually can lead to a cytogenetic study and the determination to do if confirmed an unexpectedly high dose. Moreover, the technology evolution also implies the development of adaptation measures. For example, the Intensity Modulated Radiation Therapy, which is an advanced high-precision radiotherapy that uses X-ray accelerators for computer-controlled radiation doses precisely to a malignant tumor or specific areas within the tumor, taking into account requires regard to equipment, and space and shielding, time and staff hours for treatment, personnel training, materials for making images (such as two-dimensional arrangements of integrated circuits or diodes, films or portal images), the attention given by the engineers of service, the validation of the treatment plan and quality control of the planning system and dosimetry parameters and mechanics. (Author)

  18. Radiological Protection Service of CN Asco; Servicio de ProteccionRadiologica de C. N. Asco

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2015-07-01

    Briefly explains the structure of Radiation Protection Service (SPR) of CN Asco to address these performances, as well as a short description of the main activities that have been reinforced or have been incorporated into the routine activities of the SPR. (Author)

  19. Radiological emergencies and the ARCAL project; Emergencias radiologicas y el rol del proyecto ARCAL

    Energy Technology Data Exchange (ETDEWEB)

    Gironzini, Eduardo Medina [Instituto Peruano de Energia Nuclear, Lima (Peru)

    1997-12-31

    The ARCAL project and its purpose are described. The project has started on 1985 and assembles the Latin American countries in a concentrate effort to develop and to strengthen activities of radiological protection in technical cooperation with the IAEA. Radiological emergency is a high important subject in all the projects developed by ARCAL. The ARCAL activities are briefly presented, such as: meetings, training courses, seminars, dissemination of information, preparing of technical documents, books, etc. The role of ARCAL in the field of radiological emergency is discussed 6 refs.; e-mail: congres at ciplim.org.pe

  20. Radiation emergency planning for medical organizations; Plan de emergencia radiologica en entidades de salud

    Energy Technology Data Exchange (ETDEWEB)

    Jerez Vergueria, Sergio F. [Instituto de Medicina del Trabajo, La Habana (Cuba); Jerez Vergueria, Pablo F. [Centro Nacional de Seguridad Nuclear, La Habana (Cuba)

    1997-12-31

    The possible occurrence of accidents involving sources of ionizing radiation demands response plans to mitigate the consequences of radiological accidents. This paper offers orientations in order to elaborate emergency planning for institutions with medical applications of ionizing radiation. Taking into account that the prevention of accidents is of prime importance in dealing with radioactive materials and others sources of ionizing radiation, such as X-rays, it is recommended that one include in emergency instructions and procedures several aspects relative to causes which originate these radiological events. Topics such as identification of radiological events in these practices and their consequences, protective measures, planning for and emergency response and maintenance of emergency capacity, are considered in this article. (author) 16 refs., 1 tab.; e-mail: sfjerez at rdc.puc-rio.br

  1. Diagnosis of radiological security of installations; Diagnostico de la seguridad radiologica de instalaciones

    Energy Technology Data Exchange (ETDEWEB)

    Herrera V, L [Laboratorio de Vigilancia Radiologica Ambiental, Gerencia de Seguridad del ININ (Mexico)

    1991-07-01

    The objective of this work is to discuss the diagnosis of the radiological safety of nuclear or radioactive facilities. It was concluded that the one diagnoses like discipline of the radiological safety is susceptible of being represented, taught and programmable in computer and useful systems as preventive tool and of inspection.

  2. Radiological protection and environmental management; La proteccion radiologica y la gestion ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Perez Fonseca, A.

    2010-07-01

    From the beginning of its industrial activity twenty five years ago, the Juzbado Factory of Enusa Group has always upheld a strong commitment with Radiological Protection and environmental respect and protection. Consequently, the evolution of dose shows a downward trend over the years. Although production has been increased gradually, the average doses to workers have stayed below 1 mSv. In order to identify and prevent the potential environmental impacts of its industrial activity and minimize its impact on the surroundings, the facility develops and environmental management system according to UNE-EN-ISO 14001 since 1999. (Author)

  3. Radiological evaluation of the cranio vertebral junction; Avaliacao radiologica da transicao cranio-vertebral

    Energy Technology Data Exchange (ETDEWEB)

    Mello, Silvia Marcal Benicio de; Haetinger, Rainer Guilherme [Med Imagem - Beneficiencia Portuguesa de Sao Paulo, SP (Brazil). Setor de Cabeca e Pescoco]. E-mail: sbm@uol.com.br; Schettini, Marianna Cunha; Lima, Sergio Santos [Med Imagem - Beneficiencia Portuguesa de Sao Paulo, SP (Brazil); Mourao, Maria Lucia; Mendonca, Renato Adam [Med Imagem - Beneficiencia Portuguesa de Sao Paulo, SP (Brazil). Setor de Neuroradiologia

    2005-04-15

    The cranio vertebral junction (CVJ) comprises the occiput, atlas, their joints and ligaments. Besides conventional x-rays other imaging methods are need for the assessment of CVJ including high resolution computerized tomography (CT) and magnetic resonance imaging (MRI) which provide specific parameters such as field of view, slice thickness and incremental movement of the patient. A dynamic study is also important to assess the stability of the cranio vertebral junction and the effect upon the bulbomedullary junction. The aim of this study is to review the techniques used in the evaluation of the CVJ, the semiological parameters, and the most frequent disorders affecting this region. We review the literature and present conventional x-ray, CT and MRI images from the didactic file of the Radiology service 'Med Imagem - Beneficiencia Portuguesa de Sao Paulo, SP, Brazil, of cases with normal anatomy and the main congenital and acquired disorders of the CVJ. In daily practice, CVJ disorders are diagnoses using CT and MRI scans of the head and cervical spine. It is essential to be familiar with these conditions in order to preform specific tests which will allow a detailed study of the CVJ, thus providing the basis for the treatment, whenever indicated. (author)

  4. Research and development in radiological protection; Investigacion y desarrollo en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Butragueno, J. L.; Villota, C.; Gutierrez, C.; Rodriguez, A.

    2004-07-01

    The objective of Radiological Protection is to gurantee that neither people, be they workers or members of the public, or the environment are exposed to radiological risks considered by society to be unacceptable. Among the various resources available to meet this objective is Research and Development (R and D), which is carried out in three areas: I. Radiological protection of persons: (a) knowledge of the biological effects of radiations, in order to determine the relationship that exists between radiation exposure dose and its effects on health; (b) the development of new personal dosimetry techniques in order to adapt to new situations, instrumental techniques and information managmenet technologies allowing for better assessment of exposure dose; and (c) development of the principle of radiological protection optimisation (ALARA), which has been set up internationally as the fundamental principle on which radiological protection interventions are based. II. Assessment of environmental radiological impact, the objective of which is to assess the nature and magnitude of situations of exposure to ionising radiations as a result of the controlled or uncontrolled release of radioactive material to the environment, and III.Reduction of the radiological impact of radioactive wastes, the objective of which is to develop radioactive material and waste management techniques suitable for each situation, in order to reduce the risks assocaited with their definitive managmenet or thier release to the environment. Briefly desribed below are the strategic lines of R and D of the CSN, the Electricity Industry, Ciemat and Enresa in the aforementioned areas. (Author)

  5. Radiological findings of pulmonary Kaposi's sarcoma. Manifestaciones radiologicas del sarcoma de Kaposi pulmonar

    Energy Technology Data Exchange (ETDEWEB)

    Rosello, J A; Hernandez, S; Arranz, M; Jareo, J; Ancoechea, J

    1994-01-01

    Kaposi's sarcoma (KS) is the most common neoplasm in AIDS patients. The incidence of pulmonary involvement is approximately 20%. The radiological findings are reported in plain chest x-ray and computed tomography (CT) in 15 patients diagnosed as having pulmonary Kaposi's sarcoma, in whom concomitant pulmonary infection was ruled out. The most common radiological pattern was that of bilateral perihilar interstitial involvement (86%), while poorly defined multiple nodules seldom presented (13%). In 40% of cases, the pulmonary parenchymal lesion was accompanied by pleural effusion. This sign is useful in the differential diagnosis involving opportunistic P. carinii pneumonia, a very common process in these patients which rarely presents with pleural effusion. The chest CT finding that was most characteristic of pulmonary Kaposi's sarcoma was bilateral perihilar peribronchovascular enlargement. (Author)

  6. Environmental monitoring networks in Spain; Redes de vigilancia radiologica ambiental en Espana

    Energy Technology Data Exchange (ETDEWEB)

    Luque Heredia, S.; Martin Matarranz, J. L.; Marugan Tovar, I.; Rey del Castillo, C.; Salas Collantes, R.; Sterling Carmona, A.; Ramos Salvador, L. M.

    2011-07-01

    Environmental monitoring in Spain is carried out by several networks with different objectives and scope, a monitoring network in the vicinity of nuclear facilities and radioactive nuclear fuel cycle and various monitoring networks nationally funded and managed by agencies public. The aim of this paper is to present a summary of all monitoring networks, including a series of figures with the stations that are, their geographical distribution and the programs in them.

  7. Radioprotection of the patient in nuclear medicine; Proteccion radiologica del paciente en medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Perez, Maria del R [Autoridad Regulatoria Nuclear, Buenos Aires (Argentina)

    2004-07-01

    The following topics are developed: concepts on radioprotection; stochastic and deterministic effects; the prenatal irradiation; different types of radiation exposition (medical, occupational and public irradiation); and the justification of the levels of radiation.

  8. The radiological protection in the radiotherapy; La proteccion radiologica en la radioterapia

    Energy Technology Data Exchange (ETDEWEB)

    Castaneda M, A.; Gonzalez N, A. G. [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico)

    2010-09-15

    The cancer incidence in the world has been increased with the course of the time. Fifty percent of the patients receive radiotherapy, as much in the initial treatment, as in the recurrence cases or palliatives. At the moment is considered that in 1998 there were 2,500 teletherapy machines in operation in the countries in development and for the year 2015 will be necessary 10,000. In Mexico the use of these teletherapy units goes back to the year of 1956, when the effort of the Dr. Noriega Limon was consolidated with the installation of the first teletherapy unit with a cobalt 60 source in the National Medical Center of the IMSS. In the same decade the operation began of the Calibration Secondary Center located in the facilities of the General Hospital of Assistance and Health Secretary where a group of seven physicists began in the metrology techniques. Also the national authority in matter of the ionizing radiations use appears and promulgates the first Law in Nuclear Matter. The application has extended in the country, as well as other techniques that have gone incorporating for the cancer treatment. Such as: the brachytherapy, the stereo ataxia and the ophthalmic applicators. In the current application of the radiotherapy several factors are interrelated that have for objective that the dose to the workers and the public is as low as reasonably it can be achieved and that the patient receives the dose prescribed by the medical treatable in the organ or tissue and in the orderly quantity with the minor damage for the healthy tissues. To reach all this, it is necessary to have equipment s, systems, procedures, personal and standards that improve their quality in a gradual but firm way, also the good communication and comprehension among authorities are fundamental for this noble task. (Author)

  9. Radiological protection in studies of interventionist fluoroscopy; Proteccion radiologica en estudios de fluoroscopia intervencionista

    Energy Technology Data Exchange (ETDEWEB)

    Juarez R, K.M

    2004-07-01

    The main objective of this study is to determine, if it is necessary or not, to establish appropriate additional procedures of radiological protection for the personal occupationally exposed. The particular objectives are: To evaluate the dose received in different parts of the body, for the personnel occupationally exposed (doctors, technicians and/or nurses) during studies with fluoroscopy. To compare the annual effective dose received by each OEP with the values of the limits settled down by the norms. To recommend protection measures in the event of being necessary. In the chapter 1 an introduction it is presented on the fluoroscopy, the types of studies that are carried out in interventionist fluoroscopy, as well as some characteristics of the equipment, and antecedents of studies carried out so much to patient as to the personnel. The chapter 2 contains the basic concepts of the interaction of the ionizing radiation with the matter, of the dosimetry and of the radiological protection. The characteristics and treatments of the dosemeters, the experimental techniques, devices and used calibration methods, as well as the studies with fluoroscopy and the regions of the body of the OEP for those that the measures of the dose were made are presented in the chapter 3. The chapter 4 contains the such experimental results as the values of the dose, for study in the different parts of the body, for the main doctors, auxiliary and anesthesiologist; the dose, for study, as function of the one time of duration of the study and of the patient's weight, as well as the annual effective dose to whole body, equivalent dose to crystalline, to hands, to feet and to skin, for each doctor and their comparison with the limits. The chapter 5 it contains the conclusions. Finally in the appendix the charts are included of the dose received by the principal doctor, the auxiliary doctor and the anesthesiologist during the carried out studies. (Author)

  10. Environmental radiological protection of Bariloche Atomic Center; Proteccion radiologica ambiental del Centro Atomico Bariloche

    Energy Technology Data Exchange (ETDEWEB)

    Andres, Pablo A.; Levanon, Izhar S., E-mail: andresp@cab.cnea.gov.ar, E-mail: levanon@cab.cnca.gov.ar [Comision Nacional de Energia Atomica (CNEA), San Carlos de Bariloche (Argentina). Centro Atomico Bariloche. Division Proteccion Radiologica

    2013-07-01

    This plan of monitoring radiological environmental routine fits on environmental policy of CNEA, satisfying national and international recommendations for licensed facilities. Sampling matrices are related to direct routes of exposure: air and water (river, lake, sediments, drinking water). Soil samples are also analyzed for having integrated matrices. They are considered as minimum three points of measurement: a white point (water or winds up), a point of maximum (water or winds down) and a point corresponding to the location of the individual representative or a point of public interest. Measurements in air estimate KERMA rate with thermoluminescent dosimeters, bi-monthly, and concentrations of particulate material and aerosols. For water samples (monthly), soil and sediments (quarterly), radionuclides that have download limits are analyzed, according to its importance in the dosages produced in the representative individual. In these cases artificial radionuclides using gamma spectrometry, beta total and Sr-90 by radiochemical techniques if the value of total screening (1 Bq/L) is exceeded. Foods are not included because no possible matrices were detected, either by their distance. by located not predominant wind direction. They are however still looking for milk producers that fulfills the minimum requirements.The data collected are compared with environmental baselines to set trends that might point to future significant changes in the environment during the life of the facilities. So far it was not observed significant differences with respect to baseline values.

  11. Radiological findings of pulmonary Kaposi's sarcoma. Manifestaciones radiologicas del sarcoma de Kaposi pulmonar

    Energy Technology Data Exchange (ETDEWEB)

    Rosello, J.A.; Hernandez, S.; Arranz, M.; Jareo, J.; Ancoechea, J.

    1994-01-01

    Kaposi's sarcoma (KS) is the most common neoplasm in AIDS patients. The incidence of pulmonary involvement is approximately 20%. The radiological findings are reported in plain chest x-ray and computed tomography (CT) in 15 patients diagnosed as having pulmonary Kaposi's sarcoma, in whom concomitant pulmonary infection was ruled out. The most common radiological pattern was that of bilateral perihilar interstitial involvement (86%), while poorly defined multiple nodules seldom presented (13%). In 40% of cases, the pulmonary parenchymal lesion was accompanied by pleural effusion. This sign is useful in the differential diagnosis involving opportunistic P. carinii pneumonia, a very common process in these patients which rarely presents with pleural effusion. The chest CT finding that was most characteristic of pulmonary Kaposi's sarcoma was bilateral perihilar peribronchovascular enlargement. (Author)

  12. Radiological pulmonary manifestations of acquired immunodeficiency syndrome; Manifestacoes radiologicas pulmonares da sindrome da imunodeficiencia adquirida

    Energy Technology Data Exchange (ETDEWEB)

    Marchiori, Edson; Melo, Alessandro Severo Alves de; Ossa, Alfonso Jaramillo [Universidade Federal Fluminense, Niteroi, RJ (Brazil). Dept. de Radiologia

    1999-06-01

    In this article are reviewed the principal radiologic manifestations of inflammatory and tumoral diseases the compromise the lungs of patients with acquired immunodeficiency syndrome. In the group of inflammatory diseases the radiologic aspects of pneumocystosis, cytomegalovirus disease, cryptococcosis, tuberculosis and bacterial pneumonias are emphasized. In the neoplasic diseases' group the aspects of lymphoma and Kaposi's sarcoma are specially presented. (author)

  13. Medical intervention in radiological emergencies, formation and training; Intervencion medica en emergencias radiologicas, formacion y adiestramiento

    Energy Technology Data Exchange (ETDEWEB)

    Cardenas H, J. [CPHR, Calle 20 No. 4113, e/41 y 47 Playa, CP 11300, La Habana (Cuba)]. e-mail: cardenas@cphr.edu.cu

    2006-07-01

    The work exposes the national experience in the development of training programs in medical aspects of the radiological emergencies. Implemented after valuing the existent situation, identified the necessities and the reach of the training, additionally it was elaborated the content of the training program whose purpose is guided to the invigoration of the medical answer capacity in radiological emergencies The content of the modular program it approaches theoretical- practical aspects on preparation and medical answer in radiological emergencies. The program includes an exercise that simulates a radiological accident, to evaluate during the same one, the answer capacity before this situation. The training concludes with the design of a strategy for the preparation and answer in radiological emergencies in correspondence with the potential accidental scenarios that the participants can face. (Author)

  14. Radiological protection in nuclear power plants; La proteccion radiologica en las centrales nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Zorrilla R, S. [CFE. Central Laguna Verde, Km. 42.5 Carretera Cardel-Nautla, Veracruz (Mexico)

    2008-12-15

    This presentation sharing experiences which correspond to the nuclear power plant of Laguna Verde. This nuclear power plant is located at level 2 of four possible, in the classification performance of the World Association of Nuclear Operators (WANO), which means the mexican nuclear power plant is classified in terms of its performance indicators and above the average achieved by their counterparts americans and canadians. In the national context, the nuclear power plant of Laguna Verde has also been honored with several awards such as the National Quality Award, the Clean Industry Certificate, the distinction of Environmental Excellence and others of similar importance. For the standards of WANO, the basic idea is that there are shortcomings in one of nuclear power plant concern to all partners. The indicators used for the classification will always go beyond more compliance with regulations, which are assumed, and rather assume come or a path to excellence. Among the most important indicators are: the collective dose, the percentage of areas declared as contaminated, the number, type and tendency of contamination personal cases, the number of dosimetry alarms, the number of unplanned exposures, loss control of high radiation areas and the release of contaminated material outside the restricted areas. Furthermore, as already indicated, nuclear power plants are of special care situations, such as, carrying out work in areas with radiation fields of more than 15 mSv h{sup -1}, the movement of spent fuel in the reload floor. The consideration of the minimum total effective dose equivalent as a criterion for prescribing tools that reduce exposures, but may increase the external cases of contaminated casualties, the experience in portals such as workers subject to radiology, where exposure in industrial radiography, and so on. Special mention deserve the conditions generated during fuel reload stops, which causes a massive personnel movement, working simultaneously on several fronts, the number of dosimetry transactions, increases up to 30 times the normal operation, and so on. For these reasons during the reloads, the electronic dosimetry system and the monitoring system output contamination staff becomes critical systems whose functioning must be ensured to avoid becoming a bottleneck. Reloads must also be planned for a perfect manning of critical supplies such as clothing and protection accessories against contamination. (Author)

  15. e-Learning applications for radiological protection training; Aplicaciones de la teleformacion en la proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez, F.; Gomez-Arguello, B.; Callejo, J. L.

    2003-07-01

    The unattended training, through e-learning platforms, offers advantages in comparison with the traditional attended training, such as, freedom to study when, where and how the trance desires, the student is learning customization, a continuous self evaluation of the learning process and the rhythm of study, etc. To explore the possibilities of the radiological protection training in a WEB site, a first application for External Workers has been developed. The high number of students, their geographical dispersion and their different level of knowledge and experience arise attended training limitations in this area. In this article, the WEB course Basic Radiological Protection is presented and the results, preliminarily conclusions and lesson learnt are analysed. (Author) 7 refs.

  16. Digital filtering techniques applied to electric power systems protection; Tecnicas de filtragem digital aplicadas a protecao de sistemas eletricos de potencia

    Energy Technology Data Exchange (ETDEWEB)

    Brito, Helio Glauco Ferreira

    1996-12-31

    This work introduces an analysis and a comparative study of some of the techniques for digital filtering of the voltage and current waveforms from faulted transmission lines. This study is of fundamental importance for the development of algorithms applied to digital protection of electric power systems. The techniques studied are based on the Discrete Fourier Transform theory, the Walsh functions and the Kalman filter theory. Two aspects were emphasized in this study: Firstly, the non-recursive techniques were analysed with the implementation of filters based on Fourier theory and the Walsh functions. Secondly, recursive techniques were analyzed, with the implementation of the filters based on the Kalman theory and once more on the Fourier theory. (author) 56 refs., 25 figs., 16 tabs.

  17. Action of arginine for protection of ulcerative colitis by dextran sodium sulphate (DSS); Acao da arginina na protecao da colite ulcerativa induzida por sulfato de sodio dextrano

    Energy Technology Data Exchange (ETDEWEB)

    Andrade, Maria Emilia Rabelo

    2016-10-01

    Recent studies have demonstrated the benefits of immunomodulators, such as arginine, in the regulation of inflammatory responses and trophism of the intestinal mucosa. The aim of this study was to evaluate the possible mechanisms action of arginine (pretreatment or treatment) in experimental model of ulcerative colitis induced by dextran sodium sulfate (DSS). C57BL/6 mice were randomized into 5 groups: Control group (C): standard diet and water; Arginine group (ARG): diet supplementation with arginine and water; Colitis group (COL): standard diet and DSS solution; Pretreated group (PT): diet supplementation with arginine before and during colitis induction; Treated group (T): diet supplementation with arginine during colitis induction. Colitis was induced by administration of 1.5% DSS for 5 days. After this, all the mice were euthanized and blood, organs and intestinal fluid were collected for carrying out analyzes. Parameters such as intestinal permeability (IP), bacterial translocation (BT), histological analysis (histological score, morphometric analysis, collagen and mucins stain), nitrate and nitrite, cytokines and chemokines, secretory immunoglobulin A (sIgA), inflammatory infiltrate and oxidative stress were performed. The ARG group did not show difference compared to group C in the investigated parameters (C vs ARG: p> 0.05). The COL group showed increased IP (C vs COL: p < 0.05) and BT (C vs COL: p <0.05). In the histological analysis, the COL group showed severe inflammation and reduction the crypts length. In addition, in the group COL observed increase infiltration of eosinophils, neutrophils and macrophages in the colon, increase cytokine IL-17 and chemokine KC in serum and oxidative stress in the colon (COL vs C: p <0.05). In the arginine-supplemented groups (PT and T) was observed decrease IP and BT to blood, liver and lung (PT and T vs Col: p <0.05). Histological analysis showed that the arginine (PT and T) preserved the intestinal mucosa and crypts length. Furthermore, arginine (PT and T) reduced the infiltration of eosinophils and macrophages and oxidative stress in the colon (PT and T vs. COL: p <0.05). Only treatment with arginine (group T) increased collagen area and nitrite/nitrate concentration in the colon (T and C vs. COL: p <0.05), reduced the cytokine IL-17 in serum (T vs. COL: p <0.05) and increased cytokine TGF-β in serum and colon (T vs C: p < 0.05). In conclusion, the study showed that arginine restored the intestinal epithelium and decreased inflammation. Treatment with arginine (group T) increased collagen e NO production. Furthermore, modulated the immune response increasing the concentration of TGF-β cytokine and reducing IL-17 cytokine. These results suggest that this amino acid can constitute in potential therapy for intestinal inflammatory diseases. (author)

  18. Gold nanoparticles applications in natural polymer modified for UV protection; Aplicacao de nanoparticulas de ouro em polimero natural modificado para protecao ultravioleta

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Iris O. da; Ladchumananandasivam, Rasiah; Nascimento, Jose H. O. do; Silva, Francisco C. da; Sa, Christiane S. de A., E-mail: iris.oliveira@gmail.com.br [Universidade Federal do Rio Grande do Norte (PPGEM/UFRN), Natal, RN (Brazil)

    2015-07-01

    The protein-based polymers such as milk, such as polylactic acid (PLA) and soya can be cited as examples of substrates used in various fields of engineering, mainly due to its character of biodegradability, generating low environmental impact when compared to chemical polymers to petroleum-based, which take years to decompose in nature. Among these, soy fiber has great application potential because it is a manufactured material base of a residue obtained from the existing folder in the soybean seeds after oil extraction, using resins and chemicals for structural modification. In this work, soy mesh was used to develop a material with ultraviolet protection properties, through the use of nanotechnology. Thus, to connect the gold nanoparticles (NPAu), the fabric had a surface charge modified with the use of chitosan, using 20% of the weight of the material, followed by nanomaterials exhaust process. The NPAu were synthesized via chemical synthesis with sodium nitrate as reducing and stabilizing agent. The analysis of the solution samples were evaluated by absorbance spectroscopy and solid materials through diffuse reflectance spectroscopy and XRD X-ray diffraction. The size of NPAu was evaluated in equipment Zetasizer nanoseries / nanoZ, finding nanoparticles with an average size of 34.59 nm, and also underlined plasmon resonance phenomenon, with peaks between 530 nm and red coloration, and good results from the soundness washes, compared to conventional dyeing. It was found that soy polymer treated with NPAu presented an excellent property with ultraviolet protection factor (UPF) of +50, considered excellent, proving its potential application in the biomedical field. (author)

  19. Functional utilization of control and digital protection systems in distribution substations; Aproveitamento funcional de sistemas de controle e protecao digitais em subestacoes de distribuicao

    Energy Technology Data Exchange (ETDEWEB)

    Brittes, Jose Luiz Pereira

    1996-07-01

    The application of Digital Protection and Control Systems (DPCS) in Utilities substations is a fundamental part for their Information System. Technological progress in Telematics provides nowadays, the implementation of open digital systems. But it is the wide exploitation of its potentiality that will be one of the survival factor in the competitive and multi-affair environment dictated by the new worldwide economical order. This exploitation is carried out in three levels inside the substation: at bay level, with inherent technological benefits, such as more efficient and reliable protection, data acquisition and registration, and smart control; at central level (substation), by the implantation of automatics with enormous operational and management profits; and a remote level, to whom DPCS's transpire like a very sophisticated large frame remote terminal units. (author)

  20. Functional utilization of control and digital protection systems in distribution substations; Aproveitamento funcional de sistemas de controle e protecao digitais em subestacoes de distribuicao

    Energy Technology Data Exchange (ETDEWEB)

    Brittes, Jose Luiz Pereira

    1996-07-01

    The application of Digital Protection and Control Systems (DPCS) in Utilities substations is a fundamental part for their Information System. Technological progress in Telematics provides nowadays, the implementation of open digital systems. But it is the wide exploitation of its potentiality that will be one of the survival factor in the competitive and multi-affair environment dictated by the new worldwide economical order. This exploitation is carried out in three levels inside the substation: at bay level, with inherent technological benefits, such as more efficient and reliable protection, data acquisition and registration, and smart control; at central level (substation), by the implantation of automatics with enormous operational and management profits; and a remote level, to whom DPCS's transpire like a very sophisticated large frame remote terminal units. (author)

  1. The city as a participant in the protection of groundwater in Brazil; O municipio como participe na protecao das aguas subterraneas no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Cordeiro de Souza, L.

    2012-11-01

    Brazilian environmental legislation aims to ensure the protection and preservation of the environment, and particularly its natural resources, in search of a better quality of life for all. The lack of force in existing statutes, however, sometimes renders the purpose of the law ineffective. Our water sources, providing this vital and essential element for life, are suffering pollution and contamination. Our focus here is on the subject of groundwater, which is widely relied upon in Brazil as a water source, but treated in some places in an uncontrolled way, and due to different forms of pollution and contamination arriving at the vulnerable areas of the aquifers, may easily be compromised both in quality and quantity. Constitutional authority to legislate on groundwater has been given to the Member States, since it falls outside the legal remit of individual municipalities. Studies show, however, that pollutants are reaching the aquifers from the overlying soil, which leads to a demand that the municipalities should use their constitutional authority to legislate on land use and its management to protect and preserve these important water sources, especially in the area of the Guarani aquifer. To this effect, we propose the creation of a Special Environment Zoning tool (ZEA) to limit land use in areas of aquifer vulnerability, by which municipalities become active participants in the protection process aimed at preventing harm to the groundwater of the Guarani aquifer. (Author)

  2. Workshop on radiation protection of patient. Workshop on radiation protection of worker in nuclear medicine and biomedicine; Taller sobre proteccion radiologica del paciente. Taller sobre proteccion radiologica del trabajador en medicina nuclear y biomedicina

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    In these workshops, information on the following subjects was presented: biological and prenatal effects of ionizing radiation, excretion of radiopharmaceuticals in human breast milk, fetal doses assessment, final disposal of radioactive waste in medical applications, regulatory functions for installations in nuclear medicine, workers doses in nuclear medicine and biomedicine, radioprotection of their nuclear installations, programs of quality assurance, etc.

  3. Costo-Efectividad de la Proteína C Reactiva, Procalcitonina y Escala de Rochester: Tres Estrategias Diagnosticas para la Identificación de Infección Bacteriana Severa en Lactantes Febriles sin Foco.

    Science.gov (United States)

    Antonio Buendía, Jefferson; Colantonio, Lisandro

    2013-12-01

    The optimal practice management of highly febrile 1- to 3-month-old children without a focal source has been controversial. The release of a conjugate pneumococcal vaccine may reduce the rate of occult bacteremia and alter the utility of empiric testing. The objective of this study was to determine the cost-effectiveness of 3 different screening strategies of Serious Bacterial Infections (SBI) in Children Presenting with Fever without Source in Argentina. Cost-effectiveness (CE) analysis was performed to compare the strategies of procalcitonin, C reactive protein and Rochester criteria. A hypothetical cohort of 10 000 children who were 1 to 3 months of age and had a fever of >39°C and no source of infection was modeled for each strategy. Our main outcome measure was incremental CE ratios. C reactive protein result in US$ 937 per correctly diagnosed cases of SBI. The additional cost per additional correct diagnosis using procalcitonin versus C reactive protein was U$6127 while Rochester criteria resulted dominated. C reactive protein is the strategy more cost-effective to detect SBI in children with Fever without Source in Argentina. Due to low proportion of correctly diagnosed cases (< 80%) of three tests in the literature and our study, however; an individualized approach for children with fever is still necessary to optimize diagnostic investigations and treatment in the different emergency care settings. © 2013 International Society for Pharmacoeconomics and Outcomes Research (ISPOR) Published by International Society for Pharmacoeconomics and Outcomes Research (ISPOR) All rights reserved.

  4. Development of aqueous fluids with bentonite clay for drilling of onshore oil wells; Conceitos, feicoes diagnosticas e exemplos sismicos de dobras associadas a falhas distensionais na secao rifte das bacias de Campos e Santos

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, Mario Neto Cavalcanti de; Silva, Paulo Cezar Santarem da; Matos, Gabriel Correa de [PETROBRAS SA. (CENPES/PETROBRAS), Rio de Janeiro, RJ (Brazil). Centro de Pesquisas e Desenvolvimento Leopoldo A. Miguez de Mello. Gerencia de Geologia Estrutural e Geotectonica], Emails: marioaraujo@petrobras.com.br, paulosantarem@petrobras.com.br, gabriel.matos@petrobras.com.br; Lima, Rodrigo Dias [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil). E e P. Gerencia de Interpretacao das Bacias da Costa Sudeste], Email: rodrigolima@petrobras.com.br

    2008-11-15

    With the exception of the salt-related rollover folds of the Brazilian Continental Margin, folds are not features commonly associated with extensional faults. N-S-trending folds are common features in the hanging wall or above the termination of normal basement faults of the pre, syn and post-rift sequences of the Campos and Santos basins. Regional compression, differential compaction and local transpression are interpreted as the main reasons to explain the formation of folds in the Brazilian margin. However, they can also be formed as a result of the interplay among kinematics, amount of slip and geometry of faults. Two main types of fault-related folds are strongly influenced by geometry and kinematics: fault-bend folds and fault-propagation folds. Fault-bend folds are flexures formed as a result of dip changes of the fault plane. The folds are formed by the collapse of the hanging wall block as it passes over the top of bends in the fault plane. Fault-propagation folds form when movement of basement faults propagates deformation above their tip into a stratified rift and/or post-rift sequence. In this case, the movement of the buried normal fault produces folding in the overlying rocks, without expressive rupture of the beds. Movement along these folds can be accompanied by flexural slip mechanisms, allowing their lateral migration away from the fault plane and the formation of fold swarms like those in the Campos and Santos basins. The strong geometrical relationships of fault-bend and fault-propagation folds not only facilitate the predictive interpretation of these structures in seismic sections, but also allow measurement of stretching, reservoir quality predictions and fracture intensity estimates. In the Campos and Santos basins, regional scale fault-bend and fault-propagation folds might be responsible for the structural control of basement highs and depressions, distribution and migration of depo centers, and location of fractured zones. Fold swarms above the termination of buried normal folds commonly present in the Santos Basin rift sequence, can be the result of fault-propagation folds. Seismic examples of the Campos and Santos basins are used in this study to introduce the significance of extensional fault-related folds and their application to exploration. The new discoveries in the Brazilian margin launched many efforts to increase the seismic quality of the rift. However, it is difficult to image great depths and thick salt layers. Nonetheless, it is clear that the rift architecture controls many of the sedimentary sequences during their formation. The identification of extensional fault-related folds in the basement and rift sequences is crucial to interpret deep structures. The correct interpretation of extensional fault-related folds avoids misinterpretation of seismic sections and gives a better understanding of sediment dispersal, distribution of fractured zones, identification of migration paths, improved geometrical definition of traps and volume estimates. (author)

  5. Diagnostic Efficiency of MR Imaging of the Knee. Relationship to time Interval between MR and Arthroscopy; Eficacia diagnostica de la RM de rodilla. Relacion con el intervalo de tiempo entre la RM y la artroscopia

    Energy Technology Data Exchange (ETDEWEB)

    Barrera, M. C.; Recondo, J. A.; Aperribay, M.; Gervas, C.; Fernandez, E.; Alustiza, J. M.

    2003-07-01

    To evaluate the efficiency of magnetic resonance (MR) in the diagnosis of knee lesions and how the results are influenced by the time interval between MR and arthroscopy. 248 knees studied by MR were retrospectively analyzed, as well as those which also underwent arthroscopy. Arthroscopy was considered to be the gold standard, MR diagnostic capacity was evaluated for both meniscal and cruciate ligament lesions. Sensitivity, specificity and Kappa index were calculated for the set of all knees included in the study (248), for those in which the time between MR and arthroscopy was less than or equal to three months (134) and for those in which the time between both procedures was less than or equal to one month. Sensitivity, specificity and Kappa index of the MR had global values of 96.5%, 70% and 71%, respectively. When the interval between MR and arthroscopy was less than or equal to three months, sensitivity, specificity and Kappa index were 95.5%, 75% and 72%, respectively. When it was less than or equal to one month, sensitivity was 100%, specificity was 87.5% and Kappa index was 91%. MR is an excellent tool for the diagnosis of knee lesions. Higher MR values of sensitivity, specificity and Kappa index are obtained when the time interval between both procedures is kept to a minimum. (Author) 11 refs.

  6. Radiation nursery and occupational exposure: state-of-art; Enfermagem radiologica e os riscos ocupacionais: estado da arte

    Energy Technology Data Exchange (ETDEWEB)

    Melo, J.A.C.; Huhn, A.; Viana, E.; Rosa, G., E-mail: julianac@ifsc.edu.br [Instituto Federal de Educaco, Ciencia e Tecnologia de Santa Catarina (IFSC), Florianopolis (Brazil); Luz, K.R. [Universidade Federal de Santa Catarina (UFSC), Florianopolis (Brazil); Derech, R. [Prefeitura Municipal de Florianopolis, SC (Brazil)

    2015-07-01

    Documentary research with the aim to reflect on the state of the art in radiological nursing, on the nursing work and occupational hazards they are exposed, from articles produced in Brazil. The survey was conducted in the BVS, the study consisted of seven articles published from 2002 to 2012. Regarding the main variables studied in the articles, issues emerged related to working conditions and biosafety, performance of nurses, legislation, continuing education and difficulties and needs of nursing staff . It was noticed that is recent the interest in the field, but the work of nurses in radiological technologies must be grounded in current scientific knowledge and with proper technique, to the achievement of the desired clinical outcome and to promote their safety, the team and also the patient. (author)

  7. Report of radiological safety for a micro PET; Informe de seguridad radiologica para un microPET

    Energy Technology Data Exchange (ETDEWEB)

    Gallegos M, R.; Ruiz T, C. G.; Martinez D, A.; Rodriguez V, M., E-mail: romeo@fisica.unam.m [UNAM, Instituto de Fisica, Circuito de la Investigacion Cientifica, Ciudad Universitaria, 04510 Mexico D. F. (Mexico)

    2010-09-15

    Considering one of the guides emitted by the National Commission of Nuclear Security and Safeguards, was realized the report of radiological safety for a micro tomography by positrons emission that is part of Bimodal System of Images developed in their entirety for personnel of the Physics Institute of UNAM. With this system is sought to obtain tomography images of small animals using non destructive methods, such as computerized micro tomography and micro tomography by positrons emission. In this work each one of the report points is enumerated and only it is described, to big features on that consist, due to the great extension of each one of them. The report has two parts; the first is denominated -Of the installation and the Organization- and is given to know the interior and external characteristics of the installation, besides how and under which authority the activities will be executed inside the laboratory. The second part is called -of the Radiological Protection- and has for objective to describe the radiation sources that will be used, as well as the measures of radiological protection foreseen inside the laboratory. The most important part in the report consists on the description of the three radionuclides to use: {sup 18}F, {sup 11}C and {sup 13}N, as well as the methods for the shielding calculation and for the estimate of the dose equivalent during the normal operation of the equipment. These methods were applied three times, because the calculation was made for each radionuclide. The results of these calculations show that: 1) it not is necessary to have a structural shielding, due to the activity sources very reduced, and 2) the dose limit per year (according to the ICRP-60) it will not be surpassed neither in the case of the occupationally exposed personnel, neither on the public in general. (Author

  8. Surveillance and radiological protection in the Hot Cell laboratory; Vigilancia y proteccion radiologica en el Laboratorio de Celdas Calientes

    Energy Technology Data Exchange (ETDEWEB)

    Ramirez, J.M.; Torre, J. De la; Garcia C, M.A. [ININ, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    2004-07-01

    The Hot Cells Laboratory (LCC) located in the National Institute of Nuclear Research are an installation that was designed for the management at distance of 10,000 Curies of Co-60 or other radioactive materials with different values in activity. The management of such materials in the installation, implies to analyze and to determine the doses that the POE will receive as well as the implementation of protection measures and appropriate radiological safety so that is completed the specified by the ALARA concept. In this work it is carried out an evaluation of the doses to receive for the POE when managing radionuclides with maximum activities that can be allowed in function of the current conditions of the cells and an evaluation of results is made with the program of surveillance and radiological protection implemented for the development of the works that carried out in the installation. (Author)

  9. Training activities in radiation protection and nuclear technology CIEMAT; Acciones formativas en proteccion radiologica y tecnologia nuclear de CIEMAT

    Energy Technology Data Exchange (ETDEWEB)

    Falcon Cabrera, S.; Fernandez Sanchez, J.; Marco Arboli, M.

    2013-07-01

    This work presents the different training activities that are being developed annually according to the demand detected in society, in business or in the national and international organizations involved, as well as the various forms of provision of these services by CIEMAT. (Author)

  10. Radiological quality in drinking water from Granada city; Calidad radiologica del agua potable de la ciudad de Granada

    Energy Technology Data Exchange (ETDEWEB)

    Lopez Penalver, J. J.; Gonzalez Gomez, C.; Ferro Garcia, M. A.; Prados Joya, G.

    2007-07-01

    The purpose of this study is to present data on gross alpha and beta activities in the drinking water from Granada city, during six years, 2000 to 2005. The samples were measured using a gas-flow proportional counter Bert hold LB 770-2/5. The results show that the gross alpha and gross beta cavity is lower than the maximum contaminant level based on the World Health Organisation, who which indicates 0.1 Bq.1-1 and 1.0 Bq.l''-1 as maximum contaminant level of gross alpha and gross beta radioactivity in potable water, respectively. Concentration ranging from 4.1.10''-3 to 3.9.10''2 Bq.l''-1 and from 4.9.10''-3 to 5.6.10''-2 Bq.l''-1 were observed from the gross alpha and beta activities, respectively. An average annual effective dose equivalent of 2.909 {mu}Sv-yr''-1 was obtained together with a range of 0.186 to 0.326 {mu}Sv.mo''-1. (Author) 10 refs.

  11. Radiation protection instrumentation at the Andalusian health service; Instrumentalizacion de la proteccion radiologica en el servicio Andaluz de salud

    Energy Technology Data Exchange (ETDEWEB)

    Herrador Cordoba, M [Servicio de Radiofisica, Hospital Universitario Virgen del Rocio, Sevilla (Spain); Garcia Rotllan, J [Servicios Centrales del Servicio Andaluz de Salud, Sevilla (Spain)

    1997-11-01

    In Andalusia the contributions of radiological risks in the nuclear industry and of natural radiation are small and the same holds for medical applications of individuals and research. The performance models in radiation protection is monitored by the Andalusian Health Service through the public health institutions. This short communication describes the model and results obtained. 3 refs.

  12. Project SIMORAC: a wireless system for radiation monitoring in emergencies; Proyecto SIMORAC: Un sistema inalambrico para monitorizacion radiologica en emergencias

    Energy Technology Data Exchange (ETDEWEB)

    Gomez, D.; Serrano, J. L.; Cabrera, E.; Barbaran, J.; Llopis, L.; Diaz, M.

    2013-07-01

    The SIMORAC project includes a new system for Radiological monitoring using wireless sensor networks (RSIs), without infrastructure planning in emergency situations for a rapidly deployable by air or land, with the aim of providing a tool emergency teams capable of offering a real time x-ray map within the radius of action of an accident. Communication of quality at a great distance, resistance to weather, long autonomy and possibility of aerial deployment are some of the features of SIMORAC.

  13. Proceedings of the Fourth Session of Radioprotection of the patient; Actas de la 4. Jornada de Proteccion Radiologica al Paciente

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-01

    The Radiology Argentine Society and the Radioprotection Argentine Society have organized the 4. Session of the Protection to the Patient, in order to inform to the technical and scientific community about the scopes of the radioprotection to the patient. The principal treated topics were the following: effects of the radiation in radiodiagnostic; radioprotection of the fetus and the pregnancy woman; radioprotection in dental radiology; radiological protection in TAC; radiation doses in radiodiagnostic; treatment of radiation injuries; fatal accidents in radiotherapy. [Spanish] La Sociedad Argentina de Radiologia, y la Sociedad Argentina de Radioproteccion, han organizado la 4ta. Jornada de Proteccion al Paciente, con el objeto de informar a la comunidad cientifico y tecnica sobre los alcances de la radioproteccion al paciente. Los principales temas tratados fueron los siguientes: efectos de la radiacion en radiodiagnostico; radioproteccion del feto y la mujer gestante; radioproteccion en radiologia odontologica; proteccion radioogica en TAC; dosis de radiacion en radiodiagnostico; tratamiento de lesiones por radiacion; accidentes fatales en radioterapia.

  14. Radiological protection in quality control in dental radiology; Proteccion radiologica y control de calidad en radiologia dentaria

    Energy Technology Data Exchange (ETDEWEB)

    Lopez Salaberry, Mirtha [Direccion National de Tecnologia Nuclear, Montevideo (Uruguay)

    1994-06-01

    Many regulations were given in this article about ionizing radiation biological effects in the dental area. With the purpose to find a good dentistry professional reception it presents procedures for the use of X-ray dental equipment.

  15. The musculoskeletal radiologic findings associated with chronic renal insufficiency; Manifestaciones radiologicas musculoesqueleticas de la insuficiencia renal cronica

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz, P J; Gomez, I; Hernandez, L; Relanzon, S; Hurtado, M [Hospital General Universitario Gregorio Maranon, Madrid (Spain)

    1997-10-01

    The numerous musculoskeletal changes associated with chronic renal insufficiency (CRI) are detected with increasing frequency since hemodialysis and kidney transplantation have prolonged the survival of these patients. These signs have been divided into two large groups. The first includes secondary hyperparathyroidism (bone resorption, periostitis and brown tumors), osteoporosis, osteosclerosis, osteomalacia and vascular and soft tissue calcification, all of which are grouped under the term renal osteodystrophy. the second group is composed of miscellaneous disorders including aluminum poisoning, amyloid and crystal deposition, destructive spondyloarthropathy, tendon rupture, infection and avascular necrosis. These changes are less common and occur especially in patients under prolonged hemodialysis or kidney transplant recipients. The detection of musculoskeletal involvement in CRI patients has a considerable impact on their clinical management. The present article reviews the radiological signs of these changes, including representative images that will aid in their recognition. (Author) 33 refs.

  16. The radiological protection in the practice of industrial X-rays; La proteccion radiologica en la practica de radiografia industrial

    Energy Technology Data Exchange (ETDEWEB)

    Jimenez C, I.; Carrasco C, R., E-mail: ijcastro@cnsns.gob.m [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico)

    2010-09-15

    The kindness of this technique of non destructive assays is very appreciative when the protection standards and radiological protection are completed faithfully, this work show in a succinct way the development through the years where have improved the equipment s, the procedures, the training and the regulation. This development has allowed reduce the dose to the occupational exposed personnel, to the public, but mainly the accidents incidence with loss of fingers, hands, legs and worker lives, children and the people in general. (Author)

  17. The radiological protection in the nuclear medicine practice; La proteccion radiologica en la practica de medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Maldonado M, H., E-mail: hmaldonado@cnsns.gob.m [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico)

    2010-09-15

    The nuclear medicine practice dates of the 1950 years, in this work the achievements reached as regards radiological protection are shown, although even lack a lot to make, the doses for the occupationally exposed personnel have decreased with lapsing of the years, thanks to the perception of the nuclear physicians to improve the administration techniques of the radioactive material, the decrease of administered activity and the unit doses use among the most remarkable advances. The changes in the equipment s technology to quantify the activity to administer, detection systems and image formation have demanded the development of the new professionals of the nuclear medicine that allows give protection to the patient. This improvement needs to consolidate with the appropriate normative development, the involved personnel qualification and the methods and procedures actualization to improve the protection of the occupationally exposed personnel, the public, the environment and the patient. (Author)

  18. Use of social networks to improve radiation protection; Uso de las redes sociales para mejorar la proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Medina Gironzini, E.

    2013-07-01

    The development of information and communication technologies has improved relations between the specialists in radiation protection worldwide. Takes advantage of these media to exchange experiences on issues of common interest and technical concerns are resolved in very short times. (Author)

  19. Radiologically detectable musculoskeletal involvement in systemic lupus erythematosus; Afectacion musculoesquelitca con expresion radiologica en el lupus eritematoso sistemico

    Energy Technology Data Exchange (ETDEWEB)

    Jimenez, M. M.; Manjon, P.; Diaz de Bustamante, T.; Galindo, M.; Buj, M. J.; Cabezudo, J. [Hospital Doce de Octubre de Madrid (Spain)

    2000-07-01

    We show a wide spectrum of musculoskeletal involvement in systemic lupus erythematosus (SLE) that can be detected by radiological examination. We determined the indications of different imaging techniques in the diagnosis and follow-up of this disease. We reviewed the clinical and radiological histories of 37 patients diagnosed as having SLE on the basis of serological and musculoskeletal criteria. We assessed the personal data of each patient, the association of the disease with autoimmune processes, serology, treatment and radiological findings using plain X ray, ultrasound, computed tomography (CT) and magnetic resonance (MR). Of the 37 cases reviewed, only ten presented changes in one or more of the imaging studies performed. the most common radiological finding was symmetric poly arthritis located at different sites. Other signs included avascular necrosis (late and early), inflammation and tendon and/or ligament rupture, nonerosive deforming arthropathies , soft tissue calcifications and arthritis (staphylococcal and tuberculous). A direct correlation was established between the anticardiolipin antibody titer, steroid doses and avascular necrosis. In SLE, radiologically detectable osteoarticular lesions are uncommon. Symmetric polyarthritis is the earliest lesion and that occurring most frequently. Other signs do not appear as often, with the exception of osteonecrosis, which usually occurs late. It developed early and was unusually aggressive in two youths with elevated anticardiolipin antibody titers and substantial systemic involvement in our series. The contributions of ultrasound and MR in the assessment of musculoskeletal involvement in SLE are especially relevant in the study of inflammations and tendon rupture and in the management of avascular necrosis, respectively. (Author) 17 refs.

  20. Radiological security of portable equipment used in the industry; Seguridad radiologica de equipos portatiles utilizados en la industria

    Energy Technology Data Exchange (ETDEWEB)

    Cateriano, M.A. [Autoridad Regulatoria Nuclear, Av. Del Libertdor 8250, (C1429BNP), Ciudad Autonoma de Buenos Aires (Argentina)]. e-mail: mcateria@sede.arn.gov.ar

    2006-07-01

    The industrial meters with encapsulated sources are used intensely in the present time due to the economic benefits that generate. Their use in all the one world has been reflected in an improvement of the quality of the analyzed product and of one optimization of the production process, allowing to carry out these measurements and controls without interrupting the process and in non destructive form generating an energy saving in turn and of materials. Although these industrial meters are intrinsically safe for design in the portable meters their safety also is strongly governed in the strict pursuit of procedures and in the adequate personnel's training that operate these equipment. In the Argentine Republic in 2005 the Nuclear Regulatory Authority (RNA) had registered a quantity of 160 portable equipment. In the period 1995-2003, 2 incidents took place with these equipment one of them used to measure soils humidity of Troxler trademark containing a source of Am-241(Be) of 370 MBq and the remaining one also of Troxler trademark used to measure density and humidity of soils containing 2 sources of Cs-137 of 296 MBq and Am-241(Be) of 1.48 GBq respectively. The incidents were developed without relevant radiological implications had taken place. In this work those mentioned incidents are analyzed in order to determining the causes that originated the same ones, for this way to be able to elaborate recommendations with the purpose of to correct errors and to diminish the recurrence probability improving the safety in the use of these equipment. From the analyses of these incidents result that should put on more emphasis in the personnel training and the invigoration of the safety culture in the use of the industrial meters. Also a present panorama of the inventory of equipment, sources and users that possess these portable meters in the Argentine Republic is also presented. (Author)

  1. Digital processing methodology applied to exploring of radiological images; Metodologia de processamento digital aplicada a exploracao de imagens radiologicas

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Cristiane de Queiroz

    2004-07-01

    In this work, digital image processing is applied as a automatic computational method, aimed for exploring of radiological images. It was developed an automatic routine, from the segmentation and post-processing techniques to the radiology images acquired from an arrangement, consisting of a X-ray tube, target and filter of molybdenum, of 0.4 mm and 0.03 mm, respectively, and CCD detector. The efficiency of the methodology developed is showed in this work, through a case study, where internal injuries in mangoes are automatically detected and monitored. This methodology is a possible tool to be introduced in the post-harvest process in packing houses. A dichotomic test was applied to evaluate a efficiency of the method. The results show a success of 87.7% to correct diagnosis and 12.3% to failures to correct diagnosis with a sensibility of 93% and specificity of 80%. (author)

  2. Phyllodes tumor: clinical, radiological and pathological correlation in 50 cases; Tumor filodes: correlacion clinica, radiologica y anatomopatologica en 50 casos

    Energy Technology Data Exchange (ETDEWEB)

    Higueras, A.; Alvarez, M.; Jimenez, A.; Garcia Revillo, J.; Cano, A. [Hospital Universitario Reina Sofia. Cordoba (Spain)

    2000-07-01

    To review the radiological features of the phyllodes tumor, correlating them with the clinical presentation, histological type and response to treatment. Fifty phyllodes tumors in 29 patients aged 16 to 59 years (mean: 41 years) were analyzed retrospectively. The series included 12 cases of recurrence, 1 of bilateral tumor and 6 of multiple tumor. Forty-five lesions were studied by mammography and 36 by ultrasound. Clinically guided fine-needle aspiration cytology was performed in 8 cases. The pathological diagnosis was obtained by means of surgical biopsy in every case (31 benign and 19 malignant). Twenty-four patients underwent postoperative clinical and radiological follow-up for a mean period of 32 months. Mammography revealed the presence of a nodule or mass in 42 cases, asymmetrical density in two and a generalized increase in density in one: Multifocal lesions were detected in six cases. The size varied widely, with masses measuring >5 cm showing a greater probability of malignancy (p<0.01). Calcifications were observed in 13% of the cases. Ultrasound revealed the presence of heterogeneous, hypoechoic nodules, with cystic areas in five tumors, all of which were malignant (p<0.01). Local recurrence was detected in 31% of the cases and bone metastases in one. The phyllodes tumor is an uncommon fibroepithelial tumor that has a potential for recurrence and distant metastasis. Mammographic and ultrasound features are similar to those of the fibroadenoma, a lesion with which it is occasionally associated. Multiple lesions are not infrequent and it can present with calcifications. The presence of cystic areas and a tumor size of >5 cm are the only radiological findings that are statistically associated with malignancy. The recurrence rate is greater in malignant tumors than in benign lesions, especially in patients treated by tumor resection. (Author) 28 refs.

  3. Training in fundamentals of radiological coverage in Laguna Verde NPP; Entrenamiento de fundamentos de coberturas radiologicas en la CLV

    Energy Technology Data Exchange (ETDEWEB)

    Lara H, M. A., E-mail: marcolarah@gmail.com [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km. 42.5, Alto Lucero, Veracruz (Mexico)

    2014-10-15

    In 2010, the Institute of Nuclear Power Operations (INPO) celebrates the Knowledge Transfer and Retention Workshop, an event where nuclear regulators and operators presented the strategies that various NPP to worldwide were implemented to mitigate the consequences of this generational change and take advantage of it, the trend in the presented works was the same: the generational change occurs in a faster way that the transfer of knowledge, the future was already here and many NPP had not been adequately prepared to train its nuclear technicians and engineers in the tasks demanded by the industry of them, so in addition to preparing these workers to forced marches was necessary to establish strategies to retain at more experienced staff in the industry. The Laguna Verde NPP has not been exempt to this process; the preparation of personnel squares to replace those that reaching retirement age in the Comision Federal de Electricidad (CFE) has become extensive in the last five years, sometimes leading to have personnel covering functions without an alternate to the next lower position, the cause? Not enough staff. In the specific case of radiation protection (Rp) the time required for obtaining the status of Rp technician according to the ANSI/ANS 3.1 standard is 2 years, one of the tasks that most occupies part of these two years is training in radiological coverage, this training requires a mix of knowledge and experience, recently one of the concepts used for training in Rp is the evaluation and management of the radiological risk, topic that is considered in this technical work. (Author)

  4. Radiological safety around a Linac of 18 MV; Seguridad radiologica alrededor de un LINAC de 18 MV

    Energy Technology Data Exchange (ETDEWEB)

    Ceron R, P.; Rivera M, T. [IPN, Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada, Calz. Legaria No. 694, Col. Irrigacion, 11500 Mexico D. F. (Mexico); Paredes G, L. [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico); Azorin N, J. [Universidad Autonoma Metropolitana, Unidad Iztapalapa, San Rafael Atlixco No. 186, Col. Vicentina, 09340 Mexico D. F. (Mexico); Sanchez, A. [IPN, Escuela Superior de Fisica y Matematicas, Av. IPN s/n, Edif. 9, Col. San Pedro Zacatenco, 07738 Mexico D. F. (Mexico); Vega C, H. R., E-mail: victceronr@hotmail.com [Universidad Autonoma de Zacatecas, Unidad Academica de Estudios Nucleares, Cipres No. 10, Fracc. La Penuela, 09868 Zacatecas (Mexico)

    2014-10-15

    There are now several neutron detection systems, such as proportional counters based on BF{sub 3}, He{sub 3} and Bonner sphere spectrometers. However, the cost and complexity of the implementation of such systems makes them inaccessible for dosimetry purposes in radiotherapy rooms (Rt) and other facilities with this type of radiation fields. For these reasons the use of a neutron detection system is proposed composed by a paraffin moderator media forming an array 4π (spheres) and several pairs of thermoluminescent dosimeters TLD 600/TLD 700 inside, in order to make useful measurements for radiation protection around high-energy lineal accelerators (Linacs). In the first part of this work the system response when irradiated with a source of Pu Be and their corresponding calibration factor is displayed. In the second part are presented the ambient dose equivalent (H(10)) due to neutrons at various points of a living of Rt with a Linac of 18 MV, which are in the order mSv/Gy by X-ray treatment. The measurements made are similar to those taken in the memories of the accelerator and in previous work for this type of facility. (Author)

  5. Independent auto evaluation of an operative radiological protection program; Autoevaluacion independiente de un programa de proteccion radiologica operativa

    Energy Technology Data Exchange (ETDEWEB)

    Medrano L, M.A.; Rodriguez C, C.C.; Linares R, D.; Zarate M, N.; Zempoalteca B, R. [Gerencia Subsede Sureste Instituto Nacional de Investigaciones Nucleares, 52045 Ocoyoacac, Estado de Mexico (Mexico)]. e-mail: maam@nuclear.inin.mx

    2006-07-01

    The program of operative radiological protection of a nuclear power plant consists of multiple procedures and associate tasks that have as purpose the radiological protection of the workers of the power station. It is for this reason that the constant evaluation of the one it programs it is an important tool in the identification of their weaknesses (and strengths), so they can be assisted appropriately. In this work the main elements of the program of independent auto evaluation of the program of operative radiological protection of the Laguna Verde Central that has been developed and implemented by the National Institute of Nuclear Research are described. (Author)

  6. Radiation protection in occupational exposure to microwave electrotherapy units; Proteccion radiologica en exposicion ocupacional a microondas en unidades de electroterapia

    Energy Technology Data Exchange (ETDEWEB)

    Guardia, V.; Ferrer, S.; Alonso, O.; Almonacid, M.

    2012-07-01

    During the last years, electromagnetic emitters are more and more commonly used for therapeutic treatments in electrotherapy centers. This extended use has caused worries workers, who believe that microwave radiation radiation might have effects similar to those induced by radioactivity, even if the only effects recognised by international regulatory bodies concerning microwave exposure of humans are those of thermal origin. The present study aims to answer the existing concerns about electromagnetic exposure in electrotherapy facilities. After monitoring environmental values in an electrotherapy facility, we conclude that actions must be undertaken in order to reduce the exposure levels, as proposed by the current European guidelines, which should become legally binding for all EU state members within the current year. With the purpose of reducing potential risks of occupational overexposure, we are developing innovative fabrics for microwave shielding. These new materials are able to attenuate 85% of the microwave radiation. As these are light materials, they can be used in all kind of facilities, as wall covers, movable screens or even as personal protection, like lab clothes or gloves. (Author) 6 refs.

  7. An Assessment of the radiological vulnerability for Spanish soils; Estimacion de indices de vulnerabilidad radiologica para los suelos peninsulares espanoles

    Energy Technology Data Exchange (ETDEWEB)

    Trueba, C.; Millan, R.; Schimid, T.; Lago, C.; Gutierrez, J. [Ciemat. Madrid (Spain)

    2000-07-01

    A methodology is presented to assess the radiological vulnerability of soils, based exclusively on their pedagogical properties. The radiological vulnerability defined as the potential capacity of soils to fix or transfer deposited radiocaesium and radiostrontium to plants, is represented in terms of vulnerability indexes. Two pathways are considered, the external irradiation and their transfer through the food chain, where the top horizon and a critical depth of 60 cm is taken into account, respectively, Partial vulnerability indexes are considered for each pathway, which allows a qualitative prediction of the behaviour of the contaminants in soils Global indexes have been obtained as the sum of the partial indexes. The methodology has been applied and validated using a data base consisting of more than 2000 soil profiles selected from all over Spain. This included a pedagogical characterisation and normalisation of the different soil profiles. Results have been obtained for individual soil profiles and with the aid of a GIS, the distribution of the partial and global indexes have been presented for the most representative soil types. (Author)

  8. Technical support and preparations for the response to radiological emergencies; Soporte tecnico y preparativos para la respuesta a emergencias radiologicas

    Energy Technology Data Exchange (ETDEWEB)

    Cardenas H, J; Ramos V, E O; Fernandez G, I M; Capote F, E; Zerquera J, T; Garcia L, O; Lopez B, G; Molina P, D; Lamdrid B, A I; Benitez N, J C; Salgado M, M [CPHR, Calle 20 No. 4113, e/41 y 47 Playa, CP 11300, La Habana (Cuba); Lopez F, Y; Jerez V, P [CNSN, Calle 28 e/5ta y 7ta, Playa, La Habana (Cuba)

    2006-07-01

    The work picks up the efforts directed to elevate the technical capacity of the answer in front of the radiological emergencies. Expressing them by means of the actions carried out as for teaching, research and development and intervention before accidental radiological events. The same one reflects the leading role of the participant institutions in those marks of the answer system to radiological emergencies that for its technical level it satisfies the national and international demands in the matter. In execution of the mentioned goals research projects guided to endow to the national system of methodologies and procedures for the administration of radiological emergencies have been executed that favor the improvement of its technical and organizational capacities. As well as the postulates of the National Plan of Measures for Case of Catastrophes in the corresponding to radiological accidents. (Author)

  9. The recuperation of the irradiators, support of the radiation protection; La recuperacion de los irradiadores, soporte de la proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Lopez Rodriguez, Manuel; Tamayo, Jose Antonio; Gonzalez Rodriguez, Niurka; Villatoro, Mayra; Torres, Alberto; Turruela, Giovany; Gutierrez, Stefan; Vergara, Alex; Acosta, Andy Romero; Chacon, Jorge; Alonso, Gilberto; Ferrera, Eduardo Capote, E-mail: manolo@cphr.edu.cu, E-mail: jotag@cphr.edu.cu, E-mail: niurka@cphr.edu.cu, E-mail: jefelab@mem.gob.gt, E-mail: stefan@cphr.edu.cu, E-mail: alex@cphr.edu.cu, E-mail: andy@cphr.edu.cu, E-mail: jorgechacon@hotmail.com, E-mail: s, E-mail: gilberto@cphr.edu.cu, E-mail: capote@cphr.edu.cu [Centro de Proteccion e Higiene de las Radiaciones (CPHR), La Habana (Cuba). Servicios Electronicos

    2013-07-01

    Recovery of irradiators extend its life and avoid new spending on equipment purchases. Aged technique can still work effectively if it can do the maintenance, rather than a routine, a key priority. In this paper is presented the need of training of new specialists who join secondary laboratories, as well as other less new that did not have the opportunity of specialized training. Advanced knowledge are offered on: security measures to work with irradiators, hot spots that cause breaks in the control panel more frequently, as well as repair and maintenance are reported. It describes how to recover the solenoid with high quality assurance and minimal resources, change font, etc. All have empirical knowledge base.

  10. Importance of the lower limit of detection in radiological safety; Importancia del limite inferior de deteccion en seguridad radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Rafael, Terol T; Hermenegildo, Maldonado M [Comision Nacional de Seguridad Nuclear y Salvaguardias (Mexico)

    1991-07-01

    The concept of the Lower Limit of Detection (LLD) it contributes in the solution of some problems related with the radiological safety, such as the realization of the tests of flight of the sealed radioactive sources; the determination of radioisotopes in environmental samples; the estimate of present radionuclides in polluted foods; in general, the detection of small quantities of radioactive materials present in materials of use or consumption by part of the man in his daily life; as the one Lower Limit of Detection is related with topics of statistics, in this work a small review of them is made, it was superficially discussed the mensuration problems related with the establishment of the Lower Limit of Detection.

  11. Information systems in radiation protection: the INIS database; Sistemas de informacion en proteccion radiologica: la base de datos INIS

    Energy Technology Data Exchange (ETDEWEB)

    Alberdi Larranaga, I.; Marco Arboli, M.

    2011-07-01

    INIS provides a comprehensive service references on literature information on radiation protection (RP), nuclear science and technology, medicine, etc.., Processing most of the world's scientific and technical literature in the area to meet the information needs international community in the areas of interest of the IAEA and the activities related to peaceful use of nuclear science and technology.

  12. The radiological protection in technical-professional level in Mexico; La proteccion radiologica a nivel profesional-tecnico en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Vizuet Gonzalez, Jorge; Suarez, Gerardo [Instituto Nacional de Investigaciones Nucleares (ININ), Mexico (Mexico). Dept. de Proteccion Radiologica; Corona Montes de Oca, Julia [Centro de Bachillerato Tecnologico ' Justo Sierra' , San Mateo Atenco (Mexico)

    2005-07-01

    This work describes the work done in the implementation of an educational project which aims the formation of technical-professional in radiation protection (RP) with official recognition in Mexico. The constant growth of business activities related to the use of radioactive material in industry, medicine and research has required the development and implementation of standardization by the regulatory authorities of our country. However the advance with regards to training of specialized personnel is reduced in comparison to current needs. in our country there is no technical personnel with studies recognised by the regulatory body in this specialty (RP), however quality assurance programs currently require an educational training that will help to meet the standards in the various activities that develop in the use and handling of sources and ionizing radiation generating equipment, reason why it was developed and implemented this educational project. Additionally induce and promote the need for the peaceful use of nuclear energy and ionizing radiation, at the national level is one more reason to implement the programme at upper secondary level, with the purpose to have knowledge related to the topic. The technical course has a duration of six semesters (three years), and currently there are two generations of graduating. The plan of study consists of the required disciplines for upper secondary level more plus those corresponding to technological training in radiological protection.

  13. National Programme for Radiological Protection in Medical Exposures; Programa nacional de Proteccion radiologica en las exposiciones medicas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-07-15

    A national programme on radiation protection of patients can only be effective and sustainable if there is a joint effort between the regulatory body and the health authorities, and a cooperation with educational institutions, professional bodies and representatives of the industry. The regulatory body needs to promote a strategy of cooperation, and to identify obstacles that may prevent compliance with regulatory requirements and to address them. Not of least is the need for a continuous self-evaluation on the efficacy of the programme. Radiation safety of the patients is a responsibility of the users of the radiation sources involved in diagnostic and treatment. In particular, they are responsible for compliance with regulatory requirements. But safety depends also on aspects that are beyond the capabilities of those authorized to conduct practices. These aspects include educational programmes and institutions to implement them, calibration facilities, national protocols, professional bodies for the establishment of reference levels and contributions from the industry. Neither the users nor the regulatory body alone can achieve that these elements are in place. It needs a network of institutions and cooperation arrangements that involve educational and health authorities, laboratory facilities, professional bodies and the industry. A national programme has to include a strategy of cooperation, identification of obstacles that may prevent compliance with regulatory requirements and address them. Not of least is the need for a continuous self-evaluation on the efficacy of the programme. A group of regulatory agencies belonging to the Ibero American Forum of Nuclear and Radiation Regulatory Agency have exchanged experiences, lessons learned and good practices over three years. This exchange included extensive collaboration with the health authorities. The result of this work is this document containing a self-evaluation approach for the regulatory programme on radiation protection and safety in medical exposure.

  14. Preliminary report of radiological safety to hydrology 1993 campaign; Informe preliminar de seguridad radiologica para la campana de hidrologia 1993

    Energy Technology Data Exchange (ETDEWEB)

    Badano, A; Suarez Antola, R; Dellepere, A; Barreiro, M [MIEM, Direccion Nacional de Tecnologia Nuclear, Montevideo (Uruguay)

    1993-07-01

    This report has been prepared based on the interaction between project managers and division radiological Protection and Nuclear Safety. In seeking to establish a basis for approval from the point of view of radiation safety practices . The idea for the audit has been provided at all times because the interest was the exchange of ideas and the use of common sense to improve the safety of radioactive substances, security of operators and public safety and environment.The above shows that in the planned radiation safety condition described in this report,the practice can be carried out according to the criteria of safety accepted .

  15. Design considerations for pressure surge protection for marine terminals, based on real case; Consideracoes de projeto para sistemas de protecao contra surtos de pressao em terminais maritimos existentes, a partir de caso real

    Energy Technology Data Exchange (ETDEWEB)

    Allevato, Monica; Miranda, Jades Marques de [PETROBRAS, Rio de Janeiro, RJ (Brazil); Paula, Jair dos Santos de [PETROBRAS Transporte S.A. (TRANSPETRO), Rio de Janeiro, RJ (Brazil)

    2005-07-01

    Upon the increasing of liquid pumping capacity in maritime terminals and with the developing of quick blockage systems in hydrocarbon ship tankers, is also high the concern with the event of a surge pressure that could result in risky situations, with possible financial damages and environmental accidents of large proportions. On this scenario, the design of hydraulic transient anti-surge systems during crude oil and its products loading or offloading in terminal and tankers, is very important and it involves much more than simple numerical simulation or direct application of theory that takes into account only hydraulic aspects of the system, depending on solid design basis, on practical experience for design and operations and on the knowledge of experts in the field. This paper presents a quick historical background of the national installations, and discuss the main steps for designing hydraulic transient safety systems, taking into account an existing system as guideline for the particularities during the field collection data, the simplification for a representative and efficient numerical modeling and definition of design criteria. This paper discuss also, some of the restrictions of available protection equipment, when applied to existing maritime terminals. (author)

  16. Lowering of pipeline in the Peloneas's Beach and mechanical protection of pipeline in main and secondary piers; Rebaixamento de dutos na Praia das Peloneas e protecao mecanica de dutos nos piers principal e secundario

    Energy Technology Data Exchange (ETDEWEB)

    Teixeira, Ana Paula da Silva M.; Basilio, Kenia Afonso [PLANAVE, Rio de Janeiro, RJ (Brazil)

    2003-07-01

    The growing concern of PETROBRAS with the environmental protection aspects is intimately related with the need of developing preventive works of protection to the pipelines of the company. A study was accomplished in the pipelines inside the Guanabara Bay, whose goals was divided in three parts: identification of the risk areas for the pipelines; determination of the minimum depth of burying of the pipelines so that the risk in appreciation is minimized; identification of the areas in that the burying or a complemental burying make herself necessary. The study went based on to theory of conservation of energy, being admitted the non preservative embarkation system, and in the theory of the elasticity. For such a commercial program of finite elements was used. With base in the limits foreseen in the study, two critical areas of the Guanabara Bay were considered, which already suffered intervention with lowering. (author)

  17. Radiation beans characterization and implantation for study of lead equivalent individual protection device used in radiodiagnostic practices; Caracterizacao e implantacao de feixes de radiacao para estudo de dispositivos de protecao individual com equivalencia em chumbo utilizados em praticas de radiodiagnostico

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Leslie Silva

    2004-07-01

    The protective shielding (IPC) must be used by occupationally exposed professionals, patients and volunteers, in order to optimize the doses who receive due to radiological practices. International and national norms establish the methodology to be adopted for determination of the IPC attenuation. In this work, the IPC had been submitted to X-rays beams with known characteristics, standardized for determination of their attenuation equivalent thickness by comparison to an experimental lead attenuation slope. This comparison technique allowed insurance estimative of the IPC attenuation equivalent thickness in mm of lead. Thus, it was possible to verify the conformity of the attenuation equivalent thickness determined experimentally and the value of the thickness indicated by the manufacturer. To carry out this work, it was necessary the implementation of experimental setups stated in the specifics norms, the study of the X-rays beams original features and the determination of combined additional filters, in order to allow the X-ray equipment used operates in compliance with Norm IEC 61331-1 IEC. The radiation quality selected is characterized by a 100 kV voltage and a 0.25 mm of copper overall filtration. The implementation of this radiation quality it was carried through of its first and second HVL (Half Value Layer). Thus, a methodology according to the international Norms has been implemented in the laboratory. The results of the present work provide suitable and useful information about radiation beams features related to the determination techniques of the attenuation properties. Once implemented the procedures for conformity evaluation of the protection devices, it will be possible to carry out specific quality control tests, which will be helpful to manufacturers, customers, as well as authorities in the radiological protection and health areas. (author)

  18. Fire protection system management in nuclear facilities: strengthening factor of integrated management system - a case study; Gestao de sistema de protecao contra incendio em instalacoes nucleares: fator de fortalecimento do sistema de gestao integrada - um estudo de caso

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Joao Regis dos

    2005-07-01

    The present study investigated and analyzed the importance of a system of integrated safety manage, environment and health in a nuclear installation, having as perspective, the fire protection manage. The inquiry was made using a qualitative research involving a case study, where the considered environment was the Reconversion and UO{sub 2} Plant of the Industrias Nucleares do Brasil (INB), located in Resende, Rio de Janeiro and the studied population, the managers and the staff directly involved with the aspects related to the safety of the industrial complex of the related company. The motivation for the research was the search of a bigger interaction of the questions related to the safety, environment and health in the nuclear industry having, as axle of the investigation, the fire protection. As a result, it was observed that in a nuclear installation, although dealing with diversified safety processes, integration is possible and necessary, since there are more reasons for integration than otherwise. (author)

  19. Development of a protection system for research reactor based in Field Programmable Gate Array - FPGA; Desenvolvimento de sistema de protecao para reator nuclear de pesquisa baseado em Field Programmable Gate Array - FPGA

    Energy Technology Data Exchange (ETDEWEB)

    Martins, Roque Hudson da Silva

    2016-07-01

    This study presents a implementation purpose of a protection system for research nuclear reactors by using a programed device FPGA (Field Programmable Gate Array). As well as logic protection method involved on an automatic shutdown (TRIP) of a reactor, that ensure the security on such systems. These new control and operation mechanics are developed to guarantee that the security limits of a power plant are not exceeded, these mechanics can work isolated or in groups to safe guard the security levels. For this implementation to be completed, there will be presented the main aspects and concepts referred to protection systems, mostly about research nuclear reactors, with some applications terms exposed. The system proposed at this paper was developed following the VHDL (Very High Speed Integrated Circuits) hardware describing language, and the Modelsim software from Altera Software to program the automatic turning off routines, and hypothetical simulations for such. The results show that for every software application for supporting nuclear reactors, like security devices, they have to meet the IEC 60880 criteria. This paper have great importance, seeing that nuclear reactor security systems, are a basic element for ensure the reactor security. (author)

  20. The implementation and evaluation of physical protection system of the IEA-R1 reactor; Implementacao e avaliacao do sistema de protecao fisica do reator IEA-R1

    Energy Technology Data Exchange (ETDEWEB)

    Vaz, Antonio Carlos Alves

    2016-11-01

    The September 11, 2001 terrorist attacks in New York, the accident at the Fukushima nuclear power plant on March 2011 and the recent attacks in Paris on November 2015 are examples of events that justify the efforts of the International Agency of Energy Atomic - IAEA to improve security at nuclear facility. The Brazilian government has been collaborating with this project and investing resources to improve the Physical Protection System - PPS of the nuclear research reactor system, technically is associated with the elements of detection, delay and response. The PPS is an integrated system of people, equipment and procedures used to protect nuclear facilities and radioactive sources against threat, theft or sabotage. The PPS works to avoid, to mitigate or to minimize the consequences caused by these actions. This study evaluates the PPS of the reactor, identifying the vulnerabilities and suggesting ways to improve the system effectiveness. The analyses were based on the methodology developed by Sandia National Laboratories´ security experts in Albuquerque - USA, allowing the system evaluation through hypothetical and probabilistic analyzes; identifying threats, determining the targets and analyzing the possible adversaries paths. From the methodology adopted was obtained the value around 40% for PE indicator, which shows the need to improve the system to minimizing the vulnerabilities. (author)

  1. Simulator protection, control and supervision systems: a tool for empowerment of operation and maintenance; Simulador de sistemas de protecao, controle e supervisao: uma ferramenta para capacitacao da operacao e manutencao

    Energy Technology Data Exchange (ETDEWEB)

    Moutinho, J.A.P. [Centrais Eletricas do Norte do Brasil S.A. (ELETRONORTE), Belem, PA (Brazil). Regional de Transmissao do Para. Div. de Engenharia de Automacao, Protecao e Medicao], E-mail: beck@eln.gov.br

    2009-07-01

    The use of digital technology in protection, control and supervision equipment has resulted in the electricity sector companies, new behavior in electrical management systems given his versatility in the implementation of protection system as well as cost reduction in traffic information of power equipment to the man-machine interfaces (MMI) to the system operator. With the capabilities of digital technology it is possible provide simulated systems to allow the training of operations teams of the system, providing resources for development for engineers and maintenance technicians, and above all offer platform for analysis of events in the electrical system. This paper presents the development of a simulator protective relays, control and supervision applied to ELETRONORTE substations. The simulator of protective relays, control and supervision consists of information reproduction in the operator's MMI of the electrical system originated in the units of protection, control and supervision. This information is developed from a software that has the same communication protocol with the original units.

  2. Remote monitoring of cathodic protection rectifiers of the Bolivia-Brazil Gas Pipeline using low orbit satellite telephone; Monitoracao remota de retificadores de protecao catodica do Gasoduto Bolivia-Brasil utilizando telefone via satelite de baixa orbita

    Energy Technology Data Exchange (ETDEWEB)

    Coelho, Jorge Fernando Pereira [TBG - Transportadora Brasileira Gasoduto Bolivia Brasil S.A., Rio de Janeiro, RJ (Brazil)

    2003-07-01

    The present paper has for objective to present the information collected during definitions, development, implementation, testing and operation phases of the Pilot System for monitoring of the Cathodic Protection Rectifiers MS-10 and SP-09, installed on the Bolivia-Brazil Gas Pipeline. The adopted solution for the Pilot System includes, basically, communication through low-earth satellite telephone, inter linked to the public telephone net, acquisition and data transmission system (Remote Terminal Unit) and data reception in the Supervision and Control Room. (author)

  3. A study of digital hardware architectures for nuclear reactors protection systems applications - reliability and safety analysis methods; Um estudo de arquiteturas de hardware para aplicacao em sistemas digitais de protecao de reatores nucleares - metodos de analise de confiabilidade e seguranca

    Energy Technology Data Exchange (ETDEWEB)

    Benko, Pedro Luiz

    1997-07-01

    A study of digital hardware architectures, including experience in many countries, topologies and solutions to interface circuits for protection systems of nuclear reactors is presented. Methods for developing digital systems architectures based on fault tolerant and safety requirements is proposed. Directives for assessing such conditions are suggested. Techniques and the most common tools employed in reliability, safety evaluation and modeling of hardware architectures is also presented. Markov chain modeling is used to evaluate the reliability of redundant architectures. In order to estimate software quality, several mechanisms to be used in design, specification, and validation and verification (V and V) procedures are suggested. A digital protection system architecture has been analyzed as a case study. (author)

  4. Recovery of the external anticorrosion protection systems of onshore pipelines - evaluation methods and practical results; Recuperacao de sistemas de protecao anticorrosiva externa de dutos terrestres - metodos de avaliacao e resultados praticos

    Energy Technology Data Exchange (ETDEWEB)

    Castinheiras, Wilson; Koebsch, Andre; Silva, Flavio A. da [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2003-07-01

    The rehabilitation of an old pipeline means to increase its lifetime, making it safety to operate in the necessaries conditions to transport the product. The pipe steel wall evaluation, related to it thickness reduction, due to, basically, internal and external corrosion, is fundamental to guide its rehabilitation. The techniques used to this evaluation are 'pig' and specials field survey. These last surveys are realized over the soil surface (digs is not necessary to access the pipeline or the pipeline operation is not necessary to stop) and objective to verify the pipeline coating and Cathodic Protection System conditions. Due to the actual authors experience, this paper will only treat of the Rehabilitation of the External Anti corrosive Protection System (coating and cathodic protection) of onshore pipelines. This paper present the techniques current attenuation, ON-OFF pipe-to-soil potential close interval survey and DCVG and same practical results obtained with the application of these techniques on the Sergipe/Bahia gas pipeline. (author)

  5. Predictive Value of Scintigraphy with Tc-99M IOR CEA1 in Asymptomatic Patients with Suspected Recurrent Colorectal Cancer; Valor predictivo de la gammagrafia con Tc-99M IOR CEA1 en pacientes asintomaticos con sospecha de cancer colorrectal recurrente

    Energy Technology Data Exchange (ETDEWEB)

    Llamas Olier, A; De los Reyes, A [Grupo de Medicina Nuclear, Instituto Nacional de Cancerologia, Bogota (Colombia)

    2008-07-15

    The early location of recurrent colorectal cancer can make timely interventions to improve patient survival. The immunoscintigraphy with the monoclonal antibody ior-CEA1 has shown useful for detecting tumors with expression of carcinoembryonic antigen (CEA). This study was done to evaluate their predictive value in asymptomatic patients with unexplained elevations of CEA in blood or suspicious or indeterminate findings on radiological images [Spanish] Objetivos: La localizacion temprana del cancer colorrectal recurrente permite hacer intervenciones oportunas para mejorar la supervivencia de los pacientes. La inmunogammagrafia con el anticuerpo monoclonal ior-CEA1 ha demostrado tener utilidad para detectar tumores con expresion de antigeno carcinoembrionario (ACE). Este estudio se hizo para evaluar su valor predictivo en pacientes asintomaticos con elevaciones inexplicables del ACE en sangre o con hallazgos sospechosos o indeterminados en las imagenes radiologicas. Diseno: se realizo la inmunogammagrafia en todos los pacientes que consultaron al servicio de gastroenterologia: asintomaticos, con sospecha de recaida de carcinoma colorrectal. Se interpreto el estudio y se realizaron varios analisis en el tiempo hasta completar criterios de seguimiento (6-12 meses despues del informe gammagrafico). Pacientes: entre junio de 1998 y julio de 2003 se estudiaron 30 pacientes (17 mujeres y 13 hombres) la mediana de edad + DS, 59+16 anos; con sospecha de cancer colorrectal recurrente por elevacion del ACE en sangre (n=27, rango: 5,2 - 357 ng/ml y mediana + DS: 13,4 + 80 ng/ml) o por hallazgos escanograficos inciertos (n=3). Todos fueron tratados inicialmente con cirugia y 19 recibieron tratamientos adyuvantes. Doce casos fueron estadificados como Dukes B y 18 como Dukes C. Intervenciones: la confirmacion del diagnostico final se hizo con criterios anatomo-patologicos o radiologicos y segun el seguimiento clinico a 1 ano. V einte horas despues de la administracion intravenosa

  6. Radiological features of Lemierre's syndrome: A case report; Manifestaciones radiologicas del sindrome de Lemierre: a proposito de un caso

    Energy Technology Data Exchange (ETDEWEB)

    Tapia-Vine, M. M.; Gonzalez-Garcia, B.; Bustos, A.; Cabello, J. [Hospital Clinico San Carlos. Madrid (Spain)

    2001-07-01

    Lemierre's syndrome is a type of sepsis caused by anaerobes that is secondary to a pharyngotonsillar infection complicated by suppurative thrombophlebitis of ipsilateral jugular vein and septic emboli. Imaging studies are valuable tools for confirming the diagnosis. Chest x-ray reveals poorly defined cavitated, peripheral, nodular lesions. computed tomography (CT) is useful in confirming the pulmonary lesions, which are suggestive of septic emboli. Doppler ultrasound of the neck plays and indispensable role in demonstrating the internal jugular vein thrombosis. We report the case of patient who presented the characteristic clinical and radiological features of Lemierre's syndrome. (Author) 17 refs.

  7. Aspects of radiological protection on industrial irradiators, design and main uses; Aspectos de seguridad radiologica en irradiadores industriales disenos y principales usos

    Energy Technology Data Exchange (ETDEWEB)

    Peregrina M, A; Martinez A, C [Comision Nacional de Seguridad Nuclear y Salvaguardias, Col. Florida, Mexico, D.F. (Mexico)

    1991-07-01

    The governments of different countries among them Mexico are regulating the use of the gamma irradiation like alternative method for the food conservation, that which implies the use of a radioactive facility with specifications of radiological and physical safety that allow the secure use of the used radioactive material, of there the inquietude of the presentation of this topic.

  8. Experience of the Argentine Radioprotection Society in training in radiological protection; Experiencia de la Sociedad Argentina de radioproteccion en capacitacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Bomben, A M [Sociedad Argentina de Radioproteccion (SAR), Av. del Libertador 8250 of. 122, (1429), Buenos Aires (Argentina)

    2006-07-01

    From its creation in 1967, the Argentine Radioprotection Society (SAR) has as basic purpose promoting all the aspects related with the radiological protection and the nuclear safety. Due to the great increment in the use of radioactive sources in diverse areas, soon it was evident for the SAR the importance and necessity to promote the knowledge of the radioprotection approaches between the users of radioactive sources and ionizing radiations in all its application fields, be these industrial, academic or doctors. From the year 2000, the SAR comes organizing in regular and periodical form basic and specialized courses about radiological safety of radioactive sources for industrial use and profile of oil wells, among others. In this work, the characteristics of the different dictated courses are described whose programs have been developed keeping in mind the requirements of the competent authorities of Argentina. Also, statistical information on the dictated courses and its participants is presented. The number of dictated courses was incremented from 6 (year 2000) up to 16 (year 2005), being also increased significantly the number of participants for course. The dictated courses are theoretical-practical, with a duration average of 20 hs. The educational body is constituted by specialists in the different topics with recognized experience. Its given to the participants notes and support material, as well as copies of the material presented to develop the course. When concluding the courses, its deliver to the participants certifies of attendance and/or approval, as it corresponds. In their headquarters the SAR has didactic facilities and specific equipment for the dictation of the courses. Also accounts with the easiness of dictating those courses outside of their headquarters. This is particularly advantageous for companies or organizations that are seated in points far from the main cities and they should qualify in radiological safety to the personnel but, by operative reasons, this cannot leave its work place during several days. Based on its ining experience the SAR proposes that to be considered a priority the inclusion of a module on radiological protection in the programs of grade of the scientific careers of university level with the purpose of generating conscience about the importance of the radiological protection. (Author)

  9. Parameter calculation tool for the application of radiological dose projection codes; Herramienta de calculo de parametros para la aplicacion de codigos de proyeccion de dosis radiologicas

    Energy Technology Data Exchange (ETDEWEB)

    Galindo G, I. F.; Vergara del C, J. A.; Galvan A, S. J. [Instituto Nacional de Electricidad y Energias Limpias, Reforma 113, Col. Palmira, 62490 Cuernavaca, Morelos (Mexico); Tijerina S, F., E-mail: francisco.tijerina@cfe.gob.mx [CFE, Central Nucleoelectrica Laguna Verde, Carretera Federal Cardel-Nautla Km 42.5, 91476 Municipio Alto Lucero, Veracruz (Mexico)

    2016-09-15

    The use of specialized codes to estimate the radiation dose projection to an emergency postulated event at a nuclear power plant requires that certain plant data be available according to the event being simulated. The calculation of the possible radiological release is the critical activity to carry out the emergency actions. However, not all of the plant data required are obtained directly from the plant but need to be calculated. In this paper we present a computational tool that calculates the plant data required to use the radiological dose estimation codes. The tool provides the required information when there is a gas emergency venting event in the primary containment atmosphere, whether well or dry well and also calculates the time in which the spent fuel pool would be discovered in the event of a leak of water on some of the walls or floor of the pool. The tool developed has mathematical models for the processes involved such as: compressible flow in pipes considering area change and for constant area, taking into account the effects of friction and for the case of the spent fuel pool hydraulic models to calculate the time in which a container is emptied. The models implemented in the tool are validated with data from the literature for simulated cases. The results with the tool are very similar to those of reference. This tool will also be very supportive so that in postulated emergency cases can use the radiological dose estimation codes to adequately and efficiently determine the actions to be taken in a way that affects as little as possible. (Author)

  10. Development of a management system of radiological safety with application to hospitals; Desarrollo de un sistema de gestion de seguridad radiologica con aplicacion a hospitales

    Energy Technology Data Exchange (ETDEWEB)

    Velazquez M, J.D.; Rivera M, T. [CICATA, IPN, Av. Legaria 694, 11500 Mexico D.F. (Mexico); Santos R, J.R. [SEPI, ESIME, IPN, 07738 Mexico D.F. (Mexico)

    2008-07-01

    The medicine is the area that more it has benefited with the implementation of the radiation. However, a great number of incidents/accidents they have happened in hospitals in recent years. The above-mentioned stands out the necessity to improve the acting of the radiological safety management systems in Hospitals. This work presents a Management System of Radiological Safety (SGSR). The SGSR has as fundamental objective the one of maintaining the radiological risks inside acceptable levels. The SGSR is generic and it can be applied in the nuclear medicine, radiodiagnostic, radiotherapy, and in other areas of the health sector where it is required to prevent accidents or incidents that affect the health or the well-being of the worker or user. Also it was diagnosed a Specialties Hospital of the Mexico City using some characteristics of the SGSR. The obtained results show that the SGSR can contribute significantly in the improvement of the quality of the service in the attention to the patients and in the radiological safety. (Author)

  11. Monitors display of radiological images: quality control and response of the observer; Monitores de visualizacion de imagenes radiologicas: control de calidad y respuesta del observador

    Energy Technology Data Exchange (ETDEWEB)

    Cesares Magaz, O.; Catalan Acosta, A.; Hernandez Armas, O. C.; Gonzalez Martin, A. E.; Hernandez Armas, J.

    2011-07-01

    This thesis is aimed to determine the possible change experienced by a human reader response to the qualification of a test image on a monitor diagnostic radiographic image when observed before and after calibration of the monitor following the provisions of the AAPM TG18 protocol. It also quantified the change experienced by the monitor as a result of the calibration, by measuring the luminance response as set out in the protocol.

  12. The radiological safety in the petroleum industry. The behavior toward the prevention; La seguridad radiologica en la industria del petroleo. La conducta hacia la prevencion

    Energy Technology Data Exchange (ETDEWEB)

    Adrian T, W. [Autoridad Regulatoria Nuclear, Subgerencia Control de Instalaciones Radiactivas Clase II y III, Av. del Libertador 8250, Ciudad de Buenos Aires (C1429BNP) (Argentina)]. e-mail: wtruppa@sede.arn.gov.ar

    2006-07-01

    Inside the mark of the regulatory control it takes a preponderant place the control of sealed and open radioactive sources, in oil applications. In this task, the handling of the radioactive sources, the demand of the use of written procedures and the training, they are only some examples, of all those that conform the regulatory control. Among these topics they stand out a series of aspects divided in three big groups: operative radiological safety in the base, in the transport and in the task properly said. Given the great quantity of aspects that should be kept in mind, as well as the integration of all the control processes should be included strongly, aspects of safety and quality culture, and to introduce improvements as for the prevention refers, to correct deviations and remoteness that can be produced, avoiding like this, situations of radiological risk, emphasizing aspects of perception of the risk, training in attitudes, the implementation of audits and verifications of the safety level of the installation and the pursuit and control of the tasks that involve the manipulation of radioactive material, which are described in this work. (Author)

  13. New technologies, virtual reality and multimedia, in Radiation Protection training; Nuevas tecnologias, realidad virtual y multimedia, aplicadaas a la formacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Felipe, A.; Sanchez-Mayoral, M. L.; Lamela, B.; Merino, A.; Sarti, F.

    2003-07-01

    Iberdrola Ingenieria y Consultoria (Iberinco) has developed some computer applications based in New Technologies, Virtual Reality and Multimedia, with the aim to optimise the formation and training of professionally exposed workers as well as to inform the public. The use of the new technologies could be an important help for the workers training. Virtual Reality Projects developed by Iberinco are: a) CIPRES: Interactive Calculations of Radiological Protection in a Simulation Environmental and, b) ACEWO: Workers Control Access to Nuclear Power Plants, virtual Reality could be directly applicable to several aspects related with Radiological Protection Training, for example. An application that workers could used to learn the main aspects of Radiological Protection related with: a) Physical concepts, b) Regulations, c) Use of protective clothing, d) Access into and exit out controlled areas, e) ALARA criterion. An examples is the project ACEWO. A training program based on Virtual Reality systems with simulations of procedures in which the operators could receive high doses. In this way, the operation time and dose could be minimised according to the ALARA criterion owing to the ability of repeating the exercise, or the work, as many times as be necessary, like project CIPRES. Iberinco has been developed an educational CD multimedia on nuclear energy and the protection measures foreseen in the emergency plans for the Spanish Civil Protection Agency, with the aim of being distributed to all the schools placed near a nuclear power plant. (Author) 4 refs.

  14. Development of an informative system on aspects of radiological protection in the medical practices; Desarrollo de un sistema informativo sobre aspectos de proteccion radiologica en las practicas medicas

    Energy Technology Data Exchange (ETDEWEB)

    Lopez B, G.M.; Martinez G, A.; Gonzalez R, N.; Hernandez A, R.; Valdes R, M.; Cardenas H, J.; Zaldivar H, W. [CPHR, Calle 20 No. 4113 e/41 y 47, Playa C.P. 11300 La Habana (Cuba); Diaz B, M.; Machado T, A. [Centro Nacional de Seguridad Nuclear, Ciudad de la Habana (Cuba)]. e-mail: gladys@cphr.edu.cu

    2006-07-01

    Today in day is difficult to imagine the development of the medical practices in the diagnosis and treatment of diverse illnesses without the use of the ionizing radiations. In spite of the diffusion and application of these practices, the patients and the public in general don't have full conscience of like the procedures are carried out and the risks that these involve. For it diverse international and national organizations in the last years recommend to include in the programs of radiological protection, all the information that should be given to the patients and the one public that attend as users to the medical institutions to undergo to procedures that imply the use of the ionizing radiations. In Cuba a growing and quick tendency exists to the introduction of nuclear techniques for medical ends, however paradoxically the relative aspects to the communication to the patients and the public in general about the risks of the procedures to that they will be subjected and in consequence on the measures to minimize them is not adequate. Keeping in mind the above-mentioned, specialists of national centers linked to the control and consultant ship in the topics of radiological protection in the medical practices that use ionizing radiations, they worked in the country in the design of an information system that should contribute to elevate the population's culture before the mentioned aspects. The present work describes the structure of this system in function of the different medical attention levels of our national health system. Additionally it exposes the development of a package of varied informative and training tools among those that are folding, posters, guides, instructions, CD Show that its approach general and specific aspects of the uses and risks of medical practices in nuclear medicine, radiodiagnostic and radiotherapy directed so much to health professionals, patients as public in general. (Author)

  15. Application of Moodle Platformer for training of radiation protection in medicine; Aplicacion de la Plataforma Moodle en la docencia de la proteccion radiologica en medicina

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz-Cruces, R.; Perez, M.; Pastor, J. M.; Pena, L. de la; Perez, A.

    2006-07-01

    A virtual campus, which web address is http://campus virtual.cv.uma.es/, has been created at the University of Malaga. This web site is based on the Moodle Platformer. It consists on a software system designed to help the teacher to create online teaching easily. The main aim of this work is to evaluate the acceptance of this tool by the students, and to compare its utilization with the grades obtained in the Final Exam of June by these students. The whole entrances in the site of the 145 participating students registered trough the course are 7671, which supposes an average of nearly 53 entrances per year per student. The 11.04% of the students have never entered in this site. The students who have obtained the best grades are the ones who have used more this teaching tool. These tools based on new technologies will be a very important support for radiological protection training, which is recommended by International Organizations (EC Report R116 and IAEA Action Plan 2002-2006). (Author)

  16. Radiation Protection Training in Spanish schools of medicine; Analisis de la docencia pregrado de la proteccion radiologica en la licenciatura de medicina en Espana

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz-Cruces, R.; Perez Martinez, M.; Vano, E.; Hernandez Armas, J.; Diez de los Rios Delgado, A.

    2003-07-01

    Radiation Protection should be included in the programme of studies necessary to confer a bachelor's degree in Medicine, according to the Directive 97/43 Euratom on medical exposures and the Report RP116 published by the European commission on Education and Training in radiation protection for medical exposures. To analyse the present training programmes in radiation protection at the Medical School in different Spanish Universities. The syllabus and the contents of the subjects including radiation protection issues in 27 Spanish Schools of Medicine have been revised. Radiation protection subjects are obligatory at present, only at the Schools of Medicine from Cantabria and Malaga. There is a group of Schools of Medicine where radiation protection is an optional matter with an extension of 4,5 credits (45 hours). It also exists some topics in radiation protection in subjects dealing with Medical Physics and General Radiology (with a range value from 1 to 10 hours), in 10 Schools of Medicine. A wide dispersion among the contents of different subjects and the hours of training allocated by the different School are found. It should be useful the harmonization of the programmes. (Author)

  17. Training Programs on Radiological Safety for users of Ionizing Radiations in Peru; Programas de formacion en proteccion radiologica para usuarios de radiaciones ionizantes en el Peru

    Energy Technology Data Exchange (ETDEWEB)

    Medina Gironzini, E.

    2003-07-01

    In Peru, people who work with ionizing radiations must have an authorization (Individual License) as established in the Radiological Safety Regulations, which are the mandatory rules. The Technical Office of the National Authority (OTAN), which is the technical organ of the Peruvian Institute of Nuclear Energy (IPEN) in charge of controlling radiations within the country, grants the authorization after the candidate demonstrates that he/she knows the specific use of the technique using radiations, as well as the aspects related to safety and radiological protection. Since it was created in 1972, the Superior Center of Nuclear Studies (VSEN) from IPEN has carried out different training courses so that people can work safety with ionizing radiations in medicine, industry and investigation. The analysis of the radiological safety programs carried out by CSEN during the last 30 years, which allowed the training of more than 2200 people in the country and, at the same time, made possible the securing of the respective Individual License, is presented in this work. The courses, nuclear medicine, radiotherapy, industrial radiography, nuclear gauges gamma irradiator, etc..., are part of the continuous education program of CSEN. (Author)

  18. Questions to the radiological protection in the Universidad Nacional Autonoma de Mexico; Cuestionamientos a la proteccion radiologica en la Universidad Nacional Autonoma de Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Salas M, B., E-mail: salasmarb@yahoo.com.mx [UNAM, Facultad de Ciencias, Departamento de Fisica, Circuito exterior s/n, Ciudad Universitaria, 04510 Mexico D. F. (Mexico)

    2014-08-15

    In the Physics Department of the Sciences Faculty of the Universidad Nacional Autonoma de Mexico (UNAM) exist at least 3 sites where radioactive sources and generating equipment s of ionizing radiation are managed: The Modern Physics Laboratory, the Radiological Analysis of Environmental Samples Workshop and the Collisions Workshop; the first of them has two neutron sources, in addition to other emitted sources of gamma and beta radiation. The neutron sources are of Americium 241-Beryllium and other of Californium-252 which have been operated outside of the control of the Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS) that is the regulator organ in Mexico in nuclear matter, because the Operation License No. 183/85, with file number 657 that protected them, lost their validity from August 13, 1987 (25 years behind), what motivated to that the CNSNS assured them. Later to the closing of the Radiological Analysis of Environmental Samples Workshop was believed that a Barium-133 source had been extracted in an illegal way; an investigation realized by the CNSNS determined that the radioactive source was always inside of the detection systems and radiation measurement, for what this source was never lost. In the Collisions Workshop operated an Experimental Accelerator of Particles that the CNSNS prohibited its operation for not having the corresponding license. These examples can be considered as bad practices of radiological protection that should be pointed out to eradicate their promotion and to avoid this way the exposure to the radiation of the occupational exposed personnel and people in general, being also avoided dose of unnecessary radiation. The Instituto Federal de Acceso a la Informacion Publica y Proteccion de Datos (IFAI) in Mexico was a key factor to obtain the information that allowed the realization of this work that was carried out in the Sciences Faculty of the UNAM. (Author)

  19. Evaluation of radiation packages type A from the center of isotopes in Cuba; Evaluacion radiologica de los bultos tipo A del centro de isotopos de Cuba

    Energy Technology Data Exchange (ETDEWEB)

    Balbona, Zayda Amador; Pijuan, Saul Perez, E-mail: zabalbona@centis.edu.cu [Centro de Isotopos (CENTIS), Mayabeque (Cuba); Gual, Maritza Rodriguez, E-mail: mrgual@instec.cu [Instituto Superior de Tecnologias y Ciencias Aplicadas (InSTEC), la Habana (Cuba)

    2013-07-01

    The Isotope Center (CENTIS) of the Republic of Cuba makes the transportation of its products mainly in packaged type A. To undertake the design of packages, packaging components from 6 producing firms (including those found Amersham, CISBIO and IZOTOP) are studied. From the applicable regulations, security features and requirements are established as well as the technical characteristics of the packaging components. This study evaluated according each radioisotope, product and specific activity, high activity that can be included in a Type A package with the limitation that the dose rate on their surfaces is less than or equal to 2 mSv/h. In addition, each package is characterized taking into account the value of the maximum dose rate at maximum contact and the transport index for the day of transport. For this, the Microshield code using version 5.0.3. The dose rate in contact with the package of {sup 90}Y is calculated using the Monte Carlo code MCNPX version 2.6.0. The maximum possible activity values are obtained for each shielding transport radionuclides CENTIS produced, namely {sup 131}I, {sup 125}I, {sup 32}P, {sup 99}Mo/{sup 99m}Tc, {sup 99m}Tc, {sup 188}Re and {sup 90}Y and 69 radioactive packages type A are evaluated.

  20. Preliminary results of system emergency program to radiologic events of Distrito Federal; Resultados preliminares do programa de atendimento a eventos de origem radiologica no Distrito Federal

    Energy Technology Data Exchange (ETDEWEB)

    Correa, Rosangela da Silveira; Dias, Cintia Melazo; Nicoli, Ieda Gomes [CNEN, Brasilia, DF (Brazil)

    1997-12-31

    This paper intends to present the program conducted by Comissao Nacional de Energia Nuclear (CNEN) in Brasilia related to the controlling of unusual situations involving radiation sources in Distrito Federal. The CNEN in Brasilia has been working in this program since 1994. In this way people has used two mechanisms to contacted, telephone and pager. In 1994, there was one denunciation, five in 1995 and twenty in 1996. The device found in Distrito Federal were: radioactive lightning rod, dentistry and medical X-rays equipment, smoke detectors, research and toxic material. In a period of three years, 1994 to 1996, the radioactive lightning rod an dentistry and medical X-rays equipment represented seventy per cent of all material found. Distrito Federal has never had a real radiological emergency situation but radiological events because, up to now, it has not have lost of control of a radioactive source. The problem that emerges is a psychological. The radioactive symbol found in the material frightens the population. The results show that an emergency planning is necessary in Distrito Federal once that the events occurred since 1996 represented thirty per cent of all events occurred in national territory. (author) 6 refs., 3 figs.; e-mail: cnenbsb at rio.nutecnet.com.br

  1. Evaluation of the nuclear and radiological emergency response system in Brazil; Visao critica do sistema de atendimento a emergencia radiologica e nuclear no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Estrada, Julio J.S.; Azevedo, Eduardo M.; Knoefel, Tom M.J. [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil)

    1997-12-31

    Brazilian Nuclear Energy Commission (CNEN) has made outstanding efforts to improve its nuclear and radiological accident response system since the tragic accident in Goiania, Brazil. Most of these efforts are related to nuclear emergency although radiological accidents are also considered. Several topics are discussed involving those related to planning and preparedness. Some deficiencies that need to be corrected or improved are pointed out 8 refs.

  2. Radiologic safety program for ionizing radiation facilities in Parana, Brazil; Programa de seguridad radiologica para las oficinas de salud en Parana, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, M.F.S.; Tilly Junior, J.G. [Secretaria de Saude do Estado do Parana, Curitiba, PR (Brazil)

    1997-12-31

    A radiologic safety program for inspection, licensing and control of the use of ionizing radiation in medical, industrial and research facilities in Parana, Brazil is presented. The program includes stages such as: 1- division into implementation phases considering the activity development for each area; 2-use of the existing structure to implement and to improve services. The development of the program will permit to evaluate the improvement reached and to correct operational strategic. As a result, a quality enhancement at the services performed, a reduction for radiation dose exposure and a faster response for emergency situations will be expected 2 refs., 1 fig., 2 tabs.

  3. Implementation of an action plan in radiological protection of the patient in Argentina; Implementacion de un plan de accion en proteccion radiologica del paciente en la Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Michelin, S; Perez, M R; Dubner, D [Laboratorio de Radiopatologia, Autoridad Regulatoria Nuclear, Av. Del Libertador 8250 CP 1429, Buenos Aires (Argentina)

    2006-07-01

    The medical irradiations constitute the main contribution to the human exposure to ionizing radiations of artificial character. The growing quantity of practices, facilities and human resources dedicated to such ends, it has increased the concern of regulator organisms and scientific societies by the radiological protection of the patient (PRP). Besides completing it regulatory function in the domains of the medical practices that its concern it, the Nuclear Regulatory Authority (ARN) of Argentina, decided to install an active discussion in order to promoting an action plan in PRP in the national environment. To such end, the ARN organized the First National Day on PRP in December, 2004, with the attendance of professionals of the fields of the Radiodiagnostic, the Nuclear Medicine and the Radiotherapy as well as of representatives of professional associations and authorities of health. In this day the conclusions of the International Conference on PRP (Malaga, 2001) and the approaches of the Directive 97/43/EURATOM adopted in European countries were presented. It was discussed about: practices justification, responsibility of the prescriber doctor, quality systems, dose optimization, reference levels, dosimetry, training of human resources, especially for certain practices (pregnant woman, pediatric radiology and interventionist, PR/118 tomography for the correct application of diagnostic practices and an expert presented in teleconference form the experience of France for the adoption of these guides. During the Second National Day on PRP organized by the ARN (June 2005), received opinions were debated in the different environments in relation to the PR/118 guide and it potential adaptation to the national conditions. Also it was presented the state of advance of the activities developed in relation to the proposed tasks. As a result of this meeting, it was conformed a national net of PRP to which intended to incorporate academic institutions, in order to consider the inclusion of topics of PRP in the medical grade formation. Work groups were constituted in Radiodiagnostic, Radiotherapy, Nuclear Medicine and the PRP of the pregnant woman that agreed the contents and chronograph of a work plan to short and medium term that is at the moment in execution. The continuity of this coordinated action facilitated the execution of the proposed objectives. In this communication the results obtained until the present of the action plan for the PRP implemented in the Argentina starting from the year 2004 are presented. (Author)

  4. Medical response guide for the initial phase of a radiological emergency; Guia para la respuesta medica en la fase inicial de una emergencia radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Vazquez, Marina A; Perez, Maria del R

    2007-07-01

    In case of a sanitary emergency, the local community and its health care system are the first aid providers. Therefore, preparedness through education and training programs would allow emergency systems to provide an appropriate first medical response. The main objective of this guide is to give basic guidelines for the medical response management after situations involving radioactive materials, in an easy and simple way. The information contained in this guide is addressed to health care personnel of any local assistance center. (author) [Spanish] Las emergencias que afecten a un numero importante de personas y que tengan como protagonistas agentes 'no convencionales' como lo son las radiaciones ionizantes, deben ser abordadas mediante la implementacion de programas sanitarios especiales. En una situacion de emergencia, generalmente los primeros en proporcionar la ayuda, son la comunidad local y su sistema de salud. Por ello la preparacion previa local, a traves de la capacitacion y el entrenamiento permitira brindar una respuesta inicial adecuada que se articule con un sistema de respuesta en emergencias escalonado y de complejidad creciente. Esto requiere la participacion de las autoridades de salud en cada uno de los niveles de atencion, asi como apoyo de otros sectores para desarrollar sus planes de preparacion y respuesta. La presente guia, como instrumento de capacitacion, tiene como objetivo primario brindar las herramientas basicas para el manejo de la respuesta medica en una situacion de emergencia que involucre material radiactivo, en un lenguaje claro y sencillo, dirigida al personal de salud de todos los centros asistenciales locales. (autor)

  5. LOG: Analyzing navigation trough a tutorial of Radiation Protection; Cuaderno de bitacora: analisis de la navegacion a traves de un tutorial de proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Vega, J. M.; Pena, J. J.; Rossell, M. A.; Calvo, J. L.

    2003-07-01

    Every day, the number of didactic materials presented through Internet, is greater. However, we have not effective tools to obtain the potential academic yield of such a media. The complexity of the Internet protocols, in spite of the easy handling, makes it almost impossible. In this work, a didactic tool to analyse graphically the navigation through a tutorial on radiation protection is presented. For its visualisation, some subjects related with the biogical effects of radiation and with radiological quantities and units have been selected. The graphical representation shows the tour travelled by the user, in our case students of Medicine, and the time employed in eyeing each one of the nodes. The answers to problems about the contents of each node and its graphical representation in the navigation map allow us to follow the learning progress of the students as well as their standard of navigation. The graphical representation analysis of multiple users permits to detect some of the mistakes in the design of the tutorial and to suggest to the author a method for amending these mistakes. The system is developed on LINEX, but it is easily adaptable to other operating systems. (Author) 7 refs.

  6. The maintenance and the radiological safety in gamma irradiation facilities; El mantenimiento y la seguridad radiologica en instalaciones de irradiacion gamma

    Energy Technology Data Exchange (ETDEWEB)

    Torres C, G [Gerencia de Servicios Tecnicos Nucleares ININ (Mexico)

    1991-07-01

    Presently work the outstanding aspects of the operation and maintenance of the Industrial Irradiator JS 6500 are described that the ININ operates, in the Nuclear Center of Salazar, Estado de Mexico and its relationship with the radiological security for the occupationally exposed personnel. The signal devices are described and of control of the associate teams, as the system of cooling of the source; the plant of treatment of water of the pool and the system of extraction of ozone. On the other hand the procedures are mentioned for the sure operation and the application of the annual programs of maintenance, in their aspects of more interest, to reduce to the maximum the correction of faults, during the routine operation.

  7. Proceedings of the 6. Argentine congress on radiation protection and nuclear safety; Actas del 6. congreso argentino de proteccion radiologica y seguridad nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-12-31

    The 6th Argentine Congress on Radiation Protection and Nuclear Safety was organized by the Radioprotection Argentine Society, in Buenos Aires, between the 22 and 24 of september of 1998. In this event, were presented almost 66 papers in the following sessions, about these subjects: 1.- Safety in nuclear installations. 2.- Control of nuclear material and physical protection of nuclear installations. 3.- Programs of quality assurance. 4.- Training, technical information and public information. 5.- Physical dosimetry. 6.- Physical dosimetry and occupational radiation protection. 7.- Exposure of the natural radiation. 8.- Environmental radiological safety. 9.- Biological effects of the ionizing radiations and biological dosimetry. 10.- Radiological protection of the medical practice and the radiological emergencies. 11.- Radioactive wastes management. 12.- Transport of radioactive materials

  8. Method for the development of emergency response preparedness for nuclear or radiological accidents; Metodo para el desarrollo de la preparacion de la respuesta a emergencias nucleares o radiologicas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report supplements IAEA emergency preparedness guidance published in the 1980s, and is consistent with the new international guidance. It provides practical advice for the development of an emergency response capability based on the potential nature and magnitude of the risk. In order to apply this method, emergency planners should have a good understanding of the basic radiological emergency response principles. Therefore, other applicable international guidance should be reviewed before using this report. This report provides a practical step-by-step method for developing integrated user, local and national emergency response capabilities. It can also be used as the basis for conducting an audit of an existing emergency response capability.

  9. Radiation protection program by the National Directorate of Nuclear Technology of Uruguay; Programa de proteccion radiologica para la Direccion Nacional de Tecnologia Nuclear de Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Lopez Salaberry, M

    2002-12-01

    The present work offers to the user of ionizing radiation sources in public and private institutions a basic and synthesized guide of radiological protection indicating obligations and rights that the personnel acquires to carry out functions in these facilities.

  10. Application of Spanish legislation on radiation protection in contaminated soils; Aplicacion de la normativa espanola sobre suelos contaminados en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Trueba Alonso, C.; Robles Atienza, B.

    2013-07-01

    As the developments that have led the regulations on contaminated soils conventional pollutants are more advanced than those due to radioactive contaminants, this work is a state of the art of the current situation and is framed within the developments in R and D for radiation protection of the public and the environment. (Author)

  11. Use of bioindicators in the environmental radiological surveillance of Mexican Nuclear Center; Utilizacion de biondicadores en la vigilancia radiologica ambiental del Centro Nuclear de Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Gaso P, M.I.; Segovia, N.; Herrera, T.; Perez S, E.; Cervantes, M.L.; Quintero, E.; Palacios, J.; Acosta, E. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico); Herrera, T. [UNAM Instituto Biologia, 04510 Ciudad Univ., Mexico D.F. (Mexico)

    1998-07-01

    Cs-137 and K-40 concentrations were determined in soil samples and wild eatable mushrooms at the forest ecosystem of Mexican Nuclear Center and its surrounding area. The evaluation was carried out with a low bottom gamma spectroscopy system including a high-purity Ge detector (HPGe). The local species that showed greater soil-mushroom transference factor, for Cs-137, were Clavariadelphus truncatus, Cortinarius caerulescenc, Gomphus floccosus and Lyophyllum decastes. The Cs-137 levels obtained in the mushroom samples of Nuclear Center, were in general slightly lower than those of adjacent places, which indicates that this Center is not polluting the atmosphere with such radionuclide. (Author)

  12. Arrangements for preparedness for a nuclear or radiological emergency. Safety guide (Spanish Edition); Disposiciones de preparacion para emergencias nucleares o radiologicas. Guia de seguridad

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-15

    Under the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency, one function of the IAEA is to collect and disseminate to States Parties and Member States information concerning methodologies, techniques and available results of research relating to response to such emergencies. The primary objectives of this Safety Guide, co-sponsored by FAO, OCHA, ILO, PAHO and WHO, are to provide guidance on preparedness and response for a nuclear or radiological emergency, to describe appropriate responses to a range of emergencies, and to provide background information on past experience, thus helping the user to better implement arrangements that address the underlying issues.

  13. Specialized consultant in radiological safety to the Ciudad del Carmen general hospital, PEMEX; Asesoria especializada en seguridad radiologica al hospital general Ciudad del Carmen, PEMEX

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Hernandez C, J. E.; Rodriguez A, F.; Garcia A, J

    2003-02-15

    The Ciudad del Carmen general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  14. Aspects of radioprotection in whole body irradiation treatments (TBI); Aspectos de proteccion radiologica en tratamientos de irradiacion de cuerpo total (TBI)

    Energy Technology Data Exchange (ETDEWEB)

    Pinella, Yuliana M. Ayala, E-mail: yayala@crlima.com [Centro de Radioterapia de Lima S.A., Lima (Peru); Chavez, Cesar Picon, E-mail: cesarpicon@yahoo.com [Universidad Nacional de Ingenieria (UNI), Lima (Peru)

    2013-11-01

    Radiation protection occupationally exposed personnel and the public is considered in this study. It was done the experimental determination of the exposure rates at critical points in the area of radiotherapy and it was evaluated the staff dosimetry.

  15. Preparation and response to radiation and nuclear emergencies in case of natural disasters; Preparacion y respuesta a emergencias nucleares y radiologicas en caso de desastres naturales

    Energy Technology Data Exchange (ETDEWEB)

    Vegueria, Pablo Jerez, E-mail: pablo@orasen.co.cu [Centro Nacional de Seguridad Nuclear (CNSN), La Habana (Cuba); Lafortune, J.F., E-mail: padijeff@gmail.com [VP International Affairs, International Safety Research (Canada)

    2013-07-01

    The impact of natural disasters in cities and communities has grown by different causes in different parts of the world. There are several examples of the impact that have caused extreme natural events in facilities and activities in which ionizing radiation are used. The recent example of the accident at the nuclear power plant of Fukushima Daichi with release of radioactive substances to the environment caused by an earthquake and a tsunami show the need of the increasing improvement in the safety of facilities and activities that use ionizing radiation and radioactive materials in general. Planning and response to events of this nature is another aspect that is important and needs attention. The IAEA documents offer a comprehensive and effective guide to achieve an appropriate degree of readiness to respond to nuclear and radiological emergencies in any situation. However, there are specific challenges for planning and response posed a radiological emergency caused by an extreme natural event or occurring simultaneously with this. The present work deals with essential aspects to take into account by the authorities who coordinate the planning and response to radiological emergencies to deal with extreme natural events.

  16. 9RU2 Radiological protection, attention to the detail-EPU; 9RU2 Proteccion radiologica, atencion al detalle-EPU

    Energy Technology Data Exchange (ETDEWEB)

    Padilla C, I. [CFE, Central Laguna Verde, Km. 42.5 Carretera Cardel-Nautla, Veracruz (Mexico)]. e-mail: ipadilla@cfe.gob.mx

    2008-07-01

    To optimize times and movements in a reload project of nuclear fuel in a nuclear plant, where they are programmed more three thousand maintenance activities, modifications, monitoring and inspection in a smaller period to 30 days, and additionally to optimize the individual and collective dose in the same one, turn out to be important challenges where the used strategies must be accompanied of a deep knowledge of the installation in the radiological sense and of the spaces conceptualized in the time. The attention to the detail makes possible that the objectives are fulfilled. During the shutdown of reload 9 of Unit 2 (9RU2) of the nuclear power plant of Laguna Verde, the attention in detail applied in the critical points allowed a saving of dose of 0.7 Sv-person and one deviation of the goal of only +0.85% (smaller to 1% of the goal established like 2 challenge of Sv-person). Analysis of times, movements and training to develop skills in inspection activities in service that requires intervention in the external surface of the reactor vessel to examine the condition of welds, allowed reducing times of execution of 12 to 2 hours. Analysis of the environment and attention to the detail are techniques that allowed optimizing dose in 9RU2 and they were used in the project Power Increase. In this work the strategies of the surroundings and attention in detail applied in 9RU2 would appear and detail attention in the increase of power in the reload 13 Unit 1. (Author)

  17. Training system in radiation protection of workers of a radioactive facility; Sistema de capacitacion en seguridad radiologica de los trabajadores en una instalacion radiactiva

    Energy Technology Data Exchange (ETDEWEB)

    Amador Balbona, Zayda; Perez Pijuan, Saul; Ayra Pardo, Fernando E.; Soria Guevara, Miguel A., E-mail: zabalbona@centis.edu.cu [Centro de Isotopos (CENTIS), Mayabeque (Cuba)

    2013-07-01

    The following topics are addressed: the state of the art of the studies on the biological effects of ionizing radiation, the new national regulations, operational experiences and in the transportation of radioactive materials and those obtained from the radiological events, radioactive waste management and the analysis of culture of safety in the installation. It evaluates the effectiveness of the training system through the analysis of the occurrence of radiological incidents and behavior of occupational exposure.

  18. Training for the medical response in radiological emergency experiences and results; Capacitacion para la respuesta medica en emergencias radiologicas experiencias y resultados

    Energy Technology Data Exchange (ETDEWEB)

    Cardenas Herrera, J.; Lopez Forteza, Y.

    2003-07-01

    The use of the nuclear techniques in the social practice confers a special imporatnce to the relative aspects to the safety of the practices and radiationsources, for what the implementation of efficient programs of radiation protection constitutes a priority. However in spite of the will before expressed, regrettably radiological situations happen accidental assocaited to multiple causes taht suggest the creation of response capacities to intervention before these fortuitous facts. The experiences accumulated in the last decades related with accidental exposures have evidenced the convenience of having properly qualified human resources for the Medical Response in Radiological Emergencies. The training in the medical aspects of the radiological emergencies acquires a singular character. In such a sense when valuing the national situation put onof manifest deficiences as for the training in medical aspects of the radiological emergencies that advised the development of training programs in such aspects for the different response groups linked to the topic. After identified the training necessities and the scope of the same ones, the contents of the training program were elaborated. The program has as general purpose the invigoration of the capacity of the medical response in front of accidental radiological situations, by means of actions that they bear to prepare groups of medical response in the handling of people accident victims and to the identification of potentials,accidental scenarios, as well as of the necessary resources to confront them. The program content approaches theoretical and paractical aspects to the medical aspect to radiological emergencies. The program include the different topics about fundamental of physical biological to radiation protection, radiation protection during exposure of radiological accidents, medical care for overexposed or contaminated persons, drill, exercises and concludes with designation of a strategy as preparation and response in emergency radilogical. In the country they have been developed an important number of training activities that allowed to quality hundred of specialists. It should be meant that our country has also contributed to the preparation in topics of medical response to Latin American specialists. (Author)

  19. Education in radiation protection in the National Customs of Paraguay; Educacion en proteccion radiologica en la Direccion Nacional de Aduanas del Paraguay

    Energy Technology Data Exchange (ETDEWEB)

    Bordon, Oscar, E-mail: obordon@aduana.gov.py, E-mail: obordon@yahoo.com [Direccion Nacional de Aduanas, Departamento de Seguridad Radiologica, Administracion de Aduana de Gical, Mariano Roque Alonso (Paraguay)

    2013-07-01

    According to the IAEA-TECDOC-1312, as it is required by international agreements, the displacement of radioactive material within and among States should be subject to strict regulatory, administrative, safety and technical controls to ensure conditions of technological and physical safety. The Customs Office is one of the institutions responsible for monitoring shipments crossing international borders. Increasing illicit trafficking of radioactive materials, the use of ionizing radiation generating equipment for checking loads, and trade in radioactive substances have informed the need for education in radiation protection of customs officials. Thus, based on a course on radiation protection for Customs officials, organized by the International Atomic Energy Agency, in March 2008 was initiated a course of radiation protection, of 30 hours Carrera Tecnica del Centro de Formacion y Capacitacion Aduanera de Paraguay, which highlights the basic chapters and for transporting, nomenclature, new equipment emitting ionizing radiation and smuggling. Since then, to date, at least 10 groups have completed the training. Within the training program for customs officials, was incorporated a course for radiation protection of operators of baggage scanners with a four-hour program. Finally, since from 2011 and periodically, at various country customs, a workshop on Illicit trafficking of radioactive and nuclear materials is performed. The results of these courses have been very positive, as well as know the proper procedures for dealing with ionizing radiation has increased the safety culture within the institution.

  20. Capacity training for the personnel of radiation monitoring in metal recycling; Curso de capacitacion para el personal que realiza la vigilancia radiologica en el reciclaje de metales

    Energy Technology Data Exchange (ETDEWEB)

    Caveda Ramos, C.A.; Dominguez Ley, O., E-mail: caveda@cphr.edu.cu [Centro de Proteccion e Higiene de las Radiaciones, La Habana (Cuba)

    2013-07-01

    In this work it a course for training for the personnel involved in the radiation monitoring of metal recycling is presented. The contents were elaborated taken into account the IAEA recommendations for the development of capacity and training activities in radiological safety and in the Guide for the control of radioactive material in metal recycling. The program is divided in eleven parts and the duration time is two weeks. Among the main covered topics are the requirements for radiation monitoring in metal recycling; response to detection of radioactive material and effects of the ionizing radiation in man and environment.

  1. Argentine Radiation Protection Society Experience in RP education and training; Experiencia de la Sociedad Argentina de Radioproteccion en capacitacion en Proteccion Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Bomben, A. M.; Ciallella, N. R.; Thomasz, E.; Rudelli, M.; Gisone, P.; Ventura, M.; Gomez Parada, I.; Signoretta, C.

    2003-07-01

    Since its creation in 1967, the Argentine Radiation Protection Society (SAR) promotes all the radiation protection and nuclear safety aspects not only within the scientific, technical and academic areas, but also to general public. To fulfill this objective, SAR organised training and refresher courses, seminars and workshops on RP subjects. During 2002, SAR organised 7 basic and specialized courses regarding the uses of radioactive materials in industrial applications and the course on medical response in radiological accidents, that was attended by Argentine and other Latin American participants. The programmes of the courses are developed in compliance with the legal requirements and also considering specifics needs. In this paper, the characteristics of the courses are enunciated and basic statistics regarding courses and participants are presented. For the 2003 and 2004, SAR foresees the organisation of 18 courses per year and has the capacity to deliver other courses by request. all the courses are delivered in Spanish language. Based on this educational experience SAR consider a priority the inclusion, of a RP module in all the scientific graduate programmes to generate awareness on the importance of RP. Taking into account the migration of professionals to Europe and North America and the Globalization, SAR advocates the harmonization of RP syllabus to attain an international recognition. (Author)

  2. Radiological assessment occupational radionuclides in a phosphoric acid plant; Evaluacion radiologica ocupacional y distribucion de radionucleidos en una planta de acido fosforico

    Energy Technology Data Exchange (ETDEWEB)

    Bolivar, J. P.; Garcia-Tenorio, R.

    2008-07-01

    On the frame of a research project devoted to the control of the exposure due to natural radiation in several NORM industries located at the South of Spain, a detailed to the production of phosphoric acid has been performed. In addition, the behaviour along the mentioned process of the different radionuclides involved has been analysed. It has been concluded that the effective dose which can be received by the workers of the plant is clearly below 1 mSv/year. And it has been demonstrated that the main route of occupational exposure corresponds to the external radiation due mainly to the permanent presence of a radioactive contamination source in different zones of the plant. This contamination source is associated to the presence of scales in the inner surfaces of pipes and equipment as well as to the presence of sludges in the phosphoric acid storage tanks, which in both cases contain elevated concentrations of 226{sup R}a. Moreover, the 222{sup R}n concentrations inside the plant do not overpass 100 Bq/m{sup 3}, which not constitutes a radiological problem. (Author) 9 refs.

  3. New Network of Automatic Stations integrated in the CSNs Environmental Radiological Surveillance Network; Nueva Red de Estaciones Automaticas integrada en la Red de Vigilancia Radiologica Ambiental del CSN

    Energy Technology Data Exchange (ETDEWEB)

    Parages Perez del Yerro, C.; Garcia Cadierno, J. P.; Calvin Cuartero, M.

    2016-05-01

    In 1992, the Council put into operation a network comprising 25 automatic stations for continuous monitoring of the radiological quality of the air and the detection of anomalous situations. It has now decided to undertake the renewal and modernisation of these installations, incorporating sensors and automatic connection and communication systems based on the best technology currently available. (Author)

  4. Medical response in the initial phase of a radiological or nuclear emergency; Respuesta medica en la fase inicial de una emergencia radiologica o nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Vazquez, M; Perez, M R; Dubner, D; Michelin, S; Malvicini, M [Autoridad Regulatoria Nuclear, Av. Del Libertador 8250, Gobierno Autonomo de la Ciudad de Buenos Aires (Argentina)

    2006-07-01

    The frequency of radiological and nuclear accidents is low with relationship to another type of have an accident, but the use of radioactive sources has been increased in the finish decades. Additionally, a growing world concern exists by the eventual use of radioactive material with malevolent ends. These facts put in relevance the necessity to have an appropriate preparation for the medical answer in this type of emergencies. The medical answer consists of different phases: Initial: pre-hospital and in local general hospitals; Intermediate: in local general hospitals and central reference hospitals. Late: in central reference hospitals and the pursuit to long term. The presence of conventional injuries (radio combined injuries) modifies in substantial form the assignment in the priority of the attention, the prediction and the evolution. The establishment of an appropriate triage is outstanding in the initial phase. The present communication approaches the early medical answer, sustained in the anamnesis, the chronology and severity of the symptoms and prodromal signs besides the laboratory results and complementary exams arisen during the first ones 24 to 72 hours. (Author)

  5. Presentation of the first career in Mexico of Technical Professional in Radiological Protection; Presentacion de la primera carrera en Mexico de Profesional-Tecnico en Proteccion Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Vizuet G, J.; Suarez, G.; Corona Montes de Oca, J.; Arias C, M. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    2002-07-01

    The present educational project has the purpose to show the realized work for introducing the first career of Radiological Protection technician in Mexico. There for the developed activities concerning to the integration of the syllabus is described as well as those realized concerning to the participant teaching personnel training in summarized form. The syllabus has been developed with the purpose to fulfil with the training programs established by the Comision Nacional de Seguridad Nuclear y Salvaguardias, as well as those required by the Secretaria de Salud with respect to the fulfilment of the Normas Oficiales Mexicanas set, international recommendations and that suggested by the training guides emitted by the Direccion General de Capacitacion y Produccion of the Secretaria de Trabajo y Prevision Social. (Author)

  6. Radiological protection in a patient during a total body irradiation procedure; Proteccion radiologica en un paciente durante un procedimiento de TBI (irradiacion de cuerpo entero)

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez O, J. O.; Hinojosa G, J.; Gomez M, E.; Balam de la Vega, J. A. [The American British Cowdray Medical Center, I. A. P., Sur 128 No. 143, Col. Americas, 01120 Mexico D. F. (Mexico); Deheza V, J. C., E-mail: johernandezo@abchospital.co [IPN, Escuela Superior de Fisica y Matematicas, Av. Luis Enrique Erro s/n, Edificio No. 9, Unidad Profesional Adolfo Lopez Mateos, Col. Lindavista, 07738 Mexico D. F. (Mexico)

    2010-09-15

    A technique used in the Service of Radiotherapy of the Cancer Center of the American British Cowdray Medical Center (ABC) for the bone marrow transplantation, is the total body irradiation. It is known that the dose calculation, for this irradiation type, is old, since the dosimetric calculation is carried out by hand and they exist infinity of techniques for the patients irradiation and different forms of protecting organs of risk, as well as a great uncertainty in the given dose. In the Cancer Center of the ABC Medical Center, was carried out an irradiation procedure to total body with the following methodology: Computerized tomography of the patient total body (two vacuum mattresses in the following positions: dorsal and lateral decubitus), where is combined the two treatment techniques anterior-posterior and bilateral, skin delineate and reference volumes, dose calculation with the planning system Xi O of CMS, dose determination using an ionization chamber and a lung phantom IMRT Thorax Phantom of the mark CIRS and dosimetry in vivo. In this work is presented the used treatment technique, the results, statistics and the actualization of the patient clinical state. (Author)

  7. Characterization of different qualities in X-rays, for instruments calibration in radiological protection; Caracterizacion de diferentes calidades en rayos X, para calibracion de instrumentos en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Cejudo A, J.; Tovar M, V. M.; Vergara M, F., E-mail: jesus.cejudo@inin.gob.m [ININ, Departamento de Metrologia de Radiaciones Ionizantes, Laboratorio Secundario de Calibracion Dosimetrica, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2010-09-15

    In the Secondary Laboratory of Dosimetric Calibration in Mexico was realized the qualities characterization of the series X-rays RQR reported in the International Code of Practices in Dosimetry and Diagnostic Radiology No. 457, using attenuator filters of high purity aluminum and ionizing radiation equipment of inherent filtration of 4 mm Be with and emergent X-radiation beam of 40 grades. For the attenuation was used a geometric arrangement with three beam limiters and a monitor camera prepared on the established form in the mentioned technical report, and a spherical ionization chamber with collection volume of 3.6 cm{sup 3}, aligning its geometric center with the focus of X-rays tube to get that the incident radiation direction will be perpendicular to the ionization chamber. From the perspective of the radiological protection is important to know the X-radiation quality for the application dedicated to the instruments calibration and can to give to these the traceability to a reference laboratory, this way the quality combination and reference chamber can give as a result a procedure for the evaluation of the entrance in surface dose to estimate the dose orientate levels, specified in the basic standards of safety. (Author)

  8. Radiological protection in the interventional techniques: experience in the Pain Clinic of the CIMEQ; Proteccion radiologica en las tecnicas intervencionistas: experiencia en la Clinica del Dolor del CIMEQ

    Energy Technology Data Exchange (ETDEWEB)

    Guerrero C, M. C.; Benitez N, P. P.; Gonzalez G, Y. [Centro de Investigaciones Medico Quirurgicas, Av. 216 Esq. 11B, Playa Siboney, 6096 La Habana (Cuba); Martinez G, A.; Gonzalez R, N. [Centro de Proteccion e Higiene de las Radiaciones, Carretera de la Cantera, Victoria II, Km. 21.5 Guanabacoa, La Habana (Cuba); Sanchez Z, L. R., E-mail: mayka@infomed.sld.cu [Hospital C. Q. Hermanos Ameijeiras, San Lazaro 701, Centro Habana, La Habana (Cuba)

    2014-08-15

    The Pain Clinic of the CIMEQ offers treatment to patients with different pathologies, using interventional techniques as the radiology like visual guide to reach the target structure and to apply the election technique. The personnel that carry out these procedures are inserted in the program of radiological surveillance of the institution, reason for which a radiological event could be detected where the main physician responsible of the service was implied. In this work the results of an investigation are presented realized with the objective of to know the causes of the event and to determine the necessary measures to avoid that this repeats again. The investigation was oriented to three fundamental aspects: medical exam of the affected worker; evaluation of the operational procedures from the radiological protection view point; and dosimetric measurements simulating the real conditions of work for which were used ionization chamber, radiometer and PMMA mannequin. As a result of the medical exam was detected that the main physician of the service did not use during the execution of all the procedures the extremities dosimetry and that he presented a radio induced erythema in the right hand, reason for which he was separated of the activity with ionizing radiations, until the conclusion of the investigation. With relationship to the evaluation of the operational procedures from the radiological protection view point, was verified that the medical physician not carried out any collimation of the beam and he was located in the positions where the dose rate reached the maximum values, frequently introducing the hands in the direct beam; that which implied an overexposure of the superior extremities and a not optimized exposure for whole body. This result was proven with the realized experimental measurements, which gave dose estimated values in extremities of the order of the deterministic effects. The investigation facilitated to introduce modifications in the operational procedures from the radiological protection view point that allowed optimizing the occupational exposure and to avoid the appearance of deterministic effects on the workers of this practice. Parallel was carried out the completion of the protection individual media and working media that allowed the proper application of the mentioned procedures were substituted. On the other hand, this investigation pointed to that the personnel training in radiological protection matter and the control of the occupational exposure in the interventional techniques are indispensable for the safe performance of the medical practice. (author)

  9. Consolidation of use of the CSN-CIEMAT radiological protection educational portal; Consolidacion de la utilidad del portal educativo de proteccion radiologica CSN-Ciemat

    Energy Technology Data Exchange (ETDEWEB)

    Llorente Herranz, C.; Marco Arboli, M.; Fernandez Sanchez, J.; Villaroel Gonzalez-Elipe, R.

    2016-05-01

    he workers of nuclear and radioactive facilities are required to undertake training programmes on radiological protection in order to achieve the accreditations and licences granted by the CSN. Since 2003, the Council has been collaborating with CIEMAT in the development, maintenance and updating of the teaching material for these courses. More than a thousand such courses have been delivered to date and their contents are accessible via Internet. (Author)

  10. Phosphogypsum applications in the cerrado agriculture and his radiological implications; Aplicacao do fosfogesso na agricultura do cerrado e suas implicacoes radiologicas

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Kerley Alberto Pereira de

    2008-07-01

    The rate of generation of phosphogypsum is approximately 4.8 tons for each ton of phosphoric acid produced. The annual world production can be estimated at 150 million of tons. It is classified as NORM (Naturally Occurring Radioactive Material), in other words, it is a solid waste that contains radioactive elements of natural occurrence from the source rock. The large amount of phosphogypsum produced has been attracting attention of radiological protection institutions and environmental protection agencies in the world, given its high potential for contamination of the environment. In Brazil, this material has been used for several decades, especially for agricultural purposes. In this case, the phosphogypsum is used as a source of calcium and sulfur, as conditioner, and for correction of subsurface soil saturated with sodium, potassium and aluminum. Due to the presence of radionuclides in phosphogypsum, it is necessary to understand the mechanisms for transferring of natural radionuclides in the system soil/plant and to evaluate if the use of phosphogypsum in soil contributes to increased exposition of humans to the natural radioactivity. Experiments were accomplished in a greenhouse with lettuce cultivation in two types of soil (sandy and loamy) fertilized with four different amounts of of phosphogypsum. Samples of phosphogypsum, soil, lettuce and drainage water were analyzed being determined the radionuclides of interest ({sup 238}U, {sup 232}Th, {sup 226}Ra, {sup 228}Ra, {sup 2}'1'0Pb and {sup 210}Po). {sup 238}U and {sup 232}Th have been carried out by neutron activation analysis, Ra, Ra and Pb by gamma spectrometry and Po by alpha spectrometry techniques. Finally, Transfer Factor of soil-plant was calculated and the annual contribution to the effective dose committed due to the ingestion of lettuces of the experiment. Analyses of chemical, physical and mineralogical characterization of soil and phosphogypsum samples were also accomplished. The phosphogypsum was classified as Class II A - Not Dangerous, Not Inert, Not Corrosive and Not Reactive. The soil samples analyzed as were acids, with low content of organic matter and high potential acidity. The average of specific activity for {sup 226}Ra in phosphogypsum samples (252 Bq.kg{sup -1}) was below of the maximum level recommended by USEPA, which is 370 Bq.kg{sup -1} for agricultural use. Although the most of the results of mean specific activity of radionuclides present in samples of lettuce present values below the Minimum Detectable Activity (MDA), the Transfer Factors were estimated for those conditions in which the mean specific activity proved to be superior to MDA. The values ranges from 1.8 10{sup -3} to 2.3 10{sup -2} for {sup 232}Th; 3.5 10{sup -2} to 4.1 10{sup -2} for {sup 226}Ra, 2.4 10{sup -1} to 3.2 10{sup -1} for {sup 228}Ra and 3.5 10{sup -2} to 8.5 10{sup -2} for {sup 210}Po, depending on the type of soil used in the planting of the vegetables. In general, the results obtained in the present study indicated that the mobility of radionuclides in both studied soils was low. The effective doses committed calculated well below the limit of 1 mSv.year{sup -1} established by ICRP, for the public in general (4,3 10{sup -3} mSv for the experiments in loamy soil and 7,5 10{sup -3} mSv for the experiments in sandy soil). It is possible to conclude that from the point of view of the radiological protection, the data obtained in this work demonstrated the viability of the use of phosphogypsum in agriculture of the Cerrado, Brazil. (author)

  11. Twenty years of Radiology in RP-10 nuclear reactor protection; Veinte anos de proteccion radiologica en el reactor nuclear RP-10

    Energy Technology Data Exchange (ETDEWEB)

    Zapata, Alejandro L.; Ramos, Fernando T.; Arrieta, Rolando W.B.; Vela Mora, Mariano, E-mail: lzapata@ipen.gob.pe, E-mail: framos@ipen.gob.pe, E-mail: rarrieta@ipen.gob.pe, E-mail: mvela@ipen.gob.pe [Instituto Peruano de Energia Nuclear (IPEN), Lima (Peru)

    2013-07-01

    In this report we present the results about radiation controls during 1990 - 2010, carried out in the Nuclear Reactor RP-10 of the Nuclear Center of Huarangal. These controls and radiological evaluation are of much utility for the radio personnel protection of this one and other reactors, since it allows to compares these variables with respect to the time. From the results obtained in monitoring and radiation controls, we conclude that in no case it has been reached the limits allowed by the Peruvian Regulating Authority. (author)

  12. Quality control of the interpretation monitors of digital radiological images; Controle de qualidade dos monitores de interpretacao de imagens radiologicas digitais: uma revisao

    Energy Technology Data Exchange (ETDEWEB)

    Favero, Mariana S.; Goulart, Adriano Oliveira S., E-mail: mariana@phymed.com.br [PhyMED - Consultores em Fisica Medica e Radioprotecao Ltda, Porto Alegre, RS (Brazil)

    2016-07-01

    The performance monitors has great importance in image quality of digital radiographic systems. In environments without films, it became necessary to implement acceptance testing and quality control monitors used for interpretation of medical images. The monitors dedicated to radiodiagnostic should provide information that represent slight differences in x-ray attenuation or minor differences in some anatomical region of interest. This should also result in small differences in luminance of an image represented. Factors affecting the quality of medical imaging are contrast, noise, resolution, artifacts and distortions. Therefore, a monitor must have specific characteristics, making it possible for the observer to carry out an assessment that leads to better diagnosis. Based on the need to evaluate diagnostic monitors in various radiological applications, this paper presents a summary for implementation and standardization of tests that are recommended by the publication AAPM Report 03. (author)

  13. Historical revision of the exposure magnitude and the dosimetric magnitudes used in radiological protection; Revision historica de la magnitud exposicion y las magnitudes dosimetricas empleadas en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez J, F. [UNAM, Facultad de Ciencias, Ciudad Universitaria, 04510 Mexico D. F. (Mexico); Alvarez R, J. T., E-mail: trinidad.alvarez@inin.gob.mx [ININ, Departamento de Metrologia de Radiaciones Ionizantes, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2014-10-15

    In this work a historical revision of the exposure magnitude development and their roentgen unit (1905 - 2011) is made, noting that it had their origin in the electric methods for the detection of the ionizing radiation in the period of 1895 at 1937. However, the ionization is not who better characterizes the physical, chemical and biological effects of the ionizing radiations, but is the energy deposited by this radiation in the interest bodies, which led historically to the development of dosimetric magnitudes in energy terms like they are: the absorbed dose D (1950), the kerma K (1958) and the equivalent dose H (1962). These dosimetric magnitudes culminated with the definition of the effective equivalent dose or effective dose which is not measurable and should be considered with the operative magnitudes ICRU: H environmental equivalent dose and/or H directional equivalent dose, which can be determined by means of a conversion coefficient that is applied to the exposure, kerma in air, fluence, etc. (Author)

  14. Database for the registration of radiological surveillance in radioactive facilities of CIEMAT; Base de datos para el registro de vigilancias radiologicas en las instalaciones radiactivas del CIEMAT

    Energy Technology Data Exchange (ETDEWEB)

    Marquez Fernandez, J. L.; Carroza Garcia, J. A.; Perez-Cejuela, P.; Vico Ocon, A.; Alvarez Garcia, A.

    2013-07-01

    In the CIEMAT There are 21 Radiation Facilities in which according to the Radiation Protection Manual must considered radiation hazards and / or contamination. The Radiological Protection Service according to this risk It establishes the classification and marking of areas and a monitoring plan that includes the type and extent of radiological periodicity. The information derived from this monitoring be registered and properly stored. Therefore, it has been completed the design of an application that allows technical experts record their actions and also consult records radiation monitoring tasks performed. (Author)

  15. Training in nuclear and radiation safety in Latin American and Caribbean; Capacitacion en seguridad nuclear y radiologica en America Latina y el Caribe

    Energy Technology Data Exchange (ETDEWEB)

    Papadopulos, S.; Diaz, O.; Larcher, A.; Echenique, L.; Nicolas, R., E-mail: spapadopulos@arn.gob.ar, E-mail: odiaz@arn.gob.ar, E-mail: alarcher@arn.gob.ar, E-mail: lechenique@arn.gob.ar, E-mail: rnicolas@arn.gob.ar [Autoridad Regulatoria Nuclear (ARN), Buenos Aires (Argentina); Lombardi, R.; Quintana, G., E-mail: alombar@fi.uba, E-mail: quinta@fi.uba.ar [Universidad de Buenos Aires (FI/UBA), (Argentina). Facultad de Ingenieria

    2013-07-01

    From thirty-three years, Argentina has taken the commitment to train professionals in the field of nuclear and radiation safety for the care and protection of workers and public in general. Sponsored by the IAEA and supported by the Faculty of Engineering of the University of Buenos Aires (FIUBA), an undertaking was made to encourage the training of scientists and experts in the countries of the region in order to establish a strong safety culture in radiation in individuals and maintaining high standards of safety practices using ionizing radiation. In 2012, the Graduate Course in Radiation Protection and Safety of Radiation Sources has acquired the status of 'Specialization' of the FIUBA, a category that further hierarchies skills training in the subject. This is a highly anticipated achievement by the implications for academic institutions, national and regional level, contributing to the strengthening of the Regional Training Center for Latin America and the Caribbean, acknowledged in a long-term agreement between the IAEA and Argentina in September 2008. Due to increased demand for nuclear activity, it is important to continue and deepen further training in radiological and nuclear areas. In order to satisfy both national and regional needs a process of increase on training offer training is being carried out, under the jurisdiction frame of the Nuclear Regulatory Authority. This paper presents the achievements of the country so far as regards training of human resource in radiation protection and nuclear safety in the region and highlights the challenges ahead for the extension of the offer in education and training. (author)

  16. The Association of the Heads of European Radiological Protection Competent Authorities (HERCA); La Asociacion de Autoridades Competentes en Proteccion Radiologica (HERCA)

    Energy Technology Data Exchange (ETDEWEB)

    Velasco, R.; RodrigueZ, M.; Amor, I.; Villanueva, I.; Martin Calvarro, J. M.; Aguado, M. D.; Sanchez, M.

    2012-07-01

    In 2007 a European association of regulatory authorities working in the field of radiological protection, known as HERCA, was set up with a view to harmonising the regulatory practices of the different countries, identifying new problems and providing agreed-to solutions. (Author)

  17. Chemical and radiological characterization of meals served by the COSEAS (USP-SP); Caracterizacao quimica e radiologica de refeicoes servidas pelo COSEAS/USP-SP

    Energy Technology Data Exchange (ETDEWEB)

    Favaro, Deborah Ines Teixeira [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), SP (Brazil). Centro do Reator de Pesquisas. Lab. de Analise por Ativacao Neutronica], e-mail: defavaro@ipen.br; Chioccola, Gabriella Saitta; Bortoli, Maritsa; Cozzolino, Silvia Maria Franciscato [Universidade de Sao Paulo (USP), SP (Brazil). Faculdade de Ciencias Farmaceuticas. Lab. de Alimentos e Nutricao Experimental; Taddei, Maria Helena [Comissao Nacional de Energia Nuclear (CNEN), Pocos de Caldas, MG (Brazil). Coordenacao do Laboratrio de Pocos de Caldas (COLAB); Mazzilli, Barbara Paci [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), SP (Brazil). Div. de Radiometria Ambiental

    2009-01-15

    This study presents the results obtained for the chemical and radiological analyses of lunch meals served in the cafeteria at the University of Sao Paulo-USP (COSEAS restaurant) in Brazil, on 5 non-consecutive days. On each of the five days, the meals were collected in triplicate and then freeze-dried for analysis totalizing 15 samples. The determination of the proximate composition complied with the AOAC standardized methodologies. The content of Ca, Fe, K, Na, Se, and Zn was determined by instrumental neutron activation analysis and the method validation was performed by certified reference materials analyses. Based on the concentration data, the daily intake of each mineral was calculated (corresponding to 40% of the total daily intake) and compared to the new recommendations set by the National Research Council (USA) considering the 19-30 year-old women range group. Comparing the average values obtained in this study with the recommended values, it was possible to verify that for macronutrients and the micronutrients Fe, Se, and Zn the recommendations were followed; for Ca and K they were deficient and exceeded the recommendation value for Na. The radionuclides {sup 40}K, {sup 60}Co, {sup 137}Cs, and {sup 131}I were determined by gamma spectrometry; {sup 90}Sr by liquid scintillation and {sup 210}Po, {sup 234}U, {sup 232}Th, {sup 238}U, {sup 235}U, {sup 228}Th, {sup 230}Th, and {sup 232}Th by alpha spectrometry. All radionuclides are present in concentrations below the limits set by the Food and Agriculture Organization (FAO). (author)

  18. Formation in radiological protection of the personnel of sanitary installations in Peru; Formacion en proteccion radiologica del personal de instituciones sanitarias en el Peru

    Energy Technology Data Exchange (ETDEWEB)

    Medina G, E. [Instituto Peruano de Energia Nuclear, Av. Canada 1470, Lima 41 (Peru)]. e-mail: medina@ipen.gob.pe

    2006-07-01

    All the people that work with ionizing radiations should have a singular license according to that settled down in the effective legal standards in force in Peru. This authorization is granted by the Peruvian Institute of Nuclear Energy (IPEN) after the postulant demonstrates that he can work in sure form in the application where it uses ionizing radiations. From 1972 the Superior Center of Nuclear Studies (CSEN) of the IPEN it has carried out diverse training courses on radiological safety and protection in medicine, industry and research, such it is so until the year 2005 it has organized 458 courses where 5872 people have been qualified in the country. 75% of people was qualified in the period 2000 - 2005. The courses are organized according to the specific work with radiations and in the one case of medical radiodiagnostic, dental radiology, nuclear medicine and radiotherapy has been qualified 2337 people (doctors, medical technicians and technicians) by means of 174 courses made among the years 2000 at the 2005, corresponding 69,75% to people qualified in radiological protection in medical radiodiagnostic. (Author)

  19. Pilot experience online training in radiological protection for residents in SESCAM; Experiencia piloto de formacion on line en proteccion radiologica para residentes en el SESCAM

    Energy Technology Data Exchange (ETDEWEB)

    Gil Agudo, A.; Carrascosa Fernandez, C.B.; Lopez de Castro, F.; Gregori Enguix, A.; Torres Donaire, J.; Arjona Gutierrez, J.; Zapata Jimenez, J. C.

    2013-07-01

    Described the design and evaluation of a computer tool to form online at Radiation protection to all residents of SESCAM, using the SESCAM e Learning platform. To do this done, as well as several courses in previous years, the first pilot course online for residents of the Hospital between the months of December 2012 and January 2013. (Author)

  20. Radiation during pregnancy: physical aspects relevant to radiological safety of the fetus; Radioterapia durante a gravidez: aspectos fisicos relevantes para seguranca radiologica do feto

    Energy Technology Data Exchange (ETDEWEB)

    Fernandes, Marco A.R. [Universidade Estadual Paulista Julio de Mesquita Filho (UNESP), Botucatu, SP (Brazil). Fac. de Medicina. Dept. de Dermatologia e Radioterapia; Pasqueta, Jessica; Branco, Isabela S.L.; Meira, Luiza L.C.; Morelli, Humberto A.S., E-mail: marfernandes@fmb.unesp.br, E-mail: marco@cetea.com.br [Universidade Estadual Paulista Julio de Mesquita Filho (UNESP), Botucatu, SP (Brazil). Instituto de Biociencias

    2013-08-15

    The work presents the physical and radiological protection procedures involved in radiotherapy performed in patients during pregnancy that contribute to the security and development of the fetus. We analyzed clinical cases studies with confirmed pregnancy undergoing radiotherapy. The study also analyzed the dosimetry protocols specific to different treatment fields considering the absorbed dose in the region estimated fetal through experimental measurements and computer simulations presented in the literature. It is discussed the concepts of radiation fetuses presented in the Report of the AAPM TG 36 focusing on the influence of the use of appropriate shielding and peripheral dose distribution outside the primary radiation field. Studies show no consensus on the threshold dose for fetal exposure, with values ranging between 2 and 25 cGy, depending on gestational age and position within the abdomen. As recommended by the organs of radiological protection in Brazil, the equivalent dose of radiation to the abdomen of pregnant women occupationally exposed should not exceed 2.0 mSv for the entire period of pregnancy. The measurements show that the main factors contributing to the increase in dose to the fetus are: radiation trail head, scattering from the collimator and dispersion by tissue irradiated region to the region surrounding the fetus. The results of research and clinical situations illustrated in reviewed scientific articles indicate that radiotherapy in pregnant patients is feasible, provided that the dose to the fetus is less than the threshold values, which can be achieved by the use of screens and settings fields Radiation appropriate and properly planned by experts who should simulate physical prior to treatment. The work aims to contribute to subsidize the treatment decision in radiotherapy procedures in pregnant patients pointing out the risks and benefits when the need for treatment. (author)

  1. Acting of the radiological surveillance of food in Cuba before anomalous situations; Actuacion de la vigilancia radiologica de alimentos en Cuba ante situaciones anomalas

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez G, I.M.; Rodriguez C, G.; Carrazana G, J.; Capote F, E. [CPHR, Calle 20, No. 4113 e/41 y 47, Playa, La Habana, 11300 (Cuba)]. e-mail: isis@cphr.edu.cu

    2006-07-01

    Keeping in mind the real possibility of that would be imported to Cuba polluted foods with radionuclides, product of a nuclear or radiological accident happens one contamination of foods inside the national territory, it was designed and was into effect in January, 2000, a Program of Radiological Surveillance of Foods and Water, in the marks of the National Program of Surveillance of Pollutants in Foods and Water. This surveillance is executed in group among the National Unit of Health Environmental of the Ministry of Health and the Center of Protection and Hygiene of those Radiations of the Ministry of Sciences, Technology and Environment. In this work the design in the way of acting of the Radiological Surveillance of Foods and Water in Cuba, in the event of detection of anomalous situations is presented. The same one includes, the establishment of investigation levels for radionuclides in foods, the ways of performance of the System, of to be overcome or to be equaled the performance levels or established investigation, the flow of the information, as well as the work routine to continue by the essay laboratories, in the event of an anomalous situation. (Author)

  2. Experiences in planning and response for the radiological emergencies in a radioactive facility; Experiencias en la planificacion y respuesta para las emergencias radiologicas en una instalacion radiactiva

    Energy Technology Data Exchange (ETDEWEB)

    Amador B, Z.H.; Perez P, S.; Torres B, M.B.; Ayra P, F.E. [Centro de Isotopos, Ave. Monumental y Carretera La Rada, Km. 3, Guanabacoa, Apartado 3415, Ciudad de La Habana (Cuba)]. e-mail: dsr@centis.edu.cu

    2006-07-01

    It is internationally recognized the importance of the planning and the assurance for the effective response to the radiological emergencies. In the work those experiences on this thematic one in the Isotopes Center (CENTIS), the radioactive facility where the biggest radioactive inventory is manipulated in Cuba are presented. Due to CENTIS is also the sender and main transport of radioactive materials, it is included this practice. The revision of the abnormal situations during the years 1997 at the 2005, starting from the classification adopted by the Regulatory Authority of the country is carried out. Its are register the details of these occurrences in the Radiological Events Database (BDSR). A correspondence among the radiological impact evaluated in the Emergency Plan for the possible events and that of the registered ones is obtained. The complete training programs and realization of the exercises are carried out. Those results of 3 mockeries made to full scale are picked up. It was concluded that the operational experience and the maintained infrastructure, determine the answer capacity for radiological emergencies in the CENTIS. (Author)

  3. Non controlled effect of ionizing radiations : involvement for radiation protection; Efectos no dirigidos de la radiacion ionizante: implicaciones para la proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Little, J. B.

    2005-07-01

    It is widely accepted that damage to DNA is the critical event on irradiated cells, and that double strand breaks are the primary DNA lesions responsible for the biological effects of ionizing radiation. This has lead to the long standing paradigm that these effects, be they cytotoxicity, mutagenesis or malignant transformation, occur in irradiated cells as a consequences of the DNA damage they incur. Evidence has been accumulating over the past decade, however, to indicate that radiation may induce effects that ar not targeted to the irradiated cells itself. Two non-targeted effects will be described in this review. The first, radiation-induced genomic instability, is a phenomenon whereby signals are transmitted to the progeny of the irradiated cell over many generations, leading to the occurrence of genetic effects such as mutations and chromosomal aberrations arising in the distant descendants of the irradiated cell. Second, the bystander effect, is a phenomenon whereby irradiated cells transmit damage signals to non-irradiated cells in a mixed population, leading to genetic effects arising in these bystander cells that received no radiation exposure. the model system described in this review involves dense monolayer cultures exposed to very low fluences of alpha particles. The potential implications of these two phenomena for the analysis of the risk to the human population of exposure to low levels of ionising radiation is discussed. (Author) 111 refs.

  4. Course of radiological protection and safety in the medical diagnostic with X-rays; Curso de proteccion y seguridad radiologica en el diagnostico medico con rayos X

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez A, C.E. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1997-07-01

    The obtention of images of human body to the medical diagnostic is one of the more old and generalized applications for X-ray. Therefore the design and performance of equipment and installations as well as the operation procedures must be oriented toward safety with the purpose to guarantee this radiological practice will bring a net positive benefit to the society. Given that in Mexico only exists the standardization related to source and equipment generators of ionizing radiation in the industrial area and medical therapy, but not so to the medical diagnostic area it is the purpose of this work to present those standards related with this application branch. Also it is presented the preparation of a manual for the course named Formation of teachers in radiological protection and safety in the X-ray medical diagnostic in 1997 which was imparted at ININ. (Author)

  5. Establishment and utilization of radiological protection programs for the transport of radioactive material; Establecimiento y utilizacion de programas de proteccion radiologica para el transporte de material radiactivo

    Energy Technology Data Exchange (ETDEWEB)

    Lopez V, J.; Capadona, N. [Autoridad Regulatoria Nuclear, Av. Del Libertador 8250 (1429) Buenos Aires, (Argentina)]. e-mail: jlvietri@sede.arn.gov.ar

    2006-07-01

    The present work has by objective to indicate rules for the establishment and the use of the Radiological Protection Programs (PPR) that are of application to the transport of radioactive materials according to that required by the Transport Regulation of the International Atomic Energy Agency (IAEA). The PPR are established and applied in systematic form for remittent, transport and addressees, to consider the measures of radiological protection and its appropriately control during the transport stages of radioactive material. In particular, in the work it is analyzed the PPR applied to the operative stage, in the one that can be considered as one of the more important documents to use since it summarizes the evaluations and the necessary controls of radiological protection. Also it is analyzed the importance that this document gets ready on the base that it converges in the the analyses, evaluations and data that have been kept in mind during the previous stages of design of bundles and production of packings, the types and quantities of involved bundles, as well as of considering the quantities of expeditions and its frequencies, the ways of transport, etc. It is included a brief description of the parts that the PPR conforms on the base of that suggested in the advanced draft of the TS-G-1.5 Guide 'Radiation Protection Programmes for Transport of Radioactive Material', of October, 2005, of the IAEA: objectives. necessity, scope, basic elements of a PPR in function of the occupational dose. assignment of functions and responsibilities for the establishment of a PPR, evaluation and dose optimization, surface contamination, segregation and other protection measures, responses in emergencies. training and administration systems for baled and transport of radioactive material. Next an example of PPR for the transport of bundles of the A Type by lorry with content of radiopharmaceuticals that are the bundles more used worldwide in the expeditions of radioactive materials and the way of transport more frequently used is developed. Finally, some conclusions about the necessity that at short term the IAEA publishes the TS-G-1.5 Guide not only in English but also in the official languages of the Organism, and that senders, transport companies and addressees settle down, apply or improve their PPR in harmonization with that suggested in the mentioned guide. (Author)

  6. Commercial sugar, an alternative dosemeter for the dose determination in radiological emergency conditions; Azucar comercial, un dosimetro alternativo para la determinacion de dosis en situaciones de emergencia radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Urena N, F.; Galindo, S. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1997-07-01

    It was carried out the dosimetric evaluation of commercial sugar, with the purpose to determine the feasibility to be able to use this type of substance as a dosimetric material in cases to present some radiological emergency cases. The studied parameters using the Electron Paramagnetic Resonance (EPR) technique were: pre-doses signal or depth signal, dose-response stability, reproducibility, reliability and signal clearing decreasing. (Author)

  7. Therapy with {sup 90}Y microspheres: radiation protection in new medical therapies; Terapia con microesferas de {sup 90}Y: proteccion radiologica en nuevas terapias medicas

    Energy Technology Data Exchange (ETDEWEB)

    Rojo, Ana; Puerta, Nancy, E-mail: arojo@arn.gob.ar [Autoridad Regulatoria Nuclear (ARN), Buenos Aires (Argentina)

    2013-07-01

    Primary liver cancer is one of the most frequent in the world and with a low cure rate. Radioembolization using 90y spheres is a promising treatment of this pathology and involves the percutaneous vascular application of radioisotope-labeled the order of Micron size particles. The advantages of this technique include the permit administered high doses of radiation to small volumes with low relative toxicity, offer the possibility of treating all the liver including microscopic tumors, and finally, the feasibility of combined with other therapies. Radiation protection in new medical therapies requires justification and optimization, as requirements for their implementation. The application of the principle of optimization in the context of the protection of the patient must be the minimum that it can be reasonably reached compatible with the required doses of treatment dose to healthy tissue. With {sup 90}Y microspheres therapy this optimization applies to the activity of 90y which is administered to the patient, and estimation methods are postulated. in this work are analyzed comparatively these methods, described the early physicists, equations and the limitations of each. Finally, it is concluded that the optimal method to be implemented for the evaluation of the activity of {sup 90}Y manage must be based in a voxel dosimetric model specific for each patient, however, the partitional method may be a good alternative if you don't have the tools to apply the method.

  8. Phosphogypsum applications in the cerrado agriculture and his radiological implications; Aplicacao do fosfogesso na agricultura do cerrado e suas implicacoes radiologicas

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Kerley Alberto Pereira de

    2008-07-01

    The rate of generation of phosphogypsum is approximately 4.8 tons for each ton of phosphoric acid produced. The annual world production can be estimated at 150 million of tons. It is classified as NORM (Naturally Occurring Radioactive Material), in other words, it is a solid waste that contains radioactive elements of natural occurrence from the source rock. The large amount of phosphogypsum produced has been attracting attention of radiological protection institutions and environmental protection agencies in the world, given its high potential for contamination of the environment. In Brazil, this material has been used for several decades, especially for agricultural purposes. In this case, the phosphogypsum is used as a source of calcium and sulfur, as conditioner, and for correction of subsurface soil saturated with sodium, potassium and aluminum. Due to the presence of radionuclides in phosphogypsum, it is necessary to understand the mechanisms for transferring of natural radionuclides in the system soil/plant and to evaluate if the use of phosphogypsum in soil contributes to increased exposition of humans to the natural radioactivity. Experiments were accomplished in a greenhouse with lettuce cultivation in two types of soil (sandy and loamy) fertilized with four different amounts of of phosphogypsum. Samples of phosphogypsum, soil, lettuce and drainage water were analyzed being determined the radionuclides of interest ({sup 238}U, {sup 232}Th, {sup 226}Ra, {sup 228}Ra, {sup 2}'1'0Pb and {sup 210}Po). {sup 238}U and {sup 232}Th have been carried out by neutron activation analysis, Ra, Ra and Pb by gamma spectrometry and Po by alpha spectrometry techniques. Finally, Transfer Factor of soil-plant was calculated and the annual contribution to the effective dose committed due to the ingestion of lettuces of the experiment. Analyses of chemical, physical and mineralogical characterization of soil and phosphogypsum samples were also accomplished. The phosphogypsum was classified as Class II A - Not Dangerous, Not Inert, Not Corrosive and Not Reactive. The soil samples analyzed as were acids, with low content of organic matter and high potential acidity. The average of specific activity for {sup 226}Ra in phosphogypsum samples (252 Bq.kg{sup -1}) was below of the maximum level recommended by USEPA, which is 370 Bq.kg{sup -1} for agricultural use. Although the most of the results of mean specific activity of radionuclides present in samples of lettuce present values below the Minimum Detectable Activity (MDA), the Transfer Factors were estimated for those conditions in which the mean specific activity proved to be superior to MDA. The values ranges from 1.8 10{sup -3} to 2.3 10{sup -2} for {sup 232}Th; 3.5 10{sup -2} to 4.1 10{sup -2} for {sup 226}Ra, 2.4 10{sup -1} to 3.2 10{sup -1} for {sup 228}Ra and 3.5 10{sup -2} to 8.5 10{sup -2} for {sup 210}Po, depending on the type of soil used in the planting of the vegetables. In general, the results obtained in the present study indicated that the mobility of radionuclides in both studied soils was low. The effective doses committed calculated well below the limit of 1 mSv.year{sup -1} established by ICRP, for the public in general (4,3 10{sup -3} mSv for the experiments in loamy soil and 7,5 10{sup -3} mSv for the experiments in sandy soil). It is possible to conclude that from the point of view of the radiological protection, the data obtained in this work demonstrated the viability of the use of phosphogypsum in agriculture of the Cerrado, Brazil. (author)

  9. Radiation protection of patients in diagnostic radiology: implementation of a management system optimization; Proteccion radiologica de pacientes en radiodiagnostico: implantacion de un sistema de gestion de la optimizacion

    Energy Technology Data Exchange (ETDEWEB)

    Corpas Rivera, L.; Devesa Pardo, F. J.; Gamez Jimenez, J. L.; Vallejo Carrascal, C.; Garcia de Diego, A. A.; Amador Vela-Hidalgo, J. J.

    2011-07-01

    The enforcement of quality in diagnostic radiology (Royal Decree 1976/1999 laying down the criteria for quality in diagnostic radiology and Royal Decree 815/2001 to justify the use of ionizing radiations for medical exposure, etc.) and recommendations and European regulations on the matter, is done by carrying out the optimization of the doses received, based on image quality in a continuous process of monitoring of such dose from the dose reference Values ??(VRD ) that the system has allowed to establish for each technique.

  10. Incorporation of a Cuban radiological station to the global net of isotopes in precipitations; Incorporacion de una estacion radiologica cubana a la red global de isotopos en precipitaciones

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez L, O.; Ramos V, E.O.; Prendes A, M.; Alonso A, D.; Caveda R, C.A. [CPHR, Calle 20 No. 4113 e/41 y 47, Playa, C.P. 11300, A.P. 6195, C.P. 10600 La Habana (Cuba)]. e-mail: orlando@cphr.edu.cu

    2006-07-01

    From March, 2002 the West station of the National Net of Environmental Radiological Surveillance located in the Center of Protection and Hygiene of the Radiations, belongs to the Global Net of Isotopes in Precipitations. The obtained isotopic information of the analysis of the samples of monthly monitored precipitations (oxygen-18, deuterium and tritium) its are stored in a database, which is available through Internet. For the acceptance in the Global Net, it was necessary the incorporation to the monitoring of the station the meteorological surface variables. Also it was developed a software for the calculation of the tension of the water steam starting from the values of humidity and temperature. The obtained results in 2002 and published recently, its are inside the range of values reported for these isotopes in the Caribbean area. (Author)

  11. 6. Regional Congress on Radiation Protection and Safety; 3. Iberian and Latin American Congress on Radiological Protection Societies; Regional IRPA Congress. Book of abstracts; 6. Congreso Regional sobre Seguridad Radiologica y Nuclear; 3. Congreso Iberolatinoamericano de Sociedades de Proteccion Radiologica; Congreso Regional IRPA. Libro de resumenes

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-11-15

    The 6th Regional Congress on Radiation Protection and Safety was organized by the Peruvian Radiation Protection Society and the Peruvian Institute of Nuclear Energy, held in Lima, Peru, between 9 and 13 of november of 2003. In this event, were presented 227 papers that were articulated in the following sessions: radiation natural exposure, biological effects of ionizing radiation, instruments and dosimetry, radiological emergency and accidents, occupational radiation protection, radiological protection in medical exposure, radiological environmental protection, legal aspects, standards and regulations, training, education and communication, radioactive waste management, radioactive material transport, nuclear safety and biological effects of non-ionizing radiation. (APC)

  12. Proceedings of the 3. Regional Meeting on Radiological and Nuclear Safety, Regional Meeting on International Radiation Protection Association (IRPA)and 3. Peruvian Meeting on Radiological Protection; 3. Congreso Regional sobre Seguridad Radiologica y Nuclear, Congreso Regional IRPA y 3. Congreso Peruano de Proteccion Radiologica. Libro de Resumenes

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-10-01

    There we show works of the Third Regional Meeting on Radiological and Nuclear Safety held on 23-27 October, 1995 in Cusco-Peru. Latin americans specialists talk about nuclear safety and radiological protection, radiation natural exposure, biological effect of radiation, radiotherapy and medical radiological safety, radiological safety in industry and research. Also we deal with subjects related to radiological safety of nuclear and radioactive facilities, radioactive waste management, radioactive material transport, environmental radiological monitoring program, radiological emergency and accidents, instruments and dosimetry, basic safety standards of protection against radiation. More than 225 works were presented on the meeting.

  13. Proceedings of the 3. Regional Meeting on Radiological and Nuclear Safety. Radiological protection in Latin America and the Caribbean. Vol. 1,2; Actas del 3. Congreso Regional sobre Seguridad Radiologica y Nuclear. Proteccion Radiologica en America Latina y el Caribe. Vol. 1,2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-08-01

    Two volumes contain more than 183 complete papers presented during the Third Regional Meeting on Radiological Protection and Nuclear Safety held on 23-27 October, 1995 in Cusco-Peru. Latin american specialist talk about nuclear safety and radiological protection, radiation natural exposure, biological effect of radiation, radiotherapy and medical radiological safety, radiological safety in industry and research. Also we deal with subjects related to radiological safety of nuclear and radioactive facilities, radioactive waste management, radioactive material transport, environmental radiological monitoring program, radiological emergency and accidents, instruments and dosimetry, basic safety standards of protection against radiation.

  14. Results of special monitoring programs at the sites of nuclear facilities: implications for environmental monitoring program (PVRA); Resultados de los programas especiales de vigilancia radiologica en los emplazamientos de las instalaciones nucleares: implicaciones en el programa de vigialncia radiologica ambiental (PVRA)

    Energy Technology Data Exchange (ETDEWEB)

    Marugan Tovar, I.; Sanz Alduan, M. T.; Luque Heredia, S.; Rey del Castillo, C.; Salas Collantes, R.; Sterling Carmona, A.; Ramos Salvador, L.; Lorente Lorente, P.

    2013-07-01

    In 2008, they occurred in the Spanish plants various events related to the existence on the sites of points or areas of radioactive contamination on the outside of buildings. The events were reported to the CSN in accordance with the provisions of the Instruction CSN IS-10. This presentation brings together the assessments provided, the result of the checks and the consequences of the programs. (Author)

  15. Usual interstitial pneumonitis UIP presenting with Wells grade 3. Can imaging methods help predict further progression of disease?; Fibrosi polmanare idiopatica con grado 3 di Wells all'esordio: possono le metodiche di diagnostica per immagini aiutare a predire la progressione ulteriore della malattia?

    Energy Technology Data Exchange (ETDEWEB)

    Fasano, L.; Pacilli, A. M.G. [Bologna Policlinico, Bologna (Italy). Ist. di Fisiopatologia Respiratoria; Zompatori, M.; Monetti, N. [Bologna Policlinico, Bologna (Italy). Servizio di Medicina Nucleare; Battista, G. [Bologna Policlinico, Bologna (Italy). Ist. di Radiologia, Radiodiagnostica 1; Di Scioscio, V.; Sciascia, N.

    1999-10-01

    Three different grades of idiopathic pulmonary fibrosis can be identified by HRCT pattern. Patients with predominant ground-glass opacity (grade 1) usually improve after treatment and may have a better prognosis. The subjects with a predominant reticular pattern and honeycombing (grade 3.) have irreversible fibrosis and usually do not improve after immunosuppressive therapy. Nevertheless, these patients may worsen even in the absence of HRCT features of the so-called alveolitis. The aim of this report is to investigate the predictive role of some noninvasive imaging methods (HRCT with visual score of disease extent; Gallium scintigraphy; DTPA scintigraphy) in patients with idiopathic fibrosis and a prevalent macroscopic fibrosis at HRCT study. [Italian] La fibrosi polomare idiopatica viene distinta in 3 gradi con diversa prognosi in base alla predominanza di opacita' a vetro smerigliato da alveolite o di fibrosi irreversibile. La fibrosi irreversibile tuttavia non e' necessariamente una situazione stabile ma puo progredire ed evolvere ulteriormente. In particolare i pazienti che gia all'esordio presentano solo i segni della fibrosi possono peggiorare a distanza di tempo nonostante la terapia. Scopo del lavoro e' stato quello di individuare in un gruppo di pazienti con prevalente fibrosi macroscopica quale possa essere un parametro preditivo della successiva evoluzione della malattia.

  16. Evaluation of hemodynamic significance of coronary fistulae. Diagnostic integration between coronary angiography and stress/rest myocardial scintigraphy; Valutazione del significato emodinamico di fistole coronariche artero-venose. Integrazione diagnostica tra angiografia coronarica e scintigrafia miocardica a riposo e sotto sforzo

    Energy Technology Data Exchange (ETDEWEB)

    Rubini, G.; Sebastiani, M. [Bari Univ., Bari (Italy). Cattedra di Medicina Nucleare; Ettorre, G. C. [Foggia Univ., Foggia (Italy). Cattedra di Radiologia; Bovenzi, F. [Ospedale Policlinico, Unita' Operativa di Cardiologia, Bari (Italy)

    2000-12-01

    It is here reported on the importance of the integration of data obtained from digital coronary angiography and stress/rest {sup 99m}Tc sestamibi myocardial perfusion single photon emission tomography in evaluationing the hemodynamic significance of coronary arteriovenous fistulae. Coronary fistulae were detected with coronary angiography in 9 patients. All patients underwent clinical examination, trans thoracic echocardiography, stress electrocardiogram and stress/rest {sup 99m}Tc sestamibi myocardial perfusion single photon emission tomography. Stress/rest {sup 99m}Tc sestamibi myocardial perfusion single photon tomography and stress electrocardiogram showed stress-induced myocardial ischemia in 2 patients. The first patient with familial predisposition and risk factors for ischemic heart disease presented a mesocardic heart murmur on clinical examination. At stress ECG (125 Watt, 153 b/m max frequency 93%, arterial pressure 230 mmHg, max frequency pressure product 35200) ischemic alterations were recorded at the first minute of the second stage of the Bruce protocol. Coronary angiography detected a circumflex artery fistula in the coronary sinus. Stress/rest {sup 99m}Tc sestamibi myocardial perfusion single photon emission tomography for the evaluation of stress/rest perfusion detected a reversible perfusion defect of the proximal portion of the posterolateral and lateral walls, thus confirming the hemodynamic importance of the flow through the fistula during stress cycloergometric testing. In the second patient familial predisposition to ischemic heart disease and previous inferior wall myocardial infarction and non-significant stress ECG, coronary angiography identified a suocclusive stenosis of the right coronary artery and anomaly between the anterior interventricular artery and the left pulmonary artery. The presence of the contrast medium in the left pulmonary artery identified a flow from the left ventricle to the left pulmonary artery. Good angiographic results were obtained after percutaneous coronary angiography of the right coronary artery stenosis. Due to the onset of angina stress/rest {sup 99m}Tc sestamibi myocardial perfusion single photon emission tomography was performed to evaluate stress/rest perfusion (75 Watt, 125 b/m, 88% max frequency, arterial pressure 200 mmHg, double max product 25000 with ST depression of 1.5 mm in V1-V4) and identified an irreversible perfusion defect due to infarction and a reversible perfusion defect of the anterior wall and apex due to ischemia caused by the anomalous flow through the coronary fistula. The correspondence between the site of the coronary artery where the fistula originates, identified by coronary angiography, and the reversible perfusion defects, identified by stress/rest {sup 99m}Tc sestamibi myocardial perfusion single photon emission tomography, indicates that the anomalous flow through the fistula may cause myocardial ischemia. The irreversible perfusion defects of the inferior wall are the result of right coronary artery subocclusive stenosis. Coronary fistulae cause myocardial ischemia only in a small number of patients. Data obtained from single photon emission tomography in evaluation stress/rest myocardial perfusion, correlated with data from coronary angiography, have shown that changes in patients with terminal coronary anomalies may be due to different coronary diseases: ischemia to anomalous flow through the fistula and myocardial infarction to subocclusive right coronary artery stenosis. Stress/rest {sup 99m}Tc sestamibi single photon emission tomography for the evaluation of myocardial perfusion is a reliable means of assessing the functional importance of the terminal coronary anomalies detected by coronary angiography. Evaluation of the hemodynamic importance of the coronary fistulae is indispensable in programming corrective surgery. [Italian] L'articolo descrive l'importanza dell'integrazione dei dati ottenibili con l'angiografia coronarica e con la tomografia con emissione di fotone singolo utilizzando il {sup 99m}Tecnezio- sestamibi come radiofarmaco indicatore della perfusione miocardica a riposo e sotto sforzo per la valutazione del significato emodinamico delle fistole coronariche arterovenose. Le fistole coronariche sono state riconosciute in 9 pazienti mediante angiografia coronarica. Tutti i pazienti sono stati sottoposti a esame obiettivo, ecocardiografia transtoracica, elettrocardiogramma da sforzo e la tomografia ad emissione di fotone singolo per la valutazione della perfusione miocardica a riposo e sotto sforzo. Con la tomografia con emissione di fotone singolo per la valutazione della perfusione miocardica a riposo e sotto sforzo e con l'elettrocardiogramma per la valutazione della perfusione a riposo e sotto sforzo con l'elettrocardiogramma da sforzo sono stati evidenziati segni di ischemia miocardica indotta dallo sforzo in 2 pazienti. (abstract truncated)

  17. Evaluation of knowledge and practice of professionals in radiology, in patient protection, in X-ray examinations in collective environments and in a improving quality of service through training; Avaliacao do conhecimento e da pratica dos profissionais em radiologia, na protecao do paciente, nos exames de raios-X em ambientes coletivos e a melhoria da qualidade do servico atraves do treinamento

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Rogerio Ferreira da, E-mail: reogercosta1@hotmail.com [Universidade Estadual de Goias (UEG), Morrinhos, GO (Brazil)

    2014-07-01

    When there is exposure to ionizing radiation, the probability of developing a stochastic effect increases, and one of the most feared stochastic effects is cancer. Calculations made from data obtained with the population of Hiroshima, showed that these effects have not dose threshold. So it is impossible predict that a specific dose value, will lead to damages and therefore, doses must always be limited. Medical exposures have contributed to the increase in dose received by the populations of countries like Brazil. This is because there was an increase in interventional procedures using ionizing radiation. What has concerned researchers since, many companies did not fit the standards of radiation protection. The proper use of personal protective equipment reduces the exposure of patients and professionals. Trained and knowledgeable of the rules are able to choose the shielding for each type of procedure. So we evaluated the knowledge and radiology professional practice, in protection of patients, who can not be removed from the environment in sinus X-rays and check if the training improves the quality of this service. It was concluded that there is deficiency in knowledge of the rules and failures in protection of patients, and that training with regard to radiological protection increases the level of theoretical knowledge of the professionals involved, and improve their practices with respect to protection, reducing the doses and minimizing the risks involved in medical exposures.

  18. Evaluation of immunity and protection induced in experimental models by soluble extract of Toxoplasma gondii tachyzoites irradiated by {sup 60}Co; Avaliacao da imunidade e protecao induzida em modelos experimentais por extrato soluvel de taquizoitos de Toxoplasma gondii irradiado por {sup 60}Co

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Andrea da

    2013-07-01

    Toxoplasmosis affects 1/3 of the human population and only a vaccine for veterinary use. Gamma radiation alters the proteins making them more immunogenic by oxidation and better antigen presentation in the absence of adjuvants. Radiate soluble extract of RH strain tachyzoites of T. gondii (AgTg), and evaluate its use as a vaccine in BALB/c. Doses below 500Gy not affected and destroyed 2000Gy doses above extract, whereas animals immunized with irradiated extract at 1000, 1500 and 2000Gy had more of specific IgG avidity , compared to native AgTg (p<0,05) . AgTg 1500GY the immunized animals had increased proliferation of splenocytes, phenotyped as CD3+CD4+, CD3+CD8+ and B-lymphocytes immunized animals compared to the native AgTg . Animals immunized by AgTg 1500GY after challenge with strain ME- 49 cystogenic showed lower number of brain cysts and greater survival after challenge with virulent RH. Ionizing radiation in extracts of T. gondii increases the immune response and immune memory in the absence of adjuvants. (author)

  19. Evaluate the action of polymeric additives in protect and recover water and bentonite clay based drilling fluids contaminated by degradation agents; Analise da acao de aditivos polimericos na protecao e recuperacao de fluidos de perfuracao base agua e bentonita contaminados por sais

    Energy Technology Data Exchange (ETDEWEB)

    Campos, L.F.A.; Ferreira, H.S.; Amorim, L.V.; Franca, K.B.; Ferreira, H.C. [Universidade Federal de Campina Grande (UFCG), PB (Brazil)

    2008-07-01

    The aim of this paper is study influences of electrolytes and cellulose polymers on rheological and water loss properties of dispersions of bentonite compositions. Evaluate the action of degradation additives CaSO{sub 4}, MgCl{sub 2} and CaCl{sub 2} and polymeric additives to protect and recover water and clay based. The results show a negative effect of degradation additives the rheological and water loss properties of drilling fluids. The cellulose polymers can be successfully applied to protect and recover of the rheological properties and water loss of the dispersions contaminated. (author)

  20. Development of Nb{sub 2}O{sub 5}|Cu composite as AISI 1020 steel thermal spray coating for protection against corrosion by soil in buried structures; Desenvolvimento e uso do composito de Nb{sub 2}O{sub 5}|Cu como revestimento aplicado por aspersao termica sobre o aco AISI 1020 para protecao contra a corrosao pelo solo em estruturas enterradas

    Energy Technology Data Exchange (ETDEWEB)

    Regis Junior, Oscar [Universidade Tecnologica Federal do Parana, Ponta Grossa, PR (Brazil). Dept. de Mecanica; Silva, Jose Maurilio da; Portella, Kleber Franke [Instituto de Tecnologia para o Desenvolvimento, Curitiba, PR (Brazil). Dept. de Pesquisa em Engenharia Civil; Paredes, Ramon Sigifredo Cortes, E-mail: regis@utfpr.edu.br [Universidade Federal do Parana, Curitiba, PR (Brazil). Dept. de Mecanica

    2012-07-01

    An Nb{sub 2}O|Cu corrosion-resistant coating was developed and applied onto AISI 1020 steel substrate by Powder Flame Spray. A galvanostatic electrochemical technique was employed, with and without ohmic drop, in four different soils (two corrosively aggressive and two less aggressive). Behavior of coatings in different soils was compared using a cathodic hydrogen reduction reaction (equilibrium potential, overvoltage and exchange current density) focusing on the effect of ohmic drop. Results allow recommendation of Nb{sub 2}O{sub 5}|Cu composite for use in buried structure protection. (author)

  1. Study of application of protective measures for the public and remediation of contaminated areas in case of nuclear and / or radiological accidents in Brazil; Estudo da aplicacao de medidas de protecao para o publico e de remediacao de areas contaminadas em caso de acidentes nucleares e/ou radiologicos no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Diogo Neves Gomes da

    2011-07-01

    Since the radiological accident in Goiania in 1987, the IRD (Institute of Radiological Protection and Dosimetry - IRD / CNEN) has been developing tools to support decision-making processes after a nuclear or radiological accident which leads to an environmental contamination and to an exposure of individuals the public These processes include the establishment of a supporting multicriteria model, which involves the application of protective and remediation measures of contaminated areas in tropical environments. In this study, it was performed an evaluation of the efficiency of these measures in order to determine the consequences of their implementation, based on results obtained from the code SIEM (Emergency Integrated System), which constitutes an environmental mode1 developed at IRD to simulate this type of accident. In order to perform this evaluation, it was first developed a database containing descriptions of various protection/remediation measures, which could be applied nationwide. Afterwards, some basic scenarios were established, considering the environmental, housing and food characteristics of the population of the vicinity of the nuclear power plants in Angra dos Reis (state of Rio de Janeiro). Thus, the accident simulations were carried out separately containing releases of {sup 137}Cs, {sup 90}Sr and 131 I. The results showed that the dose reduction varies according to the extent and the timing of the remediation measure applied. Although it is possible to establish some basic guidelines, generic solutions are not recommended, since the resulting doses are highly dependent on the actual situation. Any decision-making process should be made case by case, according to the actual conditions of the affected area and to the occupation characteristics and use of the affected areas, considering the characteristics of the source term of contamination, the time of the year in which the accident occurs, the local agricultural practices and food habits of real people affected. For both types of area, it was observed that it would be appropriate to assign the security measures according to three criteria: (i) its efficiency in reducing the doses in the first year, (ii) its efficiency in reducing the dose of long-term and (iii) the effect of delay in implementing the measure efficiency in reducing doses. Finally, the results of this work will be complemented in the database in order to provide support for multi-criteria analysis in decisionmaking process after this type of accident. (author)

  2. Parkinson's Disease Videos

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    Full Text Available ... Parkinson Conference: Lessons Learned CareMAP: Medications and General Health Part 2 How Does the DBS Device Work? ¿Cómo Se Diagnostica el Parkinson? CareMAP: Cambios para ...

  3. Implications of the new dose limit crystalline in operational radiation protection in interventional medicine; Implicaciones del nuevo limite de dosis en cristalino en la proteccion radiologica operacional en intervencionismo

    Energy Technology Data Exchange (ETDEWEB)

    Roch Gonzalez, M.; Garcia Castanon, P.; Giner Sala, M.; Rodriguez Martin, G.; Espana Lopez, M. L.

    2013-07-01

    The objective of this study is to evaluate the implications of this new limit of equivalent dose in the lens can be assumed in the radiation protection of cardiologists, radiologists, nursing professionals, etc. that perform their work in units of intervention, both in terms of additional protective measures and the classification of them as workers exposed. (Author)

  4. Specialized consulting in radiological safety to the North Central Hospital of high specialty, PEMEX. V. November of 2001; Asesoria especializada en seguridad radiologica al Hospital Central Norte de alta especialidad, PEMEX. V. Noviembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2002-01-15

    It is a report of a specialized consulting in radiological safety that to be carried the ININ to PEMEX for the North Central Hospital of High Specialty, to maintain the sanitary license for the use of X ray equipment of medical diagnostic, and guarantee these services with a program of quality assurance. To give fulfilment to that requests it is programmed a technical assistance monthly, with reports of results during the development of the service. In this document it is carried a report of the advances and results in the month of November of the 2001, where the following documents are analyzed: Manual of radiological safety, program of quality assurance, operation procedures, procedure of maintenance team, procedure of medical radiological control of the specialized personnel; also are annotate the obtained results and their observations. (Author)

  5. Specialized consultant in radiological safety to the Salamanca regional hospital, PEMEX. VI. - December of 2001; Asesoria especializada en seguridad radiologica al hospital regional Salamanca, PEMEX. VI.- Diciembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The Salamanca regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  6. Specialized consultant in radiological safety to the clinical north central hospital of high speciality, PEMEX. IV. - December of 2001; Asesoria especializada en seguridad radiologica a la clinica hospital central norte de alta especialidad, PEMEX. IV.- Diciembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The clinical north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  7. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. IV. - October of 2001; Asesoria especializada en seguridad radiologica a la clinica al hospital central sur de alta especialidad, PEMEX. IV.- Octubre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  8. Specialized consultant in radiological safety to the Tula general hospital, PEMEX. V. - November of 2001; Asesoria especializada en seguridad radiologica al hospital general Tula, PEMEX. V.- Noviembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The Tula general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  9. Specialized consultant in radiological safety to the Salamanca regional hospital, PEMEX. I. - July of 2001; Asesoria especializada en seguridad radiologica al hospital regional Salamanca, PEMEX. I.- Julio de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A

    2001-09-15

    The Salamanca regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  10. Specialized consultant in radiological safety to the Salamanca regional hospital, PEMEX. V. - November of 2001; Asesoria especializada en seguridad radiologica al hospital regional Salamanca, PEMEX. V.- Noviembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The Salamanca regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  11. Specialized consultant in radiological safety to the north central hospital of high speciality, PEMEX. II. - August of 2001; Asesoria especializada en seguridad radiologica al hospital central norte de alta especialidad, PEMEX II.- Agosto de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Rodriguez A, F.; Garcia A, J

    2001-10-15

    The north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)0.

  12. Specialized consultant in radiological safety to the Tula general hospital, PEMEX. III.- September of 2001; Asesoria especializada en seguridad radiologica al hospital general Tula, PEMEX. III.- Septiembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Rodriguez A, F.; Garcia A, J

    2001-12-15

    The Tula general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  13. Radiological surveillance in Mexico, derived of the accident of the Fukushima Daiichi nuclear power plant; Vigilancia radiologica en Mexico, derivado del accidente en la central nuclear de Fukushima Daiichi

    Energy Technology Data Exchange (ETDEWEB)

    Aguirre G, J.; Nohpal J, X., E-mail: jaguirre@cnsns.gob.mx [Comision Nacional de Seguridad Nuclear y Salvaguardias, Departamento de Vigilancia Radiologica, Dr. Barragan No. 779, Col. Narvarte, 03020 Mexico D. F. (Mexico)

    2012-10-15

    March 11, 2011 an earthquake of 9.0 grades in the Richter scale, originated in the coast of Tohoku, Japan, in the Pacific Ocean gave origin to a tsunami that caused an accident in the Fukushima Daiichi nuclear power plant. Due to this accident, derived of the loss of the reactor cooling system, as well as of the prolonged absence of alternating and direct current, radiological protection actions were realized without being able to avoid the liberation of radioactive material to the atmosphere and ocean. The radiological impact of these liberations, not only in Japan but around the world, mainly in the north hemisphere of the Earth, was analyzed by means of environmental dose measurements and radionuclide concentrations in soil and water, among others. In the Mexico case, air samples data were obtained, as well as environmental dose celerity and full-length counts of the people coming from Japan near the disaster area. The present work contains the obtained results of the realized measurements in Mexico, same that have been used to make a summary and analysis of the dispersion in the environment in several countries of the world. (Author)

  14. Adaptation of the dynamic model for radiological assessment of nuclear accident in rural area under conditions of tropical climate; Adaptacao do modelo dinamico para avaliacao radiologica de acidente nuclear em area rural nas condicoes de clima tropical

    Energy Technology Data Exchange (ETDEWEB)

    Vinhas, Denise Martins

    2004-07-01

    Following an accidental release of radionuclides to the atmosphere that leads to the contamination of large areas, a detailed and fast methodology to assess the prognosis of public exposure is needed, in order to estimate radiological consequences and propose and optimize decisions related to the protection of the public. The model ECOSYS has been chosen to integrate the SIEM, the Integrated Emergency System developed by IRD/CNEN, to assess the doses at the short, medium and long term to the public after an accidental contamination of rural areas. The objective of this work is to perform the adaptation of the model ECOSYS to be used in Brazil to assess public exposure and support decision processes regarding the implementation of protective measures but also to guide the need for studies and research aiming to improve the adequacy of estimates to the actual Brazilian situation. The area select for reference to this work consists on the 50 km radius area surrounding the Brazilian nuclear power plants, located at Angra dos Reis County, in the state of Rio de Janeiro. The methodology included the definition of criteria to select agricultural cultures and animals to be simulated, taking into account both the availability of the production at the selected area and the relevance of the food to the population regional diet. Radionuclides included in this study were {sup 137}Cs, {sup 90} Sr and {sup 131} I. A large survey has been performed to gather data related to both agricultural practices and behavior of radionuclides in the selected agricultural-systems. The results of simulation indicated the relevance of the knowledge of local aspects on the estimated doses. Important factors included the kind of products produced, seasonality, agricultural practices, animals feed practices, kind of soil, and ingestion habits of the population. (author)

  15. Radiological protection in pelvis studies by computed tomography in Rando phantom by means of thermoluminescent dosimetry; Proteccion radiologica en estudios de pelvis por tomografia computada en fantoma Rando mediante dosimetria termoluminiscente

    Energy Technology Data Exchange (ETDEWEB)

    Madrid G, O. A.; Rivera M, T. [IPN, Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada, Calz. Legaria 694, Col. Irrigacion, 11500 Mexico D. F. (Mexico); Azorin N, J., E-mail: riveramt@hotmail.com [Universidad Autonoma Metropolitana, Unidad Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, 09340 Mexico D. F. (Mexico)

    2011-11-15

    The risks of the radiation in computed tomography (CT) studies have been recently reported in many works. Caution should be had in the environment of the exploration in the patient. To maintain the radiation doses so low as is reasonably possible during the CT examination, is important that in the CT the parameters are correctly adjusted for each patient with the purpose of having the minimum dose in the application of the study. Thermoluminescent dosimeters were used to measure the absorbed dose and to measure the CT profiles of dose. The distribution of the dose in the CT abdominal examination in the simulated patients was evaluated. The exploration parameters of the CT were 130 kV, 90 m A, with a cut thickness of 3 mm and a field of 1.0 in the pitch. The assignment dose was increased in an axis along the direction of the study, they were also studied. The equivalent dose due to the direct and dispersed radiation was determined during the procedures of the irradiation in pelvis examinations, for the next areas to the study like is in specific the critical organ (gonads) that is the terminal area of the exploration. During this study of 26 cuts was obtained an equivalent dose to critical organ of 14.27 mSv. (Author)

  16. Studies on the radiological assessment and modeling of the biosphere in radioactive waste management in Spain; Estudio sobre la evaluacion radiologica y modelizacion de la biosfera en la gestion de residuos radioactivos en Espna

    Energy Technology Data Exchange (ETDEWEB)

    Perez-Sanchez, D.; Trueba, C.; Robles, B.

    2011-07-01

    Assessments of long-term safety in radioactive waste management means that the annual radiation dose due to the possible release of radionuclides to the biosphere does not exceed regulatory limits for members of the public. To quantify these doses should first develop models that describe the behavior of radionuclides in the environment that could also calculate the concentrations in different compartments of the biosphere, then estimated radiation doses to humans and the environment through the different routes of exposure. This paper describes recent results obtained by developing projects related to safety assessment of the biosphere, which include several studies.

  17. Implementation of a radiological safety management system in a hospital of Mexico City; Implementacion de un sistema de gestion de seguridad radiologica en un hospital de la Ciudad de Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Martinez V, D.; Rivera M, T. [CICATA-IPN, 11500 Mexico D.F. (Mexico); Velez D, V. [INER, 14000 Mexico D.F. (Mexico)

    2007-07-01

    Full text: The reflection of this work is based in some radiological accidents that its have happened in some hospital centers or of research. The over exposure of some people is due to the pursuit of the procedures, the lack of quality assurance of the equipment or the inappropriate actions of the technicians. In Mexico one has seen in several hospitals the lack of existence of a Quality Assurance Program to prevent the accidents, the execution of the same ones and those good practices and the lack of Safety Culture makes that the hospital radiological safety it is faulty. The objective of the present work is the implementation of a radiological safety management in a hospital of Mexico City. (Author)

  18. Program for the radiological protection of the embryos-fetuses due to the medical exposure of him mother; Programa para la proteccion radiologica del embrio-feto debido a la exposicion medica de su progenitora

    Energy Technology Data Exchange (ETDEWEB)

    Lopez B, G M; Martinez G, A; Cardenas H, J; Gonzalez R, N; Valdes R, M; Zaldivar H, W [CPHR, Calle 20 No. 4113 e/41 y 47, Playa C.P. 11300, La Habana (Cuba)

    2006-07-01

    In the last years the organizations in charge of the regulation in matter of radiological protection, its have adopted measures to minimize the risks derived of the medical exposures, paying special attention to those that involve women in age of procreation, gestating and in period of lactation, because the embryo - fetus and the newborn babies ones are very vulnerable to the risks of the ionizing radiations, which can end up producing them multiple effects of variable severity. In Cuba, a Maternal-children program that includes the genetic advice to the pregnant woman from the medical point of view exists but didn't so the evaluation of the radiological risk; which is only carried out by the Medical Surveillance Service of the Protection and Hygiene of the Radiations Center (CPHR), without that mediates an official link among both parts and whose existence is only known by a reduced group of professionals of the health and of specialists in Radiological Protection. On the other hand is not established a strategy at national level for the differentiated information and systematic in these topics that it contributes to the control of the exposures of the embryo fetus and the breast-fed baby. Keeping in mind the above-mentioned the specialists of the CPHR have elaborated a proposal of national program for the radiological protection of the embryo- fetus due to the medical exposure of its progenitor. In the same one it is settles down the interrelation between work groups and multidisciplinary institutions to achieve the detection, communication and consultant ship of the cases of exposure to the fetus or breast-fed baby that happen in the country and at the same time include the training so much of the professionals of the health like of the public in general. Presently work the program and the elements that conform it among those that are, the on-line system developed for the automation of the medical dosimetric evaluation, the technician-methodological documents on this topic as well as the informative and instructive tools directed to the professionals and the public in general are described. (Author)

  19. The Sub-directorate of Operational Radiological Protection is an area of the CSN that oversees the safety of the workers; La Subdireccion de Proteccion Radiologica Operacional, un area del CSN que vela por la Seguridad de los trabajadores

    Energy Technology Data Exchange (ETDEWEB)

    Scialdone Garcia, A.

    2016-08-01

    The safety of radioactive facilities is an essential part of the radiological protection of the more than 100,000 workers who are professionally exposed to ionising radiations. The Sub-directorate of Operational Radiological Protection is in charge of this task and of authorising the more than 1,340 radioactive facilities that are distributed across the country and ensuring their safety. (Author)

  20. Radiological protection and routinary controls of an activimeter with a cesium and barium sources in an nuclear medicine center; Proteccion radiologica y controles rutinarios de un activimetro con fuentes de cesio y bario en un centro de medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Morales L, M.E. [IPEN INEN, Centro de Medicina Nuclear, Av. Aviacion 3799, Lima 34 (Peru)]. e-mail: toyoco3000@hotmail.com

    2006-07-01

    In the present work the results when carrying out the routine controls in a Deluxe Isotope (Calibrator II) equipment, with some sources of Cesium 137 and Barium 133, in a Nuclear Medicine Center that operates from the year 1983 in a modern one construction inside the Institute of Neoplastic Illnesses (INEN) are shown. Taking in account the Radiological Protection measures to verify if the equipment responds to the personnel's demands in the measurements of activities of the diverse radionuclides that are used in different types of exams that are carried out in this Nuclear Medicine Center are the objectives of this work. This Center was equipped initially with donated equipment by the International Atomic Energy Agency (IAEA) with those that it develops assistance, educational works and of research, giving services to patients of the INEN and other public and private medical centers. (Author)

  1. Radiological characterization of ceramic tiles made in the community of Valencia and its use as a construction material; Caracterizacion radiologica de baldosas ceramicas fabricas en la comunidad Valenciana y su uso como material de construccion

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz, J.; Ballesteros, L.; Gallardo, S.; Martorell, S.

    2014-07-01

    In this presentation, radiological characterization is done by gamma spectrometry various types of ceramic tiles and use as building material in relation to the potential radiological risk deriving from this use are discussed. The discussion includes both the rules of the countries being targeted as the new basic security policy (BSS) issued by the EU 2014. (Author)

  2. Internal dosimetry for the radiological protection of the patient in the therapy with I-131; Dosimetria interna para la proteccion radiologica del paciente en la terapia con I-131

    Energy Technology Data Exchange (ETDEWEB)

    Deluca, G.M.; Rojo, A.M. [Autoridad Regulatoria Nuclear, Av. Del Libertador 8250 (C1429BNP), Buenos Aires (Argentina)]. e-mail: gdeluca@cae.arn.gov.ar

    2006-07-01

    In the patients with differentiated thyroid cancer (CADIT) subjected to therapy with radiopharmaceuticals should be considered the possible risk of sharp depression of the bone marrow like consequence of the intolerance to the quantity of administered activity. The manifestation of the myelotoxicity can limit in a substantial way the future treatments and to deteriorate the predict of resolution of the illness. In this work it shows the physical-mathematical mark of a methodology for the estimated absorbed dose in bone marrow based in the MIRD scheme whose objective is to protect the one patient of the noxious and undesirable effects of the internal radiotherapy in organs that are not target of the same one. The formalism incorporates specific information of the patient and also peculiar characteristics of the internal therapy in patient with CADIT. The considerations are the following ones: (1) the main organ to protect is the bone marrow: (2) the accumulated activity, in bone marrow, it is obtained starting from measurements in blood: (3) the used isotope almost exclusively in this type of therapies is the {sup 131}I; (4) it is used as radiopharmaceutical at the {sup 131}INa that it is characterized to be a simple, inorganic and small molecule: (5) the statistical incidence of the CADIT is bigger in women than in men. It is explained for that it was selected the formalism that is presented, the principles on which it is sustained which are their reaches and their limitations. They are also presented future innovations that can be implemented to effects of improving the estimates. The work is framed inside the thematic of the medical applications of open radioactive sources and it constitutes a contribution to the invigoration of the internal therapy with radiopharmaceuticals. This is due to that the methodology of dose estimation presented supplements with a theoretical biophysics base the protocols of empiric prescription broadly used in this practice. For these reasons, the dosimetric information obtained, adjusted to each concrete case, it contributes to improve the radiological protection of the patient. (Author)

  3. Communication with the Public in a Nuclear or Radiological Emergency. Emergency Preparedness and Response (Spanish Edition); Comunicacion con el publico en caso de emergencia nuclear o radiologica. Preparacion y respuesta en caso de emergenicia

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-04-15

    The aim of this publication is to provide practical guidance for public information officers on the preparation for and response to a nuclear or radiological emergency, and to fulfil in part functions assigned to the IAEA in the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency (Assistance Convention), as well as meeting requirements stated in IAEA Safety Standards Series No. SF-1, Fundamental Safety Principles, and in IAEA Safety Standards No. GS-R-2, Preparedness and Response for a Nuclear or Radiological Emergency. Under Article 5(a)(ii) of the Assistance Convention, one function of the IAEA is to collect and disseminate to States Parties and Member States information concerning methodologies, techniques and results of research relating to response to nuclear or radiological emergencies. IAEA Safety Standards Series No. GS-R-2 establishes the requirements for an adequate level of preparedness for and response to a nuclear or radiological emergency in any State, and specifies that 'All practicable steps shall be taken to provide the public with useful, timely, truthful, consistent and appropriate information throughout a nuclear or radiological emergency' in the response phase. It also requires 'responding to incorrect information and rumours; and responding to requests for information from the public and from the news and information media'. This publication provides guidance in the form of action guides and information sheets that can be easily applied by a State to build a basic capability to respond to a nuclear or radiological emergency. This guidance should be adapted to fit the user State's organizational arrangements, language, terminology, concept of operation and capabilities. This publication is published as part of the IAEA's Emergency Preparedness and Response series and complements the Manual for First Responders to a Radiological Emergency in the parts related to the tasks of public information officers. It takes account of the lessons learned from past emergencies, including the accident at TEPCO's Fukushima Daiichi Nuclear Power Station in 2011, and from research, while ensuring consistency with IAEA Safety Standards Series No. GS-R-2.

  4. The National Institute of Nuclear Research (ININ) and its participation in the External Radiological Emergency Plans at Laguna Verde Power plant; El ININ y su participacion en el Plan de Emergencia Radiologica Externo de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Suarez, G. [Instituto Nacional de Investigaciones Nucleares, Departamento de Proteccion Radiologica, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1998-07-01

    In this article it is described the form in which the ININ participates in the External Radiological Emergency Plan at Laguna Verde Power plant. It is set the objective, mission and organization of this plan. The responsibilities and activities that plan has assigned are mentioned also the organization to fulfil them and the obtained results during 9 years of participation. (Author)

  5. About the necessity to update the Radiological safety and protection regulations of the National Institute of Nuclear Research (ININ); Sobre la necesidad de actualizar el reglamento de proteccion y seguridad radiologica del ININ

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez R, J.T. [Instituto Nacional de Investigaciones Nucleares, Salazar (Mexico). Dept. de Metrologia

    1997-07-01

    It is argued the necessity to update the Radiological safety and Protection regulations (Review 3) of ININ, with the purpose that it implements the ICRU operative magnitudes system. Such a system used with radiological protection purposes. The objective of this system is to do an estimation of the effective equivalent dose H{sub E} and/or the Effective dose E, proposed in the ICRP 26 and ICRU 60 dose limits systems respectively. (Author)

  6. Results of the evaluation of the radiation protection in several nuclear medicine departments and recommendations for its optimization; Resultados de la evaluacion de la proteccion radiologica en varios departamentos de medicina nuclear y recomendaciones para su optimizacion

    Energy Technology Data Exchange (ETDEWEB)

    Bejerano, Gladys Lopez; Jova Sed, Luis; Diaz, Efren [Centro de Proteccion y Higiene de las Radiaciones, La Habana (Cuba)]. E-mail: gladys@cphr.edu.cu; jova@cphr.edu.cu [and others

    2001-07-01

    For the evaluation of the radiological safety in several Nuclear Medicine departments a survey was processed and applied that gathers the related mainly to: aspect of the licensing and fulfillment of the establish in this, the program of individual radiologic monitoring and his evaluation, functions that serve to the radiologic protection system, program of qualification and training of the personnel, equipment and mean of radiation protection, program of monitoring of the area of work, characteristic of the premises, management of remainder radioactive, program of quality control, aspect related to the radiation protection in the procedure of diagnosis with the investigation; as well as to pregnant patients and those related to the investigation to accidental medical exhibitions. In the work a systematization of the main results had been done, insisting on the evaluation of the doses received by the workers occupational exposed. A comparison of the activities administered to the patients by different departments and the internationally recommended ones, explaining the found differences. In addition the main recommendations were exposed to obtain in these departments an optimization of the radiological safety.

  7. Specialized consultant in radiological safety to the Salamanca regional hospital, PEMEX. II. - August of 2001; Asesoria especializada en seguridad radiologica al hospital regional Salamanca, PEMEX. II.- Agosto de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The Salamanca regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  8. Specialized consultant in radiological safety to the Reforma peripheral clinic, PEMEX. - III. - September and October of 2002; Asesoria especializada en seguridad radiologica a la clinica periferica Reforma, PEMEX.- III.- Septiembre y Octubre de 2002

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Rodriguez A, F.; Garcia A, J

    2003-02-15

    The Reforma peripheral clinic, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the clinic can conserve its respective sanitary license.(Author)

  9. Services of radiological protection: as sizing the human and material resources; Como dimensionar los recursos humanos y materiales: un proyecto del Foro de Proteccion Radiologica en el Medio Sanitario

    Energy Technology Data Exchange (ETDEWEB)

    Rueda Guerrero, M. D.; Sierra Perler, I.; Lorenzo Perez, P.

    2014-07-01

    Discussion of radiological protection in the Middle Health has formed a task force to develop a technical document recommendatory to help plan and evaluate resources radiological protection services. (Author)

  10. Specialized consultant in radiological safety to the Reforma peripheral clinic, PEMEX. - I. - May-June of 2003; Asesoria especializada en seguridad radiologica a la clinica periferica Reforma, PEMEX.- I.- Mayo-Junio de 2003

    Energy Technology Data Exchange (ETDEWEB)

    Torres P, A.; Garcia A, J.; Rodriguez A, F

    2003-07-15

    The Reforma peripheral clinic, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the clinic can conserve its respective sanitary license.(Author)

  11. Experience of South Regional Delegation in radiation protection diffusion by means of policies of social communication; Experiencia de la Delegacion Regional Sur en la difusion de seguridad radiologica mediante politicas de comunicacion social

    Energy Technology Data Exchange (ETDEWEB)

    Malagamba, Eduardo; Canibano, Javier; Gatica, Nidia [Autoridad Regulatoria Nuclear, San Carlos de Bariloche (Argentina). Delegacion Regional Sur

    2001-07-01

    The diffusion of the criteria and principles of radiological safety that are applied to the different practices of use of radioactive materials, is one of the ways to diminish the risks of its use besides enhance the perception of risk in society. Since June of 1999, the Nuclear Regulatory Authority in Argentina have intensified the dissemination of information for the public in general, specialized personnel indirectly involved with radioactive substances and the users in general of radioactive materials.This work has as objective to present the experience of South Regional Delegation with information dissemination policy and its results.

  12. Validation of radiological efficiency model applied for the crops/soils contaminated by radiocaesium; Validacion de un modelo de eficiencia radiologica de contramedidas aplicables a suelos agricolas contaminados por radiocesio

    Energy Technology Data Exchange (ETDEWEB)

    Montero, M.; Vazquez, C.; Moraleda, M.; Claver, F. [Ciemat. Madrid (Spain)

    2000-07-01

    The differences shown in the radiological efficiency applying the same agrochemical interventions on a range of contaminated agricultural scenarios by long-live radionuclides have conducted the radioecological studies to quantify the influence of local characteristics on the soil-to-plant transference. In the framework of the Decision Support Systems for post-accidental environmental restoration, a semi-mechanistic approach has been developed to estimate the soil-to-plant transfer factor from the major properties underlying the bioavailability of radiocaesium in soils and the absorption capacity by the crop. The model describes, for each soil texture class, the effects of time and K status on the transference of radiocaesium to plants. The approach lets to estimate the actual and the available minimum transference and to calculate the optimum amendment warranting the maximum radiological efficiency on an specific soil-crop combination. The parameterization and validation of the model from a database providing information about experimental transference studies for a collection of soil-crop combinations are shown. (Author) 4 refs.

  13. Radiologic inspection in an office built rod contaminated with radioactive material, in Tiaquepaque, Jalisco, Mexico; Inspeccion radiologica en una oficina construida con varilla contaminada con material radiactivo, en Tlaquepaque, Jalisco, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Salas Mar, B.

    2011-07-01

    Note that in 1983 took place {sup T}he most important radiological accident occurred in Mexico in recent years occurred in Ciudad Juarez, Chihuahua, consisting ea involuntary casting a source of Cobalt-60 (originally intended for medical use in teletherapy) and manufacture of rods for the construction and steel bases for tables, in the smelter {sup S}teel de Chihuahua{sup ,} so presumably, that the rods of the office of Tlaquepaque, come from the radiological accident.

  14. Participation of the ININ in the external radiological emergency plan of the Laguna Verde power plant; Participacion del ININ en el plan de emergencia radiologica externo de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Martinez S, R; Cervini L, A [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1991-07-01

    The planning of performances in radiological emergencies, with the object of reducing the consequences as much as possible on the population to accidental liberations of radioactive material coming from Nuclear power plant, it has been of main interest in the nuclear community in the world. In Mexico it has not been the exception, since with the setting in march of the Laguna Verde nuclear power plant exists an executive program of planning for emergencies that it outlines the activities to follow trending to mitigate the consequences that are derived of this emergency. As integral part of this program this the External Plan of Radiological Emergency (PERE) that covers the emergencies that could leave the frontiers of the Laguna Verde power plant. In the PERE it settles down the planning, address and control of the preparation activities, response and recovery in emergencies, as well as the organization and coordination of the institutions that participate. The National Institute of Nuclear Research (ININ), like integral part of these institutions in the PERE, has an infrastructure that it allows to participate in the plan in a direct way in the activities of 'Control of the radiological exhibition the response personnel and control of water and foods' and of support way and consultant ship in the activities of 'Monitoring, Classification and decontamination of having evaluated' and 'Specialized medical radiological attention'. At the moment the ININ has a radiological mobile unit and this conditioning a second mobile unit to carry out part of the activities before mentioned; also accounts with 48 properly qualified people that directly intervene in the plan. In order to guarantee an adequate response in the PERE an organization it has been structured like that of the annex as for the personnel, transport, team, procedures and communication system, with the objective always of guaranteeing the security and the population's health in emergency situations in the Laguna Verde Nuclear power plant. (author)

  15. Proceedings of the 4. National Congress of the Mexican Society of Radiological Safety C.A; Memorias del 4. Congreso Nacional de Sociedad Mexicana de Seguridad Radiologica A.C

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-07-01

    In these sessions it had the participation of personalities of diverse internationally grateful organizations, with exhibitions about the situation of the nuclear industry of power, the applications of the radiations and the radiological safety in the international context. Also its were presented works about Emergency plans in Nuclear facilities and plants, Nuclear medicine, Food processing, Thermal neutrons, Neutron dosimetry, Charged particles, Thermoluminescence, Industrial radiography, Radiation monitoring, all of them with the participation of specialists with international prestige. The 41 works that are presented in the technical sessions come from Spanish, Brazilian, Greek and Mexican grateful institutions. All they are a sample of the intense activity in investigation and development in the areas of the nuclear industry as of the radiological safety. This congress reveals the impulse that the nuclear community grants to the formation of human resources.

  16. Post-graduate course on radiation protection and nuclear safety. Vol. 1,2; Curso de post-grado en proteccion radiologica y seguridad nuclear. Tomo 1,2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The course handbook on radiation protection and nuclear safety containing two parts some was prepared mainly by scientists of the Nuclear Regulatory Authority (ARN) of the Argentine Republic, under the auspices of the International Atomic Energy Agency. The contents o this handbook have the principals aspects: radiation detection, radio dosimetry, biological effects of the ionizing radiation, occupational exposure, environmental effects, contamination and decontamination, radioactive waste management, transport of radioactive materials, medical and industrial applications and the Argentine regulatory system.

  17. Proceedings of the 7th National Congress of the Mexican Society of Radiological Safety C.A.; Memorias del 7. Congreso Nacional de Sociedad Mexicana de Seguridad Radiologica A.C.

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-09-01

    The Mexican Society of Radiological Safety, celebrates on this time the 100 Anniversary of the radioactivity discovery, phenomenon coined by Marie Curie in 1898 and discover by Henry Beckerel in March 1896, when both were working with natural radioactive isotopes. Subsequently, on the new age of Physics, the use of radioactive isotopes was impulse by the invention of Cyclotron made by Dr. Ernest Orland Lawrence in the United States, which permits the manufacturing of tens of artificial radioactive isotopes which convert its in an indispensable tool in Medicine, Industry, Research, Agriculture and other disciplines, by its wide variety of applications, creating the radiological safety culture by the implicit risk in the use of these materials. From its creation in 1976, our society was removing to promote the radiological safety and two years each celebrates its National Congress removing specialists in this discipline and invite new generations to awake their interest by this useful field. (Author).

  18. Initial evaluation of the safety culture in a service of radiation physics and radiation protection; Evaluacion inicial de la cultural de seguidad en un servicio de radiofisica y proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Melgar Perez, J.; Orellana Salas, A.; Arrocha Acevedo, J. F.

    2011-07-01

    Health care should ensure the safety of a number of people, equipment and clinical practices to achieve quality service offering. Work systems should minimize the risks of health care and the environment for patients, families and professionals, avoiding as much as possible, errors that may be committed. A rigorous and methodologically sound study of the circumstances in which errors occur will help to establish secure systems that can prevent errors regardless of the human factor, detecting latent conditions that are the root causes of the errors on the need influence.

  19. Academic training of radiation protection human resources in the X-ray medical diagnostic; Formacion academica de recursos humanos en proteccion radiologica en el diagnostico medico con rayos X

    Energy Technology Data Exchange (ETDEWEB)

    Gaona, E. [Universidad Autonoma Metropolitana, Unidad Xochimilco, Calz. del Hueso 1100, Col. Villa Quietud, Mexico 04960 D. F. (Mexico)

    2008-12-15

    The current regulation, established by NOM-229-SSA1-2002 standard, {sup T}echnical requirements for facilities, health responsibilities, technical specifications for equipment and facilities for radiation protection in medical diagnosis with X-rays,{sup t}hat should be credited refresher courses, and training in radiation safety in accordance with current regulations, however, has been observed that the assistance and accreditation of courses is basically to cover administrative and regulatory requirements and therefore does not necessarily cover needs of the patient to radiation protection in the use of old and new technologies. David Brenner and Eric Hall claim that between 1.5 and 2% of all cancers in the USA may be attributable to exposure to X-ray computerized tomography techniques, given the intensive use of these techniques and the patient dose ranges in which incurred. While this is not debatable, if it is, the alternative does not seem to be abandoning the use of computerized tomography, because it gives them undoubted benefits with respect to invasive procedures. Deserves mention concerns the use of computerized tomography in children using scanning protocols designed for adults, in which case it incurs in 5 times higher dose. An additional warning about unwarranted use of computerized tomography is a procedure of this technique in abdomen resulting in an equivalent dose to 298 times that of a mammogram. Additional aspects such as biological effects (including deterministic) of both medical staff and patients of interventional procedures further reinforces the idea that there are education programs in radiation protection. Attention must put in the new generations, including in the curricula of medical residencies in radiology, endoscopy, cardiology and orthopedic, the education (no emerging courses) in radiation protection, radiobiology, radiology physics, and other topics, but previously must have medical physicists in radiology available to train new generations. (Author)

  20. Specialized consultant in radiological safety to the Ciudad del Carmen general hospital, PEMEX. III.- September and October of 2002; Asesoria especializada en seguridad radiologica al hospital general Ciudad del Carmen, PEMEX. III.- Septiembre y Octubre de 2002

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Rodriguez A, F.; Garcia A, J

    2003-02-15

    The Ciudad del Carmen general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  1. Evaluation of porous vitreous carbon or silicon implants by radiology in rat's skull; Avaliacao radiologica de implantes de carbono vitreo poroso ou silicone em cranio de ratos

    Energy Technology Data Exchange (ETDEWEB)

    Vaccari-Mazzetti, Marcelo Paulo; Kobata, Celio Toshiro [Lusiada University of Santos, SP (Brazil). Hospital Defeitos da Face. Dept. of Surgery]. E-mail: mmgvaccari@ig.com.br; Fabiani, Paulo [Lusiada University of Santos, SP (Brazil). Dept. of Radiology; Martins, Dulce Maria Fonseca Soares [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of Surgery. Div. of Plastic Surgery; Gomes, Paulo de Oliveira [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of Surgery. Div. of Operatory Technique and Experimental Surgery; Martins, Jose Luiz [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. of Surgery. Div. of Pediatric Surgery

    2008-07-01

    Purpose: Evaluate by CT the use of porous vitreous carbon (PVC) and silicon (S) implants as the replacement bone in the craniofacial skeleton of rats. Methods: 40 rats divided in: Group A (n=20) PVC submitted to the implant of a fragment in skull. After the euthanasia, the animals were divided into two subgroups: A I: 10 animals, studied in the 7th postoperative day (P.O) and AII: 10 animals, studied in the 28th P.O. In group B, S, 20 rats were submitted to S implant in the skull. All other steps were identical to group A, with designation of subgroups BI and BII. CT with beams in axial cuts of 1 mm thickness to obtain 3-D information It was used Hounsfield scale for evaluate the radio density of the implant. They were used non parametric tests to analyze the results. Results: The 7th PO boss remained in the two groups, but for 28th PO, observed reduction in the volume of the implant in Group A, not observed in group B. CT studies noticed different radio densities around all of S prostheses (pseudo capsule), that do not appeared in CPV implants. The S has remained unchanged in the CT, but the CPV has had a modification in its radio density (p{<=}0,05), in all implants. Conclusion: In CT evaluation the implants of CPV have greater deformation that the S, which makes them not suitable for replacement of membranous bone in the rat skull. (author)

  2. Specialized consultant in radiological safety to the Tula general hospital, PEMEX. IV. - October of 2001; Asesoria especializada en seguridad radiologica al hospital general Tula, PEMEX. IV.- Octubre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A; Vizuet G, J; Benitez S, J A; Garcia A, J; Rodriguez A, F

    2002-01-15

    The Tula general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  3. Assessment by peer review of the effectiveness of a regulatory programme for radiation safety. Interim report for comment; Evaluacion mediante examen por pares de la efectividad de un programa regulador para la seguridad radiologica. Informe provisional para formular comentarios

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-06-01

    This document covers assessment of those aspects of a radiation protection and safety infrastructure that are implemented by the Regulatory Authority for radiation sources and practices using such sources and necessarily includes those ancillary technical services, such as dosimetry services, which directly affect the ability of the Regulatory Authority to discharge its responsibilities. The focus of the guidance in this TECDOC is on assessment of a regulatory programme intended to implement the BSS. The BSS address transportation and waste safety mainly by reference to other IAEA documents. When conducting an assessment, the Review Team members should be aware of the latest IAEA documents (or similar national documents) concerning transportation and waste safety and, if appropriate, nuclear safety, and take them into account to the extent applicable when assessing the effectiveness of the regulatory programme governing radiation protection and safety of radiation source practices in a particular State.

  4. Evaluation of the radiological protection and proposal of a PGC in physical aspects for Roentgen therapy facilities; Evaluacion de la proteccion radiologica y propuesta de un PGC en aspectos fisicos para una instalacion de Roentgenterapia

    Energy Technology Data Exchange (ETDEWEB)

    Garcia R, L M; Silvestre, I; Laguardia, R A; Almeida, A de [Depto. de Fisica e Matematica, Universidade de Sao Paulo-FFCLRP (Brazil)

    1999-12-31

    The present work was realized in a first stage in the Hnos Ameijeiras Hospital in Cuba and its objective in this phase is to present at the Regulatory Agency (OR) the documentation for obtaining the Institutional Exploitation License (LE) of a Roentgen therapy equipment, according with the IAEA Safety Series No. 115 and propose the Quality Assurance Program (PGC) in the physical aspects that it will be applied in this practice. For obtaining the LE it was made up a safety report, a safety manual and a radiological emergency plan. For making up the PGC it was established the reference state of the equipment (ER), realizing the tests which determine the value or stability of the physical parameters involved in the treatment through the adaptation of International protocols, mainly the `Quality Assurance in Radiotherapy` derived of Arcal XXX. In a second stage were applied some of the acquired experiences in the Das Clinicas Hospital at Ribeirao Preto in Brazil. As more important results it was had that was renewed the Roentgen therapy Service of the Hnos. Ameijeiras Hospital and was made the PGC which will govern this practice. Moreover it was obtained the dose percentage curves in depth (PDP) for X-rays low energies. It was proposed procedures for the parameters control like the PDP, the absolute dose and the hemi reducing layer (CHR). With this work it was started doing the fulfilment of one of the main objectives of the Arcal XXX Project related with the Quality Assurance in Radiotherapy extending its application toward area of Latin American countries. (Author)

  5. Specialized consultant in radiological safety to the north central hospital of high speciality, PEMEX. III. - September of 2001; Asesoria especializada en seguridad radiologica al hospital central norte de alta especialidad, PEMEX III.- Septiembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A; Vizuet G, J; Benitez S, J A; Rodriguez A, F; Garcia A, J

    2001-12-15

    The north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  6. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. V. - November of 2001; Asesoria especializada en seguridad radiologica al hospital central sur de alta especialidad, PEMEX. V.- Noviembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A; Vizuet G, J; Benitez S, J A; Garcia A, J; Rodriguez A, F

    2002-01-15

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Autho000.

  7. Mechanical and Radiological Characterization of Different parts of an Irradiation Coolant Channel Tube from Atucha I Nuclear Plant; Caracterizacion Mecanica y Radiologica de Partes de Canales Refrigerantes Irradiados Extraidos del Reactor de la Central Nuclear Atucha I

    Energy Technology Data Exchange (ETDEWEB)

    Piquin, Ruben [Instituto Balseiro, Universidad Nacional de Cuyo, Centro Atomico Bariloche, Universidad Nacional de Mar del Plata (Argentina)

    2001-07-01

    The widespread replacement of reactor internals has generated a substantial volume of active material. It is essential to work with these components at least in a partial way before the next planned stop, which will take place during the second semester of the year 2002. Due to the fact that the reactor internals pool and the storage pool for irradiated nuclear fuel have limited capacities, it has been proposed to compact an experimental shift of 50 irradiated coolant channels, that are currently placed in storage pools. Basically the processed waste will be put in baskets at the bottom pools.The alternative choice proposes to divide an irradiation coolant channel tube into different parts: stainless steel section, zircaloy-4 section and stainless steel section with hardened zones with cobalt alloys named Estelite-6. The person in charge has already planned the constructive and operative solutions but the mechanical characterization of the different parts of the channel tube is necessary in order to dimension the compaction tool needed for the semi-industrial installation.In the present special report, two well-differentiated actions will be described. The necessary compacted strength of the irradiation coolant channel tube will be estimated for the stainless steel section and the zircaloy-4 section starting from experiment with unirradiated material and considering effects of radiation damage and hydrides on the ductility.These results will be used to design the necessary compacted tools for the semi-industrial installation. The necessary equipment for the radiological characterization of the different material sections already specified will be described and the most important emitting particles of radiation that could be detected will be mentioned. Also the decontamination process to use including the radiological characterization of every stage of the process will be described in order to establish the decontamination factor. Finally the most important radioactive elements than will remain after the decontamination in the different sections of the channel tube will be estimated with the purpose of establishing the type of end waste.

  8. Radiological investigation in the outside area of expedition's room during radiopharmaceuticals' expedition; Avaliacao radiologica na area externa da sala de expedicao durante a expedicao de radiofarmacos

    Energy Technology Data Exchange (ETDEWEB)

    Reina, Luiz C.; Monteiro, Ilka H.T.S.; Silva, Joao Carlos P. da; Teixeira, Danilo L.; Pedro, C.R.; Santos, J. Regis dos, E-mail: reina@ien.gov.br, E-mail: jcarlos@ien.gov.br [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de janeiro, RJ (Brazil)

    2013-07-01

    Radiopharmaceuticals produced in IEN - Instituto de Engenharia Nuclear of the Brazilian Nuclear Energy Commission, are issued by the radiation protection team, which is responsible for preparing and issuing the packaged documentation required for movement in modal transportation. The documents are: Invoice , Shipper's Declaration of Radioactive Material , Shipper's Declaration of Dangerous Goods - (form IATA ) , Emergency Sheet, sketch of packed. All this documentation is inserted in an envelope of emergency. The Department of Radiological Protection is responsible for issuing such documents except the invoice that is issued by the Commercial Sector (Setcom). A employee of this sector is responsible for delivering it to the shipment sector. The preparation of packaged and documentation is performed in a room located in the building of Radiopharmaceutical Division. The vehicles which are used in the transport are parked outside this building, where are monitored after commissioning of packaged. The present study aims to evaluate potential and occupational radiation risks of people in transit or remain in the area where radioactive material circulates due to the shipment of radiopharmaceuticals for the classification of the area during the operation of dispatch.

  9. Automatic inspection of oil and gas pipe welded joints by radiographic images analyses; Analise automatica de imagens radiologicas aplicada a inspecao de juntas soldadas em tubulacoes de oleo e gas

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, Guilherme A.; Felisberto, Marcelo K.; Pilkel, Lucas V.; Centeno, Tania M.; Arruda, Lucia V.R. [Centro Federal de Educacao Tecnologica do Parana (CEFET-PR), Curitiba, PR (Brazil). Curso de Pos-graduacao em Engenharia Eletrica e Informatica (CPGEI). Lab. de Automacao e Sistemas de Controle Avancado

    2004-07-01

    The reliability and integrity evaluation of structures and equipment on the petroleum and gas industry is an absolute necessary care due to economic reasons and safety. As a consequence, new supporting technologies for well known nondestructive test and evaluation methods have been developed in order to automate these inspection processes, improving their robustness, accuracy and quickness. On this way, the present work introduces solutions to overcome some obstacles to the automation of the radiographic image analysis task for the pipeline weld joint inspection, on radiographic non-destructive tests and evaluations. The main contributions are related to the improvements to techniques for the automatic weld bean segmentation and the development of an effective algorithm for the weld bean defect detection and extraction of relevant defect descriptors. (author)

  10. Specialized consultant in radiological safety to the Tula general hospital, PEMEX. VI. - December of 2001; Asesoria especializada en seguridad radiologica al hospital general Tula, PEMEX. VI.- Diciembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A; Vizuet G, J; Benitez S, J A; Garcia A, J; Rodriguez A, F

    2002-01-15

    The Tula general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  11. Specialized consultant in radiological safety to the Reforma peripheral clinic, PEMEX. - IV. - November and December of 2002; Asesoria especializada en seguridad radiologica a la clinica periferica Reforma, PEMEX.- IV.- Noviembre y Diciembre de 2002

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A; Hernandez C, J E; Rodriguez A, F; Garcia A, J

    2003-02-15

    The Reforma peripheral clinic, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray quipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the clinic can conserve its respective sanitary license.(Author)

  12. Quality assurance applied to Radiological Protection Program of CPHR - Centro de Proteccion Y Higiene de las Radiaciones; Aseguramiento de la calidad aplicado al programa de proteccion radiologica del CPHR - Centro de Proteccion y Higiene de las Radiaciones

    Energy Technology Data Exchange (ETDEWEB)

    Marrero Garcia, M.; Jova Sed, L.; Domenech Nieves, H.; Hernandez Sainz, A. [Centro de Proteccion y Higiene de las Radiaciones, La Habana (Cuba)

    2001-07-01

    The quality assurance in establishment that use ionizing radiation sources, is according to international recommendations of radiation protection programs. This work intends to present the experience of the Centro de Proteccion y Higiene de las Radiaciones (CPHR), in the implementation of requirements of quality in their Radiological Protection Program.

  13. Twenty years of activity of the radiation protection service of the El Cabril storage center; Veinte anos de actividad del servicio de proteccion radiologica del centro de almacenamiento de El Cabril

    Energy Technology Data Exchange (ETDEWEB)

    Fuentes, L.; Pinilla, J. L.; Ortiz, M. T.

    2013-07-01

    All controls of internal contamination by body radioactivity counter have been lower than the level of logging for internal doses (1 mSv/year). External personal pollution incidents have not occurred. With respect to the dose to the public these remain very low and lower than the limits specified in the authorization. Also the results of the PVRA indicate no influence of the installation in your environment. During the twenty years of operation of the El Cabril Storage Center has not occurred any incidents radiological and doses both to workers and the public in general, are kept very low and lower than the established dose limits. (Author)

  14. New ICRU quantities for the environmental and individual monitoring. Standardization of individual dosemeters by using external beams of photon radiation; Nuevas magnitudes ICRU para la vigilancia radiologica ambiental e individual. Calibracion de dosimetros personales usando haces externos de fotones

    Energy Technology Data Exchange (ETDEWEB)

    Brosed, A; Delgado, A; Granados, C E

    1987-07-01

    The quantities introduced by ICRU for the radiological monitoring are commented, specially those implied in individual protection against external photons. A procedure is proposed in order to standardize the individual dosemeters by using the kerma in air references of CIEMAT-JEN. The reference radiation beams are described in connection with ISO standards. Provisional values are selected for the appropriate conversion and correction factors. (Author) 23 refs.

  15. Use of information technologies to contribute for optimizing the safety radiation management in Cuba; Uso de las tecnologias de la informacion, para contribuir a la optimizacion de la gestion de la seguridad radiologica en Cuba

    Energy Technology Data Exchange (ETDEWEB)

    Valdes Ramos, M.; Prendes Alonso, M.; Hernandez Saiz, A.; Manzano de Armas, J., E-mail: zury@cphr.edu.cu [Agencia de Energia Nuclear y Tecnologias de Avanzada (CPHR/AENTA), La Habana (Cuba). Centro de Proteccion e Higiene de las Radiaciones

    2013-11-01

    This paper presents the results achieved in Cuba, with the development of a group of information management tools to implement radiation safety systemic and proactive approaches to safety and ICT supported. These tools were designed for different organisms with responsibility for the security at the country level, to the regulatory authority, for user entities, for individual monitoring services and other radiation protection services. It describes the philosophy of information management model used, the characteristics of the developed tools and their integration, the work performed for the homogenization of information available and the ability to capture and deliver data at different levels in decision making. The tools developed are based on the use of variables and indicators of importance to the safety and the systemic approach adopted allows to facilitate the optimization process for supervision of safety practices as well as contribute to the management of knowledge in radiation safety, through a synergistic combination of process data, information, information management systems, and the creative and innovative radiation safety experts.

  16. Specialized consultant in radiological safety to the Tula general hospital, PEMEX. II.- August of 2001; Asesoria especializada en seguridad radiologica al hospital general Tula, PEMEX. II.- Agosto de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Rodriguez A, F.; Garcia A, J

    2001-10-15

    The Tula general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  17. Specialized consultant in radiological safety to the north central hospital of high speciality, PEMEX. I. - July of 2001; Asesoria especializada en seguridad radiologica al hospital central norte de alta especialidad, PEMEX I.- Julio de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A

    2001-09-15

    The north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  18. Specialized consultant in radiological safety to the Tula general hospital, PEMEX. I.- July of 2001; Asesoria especializada en seguridad radiologica al hospital general Tula, PEMEX. I.- Julio de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J

    2001-09-15

    The Tula general hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic. The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  19. Specialized consultant in radiological safety to the Villahermosa regional hospital, PEMEX. III. - September and October of 2002; Asesoria especializada en seguridad radiologica al hospital regional Villahermosa, PEMEX, III.- Septiembre y Octubre de 2002

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Rodriguez A, F.; Garcia A, J

    2003-02-15

    The Villahermosa regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiolpogic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  20. Specialized consultant in radiological safety to the Villahermosa regional hospital, PEMEX. IV. - November and December of 2002; Asesoria especializada en seguridad radiologica al Villahermosa hospital regional, PEMEX, IV.- Noviembre y Diciembre de 2002

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Hernandez C, J.E.; Rodriguez A, F.; Garcia A, J

    2003-02-15

    The Villahermosa regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  1. Specialized consulting in radiological safety to the south central hospital of high specialty, PEMEX. VI. December of 2001; Asesoria especializada en seguridad radiologica al hospital central sur de alta especialidad. PEMEX. VI. Diciembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J.A.; Garcia A, J.; Rodriguez A, F. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2002-01-15

    It is a report of a specialized consulting in radiological safety that to be carried the ININ to PEMEX for the South Central Hospital of High Specialty, to maintain the sanitary license for the use of X-ray equipment of medical diagnostic, and guarantee these services with a program of quality assurance. To give fulfilment to that requests it is programmed a technical assistance monthly, with reports of results during the development of the service. In this document it is carried a report of the advances and results in the month of december of the 2001, where the following documents are analyzed: Manual of radiological safety, program of quality assurance, operation procedures, procedure of maintenance team, procedure of medical radiological control of the specialized personnel; also are annotate the obtained results and their observations. (Author)

  2. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. I. - July of 2001; Asesoria especializada en seguridad radiologica al hospital central sur de alta especialidad, PEMEX I.- Julio de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J

    2001-09-15

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  3. Specialized consultant in radiological safety to the Salamanca regional hospital, PEMEX. III. - September of 2001; Asesoria especializada en seguridad radiologica al hospital regional Salamanca, PEMEX. III.- Septiembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The Salamanca regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  4. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. II.- August of 2001; Asesoria especializada en seguridad radiologica al hospital central sur de alta especialidad, PEMEX II.- Agosto de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Rodriguez A, F.; Garcia A, J

    2001-12-15

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  5. Specialized consultant in radiological safety to the Macuspana peripheral clinic, PEMEX. - IV. - November and December of 2002; Asesoria especializada en seguridad radiologica a la clinica periferica Macuspana, PEMEX.- IV.- Noviembre y Diciembre de 2002

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Hernandez C, J. E.; Garcia A, J.; Rodriguez A, F

    2003-02-15

    The Macuspana peripheral clinic, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the clinic can conserve its respective sanitary license.(Author)

  6. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. III.- September of 2001; Asesoria especializada en seguridad radiologica al hospital central sur de alta especialidad, PEMEX III.- Septiembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Rodriguez A, F.; Garcia A, J

    2001-12-15

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  7. Evaluation of the radiological protection and proposal of a PGC in physical aspects for Roentgen therapy facilities; Evaluacion de la proteccion radiologica y propuesta de un PGC en aspectos fisicos para una instalacion de Roentgenterapia

    Energy Technology Data Exchange (ETDEWEB)

    Garcia R, L.M.; Silvestre, I.; Laguardia, R.A.; Almeida, A. de [Depto. de Fisica e Matematica, Universidade de Sao Paulo-FFCLRP (Brazil)

    1998-12-31

    The present work was realized in a first stage in the Hnos Ameijeiras Hospital in Cuba and its objective in this phase is to present at the Regulatory Agency (OR) the documentation for obtaining the Institutional Exploitation License (LE) of a Roentgen therapy equipment, according with the IAEA Safety Series No. 115 and propose the Quality Assurance Program (PGC) in the physical aspects that it will be applied in this practice. For obtaining the LE it was made up a safety report, a safety manual and a radiological emergency plan. For making up the PGC it was established the reference state of the equipment (ER), realizing the tests which determine the value or stability of the physical parameters involved in the treatment through the adaptation of International protocols, mainly the `Quality Assurance in Radiotherapy` derived of Arcal XXX. In a second stage were applied some of the acquired experiences in the Das Clinicas Hospital at Ribeirao Preto in Brazil. As more important results it was had that was renewed the Roentgen therapy Service of the Hnos. Ameijeiras Hospital and was made the PGC which will govern this practice. Moreover it was obtained the dose percentage curves in depth (PDP) for X-rays low energies. It was proposed procedures for the parameters control like the PDP, the absolute dose and the hemi reducing layer (CHR). With this work it was started doing the fulfilment of one of the main objectives of the Arcal XXX Project related with the Quality Assurance in Radiotherapy extending its application toward area of Latin American countries. (Author)

  8. Proficiency in radiation protection, nuclear medicine and biomedicine in the Faculty of Biochemistry and Pharmaceutics, Universidad de Buenos Aires, Argentina; Capacitacion en proteccion radiologica en medicina y biomedicina en la Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Bergoc, Rosa M.; Caro, Ricardo A.; Rivera, Elena S. [Universidad Buenos Aires (Argentina). Faculdade de Farmacia y Bioquimica. Lab. de Radioisotopos; Menossi, Carlos A. [Autoridad Regulatoria Nuclear, Buenos Aires (Argentina)

    2001-07-01

    The School of Pharmacy and Biochemistry (Buenos Aires University) offers four annual courses on Methodology of Radioisotopes (which focus on different aspect of the Radiological Protection according to whom they are aimed: 1) Course for students in the Biochemistry Cycle; 2) Course for post-Graduate in Medicine, Biochemistry, Biology, Chemists; 3) Course to up-date the knowledge; 4) Course for Technicians in Nuclear Medicine. From 1960, 5000 biochemistry students have approved Methodology of Radioisotopes. The syllabus includes aspect related to the students' future professional activities. Since 1962, 1513 (?) graduates have approved it. Training (222 h) include: dosimetric magnitudes, units, internal and external dosimetry; working conditions, contamination barriers, radioprotection philosophy and principles; limits; radioactive wastes; legal aspects, national and international legislation. Uses of commonest isotopes in Nuclear Medicine and Biomedicine are under deep analysis. Since 1992 the graduates who wish to up-date their knowledge can follow this course organized in modules to suit their needs. Since 1997 this course emphasizes the operational aspects such as: columns elution, injection of radioactive drugs to patients, decontamination of areas. The increasing in the application of radioisotopes makes necessary to encourage their use in harmony with the environmental. (author)

  9. Euratom requirements regarding environmental monitoring and review of Basic Safety Standards; Requisitos de Euratom con respecto a la vigilancia radiologica ambiental y revision de las Normas Basicas de Seguridad

    Energy Technology Data Exchange (ETDEWEB)

    Janssens, A.

    2010-07-01

    This paper provides and overview of the articles related to environmental monitoring that were included in Title III of the Treaty that established the European Atomic Energy Comunity in 1957. In particular Article 35 of the Treaty which requires Member States to control the levels of radioactivity in the atmosphere, water and soil is the cornerstone of comprehensive programs that take place. (Author). 18 refs.

  10. Training courses on radiation protection organized by the radioisotopes service of the University of Sevilla (Spain); Curos de formacion en proteccion radiologica organizados por el servicio de raioisotopos de la universidad de sevilla. Espana

    Energy Technology Data Exchange (ETDEWEB)

    Mateos, J. C.; Avalos, J.; Garcia-Leon, M.; Garcia-Tenorio, R.; Gomez-Puerto, A.; Gomez, M.; Herrador, M-; Lejeune, J.; Luis-simon, J.; Marquez, A.; Maranon, J.; Respaldiza, M. A.; Sanchez-Angulo, C.; Sanchez-Doblado, F.; Sarmiento, J. M.

    2003-07-01

    The University of Sevilla (Spain) through its Radioisotope Service has been organizing bi annually since 1995 Training courses for Supervisors and Operators of Radioactive Installations for university investigators that use radioactive sources or radiation equipment. The courses are imparted by professors from the university radioactive installations, hospital physicist specialists from medical physics services and medical doctors from prevention labour health service. The students are postgraduate students or professors that need operate, with ionising radiation in their research laboratories. Up to date, it has been organized 4 courses series with an average of 30 students per course. The courses are homologated by the Nuclear Security Council and let the student obtain the license for Supervisors or Operators of Radioactive Installations in each of the following applications fields. a) Laboratories with Non-Encapsulated Sources. This application includes research activities in Biology, Chemistry, Physics, Medicine and Pharmacy. b) Radiation Generator Equipment. This last one includes equipment such as X-Ray apparatus for diffraction studies in physics chemistry and art sciences, or Particle Accelerator for atomic physics research in the National Accelerator Centre. The practical sessions of the courses are imparted in the radioactive installations of the Seville university. In this study it is described the details of the organization of the courses. (Author) 4 refs.

  11. Implementation of the learning problems of physics-based medical and radiation protection in a medical school; Implementacion del aprendizaje basado en problemas de la fisica medica y la proteccion radiologica en una facultad de medicina

    Energy Technology Data Exchange (ETDEWEB)

    Munoz Montplet, C.; Casas Curto, J. D.; Pedraza Gutierrez, S.; Vilanova Busquets, J. C.; Balliu Collgros, E.; Barcelo Obregon, J.; Fuentes Raspall, R.; Guirao Marin, S.; Maroto Genover, A.; Pont Valles, J.; Agramunt Chaler, S.; Jurado Bruggeman, D.

    2013-07-01

    The learning objectives related to medical physics and radiation protection work mostly in the module of Radiology and physical medicine of the second year of the curriculum, complemented by a visit to medical physics and radiation protection and radiation oncology at the Hospital services University of reference during the third course. In this paper we present our experience in the design and implementation during the period 2009-2012 of the module focusing in these disciplines. (Author)

  12. Validation of the implementation of the basic standards of national radiological safety in radioactive facilities of the east Cuba; Valoracion de la implementacion de las normas basicas de seguridad radiologica nacionales en instalaciones radiactivas del oriente de Cuba

    Energy Technology Data Exchange (ETDEWEB)

    Perez G, F.; Fornet R, O.M. [Ministerio de Ciencia, Tecnologia y Medio Ambiente. Delegacion Territorial Holguin, Peralta No.16. Rpto Peralta, C.P. 80400 Holguin (Cuba)]. e-mail: ornuc@citmahlg.holguin.inf.cu

    2006-07-01

    Since with it publication in the Official Gazette of the Republic of Cuba began to govern the Basic Standards of Radiological Safety (NBSR) its have lapsed five years. In it practical implementation, by part of the Nuclear Regulatory Authority (ARN), several resources have been applied among those that its find the identification of the nonfulfillment of the requirements of the NBSR in the inspections, the establishment of validity conditions of the authorizations that are granted, emission and the publication of specific Safety Guides by practice. In the work it is carried out a detailed and integral analysis of the execution of those settled down requirements by the Standards in a representative group of radioactive medical and industrial facilities in the east of the country, by means of the valuation of the deficiencies and requirements pointed out in the inspections carried out during those years 2004 and 2005. As a result of the work the particularities of the level of proven implementation of this body are exposed from the point of view of the ARN that one keeps in mind for it later performance and can being of interest for others regulatory authorities. (Author)

  13. Investigation of radiological emergencies by the IPEN-CNEN/SP during the years 2001 to 2010; Averiguacoes de emergencias radiologicas pelo IPEN-CNEN/SP nos anos de 2001 a 2010

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Fabio Fumio; Mitake, Malvina Boni, E-mail: ffsuzuki@ipen.b, E-mail: mbmitake@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-10-26

    The Brazilian National Nuclear Energy Commission maintain, in each of its unities, a technical team for investigation and initial response to radiological and nuclear emergency situations which can occur outside of its installations. At the Sao Paulo state, Brazil, that task is accomplished by the Radioprotection Management (GRP) of the Instituto de Pesquisas Energeticas e Nucleares, IPEN-CNEN/SP, Brazil. This paper shows the results obtained by the GRP, analysing which entities action the system, the nature of the event, the involved type of radiation source and the geographical distribution of occurrences in the state. During the period between 2001 and 2010, the GRP attended to 98 notifications, and the entity which the most action the system was the Fire Department. The radionuclide of most incidence was the Am-241, mainly because of radioactive lightning-arrester, followed of radionuclides used in nuclear medicine such as Mo-99/Tc-99m and I-131

  14. Advances and results of the educative project: Implementation of the career of 'Technician in Radiological protection'; Avances y resultados del proyecto educativo: Implementacion de la carrera de 'Tecnico en Proteccion radiologica'

    Energy Technology Data Exchange (ETDEWEB)

    Vizuet G, J.; Suarez, G.; Sanchez C, M. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2003-07-01

    In this work the obtained advances and achievements during the impartment of the technician career in radiological protection are presented. This is carried out in the 'Justo Sierra' Technological High School Center of San Mateo Atenco, Estado de Mexico, and has for objective the formation of professional-technicians. (Author)

  15. Operational radiation protection in the PET/MRI Installation of Research Laboratory of Human Cardiovascular imaging of the CNIC; Proteccion radiologica operacional en la instalacion PET/RM del laboratorio de investigacion de imagen cardiovascular humana del CNIC

    Energy Technology Data Exchange (ETDEWEB)

    Escudero Toro, R.; Delgado Alberquilla, R.; Moreno Lopez, J.; Lopez, G.

    2013-07-01

    The objective of this study is to describe the implications in the design of facilities, shielding calculation and design of radioactive sources of calibration encapsulated compatible with RM and, on the other hand, specify, after the start-up of the laboratory, the operational monitoring of the installation, the use of monitors pollution and radiation within the room and its compatibility with the RM, dosimetry control area and exposed personnel and occupational radiation protection and the patient. (Author)

  16. ENETRAP II: European network of education and training in radiation protection, data base training; ENETRAP II: Red Europea de Educacion y Formacion en Proteccion Radiologica, base de datos de formacion

    Energy Technology Data Exchange (ETDEWEB)

    Marco Arboli, M.; Llorente, C.; Coeck, M.

    2012-07-01

    Development and implementation of a European standard for high quality initial training and professional development continued in the {sup R}adiation Protection Expert-RPE and Radiation Protection Officer-RPO, also of a methodology for the mutual recognition of these professionals by making use of the available instruments of the European Union (GE).

  17. The project of the Spanish Nuclear Industry Forum to develop an interactive educational material on Radiological Protection; El Proyecto de Foro de la Industria Nuclear espanola para elaborar un material didactico interactivo sobre Proteccion Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Real, A.; Cruz, T. de la; Girona, L.; Montesinos, L.; Sanchez, P.

    2012-07-01

    The Training Department of the Spanish Nuclear Industry Forum has undertaken a new project to develop an interactive educational material on Radiological Protection. The objective was to develop an attractive, comprehensive and interactive material, to facilitate students and teachers of Elementary, Middle and High schools, to become familiar with ionising radiations. The novelly of the project, is that based on the European framework of key competencies for file long learning, which are defined as a set of knowledge, skills and altitudes that all individuals need for personal fulfilment and employment. The material presented in this paper, is based in an integrated structure of tasks, activities and exercises, which will facilitate the acquisition of as may key competencies as possible. Besides, the material also includes reference texts, links to pertinent web sites and videos. Students, through the development of a specific task (and related activities and exercises), will learn the differences between ionizing and non ionising radiation, the origin, characteristics and types of types of ionising radiation, how to detect and measure them, the potential detrimental health effects, the principles of radiation protection and the beneficial applications can have for man. The material is freely available in www.rinconeducativo.org. (Author) 4 refs.

  18. Analysis of the implementation of the radiological protection to the schedules of Nursery and Medicine of the UAEM; Analisis de la implementacion de la proteccion radiologica a los programas de Enfermeria y Medicina de la UAEM

    Energy Technology Data Exchange (ETDEWEB)

    Vizuet G, J.; Suarez, G. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)]. e-mail: jvg@nuclear.inin.mx

    2005-07-01

    In this work a presentation of the content of a plan of studies is made directed to the preparation and familiarization of human resources in medicine with applications of ionizing radiations. The plan of studies has been developed with the objective of fulfilling the established training program for the National Commission of Nuclear Safety and Safeguards, as well as to that required by the Secretary of Health with respect to the execution of the Mexican Official Standards corresponding, international recommendations, and to that suggested by the training guides emitted by the General Direction of Training and Production of the Secretary of the Work and Social Forecast. (Author)

  19. Classification system of radioactive sources to attend radiological emergencies, the last three cases of theft in Mexico; Sistema de clasificacion fuentes radiactivas para atender emergencias radiologicas, los tres ultimos casos de robo en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz C, M. A.; Garcia M, T., E-mail: marcoa.ruiz@inin.gob.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2014-10-15

    Following last three cases of theft of radioactive material in Mexico is convenient to describe how to classify radioactive sources and make decisions to confront the emergency. For this there are IAEA publications, which determine the Dangerous values or value D, for different radionuclides and activity values usually used in practice, and employees in industry, medicine and research. The literature also describes the different scenarios to determine the activity of different radioisotopes that can cause deterministic effects to workers or the population and thus classify the degree of relative risk that these sources may be involved in an accident. Defined the classification of sources, we can make decisions to respond to emergencies in their proper perspective also alert the public to the description of the risks associated with the sources in question, without this leading to a situation of greater crisis. (Author)

  20. Diagnosis of current state of the radiological safety system in the radiotherapy services of CCSS; Diagnostico del estado actual del sistema de seguridad radiologica en los servicios de radioterapia de la CCSS

    Energy Technology Data Exchange (ETDEWEB)

    Calvo, Carolina Masis, E-mail: ccalvoma@ccss.sa.cr [Caja Costarricense del Seguro Social (ACCPR-SAPR/CCSS), San Jose (Costa Rica). Area de Control de Calidad y Proteccion Radiologica

    2013-07-01

    This article presents an analysis of evaluation reports issued by the Area of Control of Quality and Radiation Protection (ACCPR) of the Caja Costarricense de Seguro Social (CCSS, unit responsible for monitoring and auditing the System of Institutional Radiation Safety of the Costa Rica. In addition, were conducted a series of interviews to the radiotherapy services and authorities of the services to determine the internal perception on the performance and suitability of these programs.The results of this research have allowed identifying an improvement in the level of compliments of the current legislation on protection and radiation safety in these services through the previous five years; and how internally there is a positive perception of the officials, confirming the suitability of Radiological Protection and Quality Control Programs local. As a result of the analysis of the information gathered, we propose a series of actions and recommendations, that will allow improvements in the System of Institutional Radiation Safety, as the implementation of evaluations type QUATRO and the improvement of the local training programs.

  1. Intercalibration of radiological measurements for surveillance purposes of the internal dosimetry laboratory coordinated by the IAEA; Intercalibracion de mediciones radiologicas para fines de vigilancia del laboratorio de dosimetria interna coordinada por el OIEA

    Energy Technology Data Exchange (ETDEWEB)

    Alfaro L, M.M. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2002-07-15

    The ININ of Mexico participated in this intercomparison organized by the IAEA in 2000. The objective of this activity is that the dosimetry laboratories that participate can validate the programs of internal dosimetry, with the purpose of improving its capacity in the evaluation of the internal dose and have access to a mechanism to evaluate its dosimetry system under real conditions. The specific objectives of this intercomparison were: 1. To evaluate the participant's capacity to manage the measurements of individual monitoring in terms of the activity in the phantom. 2. To provide the access to the unique calibration resources that otherwise would not be available. 3. To compare the operation of several detection systems, the geometry, phantoms, calibration methods and methods for the evaluation of activity of the radionuclide used by each institution. 4. To provide the independent verification of the direct measurement methods of the dosimetry service. (Author)

  2. Actions to achieve competence in radiation protection practices in the Republic of Cuba; Acciones para lograr la competencia en proteccion radiologica en las practicas en la Republica de Cuba

    Energy Technology Data Exchange (ETDEWEB)

    Prendes Alonso, M.; Tomas Zerquera, J.; Valdes Ramos, M., E-mail: prendes@cphr.edu.cu [Centro de Proteccion e Higiene de las Radiaciones (CPHR), Agencia de Energia Nuclear y Tecnologias de Avanzada, La Habana (Cuba); Guillen Campos, A. [Centro Nacional de Seguridad Nuclear (CNSN), La Habana (Cuba); Santana Nunez, J.F. [Agencia de Energia Nuclear y Tecnologias de Avanzada (AENTA), La Habana (Cuba)

    2013-07-01

    The article addresses the goals of a national project created with the purpose of systematize all actions of the country in this area, including the definition of the responsibilities of the participating institutions and the actions to ensure consistency with the guidelines of the IAEA in this field.The experiences of projects currently being developed in other countries, as it is the case of the European project ENETRAP, were taken into account in the conception of the project and its contents. The work also describes other actions that this field is developing in the country.

  3. Radiological protection and calibration of an activity meter with cesium and barium sources in a nuclear medicine center; Proteccion radiologica y calibracion de un activimetro con fuentes de cesio y bario en un centro de medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Morales L, M.E. [IPEN INEN Centro de Medicina Nuclear, Av. Aviacion 3799, Lima 34 (Peru)

    2005-07-01

    Presently work is shown the results when gauging a team Deluxe Isotope (Caliper 11) with some sources of Cesium 137 and Barium 133, in a Center of Medicine Nuclear that operates from the anus 1983 in a modern building inside the one Institute of Illnesses Neoplasia (Inn). This Center was equipped initially with teams donated by the International Organism of Atomic Energy (Oa) with those that it develops assistance, educational works and of investigation, giving services to patient of the Inn and other public and private medical centers. (Author)

  4. Specialized consultant in radiological safety to the north central hospital of high speciality, PEMEX. I. - May-June of 2003; Asesoria especializada en seguridad radiologica al hospital central norte de alta especialidad, PEMEX I.- Mayo-Junio de 2003

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Camacho V, B.; Rodriguez A, F

    2003-09-15

    The north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  5. The drone as an additional risk factor due to conditions not provided for in radiological safety at major events; O drone como fator adicional de risco decorrente de condicoes nao previstas na seguranca radiologica em grandes eventos

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Gilberto de Jesus

    2015-07-01

    Major international events are potential targets of terrorist actions, seeking instant publicity that events of this magnitude provide, with the intention of causing terror and disseminate its power to a large number of people worldwide. In this context, the critical analysis of additional risk factor linked to procedures and protocols adopted on radiation safety is important. The possibility of unforeseen situations of risk, especially those resulting from the current global technological development, is a fact. Radioactive material can be used in this type of terrorism in a wide range of devices and illicit trafficking of this material is a reality that worries the International Atomic Energy Agency. In the current technological development scenario of the world, the potential occurrence of terrorist acts using drones combined with radioactive material dispersal devices, is real. The recent history of drones incidents presents cases where, despite not having been necessarily terrorist motivation, their circumstances and characteristics favor the occurrence of malicious acts. This paper proposes to alert the need of updating the current security protocols, considering the potential association of this technology with radioactive dispersal devices. (author)

  6. Specialized consultant in radiological safety to the Salamanca regional hospital, PEMEX. IV. - October of 2001; Asesoria especializada en seguridad radiologica al hospital regional Salamanca, PEMEX. IV.- Octubre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The Salamanca regional hospital, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  7. Automated system for the management of the radiological safety in a radiopharmaceutical and labelled compounds production center; Sistema automatizado para la gestion de la seguridad radiologica un centro de produccion de radiofarmacos y compuestos marcados

    Energy Technology Data Exchange (ETDEWEB)

    Amador B, Z.H. [Centro de Isotopos, Ave. Monumental y Carretera La Rada, Km. 3, Guanabacoa, Apartado 3415, Ciudad de La Habana (Cuba); Alvarez Builla de Sologuren, E. [Centro de Gestion de Informacion y Desarrollo de la Energia, Cale 20 No. 4111 e/47y 18A, Playa, Ciudad de La Habana (Cuba)]. e-mail: zabalbona@centis.edu.cu

    2006-07-01

    The establishment in the Center of Isotopes of Cuba of a managerial quality system in matter of radiological safety Y the accumulated operational experience, its constitute the foundations for the development of a system of management of the radiological safety organically structured, with the application of evaluative techniques of it management Y it integration in an automated system. The Visual Basic 5 platform for the programming of the 'SASR' system is used. The functions of each one of the 11 modules that integrate it are described. With this it can be carried out the registration of the data of the training Y the personnel's authorization, the checkup of the radioactive inventory of the installation, the annual upgrade of the registrations of the individual doses of those workers, the analysis of the state of the available equipment for magnitude to control, the radiological situation of the work positions, the public exposure by the gassy discharges, the experiences of the radiological events, the annual consolidation of the costs of the safety Y the evaluation of indicators Y of tendencies. A computer tool that facilitates the effective management of the radiological safety in a radioactive installation is obtained. (Author)

  8. Indicators of the management for the continuous improvement of the radiological safety in a radioactive facility; Indicadores de gestion para la mejora continua de la seguridad radiologica en una instalacion radiactiva

    Energy Technology Data Exchange (ETDEWEB)

    Amador B, Z. H. [Centro de Isotopos, Ave. Monumental y Carretera La Rada, Km 3, Guanabacoa, Apartado 3415, Ciudad de La Habana (Cuba)]. e-mail: zabalbona@centis.edu.cu

    2006-07-01

    The use of safety indicators is common in the nuclear industry. In this work the implementation of indicators for the efficiency analysis of the radiological safety management system of a radioactive installation is presented. Through the same ones the occupational exposure, the training Y authorization of the personnel, the control of practices Y radioactive inventory, the results of the radiological surveillance, the occurrence of radiological events, the aptitude of the monitoring equipment, the management of the radioactive waste, the public exposure, the audits Y the costs of safety are evaluated. Its study is included in the periodic training of the workers. Without this interrelation it is not possible to maintain the optimization of the safety neither to achieve a continuous improvement. (Author)

  9. Program for the radiological protection of the embryos-fetuses due to the medical exposure of him mother; Programa para la proteccion radiologica del embrio-feto debido a la exposicion medica de su progenitora

    Energy Technology Data Exchange (ETDEWEB)

    Lopez B, G.M.; Martinez G, A.; Cardenas H, J.; Gonzalez R, N.; Valdes R, M.; Zaldivar H, W. [CPHR, Calle 20 No. 4113 e/41 y 47, Playa C.P. 11300, La Habana (Cuba)]. e-mail: gladys@cphr.edu.cu

    2006-07-01

    In the last years the organizations in charge of the regulation in matter of radiological protection, its have adopted measures to minimize the risks derived of the medical exposures, paying special attention to those that involve women in age of procreation, gestating and in period of lactation, because the embryo - fetus and the newborn babies ones are very vulnerable to the risks of the ionizing radiations, which can end up producing them multiple effects of variable severity. In Cuba, a Maternal-children program that includes the genetic advice to the pregnant woman from the medical point of view exists but didn't so the evaluation of the radiological risk; which is only carried out by the Medical Surveillance Service of the Protection and Hygiene of the Radiations Center (CPHR), without that mediates an official link among both parts and whose existence is only known by a reduced group of professionals of the health and of specialists in Radiological Protection. On the other hand is not established a strategy at national level for the differentiated information and systematic in these topics that it contributes to the control of the exposures of the embryo fetus and the breast-fed baby. Keeping in mind the above-mentioned the specialists of the CPHR have elaborated a proposal of national program for the radiological protection of the embryo- fetus due to the medical exposure of its progenitor. In the same one it is settles down the interrelation between work groups and multidisciplinary institutions to achieve the detection, communication and consultant ship of the cases of exposure to the fetus or breast-fed baby that happen in the country and at the same time include the training so much of the professionals of the health like of the public in general. Presently work the program and the elements that conform it among those that are, the on-line system developed for the automation of the medical dosimetric evaluation, the technician-methodological documents on this topic as well as the informative and instructive tools directed to the professionals and the public in general are described. (Author)

  10. Use of radiological evaluation system from the Instituto de Radioprotecao e Dosimetria in the analysis of recent radiation accidents; Utilizacao do sistema de avaliacao radiologica do Instituto de Radioprotecao e Dosimetria na analise de acidentes radiologicos recentes

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Rodolfo Julio da

    2013-07-01

    The response to an emergency situation involving ionizing radiation requires the joint participation of professionals from various kind of knowledge, belonging to public and private organizations (in the local, state and federal levels). The theme radiation tends to be an additional challenging factor - considering that it's, usually, remembered for its macabre and ominous aspect, in spite of the benefits provided by it - which makes the implementation of actions to protect the public, emergency professionals, the environment and property, very difficult. To this, we can add the complicating factor that, in most cases, the technician (holder of basic or advanced on the subject) is far !Tom the place where this action unfolds. The accident/incident takes the form of a radioactive source (sometimes orphaned, one that gone astray or even stolen) that is found by a person unaware of the risks to which they are being exposed or, let not forget about it, the non-observance of safety standards in industries and workplaces, by their own operators. Thus, before integrating emergency response plans with conventional plans specific to the prompt response to radiological emergencies, it is necessary that some measures had been anticipated and that some actions had, already, been planned - with the intention of mitigate health, psychological and economical damage, in ali of kind. To do this, since in the course of the second decade of the second millennium, and since you own a portable personal computer (Note or Netbook), or even with a mobile device (cellular) with a bit more resources, both of them previously updated, a responder (or even a qualified technician that is next to that fact) may already guide, at least, about a safety distances !Tom the source. Since he had knowledge about some characteristics of the source (its individual data), he can plan ahead about the possible serious situation that unfolds itself and emergency responders will find, when it get to the site. With the situation assessments done, the formal emergency team triggered will can prepare itself (with personnel and technical-materials facilities) to resolve the incident in the shortest time and with the least possible risks. (author)

  11. A practical methodology of radiological protection for the reduction of hot particles in BWR type reactors; Una metodologia practica de proteccion radiologica para la reduccion de particulas calientes en reactores BWR

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez G, G [Comision Federal de Electricidad, Gerencia del Proyecto Nucleoelectrico Laguna Verde, Disciplina de Fisica Aplicada (Mexico)

    1991-07-01

    The purpose of this work, in general form, is to describe a practical method for reduction of hot particles generated as consequence of the operational activities of BWR nuclear reactors. This methodology provides a description of the localizations and/or probable activities of finding particles highly radioactive denominated hot particles. For this purpose it was developed a strategy based on the decontamination lineaments, as well as the manipulation, gathering, registration, contention, documentation, control and final disposition of the hot particles. In addition, some recommendations are reiterated and alternative, in order to gathering the hot particles in a dynamic way given to the activities of the personal occupationally exposed in highly radioactive areas. The structure of the methodology of hot particles is supported in the radiological controls based on the Code of Federal Regulation 10 CFR 20 as well as the applicable regulatory documents. It provides an idea based on administrative controls of radiological protection, in order to suggesting the responsibilities and necessary directing for the control of the hot particles required in nuclear plants of the BWR type. (author)

  12. Actions of the Cuban Nuclear Regulatory Authority in the adequate implementation of the legislation in matter of radiological protection; Acciones de la Autoridad Reguladora Nuclear cubana en la adecuada implementacion de la Legislacion en materia de proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Fornet R, O.M. [Delegacion Territorial CITMA. Peralta No.16, Rpto Peralta, Holguin, CP 80400 (Cuba); Guillen C, A.; Betancourt H, L.A. [Centro Nacional de Seguridad Nuclear, Calle 28 No.504, Miramar Playa, La Habana (Cuba)]. e-mail: ofelia@citmahlg.holguin.inf.cu

    2006-07-01

    The effectiveness of the regulatory activity in matter of safety and radiological protection it depends in great measure of the practical implementation level of the legislation in this matter. In our country this objective has been achieved through the one continuous improvement of the Hierarchical System of Nuclear Regulation, the reconciliation with specialists and national experts in each matter during the elaboration of the legal documents; the popularization and gratuitous distribution of it approved; the precision in the validation conditions of the authorizations of those main precepts applicable to the practices; the legal foundation of the deficiencies evidenced in the regulatory inspections; the development of a Safety Culture; the realization of Annual Regulatory Conferences and mainly in the training of the personnel related with the safety. Also, the constant analysis on the part of the specialists of the Regulatory Authority of the grade of implementation of this legislation, it discussion in national and international events and the actions recommended in these works. As a result of this focus, it is considered that the Regulatory Authority has impacted appropriately in the implementation of this legislation. (Author)

  13. Methodology for measuring surfaces using in situ gamma spectrometry in nuclear and radiological emergencies; Metodologia de medida de superficies mediante espectrometria gamma in sit en emergencias radiologicas y nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Yague, L.; Navarro, N.; Perez, C.; Perez-Cejuela, P.; Vico, A.; Maquez, J. L.; Alvarez, A.

    2013-07-01

    CIEMAT has an environmental mobile unit for measurements of ambient dose rate and activity concentration in air. In addition, recently it included the ability to surface concentration measurement. This measure is particularly useful for making decisions about emergency decontaminate surfaces according to the criteria of the DBRR. (Author)

  14. Education and training in radiological protection in the Argentine region- IAEA, toward a long term commitment; Educacion y entrenamiento en proteccion radiologica en la region Argentina- OIEA, hacia un compromiso de largo plazo

    Energy Technology Data Exchange (ETDEWEB)

    Terrado, C.; Arbor G, A.; Bozzo, R.; Larcher, A.; Menossi, C.; Sajaroff, P. [Autoridad Regulatoria Nuclear, Libertador 8250, Buenos Aires (Argentina)]. e-mail: cterrado@sede.arn.gov.ar

    2006-07-01

    The Argentine Republic has extensive antecedents in education and training in radiological protection. From the beginning of the nuclear activity in the country was given preponderance to the aspects related with the radiological protection and the personnel's training involved in the employment of ionizing radiations. At the present time these educational activities already overcome the 50 years, there being accumulated a rich and important experience in the matter. In the country the organisms that have assigned by law the responsibility of the regulation and the control of practice them with ionizing radiations are the Nuclear Regulatory Authority and the Ministry of Health and Atmosphere of the Nation. The first one has the mission of protecting people of the noxious effects of the ionizing radiations derived of nuclear activities, the second is in charge of the control of the equipment dedicated specifically to generate X-rays. This includes the responsibility of elaborating, to emit and to make complete the regulations, standards and other corresponding requirements, in particular - in the mark of the present work - regarding to establish demands and to promote education activities and training in radiological protection. The sure use of the benefits that offers the nuclear development in its diverse applications implies to overturn resources, experience and dedication for the personnel's training. In that sense the Argentina has committed recently to undertake the necessary actions to constitute a Regional Center of Education and Training for Latin America and the Caribbean, taking advantage of the important experience obtained in more of 25 years of imparting graduate degree courses in radiological protection and nuclear safety with inter regional and regional character. With that purpose a process of self evaluation has begun (self appraisal), following the limits settled down by the International Atomic Energy Agency in the document 'Education and Training Appraisal in Radiation Protection and the Safety of Radiation Sources' (EduTa). This process includes the invitation to an international mission to visit the country to observe the organization and training capacities in radiological protection and safety of the radiation sources, and the later signature of an agreement of long term in order to assure the continuity of the politicians in the matter. To conclude with success this significant effort will allow to take advantage of the resources efficiently to diffuse in systematic form the last knowledge and experience of radiological protection in Spanish to the whole region of Latin America and the Caribbean. (Author)

  15. Radiological safety methodology in radioactive tracer applications for hydrodynamics and environmental studies; Metodologia de la seguridad radiologica en el empleo de trazadores radiactivos en estudios hidrodinamicos e ingenieria ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Suarez, R; Badano, A; Dellepere, A; Artucio, G; Bertolotti, A [Nuclear Technology National Direction, Montevideo (Uruguay)

    1995-07-01

    The use of radioactive tracer techniques as control sewage disposal contamination in Montevideo Estuarine and Carrasco beach has been studied for the Nuclear Technology National Direction. Hydrodynamic models simulation has been introduced as work methodology. As well as radiological safety and radioactive material applications in the environmental studies has been evaluated mainly in the conclusions and recommendations in this report. maps.

  16. Consequences of lack of specialists in radiation protection in health services and the different ways to overcome it; Consecuencias de la falta de especialistas en proteccion radiologica en los servicios de salud y las diferentes maneras de superarla

    Energy Technology Data Exchange (ETDEWEB)

    Isoardi, Roberto; Acosta, Norma B.; Velez, Graciela, E-mail: roberto@fiuesmen.edu.ar [Comision Nacional de Energia Atomica (FUESMEN/CNEA), Mendoza (Argentina). Fundacion Escuela de Medicina Nuclear

    2013-07-01

    In Argentina, most medical physicists are almost exclusive dedicated to radiotherapy and nuclear medicine to a lesser extent, due to standards where is required the physicist presence. The behavior is not the same in the area of diagnostic radiology where there is no standard to regulate it. The proposal elements to achieve sustainable development in the Medical Physics can be resumed like this: 1) the acceptance of the physicist as the health professional; 2)the request of it incorporation in the control of the Health Ministry (X-ray and ionizing radiations); 3) definition of the professional profiles to have the accreditation and certification of the specialists; 4) effort on the training of specialists in the areas where there is not this human resource.

  17. Contribution of the radiochemistry to the radiological protection in the influence zones of the nuclear facilities; Contribucion de la radioquimica a la seguridad radiologica en las zonas de influencia de las instalaciones nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Archundia, C; Araico, E; Ortiz M, R [Comision Nacional de Seguridad Nuclear y Salvaguardias, Gerencia de Seguridad Radiologica, Departamento de Vigilancia Radiologica Ambiental, Mexico, D.F. (Mexico)

    1991-07-01

    Among the regulatory requirements to satisfy in one first stage, before the beginning of the construction of a nuclear facility, it should be carried out a radiological analytic theoretical study that, with base in the technological characteristics of the power station proposal and making use of the environmental parameters, determine the ecological routes that can carry out to groups of population considered as critical those radionuclides with possibility to be liberated. Also, this study understands the estimate of the equivalent doses for external and internal exhibition that those critical groups would receive real or potentially as a consequence of the normal activity of the power station.

  18. Radiological response and dosimetry in physical phantom of head and neck for 3D conformational radiotherapy; Resposta radiologica e dosimetria em phantom fisico de cabeca e pescoco para radioterapia conformacional 3D

    Energy Technology Data Exchange (ETDEWEB)

    Thompson, Larissa

    2013-07-01

    Phantoms are tools for simulation of organs and tissues of the human body in radiology and radiotherapy. This thesis describes the development, validation and, most importantly, the use of a physical head and neck phantom in radiology and radiotherapy, with the purpose of evaluating dose distribution using Gafchromic EBT2 film in 15 MV 3D conformal radiotherapy. The work was divided in two stages, (1) development of new equivalent tissues and improvement of the physical phantom, and (2) use of the physical phantom in experimental dosimetry studies. In phase (1) parameters such as mass density, chemical composition of tissues, anatomical and biometric measurements were considered, as well as aspects of imaging by computed tomography (CT) and radiological response representation in Hounsfield Units (HU), which were compared with human data. Radiological experiments of in-phantom simulated brain pathologies were also conducted. All those results matched human-sourced data, therefore the physical phantom is a suitable simulator that may be used to enhance radiological protocols and education in medical imaging. The main objective in phase (2) was to evaluate the spatial dose distribution in a brain tumor simulator inserted inside the head and neck phantom developed by the Ionizing Radiation Research Group (NRI), exposed to 15 MV 3D conformal radiotherapy, for internal dose assessment. Radiation planning was based on CT images of the physical phantom with a brain tumor simulator made with equivalent material. The treatment planning system (TPS), CAT3D software, used CT images and prescribed a dose of 200 cGy, distributed in three fields of radiation, in a T-shaped pattern. The TPS covered the planning treatment volume (PTV) with 97% of the prescribed dose. A solid water phantom and radiochromic Gafchromic EBT2 film were used for calibration procedures, generating a dose response curve as a function of optical density (OD). After calibration and irradiation, the film samples were scanned and digitised, yielding OD data, standard deviation and dose response versus OD. The spatial dose profile reached 70% to 120% of the prescribed dose. Such data was plotted and analysed, showing layers dotted with hot spots. Despite the layered profile, as opposed to the smooth dose profile from the TPS, internal doses in the tumor were within a 5% deviation of the 214.4 cGy evaluated by the TPS. In the gamma index analysis, 83.2% of the points with gamma values smaller than 1 (3%/3 mm) between experimental values and TPS data. The tool set composed by the physical phantom and by the film dosimeters was, therefore, suitable for validation of internal doses in radiotherapy protocols. (author)

  19. Progress and results of the project ENETRAP II: European network of education and training in radiation protection; Avances y resultados del proyecto ENETRAP II: Red Europea de educacion y formacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Marco, M.; Llorente Herranz, C.; Coeck, M.; Livosi, P.; Massiot, P.; Moebius, S.

    2013-07-01

    The CIEMAT has participated in a number of working groups and has led the WP 6 for the creation of a database of events of specific training the RPE and the RPO taking into account aspects developed in schemes of defined training. The database includes providers and job training opportunities. Is a tool that will serve as a mechanism for comparison with established standards of training in the project.The project has made great progress in the implementation of the new directive at European level. (Author)

  20. The responsible by the radiological safety in the industry. Among the labour environment and the today technology; El responsable por la seguridad radiologica en la industria. Entre el ambiente laboral y la tecnologia de hoy

    Energy Technology Data Exchange (ETDEWEB)

    Adrian T, W. [Autoridad Regulatoria Nuclear, Subgerencia Control de Instalaciones Radiactivas Clase II y III, Av. del Libertador 8250, Ciudad de Buenos Aires (C1429BNP) (Argentina)]. e-mail: wtruppa@sede.arn.gov.ar

    2006-07-01

    Inside the industrial applications of the sealed radioactive sources, there are clearly exist two defined branches for which these materials are used: radioactive sources used in fixed equipment and in mobile ones. These devices are used in a countless of applications and every time with more advanced technological systems. This requires a permanent improvement inside the training of the responsible one and in turn it introduces an obligatory change to other intervention groups during the useful life of the device. The accident risks to those that are associate the use of these equipment, they are errors during the operation, undue use, maintenance carried out by personal without knowledge, flaws of human type or negligence and incidents happened during the transport. All these 'risks' its are surrounded of different groups of factors that influence during the safe use of the radioactive material, inside the installation of one way or another. Then it stands out the importance of implanting aspects of 'Safety Culture', evaluations of aptitude of the responsible one for the radiological safety, introduction of improvements in aspects of quality and communication of risks, chord to what indicates the normative of the Argentine Republic and the international requirements, which will be approached in the present work. (Author)

  1. The responsible for the radiological safety in the industry. Between the environment work and the technology; El responsable por la seguridad radiologica en la industria. Entre el ambiente laboral y la tecnologia de hoy

    Energy Technology Data Exchange (ETDEWEB)

    Truppa, Walter Adrian [Autoridad Regulatoria Nuclear (Argentina)

    2005-07-01

    Within the industrial applications of sealed radioactive sources, there are two clearly defined branches for which these materials are used: radioactive sources used in fixed and mobile equipment. These devices are used in a myriad of applications and each time with more technological advanced systems. This requires a permanent improvement on the training of the responsible, and introduces a mandatory exchange to other groups of intervention during the useful life of the device. Accident risks during the use of the equipment, although its rate of occurrence is low, are related to mistakes during operation, improper use, maintenance performed by staff without knowledge, human failures or oversights and incidents occurring during transport. All these risks are surrounded by different groups of factors that influence during the safe use of radioactive material within the installation. So, it is evidenced the importance of implementing aspects of the 'Safety Culture' and evaluations of suitability of the person responsible for radiation safety. In this paper we will refer to all the concepts that surround the election of the head of radioactive material, the factors involved during the operation, their training, the obligations of the installation, and responsible for environment and the technology.

  2. Marchiafava-Bignami disease: computed tomography and magnetic resonance evidence of the reversibility of the lesions; Enfermedad de Marchiafava-Bignami: reversibilidad de las lesiones radiologicas en TC y Rm

    Energy Technology Data Exchange (ETDEWEB)

    Vazquez, V.; Belda, J.; Mola, S. [Hospital Vega Baja. Orihuela (Spain); Gilabert, A. [Hospital de La Arrixaca. Murcia (Spain)

    1999-05-01

    We present a case of Marchiafava-Bignami disease with a favorable outcome in a 53-year-old man with a history of chronic alcoholism. the diagnosis was made in the early stages of the disease on the basis of computed tomography (CT) and magnetic resonance (MR) and rapid therapeutic measures were initiated, leading to the improvement of the patient. The CT and MR images revealed the early stages of the typical demyelination of the corpus callosum and the subsequent reversibility of the lesions. (Author) 10 refs.

  3. Twenty years of the national program of surveillance radiation of the atmosphere and terrestrial environment; Veinte anos del programa nacional de vigilancia radiologica de la atmosfera y medio terrestre

    Energy Technology Data Exchange (ETDEWEB)

    Rey del Castillo, C.; Luque Heredia, S.; Marugan Tovar, I.; Salas Collantes, R.; Serling Carmona, A.; Lorente Lorente, P.; Ramos Salvador, L.

    2013-07-01

    This paper presents a global basis the information provided by the program in twenty years of operation, describing the main changes introduced and analyzing how they have influenced the results. The use of program data to inform and in response to questions from individuals or incidents is reviewed. And finally the prospects and major milestones expected to address in the next twenty years are described. (Author)

  4. Doppler echography and utilization of intravenous echo enhancer in the follow-up of hepato carcinoma with percutaneous radiological techniques; Ecografia Doppler y empleo del ecopotenciador intravenoso en el seguimiento del hepatocarcinoma con tecnicas radiologicas percutaneas

    Energy Technology Data Exchange (ETDEWEB)

    Forner, J; Flored de la Torre, M.; Senis, C; Lozano de Arnilla, M C; Ferrer, S; Celma, M I [Hospital General Universitario de Valencia. Valencia (Spain)

    2002-07-01

    To evaluate the utilization of Doppler ultrasound scan in conjunction with echographic enhancer in the follow-up of hepato carcinomas treated by means of radiological intervention techniques. We treated 20 hepatic nodules diagnosed with hepato carcinoma either by means of chemo embolization or percutaneously (either injection of acetic acid or radio-frequency thermo-ablation). Doppler ultrasound scan was performed before and after the treatment by means of sectorial and convex multifrequency probes. Evaluated were the absence, presence and degree of vascularisation, as well as its distribution and characteristics. In all cases, a contrast-en-handed spiral CT was performed. Both studies served as a pattern for comparison before and after treatment. In post-treatment enhanced-echo-Doppler controls of the 18 patients treated with acetic acid, vascularisation was not demonstrated in 7 cases, peripheral vascularisation was detected in 4 cases, perforation vascularisation in another four, and central vascularisation was detected in 3 cases. Contrast-enhanced spiral CT demonstrated superimposed findings, except in one cases, in which the spiral CT detected central capitation of the nodule.With enhanced echo-Doppler, peripheral vascularisation was detected. In both nodules treated by means of radio-frequency thermo ablation, there was detected neither vascularisation in the echo-Doppler nor captation of contrast media in the CT. Doppler ultrasound scan is a good method of follow-up for treated hepato carcinomas. The utilization of echoenhancers increases its ability to detect vascularization it being comparable to that of contrast-enhanced CT. As such, Doppler ultrasound scan together with echoenhancers can help us both in the selection of treatment and evaluation of therapeutic response. (Author) 35 refs.

  5. Radiological protection equipment of the OEP as additional knowledge in higher secondary education in Veracruz; Equipo de proteccion radiologica del POE como conocimiento adicional en la educacion media superior de Veracruz

    Energy Technology Data Exchange (ETDEWEB)

    Castillo R, M. A.; Arias H, G. O. [Universidad Veracruzana, Prol. Venustiano Carranza s/n, Revolucion, 93390 Poza Rica, Veracruz (Mexico); Rojas A, O.; Zuniga R, L., E-mail: mario1997_11@hotmail.com [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Barragan No. 779, Col. Narvarte, 03020 Ciudad de Mexico (Mexico)

    2016-09-15

    The following work then develops information on radiological safety designed for occupationally exposed personnel (OEP) in areas with radioactivity, with the aim of providing pertinent information to students who attend the sixth semester of Higher Secondary Education to contribute to the formation of generic competence s GC1, GC4 and GC5, as well as in the basic disciplinary competence s of the experimental sciences area, particularly the DCE1, DCE4, DCE6, DCE12 and DCE14 to strengthen the skills required in the profile of graduates established in the Common Curricular Framework of the National System of High School according to the agreement number 444. Is intended to provide useful material for teachers to enable them to enrich their activities in the classroom, so that it helps the students to have a better notion and connection with the workplace, involving the management of nuclear energy and disseminate a safety culture that they can apply in their future life in case they even require it. (Author)

  6. Radiological Protection Measurements Implemented during the 16. Pan American and 4. ParaPan American Games: Guadalajara, Mexico, 2011; Medidas de seguridad radiologica implementadas durante los 16. Juegos Panamericanos y 4. Juegos Parapanamericanos: Guadalajara, Mexico, 2011

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-02-15

    Terrorism remains a threat to international stability and security. Often national and international high level public events are the subject of much public interest and receive extensive coverage in the media. In this sense, it is well known that there is a real threat of a terrorist attack in important public events, such as major economic summits, high level political meetings or sporting events. In 1955 and 1975, the 2nd and 7th Pan American Games were organized by the City of Mexico. In 2011, the Pan American Games was the third event of its kind held in Guadalajara, Jalisco. At the national level, the implementation of nuclear security measures in the Pan American Games laid the foundations for a sustainable national nuclear security framework that will continue long after the event. The political decision, the existing legal basis and structure, agency coordination facilitated the incorporation of nuclear security measures. It was also a challenge to integrate all the relevant organizations, provide focus to the threat of terrorism linked to weapons of mass destruction for security games, plan resources and execute the project on time, among other details. For this reason, information and lessons learned that are reported in this document, received in Mexico during the 16th edition of the Pan American Games will be useful for the implementation of nuclear security measures in States with similar situations.

  7. Proceedings of the 15th workshop of the Mexican Society of Radiological Safety C.A.; Memorias de 15. reunion de trabajo de Sociedad Mexicana de Seguridad Radiologica A.C.

    Energy Technology Data Exchange (ETDEWEB)

    Martinez C, T M.C.; Garcia, L M

    1997-12-31

    The basic safety standards have the purpose to establish the fundamental requirements in order to protect vs. ionizing radiations derived of the risks by exposure to the radiations and to maintain the safety of the radiation sources which can generate such exposure. With base on principles thoroughly accepted, like the established for the ICRP and the IAEA, it pretend to maintain the safety of the several types of radiation sources and as complement for other standards, already established, destined to specific facilities like reactors, irradiators and radioactive waste store, regarding which they are appropriate. (author).

  8. Poland's Syndrome: A Case Report

    African Journals Online (AJOL)

    jen

    The Poland's anomaly was first described in 1841 by Sir Alfred Poland as a syndrome presenting with absence or underdevelopment of pectoralis ... He was the second child in a family of four. There was no familial history of similar .... hypoplasia: a middle degree of Poland syndrome. Acta Radiologica 1996; 37: 759-762. 8.

  9. Calibration of well-type ionization chambers

    International Nuclear Information System (INIS)

    Alves, C.F.E.; Leite, S.P.; Pires, E.J.; Magalhaes, L.A.G.; David, M.G.; Almeida, C.E. de

    2015-01-01

    This paper presents the methodology developed by the Laboratorio de Ciencias Radiologicas and presently in use for determining of the calibration coefficient for well-type chambers used in the dosimetry of 192 Ir high dose rate sources. Uncertainty analysis involving the calibration procedure are discussed. (author)

  10. Determination of air kerma standard of high dose rate 192Ir brachytherapy source

    International Nuclear Information System (INIS)

    Pires, E.J.; Alves, C.F.E.; Leite, S.P.; Magalhaes, L.A.G.; David, M.G.; Almeida, C.E. de

    2015-01-01

    This paper presents the methodology developed by the Laboratorio de Ciencias Radiologicas and presently in use for determining of the air kerma standard of 192 Ir high dose rate sources to calibrate well-type chambers. Uncertainty analysis involving the measurements procedure are presented. (author)

  11. Environmental radiological Monitoring to the Pb-210 in waters and soils in the Boquete region in Panama Republic

    International Nuclear Information System (INIS)

    Gibbs, E.; Scotland, E.E.; De Infante, M.; Fernandez, M.A.

    1998-01-01

    Natural water samples were analyzed in Brazil Institutes and shows activities high to 1000 mBq/I in Polonium 210. Later on samples were analyzed in the Departamento de Salud Radiologica de la Caja de Seguro Social to Panama Republic and the results reported to 16.08 mBq/I and 2.4 Bq/Kg respectively

  12. Introduction to social costs of diseases

    Directory of Open Access Journals (Sweden)

    R. Montanelli

    2011-09-01

    Full Text Available Quando si parla di valutazioni economiche in sanità si intendono tipicamente delle analisi comparative, in termini di costi e di conseguenze, di programmi sanitari alternativi come l’introduzione di un nuovo farmaco, di una nuova apparecchiatura diagnostica o di una nuova terapia, confrontata con una situazione precedente o con un’altra alternativa (un altro farmaco, un’altra apparecchiatura diagnostica, un’altra terapia. Come si può evincere dalla tabella I (Gold et al., 1996, in realtà, esistono diverse tecniche di valutazione economica e solo alcune di esse corrispondono pienamente alla definizione appena fornita...

  13. The ETFDH c.158A>G Variation Disrupts the Balanced Binding of ESE and ESS Proteins Causing Missplicing and Multiple acyl-CoA Dehydrogenation Deficiency

    DEFF Research Database (Denmark)

    Olsen, Rikke K J; Brøner, Sabrina; Sabaratnam, Rugivan

    2013-01-01

    Multiple acyl-CoA dehydrogenation deficiency is a disorder of fatty acid and amino acid oxidation caused by defects of electron transfer flavoprotein (ETF) or its dehydrogenase (ETFDH). A clear relationship between genotype and phenotype makes genotyping of patients important not only diagnostica...

  14. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... PD Expert Briefings: Parkinson's and Parenting Expert Briefings: Occupational Therapy and Parkinson's: Tips for Healthy Living Expert ... Thinking Changes: Part 2 CareMAP: Medications and General Health Part 2 ¿Cómo Se Diagnostica el Parkinson? CareMAP: ...

  15. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... Following a Medication Schedule? CareMAP: Medications and General Health Part 1 Ask the Helpline: What Is a ... Discussion ¿Cómo Se Diagnostica el Parkinson? CareMAP: Prioritizing Health Needs of the Caregiver CareMAP: Putting Things in ...

  16. Galectin-3 is Persistently Increased in Early Rheumatoid Arthritis (RA) and Associates with Anti-CCP Seropositivity and MRI Bone Lesions, While Early Fibrosis Markers Correlate with Disease Activity

    DEFF Research Database (Denmark)

    Issa, S. F.; Christensen, A. F.; Lindegaard, H. M.

    2017-01-01

    , USA), and the N-terminal propeptide of type III collagen (PIIINP) by radioimmunoassay (Orion Diagnostica, Finland). One hundred and nineteen, 87 and 60 blood donors served as controls for galectin-3, HYA and PIIINP, respectively. Baseline galectin-3 was significantly elevated in anti-CCP positive (4...

  17. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... Following a Medication Schedule? CareMAP: Medications and General Health Part 1 What Is Patient-Centered Care? Hallucinations ... Thinking Changes: Part 2 CareMAP: Medications and General Health Part 2 ¿Cómo Se Diagnostica el Parkinson? CareMAP: ...

  18. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... 2 ¿Cómo Se Diagnostica el Parkinson? CareMAP: Prioritizing Health Needs of the Caregiver Is Compulsive Behavior a Side Effect ... Are Some Practical Strategies for Improving the Quality of Sleep? How Does Parkinson's Disease Affect the Urinary System? CareMAP: Plans and Scheduling: Part 1 ¿Cuáles son ...

  19. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... Nonmotor Symptoms of Parkinson's Disease Expert Briefings: Gait, Balance and Falls in Parkinson's Disease Expert Briefings: Coping ... Health Part 2 How Does the DBS Device Work? ¿Cómo Se Diagnostica el Parkinson? CareMAP: Cambios para ...

  20. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... in Care: Real Stories CareMAP: Medications and General Health Part 1 What Is Patient-Centered Care? Dealing ... Parkinson Conference: Lessons Learned CareMAP: Medications and General Health Part 2 ¿Cómo Se Diagnostica el Parkinson? CareMAP: ...

  1. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... Health Part 2 How Does the DBS Device Work? ¿Cómo Se Diagnostica el Parkinson? CareMAP: Cambios para ... Depression, Anxiety & Psychosis What Are Some Strategies for Problems with Urination? CareMAP: Changes Around the House: Part ...

  2. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... Health Part 2 How Does the DBS Device Work? ¿Cómo Se Diagnostica el Parkinson? CareMAP: Cambios para ... OHSU - Overview of Parkinson's Disease CareMAP: Activities at Home Hallucinations and Parkinson's with Dr. Friedman CareMAP: Caring ...

  3. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... CareMAP: Dealing with Dementia CareMAP: Medications and General Health Part 1 CareMAP: Cambios en el Pensamiento y ... 2 CareMAP: Getting Dressed CareMAP: Medications and General Health Part 2 ¿Cómo Se Diagnostica el Parkinson? Adolfo ...

  4. Enfermedad de Alzheimer

    OpenAIRE

    Serrano Reyes, Carlos Daniel; Fundación Valle de Lili

    2001-01-01

    ¿Cuáles son las manifestaciones de la enfermedad de Alzheimer?/ Signos de alarma de la enfermedad de Alzheimer/ ¿Cómo se diagnostica la enfermedad?/ ¿Cómo se trata la enfermedad de Alzheimer?/ ¿Qué se está investigando sobre la enfermedad?/ ¿Qué otras enfermedades se parecen al Alzheimer?

  5. MAQUETTE ORL Décembre 2004

    African Journals Online (AJOL)

    della tiroide. Chirurgia : 1994 ; 7 :315-18. 17-Morone G, Meriggi F, Forni E. : elementi di diagnostica a principi di terabit nel canro della tiroide : esperenza pavese 100anni dopo Bottini. G. Chir : 1992 ;. 13:193-298. 18-Block M.A, Miller J. M, Horn R. C. : Thyroid carcinoam with cervical lymph node metastasis. Am J Surg.

  6. Parkinson's Disease Videos

    Medline Plus

    Full Text Available ... 2 ¿Cómo Se Diagnostica el Parkinson? CareMAP: Prioritizing Health Needs of the Caregiver What Is the Impact of PD Medications on Excessive Daytime Sleepiness? Is Compulsive Behavior a Side Effect of PD Medications? CareMAP: Preparing Paid Caregivers What ...

  7. Radiological protection on interstitial brachytherapy and dose determination and exposure rate of an Ir-192 source through the MCNP-4B; Proteccion radiologica en braquiterapia intersticial y determinacion de la dosis y tasa de exposicion de una fuente de Ir-192 mediante el MCNP-4B

    Energy Technology Data Exchange (ETDEWEB)

    Morales L, M.E. [INEN, Av. Angamos Este 2520- Surquillo, Lima (Peru)

    2006-07-01

    The present work was carried out in the Neurological Sciences Institute having as objective to determine the dose and the rate of exhibition of the sources of Iridium 192, Iodine 125 and Palladium 103; which are used to carry out implant in the Interstitial Brachytherapy according to the TG43. For it we carry out a theoretical calculation, its are defined in the enter file: the geometry, materials of the problem and the radiation source, etc; in the MCNP-4B Monte Carlo code, considering a punctual source and for the dose determination we simulate thermoluminescent dosemeters (TLD): at 5 cm, 50 cm, 100 cm and 200 cm of the source. Our purpose is to analyze the radioprotection measures that should take into account in this Institute in which are carried out brain biopsies using a Micro mar stereotactic mark, and in a near future with the collaboration of a doctor and a cuban physique seeks to be carried out the Interstitial Brachytherapy technique with sources of Ir-192 for patient with tumors like glioblastoma, astrocytoma, etc. (Author)

  8. Convention on Early Notification of a Nuclear Accident and Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency; Convencion Sobre La Pronta Notificacion De Accidentes Nucleares Y Convencion Sobre Asistencia En Caso De Accidente Nuclear O Emergencia Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-09-15

    This document includes the information given in document lNFCIRC/335/Add.6 - INFCIRC/336/Add.7. It accordingly supersedes that document [Spanish] El presente documento comprende la informacion que figura en el documento INFCIRC/335/Add.6 - INFCIRC/336/Add.7. En consecuencia, reemplaza a ese documento.

  9. JRODOS system: a modern and efficient tool for the management and preparation of nuclear and radiological emergencies and rehabilitation. Implementation in Spain; El sistema JRODOS: una herramienta moderna y eficaz para la gestion y preparacion de emergencias nucleares y radiologicas y la rehabilitacion. Implementacion en Espana

    Energy Technology Data Exchange (ETDEWEB)

    Montero Prieto, M.; Dvirzhark, A.; Acero, A.; Gallego Diaz, E.

    2011-07-01

    JRODOS system is revealed as an efficient, flexible and user-approved at European level to assist in the management of nuclear and radiological emergencies and the subsequent rehabilitation of contaminated environments, both at the national response in the first phase emergence as a regional / local level in emergency preparedness and recovery environment with the help of the social partners concerned.

  10. Collimator with compensated filtration: clinical adaptation for recommendation 4f of the EU about the radiation protection in oral dental radiology; Colimador con filtracion compensada: adaptacion clinica para alcanzar la recomendacion 4F de la Union Europea sobre proteccion radiologica al paciente en radiologia odontologica

    Energy Technology Data Exchange (ETDEWEB)

    Alcaraz, M; Garcia-Vera, C; Bravo, C La; Morant, J J; Armedo, D Y; Canteras, M

    2006-07-01

    Recent recommendations by the European Union (2004) for performing lateral cranial cephalometry (LCC) state that collimation should be maximized so that only those tissues necessary are irradiated when performing clinical diagnoses, although the fact that many manufacturers do not incorporate these elements in their equipment design has been recognised (recommendations 4f). Aim: the manufacture and utilization of a collimator with a pre-patient compensating filter for LLC which may be used in most extraoraldental radiology units, as well as determining the reduction in the dose of radiation absorbed by more sensitive tissues exposed to said clinical exploration. Making use of mannequins, phantom and craniums, we constructed a collimator with a compensating filter and established the necessary technical, dosimetric and quality specifications for its clinical use. Subsequently, we studied 16 patients referred for cephalometric study, determining the radiation dose (TLDs) in both the patients (crystalline lens, frontal lobe, parotid/submaxillary/thyroid glands and brain) and in the radiographic film, as well as in different parts of the collimator/filter. Al presented we are aiming for its clinical use by carrying out LCC in another 16 patients referred of orthodontic treatment but with the pre-a patient introduction of the tested collimator with the compensating filter as a substitute for the usual technique. The collimation reduced the field or radiation by some 40% and with that, so too the radiated tissues. The compensating filter reduced the dose in tissues by some 34.2. Our collimator has allowed the radiological image to be obtained with only one third the usual radiation dose. The dose reaching the film shies only between 17% less than in the usual technique and didn't alter its diagnostic capacity. A reduction of 61,6% of the dose administered to the patient is achieved by incorporating the collimator and filter to most radiological equipment without the need for renovating or substituting existing apparatus. (Author)

  11. UY 100 standard basic regulation of protection and radiological safety: approve by Industry Energy and Mining Ministry 28/6/2002 Resolution; Norma UY 100 reglamento basico de proteccion y seguridad radiologica: aprobada por Resolucion del Ministro de Industria Energia y Mineria del 28/6/2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    The following standard studies basic purposes of the radiological protection,practices classification, required for authorization in nuclear installations, equipment and radiation sources to grant permission, occupational, medical, and public exposition, and emergency plans.

  12. Aspects of radiological safety and protection in the decontamination of the Benefit plant of uranium in Ciudad Aldama and in the storage of its residues in Pena Blanca, Chihuahua, Mexico; Aspectos de seguridad y proteccion radiologica en la descontaminacion de la planta de beneficio de uranio en Ciudad Aldama y en el almacenamiento de sus residuos en Pena Blanca, Chihuahua, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz C, M A [Facultad de Quimica, UNAM (Mexico)

    1998-07-01

    Between 1969 and 1971 the National Commission of Nuclear Energy and the Mining Fostering Commission operated coordinately a production plant of uranium and molybdenum concentrates (Benefit plant) at Ciudad Aldama, Chihuahua, Mexico. During two years of operation some 45 tonnes of uranium concentrate and approximately 35,000 tonnes of uranium wetlands were produced. These last were stored in a dam to 120 m. toward West of the plant. Due to the nearness of the population with respect to what was the Benefit plant and over all to the wetland dam, the objective of this work had two main aspects: On the one hand, to carry out the works of radiological decontamination of the benefit plant of uranium, according to the established normative by the Regulatory organization in matter of radiological safety and protection (CNSNS) for the population and the hard workers. After that the works mentioned were realized it was considered that the estate which comprises what was the Benefit plant did not reach the established criteria by the CNSNS for being considered of unrestricted use such estate and it was not allowed any type of construction in the zone which could be showed the residual contamination which remains there. On the other hand, to determine the site where could be stored the radioactive wastes generated by the radiological decontamination and the wetland mobilization for its definitive storage in benefit of the present population and of the future generations due to the radionuclides which are in a such material. The site more adequate technical and economically to storage the wastes generated by this activity was evaluated. Whereby studies about demography, use of soil and water, meteorology, hydrology and ecology were realized. The site selected being in the Pena Blanca mountains, Chihuahua, place where is located one of the uranium zones and the most important of the country. In this work, specific objectives also were treated such as: knowing the radiological conditions of the benefit plant before and after of the decontamination; realizing indirect measurements which allowing to measure the Ra-226 concentrations and its migration once reached the level of natural estate where was the wetland in the Benefit plant of Ciudad Aldama and in this way to determine the velocity of migration toward freatic mantles in the 25 years which were in the open air without any internal and external protection. (Author)

  13. U Y 108 standard regulation standard of the radiological safety for medical and dental radiodiagnostic practice: approve for the Industry Energy and Mining Ministry 28/6/2002 Resolution; Norma UY 108 Norma reguladora de seguridad radiologica para la practica de radiodiagnostico medico y odontologico: Aprobada por Resolucion del Ministro de Industria Energia y Mineria del 28/6/2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-06-28

    Guarantee and effective control in Medical and Dental Radiodiagnostic for avoid unnecessary exposition in public and workers as well limit the possibility of accidents and the patient dose was the minimal necessary.

  14. Effect of the ionizing radiation of the {sup 60}Co on the radiological properties of guar gum and carboxymethylcellulose for the food industry use; Efeito da radiacao ionizante de {sup 60}Co sobre propriedades radiologicas da goma guar e carboximetilcelulose para uso na industria alimenticia

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Fernando Fabris; Mastro, Nelida Lucia del [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    2002-07-01

    Hydrosoluble polysaccharides or gums are long chain polymers that dissolve or disperse in water. When added to foods, they change rheological characteristics, stabilize emulsions, promote particle suspension, control crystallization and inhibit sineresis of processed foods. Guar gum is an hydro soluble polysaccharide obtained from the seed of Cyamopsis tetragonolobus. Carboxy-methylcellulose (CMC) is an homopolisaccharide prepared by the treatment of alkaline cellulose with sodium monochloroacetate. This work presents the results of the study of radiation effects on the viscosity of guar gum and CMC used for the food industry when irradiated with {sup 60} Co ionizing radiation. (author)

  15. Computerized system to perform a general radiological evaluation of the persons that live in areas affected by the nuclear accident of Chernobyl; Sistema computarizado para la evaluacion radiologica general de personas que habitan areas afectadas por el accidente nuclear de Chernobil

    Energy Technology Data Exchange (ETDEWEB)

    Cruz Suarez, R; Valdes, M [Centro de Proteccion e Higiene de las Radiaciones, La Habana (Cuba)

    1994-12-31

    A computer program (EVACID) was developed with the purpose of performing a general radiological evaluation. EVACID system allows to automate an important group of dosimetric calculations, as well as to store, codify analyze and relate among them the medical information of the persons affected by the nuclear accident of Chernobyl.

  16. The guiding principles of the IRPA on the involvement of interested parties (Stake holders) in the management of radiation protection; Los principios orientativos de la IRPA sobre la implicacion de las partes interesadas (Stakeholders) en la gestion de la proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Arranz, L.; Carboneras, P.; Gallego, E.; Garcia, A.; Rodriguez, M.

    2011-07-01

    There is general consensus that the effective and well structured involvement of interested parties (stake holders) improves the quality of decision making and can achieve more effective and sustainable decisions that generate greater confidence among people and groups affected. The International Radiation Protection Association (IRPA) could not remain indifferent to this issue and has prepared a document of guiding principles for consideration, recommends to its members.

  17. Radiological and alimentary assessment of the agriculture using phosphogypsum (PG) in agricola soils recovery in Guadalquivir. Final report; Evaluacion de la seguridad alimentaria y radiologica en la aplicacion del fosfoyeso como enmienda de suelos agricolas recuperados en las marismas del Gualquivir Informe Final

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, J. M.

    2006-07-01

    The main goal of this Project has been the radiological and alimentary assessment of the agriculture use of phosphogypsum (PG), a by-product of the fertilizer industry, as Ca-amendment in reclaimed salt-marsh soils in SW Spain. The work-plan included: PG characterization (concentrations of radionuclide and heavy metals, {sup 2}22Rn exhalation from PG stacks), experimental field studies attending to the effect of PG in agriculture soils and drainage waters, and studies on soil-to-plant transfer of radionuclides and heavy metals (through both, field and greenhouse studies).

  18. Course on Radiological Protection and Quality Assurance in Medical Radiodiagnostic Practices (4th Ed.) : Tel educational through Internet on Health Science; Curso de Proteccion Radiologica y garantia de calidad en radiodiagnostico (4Ed): teleensenanza a traves de Internet en ciencias de la salud

    Energy Technology Data Exchange (ETDEWEB)

    Alcaraz, M.; Chico, P.; Armero, D.; Saura Iniesta, A. M.; Fernandez, H.; Vicente, V.

    2006-07-01

    The creation of an interdepartmental project subsidised by the Spanish Ministry of Education has made possible the elaboration of a series of specific didactic materials on Radiological Protection and Quality Assurance in Medical Radiodiagnostic Practices, which has led to the publication of a specific manual and practical notebook. As a consequence, this material now constitutes the working base for those professionals exposed to ionising radiation who are following the first Tel educational continuous formation course in Spanish via the Internet on this subject. (Author)

  19. Training of Radiation Protection and Medical Physics in Latin American Through the SEPR (Griapra): Six years of Cooperation; La formacion en proteccion radiologica hospitalaria en America Latina y el El Caribe a traves de la SEPR (Griapra): balance de seis anos de cooperacion

    Energy Technology Data Exchange (ETDEWEB)

    Pena, J. J.; Rossell, M. A.; Calvo, J. L.; Vega, J. M.

    2003-07-01

    The Ibero-American Group of Scientific Societies of Radiological Protection (GRIAPRA) was constituted on 30-September-1996 as the end of a process that the SEPR began in its V National Congress (Santiago de Compostela, 1994). In this work are presented some of the results of the experience accumulated by the SEPR (GRIAPRA) in training and professional update of latin-american radiologists,medical physicists and technician during these last six years:Cuba (La Habana 1998), Peru (Lima 1999), Mexico (Guadalajara 2000), Brazil (Recife, 2001), Peru (Lima 2002) and Cuba (La Habana 2003). They are shown the professional profiles of the american colleagues that in number superior to 300 persons have been accepted in these training courses imparted by members very qualified of the SEPR and SEFM, the theoric-practical structure of these courses, the design of their programming, documentation, the sources of financing, the general analysis of the wisdoms and mistakes and the proposal to continue with this cooperation in the future. (Author)

  20. An indicator to objectify the improvements obtained in radiological protection applied to evaluate the operation of Sanitary Radiophysics in Santa Fe Argentina; Un indicador para objetivar las mejoras logradas en Proteccion radiologica aplicado a evaluar el accionar de radiofisica sanitaria de Santa Fe - Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Lescano, R.; Caspani, C. [Radiofisica Sanitaria- DiGAM-MSyma de Santa Fe. Obispo Gelabert 3586. (3000) Santa Fe (Argentina)

    1998-12-31

    In this work it is proposed a quality indicator for actions of radiological protection considering all personal doses to occupational exposed personnel (OEP) they expressed as a middle taking into account to the work loading at each installation. (Author)

  1. Need to monitoring the particulate components and gaseous components of the I-131 in air, on Radiological monitoring networks. impact of the accident of Fukushima Dai-chi in Spain; Necesidad de monitorizar las componentes particulada y gaseosa del {sup 1}31I en aire, en redes de vigilancia radiologica. Impacto en Espana del accidente de Fukushima DAI-ICHI

    Energy Technology Data Exchange (ETDEWEB)

    Baeza Espasa, A.; Caballero Andrada, M.; Corbacho Merino, J. A.; Ontalba Salamanca, M. A.; Rodriguez Perulero, A.; Valencia Corrales, D.; Vasco Vargas, J.

    2013-07-01

    Following a nuclear accident with significant overseas evacuations, it should be accurately determined concentration radio iodines into the atmosphere, given its important contribution to the radiological impact produced. Automatic networks radiation monitoring aim to provide as quickly as possible, reliable information on these radiological changes, to take necessary countermeasures. (Author)

  2. 'On line' course for the periodical training in radiological safety of the workers of a radioactive facility; Cuso 'on line' para la capacitacion periodica en seguridad radiologica de los trabajadores de una instalacion radiactiva

    Energy Technology Data Exchange (ETDEWEB)

    Amador B, Z.H.; Ayra P, F.E.; Torres B, M.B. [Centro de Isotopos, Ave. Monumental y Carretera La Rada, Km. 3, Guanabacoa, Apartado 3415, Ciudad de La Habana (Cuba)]. e-mail: dsr@centis.edu.cu

    2006-07-01

    The results of an 'on line' course for the periodical training in radiological safety of the workers of a radioactive installation are presented. The course is developed for own specialists. The following topics are approached: the state of the art of the studies on the biological effects of the ionizing radiations, the new national regulations, the analysis of the behavior of the occupational exposure, of the obtained experiences of the radiological events, of the results of the radiological surveillance of the work positions, of the detected violations and of the behavior of the outstanding systems and the optimization. The study of the acquired experiences in the packing and the transportation of radioactive materials and the administration of the radioactive waste are included. The study of the course by one month is organized and then two convocations of theoretical exams are executed and one for the evaluation practices of the instructions and procedures. To evaluate the effectiveness of the course a survey it is applied and the later behavior of indicators of the radiological safety of the plant is analyzed. The results that are obtained show a positive balance. (Author)

  3. Device for the acquisition and visualization in real time of the velocity and direction of wind in a radiological post stage; Dispositivo para la adquisicion y visualizacion en tiempo real de la velocidad y direccion del viento en una posta radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Ledo P, L.M.; Guibert G, R. [CEADEN, Calle 30 No. 502 e/5 y 7 Ave. Miramar, Ciudad La Habana (Cuba); Dominguez L, O.; Alonso A, D.; Ramos V, E.O. [CPHR, Calle 20 No. 4113 e/41 y 47, Playa, 11300 La Habana, A.P. 6195 C.P. 10600 (Cuba)]. e-mail: ledo@ceaden.edu.cu

    2006-07-01

    The work shows the development, construction and post stage of a device dedicated to the acquisition and transmission in real time of the information on the behavior of the meteorological variables: velocity and wind direction. It is introduced for the first time in an observation position the automatic monitoring, in real time, using the tools that it offers the digitalisation of the information and the computation. The obtained data are registered in a PC, its are visualized appropriately and can be objects of later analysis. It was developed the application program Autoclima for such purpose. (Author)

  4. Physical, chemical and radioactive characterization of co-products from titanum dioxide industry for valorization in the cement industry; Caracterizacion fisico-quimica y radiactiva de los sub-productos provenientes de la industria de dioxido de titanio para su valorizacion en la industria del cemento: implicaciones radiologicas.

    Energy Technology Data Exchange (ETDEWEB)

    Gazquez, M.J.; Mantero, J.; Bolivar, J.P.; Garcia-Tenorio, R.; Vaca, F.

    2011-07-01

    The present study was conducted to characterize the raw materials (ilmenite and slag), waste (red gypsum) and several co-products (sulphate monohydrate and sulphate heptahydrated) form the titanum dioxide industry in relation to their elemental composition (major, minor and trace elements), granulometry, mineralogy, microscopic morphology, physical composition and radioactive content in order to apply this knowledge in the valorization of the co-products in the fields sucha as construction, civil engineering, etc. In particular, the main properties of cements produced with different proportions of red gypsum were studied, and the obtained improvements, in relation to Ordinary Portland Cements (OPC) were evaluated. It was also demonstrated that the levels of pollutants and the radioactive content in the produced RG cements, remain within the regulated safety limits. (Author). 38 refs.

  5. Physical, chemical and radioactive characterization of co-products from titanium dioxide industry for valorization in the cement industry; Caracterizacion fisico-quimica y radiactiva de los sub-productos provenientes de la industria de dioxido de titanio para su valorizacion en la industria del cemento: implicaciones radiologicas.

    Energy Technology Data Exchange (ETDEWEB)

    Gazquez, M.J.; Mantero, J.; Bolivar, J.P.; Garcia-Tenorio, R.; Vaca, F.

    2011-07-01

    The present study was conducted to characterize the raw materials (ilmenite and slag), waste (red gypsum) and several co-products (sulphate monohydrate and sulphate heptahydrated) form the titanium dioxide industry in relation to their elemental composition (major, minor and trace elements), granulometry, mineralogy, microscopic morphology, physical composition and radioactive content in order to apply this knowledge in the valorization of the co-products in the fields such a as construction, civil engineering, etc. In particular, the main properties of cements produced with different proportions of red gypsum were studied, and the obtained improvements, in relation to Ordinary Portland Cements (OPC) were evaluated. It was also demonstrated that the levels of pollutants and the radioactive content in the produced RG cements, remain within the regulated safety limits. (Author). 38 refs.

  6. Program of environmental radiological surveillance of the radioactive wastes storage center of Maquixco in the period January-December 1991; Programa de vigilancia radiologica ambiental del centro de almacenamiento de deschos radiactivos de Maquixco en el periodo Enero-Diciembre dde 1991

    Energy Technology Data Exchange (ETDEWEB)

    Gaso P, M.I

    1991-12-15

    The primary objective of all program of environmental radiological surveillance (PVRA), it is to follow the evolution of the radioactive content of the links of the chains that constitute the different ways of transfer of the radioactivity toward the man, with the purpose of making a realistic evaluation of the environmental impact produced by the installation under surveillance. In the CADER in Mexico, only accidents or escapes of radioactivity of slow evolution can be detected. At the moment the radioactive wastes in this installation are not treated. In this report the results obtained during the year 1991 are presented. (Author)

  7. Radiological evaluation of an industrial complex of phosphate fertilizer production in response to the current regulations on health protection against ionizing radiation; Evaluacion radiologica de un complejo industrial de produccion de fertilizantes fosfatado al actual reglamento sobre proteccion sanitaria contra radiaciones ionizantes

    Energy Technology Data Exchange (ETDEWEB)

    Mosqueda Pena, F.; Bolivar Raya, J. P.

    2011-07-01

    We performed a comprehensive study of the radioactive and radiological follow NORM industrial complex, in addition to that regulation, the Criteria for radiological protection against exposure to natural radiation issued by the Nuclear Safety Council (CSN).

  8. Convention on Early Notification of a Nuclear Accident and Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency; Convencion Sobre La Pronta Notificacion De Accidentes Nucleares Y Convencion Sobre Asistencia En Caso De Accidente Nuclear O Emergencia Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-10-15

    This document includes the information given in document INFCIRC/335/Add.7 - .S. It accordingly supersedes that document [Spanish] El presente documento comprende la informacion que figura en el documento INFCIRC/335/Add.7 - INFCIRC/336/Add.8. En consecuencia, reemplaza a ese documento.

  9. Calibration of the High Resolution Gamma Spectrometry Detection Systems from the Environmental Radioactivity Unit and Radiological Surveillance (ARU and RV); Calibracion de los Sistemas Detectores de Espectrometria Gamma de Alta Resolucion de la Unidad de Radiactividad Ambiental y Vigilancia Radiologica (URA y VR)

    Energy Technology Data Exchange (ETDEWEB)

    Suarez-Navarro, J. A.; Gasco, C.; Arana, M.; Suanez, A.

    2012-11-01

    In accordance with international regulations and with the quality criteria imposed by the internal quality system of the laboratory of gamma spectrometry, which belongs to the Unit of Environmental Radioactivity and Radiation Monitoring (URA y VR), it is necessary to perform a periodic calibration of the measurement systems of gamma spectrometry. The equipment calibration carries with the need for the preparation of the geometries of measurement and calibration in energy and in efficiencies. This report reflects the procedures for the preparation of the wide range of geometries available in the laboratory, as well as the different calibrations performed with those geometries in almost all the laboratory gamma detectors using the CANBERRA software Genie 2k. (Author) 9 refs.

  10. Collimator with compensated filtration: clinical adaptation for recommendation 4f of the EU about the radiation protection in oral dental radiology; Colimador con filtracion compensada: adaptacion clinica para alcanzar la recomendacion 4F de la Union Europea sobre proteccion radiologica al paciente en radiologia odontologica

    Energy Technology Data Exchange (ETDEWEB)

    Alcaraz, M.; Garcia-Vera, C.; Bravo, C. La; Morant, J. J.; Armedo, D. Y.; Canteras, M.

    2006-07-01

    Recent recommendations by the European Union (2004) for performing lateral cranial cephalometry (LCC) state that collimation should be maximized so that only those tissues necessary are irradiated when performing clinical diagnoses, although the fact that many manufacturers do not incorporate these elements in their equipment design has been recognised (recommendations 4f). Aim: the manufacture and utilization of a collimator with a pre-patient compensating filter for LLC which may be used in most extraoraldental radiology units, as well as determining the reduction in the dose of radiation absorbed by more sensitive tissues exposed to said clinical exploration. Making use of mannequins, phantom and craniums, we constructed a collimator with a compensating filter and established the necessary technical, dosimetric and quality specifications for its clinical use. Subsequently, we studied 16 patients referred for cephalometric study, determining the radiation dose (TLDs) in both the patients (crystalline lens, frontal lobe, parotid/submaxillary/thyroid glands and brain) and in the radiographic film, as well as in different parts of the collimator/filter. Al presented we are aiming for its clinical use by carrying out LCC in another 16 patients referred of orthodontic treatment but with the pre-a patient introduction of the tested collimator with the compensating filter as a substitute for the usual technique. The collimation reduced the field or radiation by some 40% and with that, so too the radiated tissues. The compensating filter reduced the dose in tissues by some 34.2. Our collimator has allowed the radiological image to be obtained with only one third the usual radiation dose. The dose reaching the film shies only between 17% less than in the usual technique and didn't alter its diagnostic capacity. A reduction of 61,6% of the dose administered to the patient is achieved by incorporating the collimator and filter to most radiological equipment without the need for renovating or substituting existing apparatus. (Author)

  11. Results of the benchmarking in radiological protection practices during fuel reloads in the nuclear power plants of Limerick (BWR) and Ginna (PWR) in the United States of North America; Resultados del benchmarking en practicas de proteccion radiologica durante recargas de combustible en las centrales nucleoelectricas de Limerick (BWR) y Ginna (PWR) en los Estados Unidos de Norteamerica

    Energy Technology Data Exchange (ETDEWEB)

    Lara H, M. A., E-mail: marco.lara@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km 42.5, Alto Lucero, Veracruz (Mexico)

    2011-11-15

    The nuclear power plant of Laguna Verde, unique in our country, has been imposed several goals related with the continuous improvement of their acting; increase in the quantity of continuous days for operation cycle, improvement in the chemical indexes of the reactor coolant, improvement in the indexes of nuclear security, improvement in the indicators of industrial security, improvement in the standards of radiological protection, etc.; in this last item is precisely where is necessary to search creative solutions to be able to maintain the collective doses of the personnel so low as reasonably it is possible (ALARA) especially due to the last projects of extension of useful life of the nuclear power plant (zinc injection, noble metals and hydrogen) and of power increment of the nuclear power plant of Laguna Verde, same that represent in the short period an increment of collective dose and of exposition levels (until 200%) in very specific points of the primary systems of the reactor. (Author)

  12. Invasive growth patterns of juvenile nasopharyngeal angiofibroma: radiological imaging and clinical implications.

    Science.gov (United States)

    Szymańska, Anna; Szymański, Marcin; Czekajska-Chehab, Elżbieta; Szczerbo-Trojanowska, Małgorzata

    2014-07-01

    Juvenile nasopharyngeal angiofibroma is a benign lesion with locally aggressive nature. Knowledge of its typical growth patterns is crucial for precise preoperative staging and adequate preoperative patient counseling. This pictorial essay focuses on characteristic radiological features and paths of invasive growth of this rare tumor. Also, the impact of accurate preoperative evaluation of tumor extensions on surgical planning and results of treatment are discussed. © The Foundation Acta Radiologica 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  13. La rodilla y sus problemas

    OpenAIRE

    Llinás Hernández, Paulo José; Fundación Valle de Lili

    1998-01-01

    Lesiones de rodilla más frecuentes/Meniscos/¿Qué se siente cuando hay una lesión de los meniscos?/ ¿Cómo se diagnostica?/ ¿Cómo se debe tratar la lesión del menisco?/Ligamentos/ ¿Qué es el Ligamento cruzado Anterior?/ ¿Cuáles son los síntomas de una lesión en este ligamento?/ ¿Cómo se diagnostica una lesión del Ligamento Cruzado Anterior?/ ¿ Cuál es el tratamiento de una ruptura del Ligamento Cruzado Anterior?/ ¿Cómo es la rehabilitación después de la cirugía?/Artritis de rodilla/ ¿Qué es la ...

  14. Enfermedad de Parkinson

    OpenAIRE

    Orozco V., Jorge Luis; Fundación Valle de Lili

    2002-01-01

    ¿Qué tan frecuente es la enfermedad de Parkinson?/ ¿Qué ocasiona la enfermedad?/ ¿Existen otras formas de Parkinsonismo?/ ¿Quién desarrolla la enfermedad de Parkinson?/ ¿Cuales son los síntomas principales?/ ¿Cómo se diagnostica la enfermedad de Parkinson?/ ¿Cómo se trata la enfermedad?/Tratamiento quirúrgico/Aspectos prácticos del tratamiento/Verdades sobre la enfermedad de Parkinson.

  15. Red wine and cardiovascular health the "French Paradox" revisited

    OpenAIRE

    Giuseppe Lippi; Massimo Franchini; Gian Cesare Guidi

    2010-01-01

    Giuseppe Lippi1, Massimo Franchini2, Gian Cesare Guidi31U.O. di Diagnostica Ematochimica, 2Servizio di Immunoematologia e Trasfusione, Dipartimento di Patologia e Medicina di Laboratorio, Azienda Ospedaliero, Universitaria di Parma, Parma, Italy; 3Sezione di Chimica Clinica, Dipartimento di Scienze Morfologico-Biomediche, Università degli Studi di Verona, Verona, ItalyAbstract: The healthful and nutritive properties of wine have been acknowledged for thousands of years, but the obs...

  16. Cada cuánto me tengo que hacer la prueba de Papanicoláu (How Often to Get a Pap Test)

    Centers for Disease Control (CDC) Podcasts

    2013-01-10

    El cáncer de cuello uterino ha disminuido en los Estados Unidos, pero cada año se le diagnostica a más de 12,000 mujeres y 4,000 mueren. Este podcast habla sobre la importancia de las pruebas de Papanicoláu.  Created: 1/10/2013 by MMWR.   Date Released: 11/4/2013.

  17. [Experimental model of severe local radiation injuries of the skin after X-rays].

    Science.gov (United States)

    Kotenko, K V; Moroz, B B; Nasonova, T A; Dobrynina, O A; LIpengolz, A A; Gimadova, T I; Deshevoy, Yu B; Lebedev, V G; Lyrschikova, A V; Eremin, I I

    2013-01-01

    The experimental model of severe local radiation injuries skin under the influence of a relatively soft X-rays on a modified device RAP 100-10 produced by "Diagnostica-M" (Russia) was proposed. The model can be used as pre-clinical studies in small experimental animals in order to improve the treatment of local radiation injuries, especially in the conditions of application of cellular therapy.

  18. Alergia a medicamentos

    OpenAIRE

    Serrano Reyes, Carlos Daniel

    2009-01-01

    Tomado de:http://www.valledellili.org/sitio/images/stories/pdf/CSDiciembre_2009.pdf ¿cuándo sospechar una alergia a medicamentos?/¿Cómo se diagnostica la alergia a medicamentos?/¿Cuáles son los fármacos que más provocan alergia?/¿Qué factores de riesgo existen para desarrollar reacciones a medicamentos?/¿Qué se debe hacer con un individuo alérgico a medicamentos?

  19. CARACTERÍSTICAS DE ATENCIÓN DE SALUD EN EL PROGRAMA DE TUBERCULOSIS PULMONAR. HOSPITAL REGIONAL HONORIO DELGADO DE AREQUIPA, 2015.

    OpenAIRE

    CHIRINOS MAYCA, LUIS ANGEL

    2016-01-01

    TUBERCULOSIS PULMONAR SIGNIFICADO EXÁMENES COMPLEMENTARIO APRECIACIÓN DIAGNOSTICA TRATAMIENTO DE LA TUBERCULOSIS PULMONAR EN UN PROGRAMA DE TBC ATENCIÓN DE SALUD CONCEPTOS Y DEFINICIONES DE ATENCIÓN EN SALUD LOS CUATROS PILARES EN LA ATENCIÓN DE SALUD PROPÓSITO, OBJETIVOS Y PRINCIPIOS DE LA ATENCIÓN EN SALUD ASPECTOS METODOLÓGICOS PARA LA ATENCIÓN SALUD ANTECEDENTES INVESTIGATIVOS

  20. Falla cardíaca (primera parte)

    OpenAIRE

    Flórez Alarcón, Noel Alberto; Fundación Valle de Lili

    2006-01-01

    Anatomía y función del corazón/¿Qué es la falla cardíaca?/Causas de falla cardíaca/¿Cómo prevenir la falla cardíaca?/¿Qué es un factor de riesgo?/¿Cuáles son los síntomas y signos de la falla cardiaca?/¿Cómo se diagnostica la falla cardiaca?

  1. Measurement of dose equivalent with personal dosemeters and instrumentation of radiological protection in the new operative magnitudes ICRU, for external fields of radiation beta. Part IV. Survey of the angular response of instruments used in radiological protection in secondary patron fields of beta radiation ({sup 90}Sr/{sup 90}Y (1850 MBq and 74 MBq), {sup 204}TI (18.5 MBq) and {sup 147}Pm (518 MBq)); Medicion de dosis equivalente con dosimetros personales e instrumentacion de proteccion radiologica en las nuevas magnitudes operativas ICRU, para campos de radiacion beta externos. Parte IV. Estudio de la respuesta angular de instrumentos empleados en proteccion radiologica en campos patrones secundarios de radiacion beta ({sup 90}Sr/{sup 90}Y (1850 MBq y 74 MBq), {sup 204}TI (18.5 MBq) y {sup 147}Pm(518 MBq))

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez R, J.T. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1994-02-15

    Tests type were made (type test) in the following commercial instrumentation commonly used in radiological protection: Geiger-Mueller Counters (FH40 FE), Plastic Scintillators (NE-BP/6/4A), Ionization Chambers (RO-5) and Proportional Counters (HP-100A; gas:P-10). With object of checking the possibility that these they can carry out the new operative unit ICRU, H' (0.07; {alpha}). The tests consisted on determining the energy and angular response of the detectors in secondary patron fields of beta radiation, for isotopes of {sup 90}Sr/{sup 90}Y (1850 MBq and 74 MBq and {sup 147}Pm(518 MBq). The results show the inadequate of these commercial instruments for the realization of the H' operative unit (0.07; {alpha}) in beta external fields. Due to flaws in the design, construction and calibration of the instruments for this type of radiation fields (Author)

  2. LA DIAGNOSI DELLE COMPETENZE LINGUISTICHE IN UN CONTESTO MULTILINGUE: UN PROCESSO CONTINUO CHE FAVORISCE L’INSEGNAMENTO E L’APPRENDIMENTO INDIVIDUALIZZATO

    Directory of Open Access Journals (Sweden)

    Drorit Lengyel

    2011-07-01

    Full Text Available Il presente studio affronta il problema della valutazione diagnostica delle competenze linguistiche in contesti educativi multilingui, con particolare attenzione ai bisogni dei bambini e degli adolescenti immigrati. Vengono brevemente esposti gli obiettivi, le funzioni e i principi della valutazione diagnostica e della valutazione formativa considerate parte integrante di una educazione linguistica continua che prevede un insegnamento-apprendimento individualizzato. Sul piano teorico le procedure della valutazione diagnostica delle competenze linguistiche in contesti multilingui fanno riferimento all’apprendimento delle lingue inteso come attività socio-culturale.     Language diagnostics in multilingual settings with respect to continuous procedures as accompaniment of individualized learning and teaching   This study provides an introduction to language diagnostics in multilingual educational settings, with particular reference to the needs of children and adolescents from migrant backgrounds. It summarises the objectives and functions of language diagnostics and the principles that govern diagnostics including formative assessment, considered to be an integral part of continuous language education that emphasises individualised teaching and learning. From a theoretical perspective, diagnostic procedures in multilingual settings treat language learning as a socio-cultural activity.  

  3. Calibration and study of the measurement capabilities of real-time gamma spectrometry equipment, developed for the renewal of the network of automatic stations for environmental radiological surveillance of the Generalitat de Catalunya; Calibracion y estudio de las capacidades de medida de loes equipos de espectrometria gamma en tiempo real desarrollados para la renovacion de la Red de Estaciones Automaticas de vigencia radiologica ambiental de la generalitat de Catalunya

    Energy Technology Data Exchange (ETDEWEB)

    Casanovas, R.; Prieto, E.; Salvado, M.

    2013-07-01

    The renewal of the automatic environmental radiation surveillance network of the Gereralitat of Catalunya has been carried out through the development and implementation of gamma-spectrometry-based equipment. The monitors use scintillation cristals, either NaI(Tl) or LaBr{sub 3}(Ce) and currently, there are 3 types of equipment: water radioactivity monitors, aerosols on a particulate filter monitors and direct measurement monitors. In this paper, we expose the basic features of its operation, the details of their calibration and the minimum detectable activity concentrations for some isotopes.

  4. Resultados clínicos e radiológicos en serie de artrodesis cervical anterior con caja de fusión intersomática y placa Resultados clínicos e radiológicos em série de artrodese cervical anterior com dispositivo de fusão intersomática e placa Clinical and radiologica outcomes in series of anterior cervical fusion with intersomatic cage and plate

    Directory of Open Access Journals (Sweden)

    Lyonel Beaulieu Lalanne

    2012-06-01

    Full Text Available OBJETIVOS: Analizar los resultados clínicos e radiológicos de una serie de pacientes sometidos a artrodesis cervical anterior con caja de fusión intersomática (CAGE y placa. MÉTODOS: Análisis retrospectivo de serie de pacientes sometidos a artrodesis cervical anterior con caja de fusión intersomática y placa entre los años 2004 y 2009. Revisión de fichas clínicas y radiografías, registro de edad, sexo, diagnósticos, nivel operado, complicaciones, evolución clínica y radiológica. Técnica quirúrgica de Smith-Robinson. Las cajas de fusión intersomática fueron llenadas con sustitutos de huesos. Deambulación 12 horas después de la cirugía, alta a las 48 horas, collar cervical intermitente por 2 semanas. Evaluación clínica mediante criterios de Odom. Seguimiento 17 a 78 meses. RESULTADOS: Diagnósticos: Hernia del núcleo pulposo (HNP cervical, 44 (71%, mielopatía, 11 (17,7%, fracturas, 7 (11,3%. Nivel 1: 44 (71%, Nivel 2: 15 (24,2%, Nivel 3: (4,8%. El nivel C5-C6 incluyó 92% de los casos. Alivio del dolor radicular: 60 (97%. Recuperación del déficit neurológico: 59 (95,2%. Alivio de la mielopatía: 8/11 pacientes (73%. Alivio del dolor cervical: 56 (90%. Resultados clínicos: 91,9% excelentes y buenos. Complicaciones (12,9%: 4 disfagias transitorias (6,5%, 1 disfagia permanente (1,6%, 2 disfonías transitorias (3,3%, 1 subcidencia con aflojamiento del implante y fractura asintomática de placa (1,6%. No hubo pseudoartrosis. CONCLUSIONES: Esta serie presenta buenos resultados clínicos, com alivio del dolor y recuperación neurológica comparables con los hallazgos en la literatura. El uso de la caja de fusión intersomática evita complicaciones de la zona dadora y, cuando es asociado a placa cervical anterior permite fijación intersomática inmediata, dando soporte estructural adecuado, con buenos resultados y sin complicaciones a largo plazo.OBJETIVOS: Analisar os resultados clínicos e radiológicos de uma série de pacientes submetidos a artrodese cervical anterior com dispositivo de fusão intersomática (CAGE e placa. MÉTODOS: Análise retrospectiva de série de pacientes submetidos a artrodese cervical anterior com dispositivo de fusão intersomática e placa entre 2004 e 2009. Revisão de fichas clínicas e radiografias, registro de idade, sexo, diagnósticos, nível operado, complicações, evolução clínica e radiológica. Técnica cirúrgica de Smith-Robinson. Os dispositivos de fusão intersomática foram preenchidos com substitutos ósseos. A deambulação ocorreu 12 horas depois da cirurgia, alta às 48 horas, colar cervical intermitente por 2 semanas. Avaliação clínica pelos critérios de Odom. Acompanhamento de 17 a 78 meses. RESULTADOS: Diagnósticos: hérnia de núcleo pulposo (HNP cervical, 44 (71%, mielopatia, 11 (17,7%, fratura 7 (11,3%. Nível 1: 44 (71%, Nível 2: 15 (24,2%, Nível 3: (4,8%. O nível C5-C6 incluiu 92% dos casos. Alívio da dor radicular: 60 (97%. Recuperação do déficit neurológico: 59 (95,2%. Alívio da mielopatia: 8/11 pacientes (73%. Alívio da dor cervical: 56 (90%. Resultados clínicos: 91,9% excelentes e bons. Complicações (12,9%: 4 disfagias transitórias (6,5%, 1 disfagia permanente (1,6%, 2 disfonias transitórias (3,3%, 1 subsidência com afrouxamento do implante e fratura assintomática da placa (1,6%. Não houve pseudoartrose. CONCLUSÕES: Esta série apresenta bons resultados clínicos, com alivio da dor e recuperação neurológica comparáveis aos encontrados na literatura. O uso da caixa de fusão intersomática evita complicações na região doadora e quando é associado à placa cervical anterior permite fixação intersomática imediata, proporcionando suporte estrutural adequado, com bons resultados e sem complicações a longo prazo.OBJECTIVES: To analyze the clinical and radiological results of a series of patients undergoing anterior cervical arthrodesis with cage and plate. METHODS: Retrospective analysis of series of patients undergoing anterior cervical arthrodesis with cage and plate between 2004 and 2009. Review of medical records and radiographs, record of age, sex, diagnosis, level operated on, complications, clinical and radiological revision. Surgical technique of Smith-Robinson. The cages were filled with bone substitutes. Walking occurred 12 hours after surgery, hospital discharge at 48 hours, intermittent cervical collar for 2 weeks. Clinical assessment by Odom criteria. Follow up from 17 to 78 months. RESULTS: Diagnosis: cervical herniated nucleus pulposus (HNP, 44 (71%, myelopathy, 11 (17.7%, fracture 7 (11.3%. Level 1: 44 (71%, Level 2: 15 (24.2%, Level 3 (4.8%. The C5-C6 level included 92% of the cases. Radicular pain relief: 60 (97%. Recovery of neurological deficit: 59 (95.2%. Relief of myelopathy: 8/11 patients (73%. Neck Pain Relief: 56 (90%. Clinical Results: 91.9% excellent and good. Complications (12.9%: four transient dysphagias (6.5%, one permanent dysphagia (1.6%, two transient dysphonias (3.3%, one subsidence with of the implant and asymptomatic plaque fracture (1.6%. No pseudoarthrosis. CONCLUSIONS: This series presents good clinical results with pain relief and neurological recovery comparable to those found in the literature. The use of intersomatic cage avoid complications in the donor site and when it is associated with anterior cervical plate fixation allows immediate intersomatic fixation, providing adequate structural support, with good results and no long-term complications.

  5. Radiological clinical correlation of pulmonary and extrapulmonary tuberculosis with CD4 T lymphocyte counts in patients with V.I.H. in the San Juan de Dios Hospital during the period 2004 to the first half of 2009; Correlacion clinico radiologica de la tuberculosis pulmonar y extrapulmonar con el conteo de linfocitos T CD4 en pacientes con V.I.H. en el Hospital San Juan de Dios durante el periodo 2004 hasta el primer semestre de 2009

    Energy Technology Data Exchange (ETDEWEB)

    Campos Fallas, Christian

    2010-07-01

    The association between radiographic presentation of tuberculosis (TB), pulmonary and extrapulmonary, and the count of CD4 T lymphocytes in patients infected with Human Immunodeficiency Virus (HIV), are investigated. The order has been to achieve a diagnosis and isolation early of coinfected patients. A retrospective analysis was performed of the clinical history, chest radiograph, CD4 T lymphocyte count of 25 HIV-infected patients with documented pulmonary or extrapulmonary tuberculosis diagnosis. 18 patients diagnosed (72%) with radiologic atypical skipper, 14 of them with significant immunosuppression (TB patients with CD4 T count <200 / mm {sup 3}), while only 6 (24%) with radiologic typical skipper of TB was associated with negative sputum smears (p=0.06). In HIV patients with CD4 T lymphocyte counts T <200 / mm {sup 3}, no respiratory symptoms and atypical radiographic pattern, may be suspected active TB, even with negative sputum smears. (Author) [Spanish] La asociacion entre la presentacion radiografica de tuberculosis (TB), pulmonar y extrapulmonar, y el conteo de linfocitos T CD4 en pacientes con infeccion por Virus de Inmuno Deficiencia Humana (VIH), son investigados. El fin ha sido lograr un diagnostico y aislamiento temprano de pacientes coinfectados. Un analisis retrospectivo fue realizado de la historia clinica, radiografia de torax, conteo de Linfocitos T CD4, de 25 pacientes con infeccion por VIH con diagnostico documentado de tuberculosis pulmonar o extrapulmonar. 18 pacientes diagnosticados (72%) con patron radiologico atipico, 14 de ellos con inmunosupresion significativa (pacientes con TB con conteo de Linfocitos T CD4 <200/mm{sup 3}), mientras que solo 6 (24%) con patron radiologico tipico de TB fue asociado con baciloscopias negativas, (p=0.06). En pacientes con VIH con conteos de Linfocitos T CD4 <200/mm{sup 3}, no sintomaticos respiratorios y con patron radiologico atipico, puede ser sospechado TB activa, aun con baciloscopias negativas. (autor)

  6. The protection system to Brazilian Nuclear Program

    International Nuclear Information System (INIS)

    Andreuzza, Mario Giussepp Santezzi Bertottelli

    1997-01-01

    The Sistema de Protecao ao Programa Nuclear Brasileiro-SIPRON (Protection System to Brazilian Nuclear Program) was established in 1980. It is intended to accomplish in only one system, all the actions related to security and protection for Nuclear Facilities in Brazil. The author presents in detail the protection system SIPRON, describing the system structure and organization, the functions and obligations of the system involved main organizations, as well as, the system operation and behaviour during an postulated occurrence of a nuclear emergency. It is also described an Exercise that happened in June of 1997 at the Nuclear Power Plant (NPP) Angra I, after two simulated tests in December of 1996 and April of 1997. The NPP Angra I Emergency Plan Exercise was a good opportunity to test the SIPRON structure and preparedness program. It was verified, included by International Atomic Energy Agency observers, the system involved organizations effectiveness and the procedures efficacy to protect the public and the environmental. Finally, it is shown the SIPRON activities of routine, the system obstacles and the expected future performances. (author)

  7. 2003 assessment of PCDDs-PCDFs emissions from the Copesul/South Petrochemical complex located in southern Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Deschamps, M.; Allard, J.L. [SNC-Lavalin Environment Inc., Montreal, PQ (Canada); Rangel, C.M.P.; Ribeiro, C.; Dos Santos, S.T.F. [Companhia Petroquimica do Sul, Triunfo (Brazil)

    2004-09-15

    COPESUL is the Raw Material and Utilities Central of the South Petrochemical Complex, this, being the most modern industrial facility of its type in Brazil, and the second largest naphtha cracker in the country. Responsible for more than 40% of Brazilian olefins production, it is also among the largest crackers (on the same site) in the world. The majority of COPESUL products are transformed by downstream industries of the Complex into thermoplastics resins, synthetic rubber, styrene and solvents that are widely used in the manufacturing of packing material (food, hygiene, cleaning), electronic appliances, medical and surgical supplies, toys and in the car industries, to be consumed in Brazil and foreign countries. At the request of the state of Rio Grande do Sul Environmental Protection Agency (Fundacao Estadual de Protecao Ambiental or FEPAM), an Environmental Assessment of Priority Pollutants (EAPP) was performed by Copesul at the end of the year 2003. EAPPs have been voluntarily performed at the Petrochemical Complex since 1986 on a basis of once every three year. It is now performed as a requirement which is part of the petrochemical plant operational license. Among the different (organic and inorganic) parameters tested, PCDDs-PCDFs remained a main concern to the local State Agency with regards to the Complex activities and of it's potential impact on the human health and the environment, despite the fact that the Complex does not use nor produce any organochlorinated product.

  8. Underground waters management program at Camacari petrochemical complex; Programa de gerenciamento das aguas subterraneas do Polo Petroquimico de Camacari

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Paulo Roberto Penalva dos [Empresa de Protecao Ambiental S.A. (CETREL), Camacari, BA (Brazil); Nobre, Manoel de Melo Maia [Maia Nobre Engenharia Ltda., Maceio, AL (Brazil)

    1996-12-31

    The Camacari Petrochemical Complex, situated in the state of Bahia, is the largest and most important integrated industrial complex in Latin America. With the primary objective of preventing any environmental impact that could be caused by its processes, monitoring the quality of the air and water resources in the vicinity became common practice. In regard to the water resources, since 1992, the industries of the Camacari Complex, under the coordination of CETREL - Empresa de Protecao Ambiental S.A - have conducted an integrated program to monitor, protect and establish rational use of the groundwater resources at the region. This program complies with the conditions established by the Environmental Protection Board of Bahia State (CEPRAM). Several specific goals were already achieved by this program and others still under way. Some of them include: Elimination of most of the primary contaminant sources to groundwater; Evaluation of secondary sources based on plumes behavior and remediation of isolated areas with contaminated saturated and unsaturated zones; Interruption of production wells in the region to prevent contamination of deeper formations; Operations of a pump-and-treat system consisting of 12 extraction wells located down gradient of the Camacari Complex. (author) 7 refs.

  9. Early presentation of osteonecrosis in acute lymphoblastic leukemia

    DEFF Research Database (Denmark)

    Mogensen, Signe Sloth; Harila-Saari, Arja; Frandsen, Thomas Leth

    2017-01-01

    Osteonecrosis (ON) is usually considered treatment related in patients with acute lymphoblastic leukemia (ALL). We report two patients with presentation of ON at the time of ALL diagnosis. Both were females and diagnosed with ALL at age 8 and 14 years. In the latter, some symptoms and radiologica......Osteonecrosis (ON) is usually considered treatment related in patients with acute lymphoblastic leukemia (ALL). We report two patients with presentation of ON at the time of ALL diagnosis. Both were females and diagnosed with ALL at age 8 and 14 years. In the latter, some symptoms...

  10. Dose evaluation for workers employed in an industry involving enamel paints containing zirconium silicate; Valutazione di dose per i lavoratori occupati in una industria che utilizza vernici a smalto contenenti silicato di zirconio

    Energy Technology Data Exchange (ETDEWEB)

    Castellani, C.M.; Berico, M.; De Zaiacomo, T.; Formignani, M.; Ianni, A.; Nobili, C.; Sandri, S.; Vasselli, R. [ENEA, Centro Ricerche Ezio Clementel, Bologna (Italy). Dipt. Ambiente

    1999-07-01

    In the frame of the European Recommendations for radiological protection, an evaluation of the annual dose has been made for workers employed in an industry for the production of sanitary equipment involving the use of enamel paints containing zirconium silicate. [Italian] Nella prospettiva dell'applicazione della direttiva europea relativa alla protezione radiologica dei lavoratori, vengono presentati i risultati relativi alla valutazione di dose annuale complessiva per i lavoratori occupati in una industria per la produzione di articoli igienico-sanitari che utilizza vernici a smalto contenenti silicato di zirconio. Il fine e' la valutazione del problema radioprotezionistico per gli addetti a causa delle impurezza radioattive presenti nei materiali utlizzati.

  11. Fibrodysplasia ossificans progressiva

    OpenAIRE

    Tonholo-Silva, Edward R.; Adachi, Elza Aquimi; Tafner, Maria Salete; Yoshinaga, Lucia

    1994-01-01

    Fibrodisplasia (miosite) ossificante progressiva (FOP) é doença rara, de herança autossômica dominante, na qual ocorre ossificação ectópica progressiva e malformação esquelética, principalmente no tecido conectivo dos músculos. O diagnóstico é baseado nos achados clínicos e demonstração radiologica das malformações esqueléticas. Relatamos o caso de uma menina de 5 anos de idade com FOP. Fibrodysplasia (myositis) ossificans progressiva (FOP) is a rare autosomal dominant disorder in which th...

  12. (Re)implantation of quality system of LCR (Laboratory for Radiation Sciences) for accreditation in the standard ABNT NBR ISO/IEC 17025:2005; (Re)implantacao do sistema da qualidade do LCR para acreditacao na ABNT NBR ISO/IEC 17025:2005

    Energy Technology Data Exchange (ETDEWEB)

    Leite, Sandro P., E-mail: leite_sp@ig.com.br [Rede Sibratec, Sao Paulo, SP (Brazil); Fernandes, Elisabeth O.; David, Mariano G.; Pires, Evandro J.; Alves, Carlos F.E.; Almeida, Carlos E. [Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil)

    2014-07-01

    This paper presents preparing procedure of the metrology laboratory (LABMETRO), which belongs Laboratorio de Ciencias Radiologicas of Rio de Janeiro , for postulating accreditation of its services metrology to INMETRO. This process, supported by the Technological Services Network SIBRATEC/FINEP for Radiation Protection and Dosimetry Technological Services, had as one of its aims to avoid possible technical barriers to the purchase services in the area of ionizing radiation laboratories. Accreditation will also enable the integration of services such laboratories in Brazilian Calibration Network (RBC). (author)

  13. MYDOZE: Application Web for management and optimisation of doses to patients in tests radiodiagnostics

    International Nuclear Information System (INIS)

    Peinado Zamora, A. B.; Laguna Lobato, M. A.; Gil Agudo, A.; Zapata Jimenez, J. C.

    2013-01-01

    The service of Radiofisica y Proteccion Radiologica del Hospital general Universitario de Ciudad Real, carried out a study whose objective is to optimize the dose to patients undergoing diagnostic scans with ionizing radiation. To address this task, is required a software tool that facilitates on the one hand the acquisition of dosimetric data acquired digital equipment and the other interface of exploitation of this data for statistics and analysis of these. the computer tool to develop should allow storing parameters with information demographic and dose of the patient in medical scans thanks to called DICOM medical image standard. (Author)

  14. Determination of factors through Monte Carlo method for Fricke dosimetry from 192Ir sources for brachytherapy

    International Nuclear Information System (INIS)

    David, Mariano Gazineu; Salata, Camila; Almeida, Carlos Eduardo

    2014-01-01

    The Laboratorio de Ciencias Radiologicas develops a methodology for the determination of the absorbed dose to water by Fricke chemical dosimetry method for brachytherapy sources of 192 Ir high dose rate and have compared their results with the laboratory of the National Research Council Canada. This paper describes the determination of the correction factors by Monte Carlo method, with the Penelope code. Values for all factors are presented, with a maximum difference of 0.22% for their determination by an alternative way. (author)

  15. MYDOZE: Application Web for management and optimisation of doses to patients in tests radiodiagnostics; MYDOZE: Aplicacion Web para gestion y optimizacion de dosis a pacientes en pruebas radiodiagnosticas

    Energy Technology Data Exchange (ETDEWEB)

    Peinado Zamora, A. B.; Laguna Lobato, M. A.; Gil Agudo, A.; Zapata Jimenez, J. C.

    2013-07-01

    The service of Radiofisica y Proteccion Radiologica del Hospital general Universitario de Ciudad Real, carried out a study whose objective is to optimize the dose to patients undergoing diagnostic scans with ionizing radiation. To address this task, is required a software tool that facilitates on the one hand the acquisition of dosimetric data acquired digital equipment and the other interface of exploitation of this data for statistics and analysis of these. the computer tool to develop should allow storing parameters with information demographic and dose of the patient in medical scans thanks to called DICOM medical image standard. (Author)

  16. (Re)implantation of quality system of LCR (Laboratory for Radiation Sciences) for accreditation in the standard ABNT NBR ISO/IEC 17025:2005

    International Nuclear Information System (INIS)

    Leite, Sandro P.; Fernandes, Elisabeth O.; David, Mariano G.; Pires, Evandro J.; Alves, Carlos F.E.; Almeida, Carlos E.

    2014-01-01

    This paper presents preparing procedure of the metrology laboratory (LABMETRO), which belongs Laboratorio de Ciencias Radiologicas of Rio de Janeiro , for postulating accreditation of its services metrology to INMETRO. This process, supported by the Technological Services Network SIBRATEC/FINEP for Radiation Protection and Dosimetry Technological Services, had as one of its aims to avoid possible technical barriers to the purchase services in the area of ionizing radiation laboratories. Accreditation will also enable the integration of services such laboratories in Brazilian Calibration Network (RBC). (author)

  17. Defecography of rectal wall prolapse conditions; Defecografia nelle malattie parietali del retto da prolasso

    Energy Technology Data Exchange (ETDEWEB)

    Salzano, A.; Muto, M.; De Rosa, A. [Azienda Sanitaria di Rilievo Nazionale A. Cardarelli, Naples (Italy). Servizio di Neuroradiologia; Ginolfi, F.; Carbone, M.; Amodio, F.; Rossi, E. [Naples Univ. Federico 2. (Italy). Ist. di Scienze Radiologiche; Tuccillo, M. [Azienda Sanitaria di Rilirvo Nazionale A. Cardarelli, Naples (Italy). 2. Servizio di Radiologia

    1999-06-01

    Pelvic floor and rectal prolapse conditions have greatly benefited by new imaging and instrumental diagnostic approaches, and especially defecography, for both pathophysiological interpretation and differential diagnosis. The authors investigated the efficacy of defecography in the assessment of rectal prolapse, and in particular the role of videproctography in diagnosis such dynamic disorders. The dynamic changes of ampulla are well depicted by videoproctography, which showed anorectum normalization and spontaneous reduction of invagination after intussusception. Defecography exhibited good capabilities in showing rectal wall function abnormalities. Finally, some features of videoproctography such as low radiation dose, non-invasiveness and ease of execution, make the examination acceptable to patients with anorectal disorders and for the follow-up of rectal prolapse. [Italian] Le malattie del pavimento pelvico e dei prolassi del retto hanno tratto numerosi vantaggi da nuovi approcci di diagnostica per immagini e strumentali, specialmente dall'esame defecografico, sia nell'interpretazione fisiopatologica che nella diagnostica differenziale dei disordini anorettali. Scopo del lavoro: valutare l'efficacia della metodica defecografica nel riconoscimento delle malattie da prolasso del retto e in particolare il ruolo svolto dalla videoproctografia nella documentazione diagnostica e nel definire i principali elementi semeiologici riscontrabili in tali malattie in modo dinamico. Le fasi dinamiche della valutazione morfologica e posizionale dell'ampolla rettale sono ben evidenti nella viedeoproctografia, che documenta dopo l'intussuscezione la normalizzazione del complesso anorettale e la riduzione spontanea dell'invaginazione parietale. In questo studio si sottolineano le possibilita' diagnostiche della defecografia integrata da videoproctografia nel riconoscimento delle malattie parietali funzionali del retto e alcune peculiarita

  18. Monoartritis gotosa de muñeca asociada a necrosis del semilunar: a propósito de un caso clínico

    OpenAIRE

    Olmedo García, N.; Mackenney Carrasco, Enrique

    1994-01-01

    Se presenta un caso de monoartritis de muñeca asociada a imágenes radiológicas de necrosis avascular del semilunar que, tras biopsia de la sinovial, se diagnostica de artritis gotosa. Esta asociación es rara. La alteración metabólica que se produce en la gota da lugar a una sinovitis, que provoca un aumento de presión intraarticular. Esta hiperpresión en el carpo podría determinar una necrosis isquémica del semilunar, pero con una evolución diferente a la enfermedad de Kienböck...

  19. Caso Clínico ARP Nº9: Cardiomiopatia Hipertrofica e Cardiopatia Isquémica

    OpenAIRE

    Marques, Hugo

    2017-01-01

    Caso 1 / A70 anosEcg com alterações da repolarização ventricularEcocardiograma com má janela.Queixas de precordialgia atípica.Cardiomiopatia hipertrofica apical com aneurisma apical (burn out ápex). A HCM apical é difícil de diagnosticas por ecocardiograma. Alterações da repolarização são frequentes.Caso 2 / B55 anosInternamento há 2 meses com dor precordial, ligeiro aumento das troponinas e discinésia ventricular esquerda apical. Fez cateterismo com coronarias normais.Por ausência de recuper...

  20. Síndrome metabólico

    OpenAIRE

    Fériz Bonelo, Karen; Fundación Valle de Lili

    2007-01-01

    Síndrome metabólico/ ¿Cuál es la causa del Síndrome metabólico? / ¿Quién está en riesgo de sufrir síndrome metabólico?/ ¿Cómo se diagnostica el síndrome metabólico?/ ¿Cómo se trata el síndrome metabólico?/ ¿Cómo prevenir el síndrome metabólico?

  1. La implementación del programa “revolución educativa” en la educación media técnica de la provincia centro del departamento de Boyacá (2002-2010)

    OpenAIRE

    Buitrago Bernal, Alejandra

    2015-01-01

    El objetivo de esta investigación diagnostica radica en explicar los efectos de la implementación de la Revolución Educativa en las instituciones de Educación Media Técnica en la Provincia Centro del Departamento de Boyacá. Es así que se pretende demostrar si los procesos de implementación de articulación de la Institución Educativa Francisco de Paula Santander y la Institución Técnica Nacionalizada con el SENA, responden o no a las necesidades de los estudiantes frente a la coyuntura Naciona...

  2. Las Competencias Informacionales: Un marco para el desarrollo del aprendizaje autónomo

    OpenAIRE

    Fúquene Bolaños, Sandra Viviana; Cabrales, Omar

    2016-01-01

    En el siglo XXI la tecnología y la sociedad globalizada han modificado la manera en cómo se aprende, los modos de vida y el acceso al conocimiento. En la educación superior, por ejemplo, estos cambios se reflejan en la incorporación de aparatos digitales en el aula de clase. Así, la investigación diagnostica por medio de encuestas y entrevistas cuáles son las competencias informacionales de los estudiantes de la Facultad de Ingeniería, de los programas Civil, Industrial, Mecatrónica y Multime...

  3. DIAGNÓSTICO, CLÍNICA Y TRATAMIENTO DE LA FENILQUETONURIA (PKU)

    OpenAIRE

    Cornejo E., Verónica; Raimann B., Erna

    2004-01-01

    Las hiperfenilalaninemias (HFA) se producen por una deficiencia o ausencia de la enzima fenilalanina hidroxilasa (FAH) la que metaboliza la fenilalanina (FA) en tirosina (TIR), acumulándose la FA en la sangre y el cerebro, causando un daño progresivo en el sistema nervioso central, que posteriormente se traduce en un retardo mental profundo si la enfermedad no se diagnostica y trata oportunamente. Un diagnóstico tardío causa alteraciones conductuales, hipopigmentación de tegumentos, convulsio...

  4. Enfermedad celiaca en niños del noroeste de México: características clínicas de 24 casos

    OpenAIRE

    N. Sotelo Cruz; A.M. Calderón de la Barca; J.G. Hurtado Valenzuela

    2013-01-01

    Antecedentes: La enfermedad celiaca (EC) es una enteropatía autoinmune inducida por el gluten del trigo dietético, con serias consecuencias si no se diagnostica y trata tempranamente. Hay además otras alteraciones asociadas a la ingestión de gluten, que es importante conocer, por su multiplicidad de presentaciones clínicas. Objetivos: Describir los patrones más comunes de presentación de EC y alteraciones asociadas al gluten en niños de la región noroeste de México, con incipiente conocimi...

  5. Estatus Eléctrico durante el sueño lento y factores de Riesgo Neurológico: Diferentes manifestaciones de un mismo sindrome

    OpenAIRE

    Angélica María Uscátegui Daccarett; Johann Sebastian Ortiz de la Rosa

    2014-01-01

    Este estudio se realizó para conocer las características de un grupo de pacientes con estatus eléctrico en sueño lento evaluados en la Fundación Liga Central Contra la Epilepsia, entre los años 2003 a 2013. Se buscaron factores asociados al desarrollo del síndrome, así como la respuesta al tratamiento. De los pacientes detectados que cumplieron con los criterios según ILAE 2010, se tomaron datos sobre antecedentes, síntomas y respuesta terapéutica. En ese periodo de tiempo fueron diagnostica...

  6. Diagnóstico de la formulación de políticas e instrumentos para el control urbano a la actividad de la construcción en las ciudades colombianas

    OpenAIRE

    Oliver Romero, Mariangela

    2016-01-01

    En la ciudad colombiana existe una tendencia al desarrollo inmobiliario que busca el mayor aprovechamiento del suelo, sin ajustarse las normas y disposiciones de ordenamiento territorial. El interés de esta investigación diagnostica con propuesta de solución es el de caracterizar el desarrollo de la política urbana, en instrumentos y normativa para el Control Urbano en algunas de las ciudades colombianas, con el fin de identificar las fallas existentes a nivel administrativo, logístico, educa...

  7. Cáncer de cuello uterino: realidad y cambio de paradigmas

    Directory of Open Access Journals (Sweden)

    Alfredo Quiñones Ceballos

    2014-09-01

    Full Text Available El carcinoma invasor del cuello uterino clásicamente tiene pico de frecuencia entre los 35-50 años. El programa de prevención cubano criba con citología la población femenina entre 25 y 60 años, reexaminándolas cada tres años. A pesar del esfuerzo se diagnostica cáncer en estadio avanzado tanto en mujeres jóvenes, como también entre los 40 a 60 años de edad.

  8. Características de las gestantes diabéticas hospitalizadas en el Complejo Asistencial Universitario de Palencia (CAUPA). Análisis del período 2001-2015

    OpenAIRE

    Moreno Aroca, Ricardo

    2017-01-01

    La Diabetes Mellitus (DM) es la alteración metabólica que más frecuentemente se asocia a la gestación1. La DM Gestacional (DMG) se define como una intolerancia a los carbohidratos, de severidad variable, que se diagnostica por primera vez en el curso del embarazo, independientemente del tiempo de evolución, necesidad de insulina, grado de trastorno metabólico o persistencia tras el embarazo2. Está relacionada con complicaciones maternas, fetales y neonatales, que son más habituales en los hij...

  9. Mejora de procesos logísticos en la comercializadora agropecuaria Cienfuegos

    OpenAIRE

    Covas-Varela, Daylí; Martínez-Curbelo, Gretel; Delgado-Álvarez, Noemí; Díaz-Peña, Mailiú

    2017-01-01

    El presente trabajo está dirigido al desarrollo de la agricultura con el objetivo de mejorar los procesos logísticos con enfoque de cadenas de suministros en la UEB Comercializadora de Productos Agropecuarios Cienfuegos, para así corregir sus principales defectos con vista a perfeccionar e integrar el funcionamiento de la misma. Para la mejora de las actividades logísticas se caracteriza y se diagnostica la cadena de suministro con mayor deficiencia, se utilizan métodos estadísticos y program...

  10. Síndrome de apnea-hipopnea obstructiva del sueño y enfermedades respiratorias

    OpenAIRE

    Londoño-Palacio, Natalia; Machado, Carlos

    2017-01-01

    Resumen El síndrome de apnea-hipopnea obstructiva del sueño (SAHOS) es una enfermedad sistémica con afectación de múltiples órganos. El presente artículo trata la relación que existe entre el SAHOS y algunas enfermedades que comprometen el sistema respiratorio como son la enfermedad pulmonar obstructiva crónica, el asma, la tos crónica, el síndrome de hipoventilación alveolar y la fibrosis pulmonar. Por lo general, cada una de estas afectaciones se diagnostica por separado, pero es importante...

  11. Aneurisma y fístula arterio-venosa renal: manejo quirúrgico laparoscópico asistido por robot

    OpenAIRE

    CASTILLO C,OCTAVIO A; CUENTAS J,MARIANO; VIDANGOS V,RUBÉN; GUTIÉRREZ,RODRIGO; PALAVECINO R,PATRICIO

    2013-01-01

    Introducción: Los aneurismas de la arteria renal constituyen una patología infrecuente, y plantean dificultades en la decisión terapéutica. Objetivo: Presentar un caso de un aneurisma complejo intrarenal, asociado a una fístula arterio-venosa de alto flujo, el cual fue resuelto con asistencia robótica. Caso clínico: Paciente de 51 años, con historia prolongada de hipertensión arterial, al cual, en estudio radiológico de rutina, se le diagnostica 3 aneurismas intrarenales derechos, asociado a ...

  12. Programa nacional de prevención y consejería genética del retinoblastoma mediante detección de mutaciones en el gen rb.

    OpenAIRE

    Frayle, H.; Guevara, G.

    2011-01-01

    El retinoblastoma es un raro tumor ocular que se diagnostica en los niños, 40% de los casos se consideran hereditarios y 60% esporádicos. El modelo genético propuesto por Knudson involucra
    una la doble mutación inactivante del gen Rb, exclusivamente somática en los esporádicos y germinal más somática en los hereditarios. Esta investigacin tuvo como objetivo caracterizar las mutaciones en el gen Rb mediante secuenciación directa y evaluar su utilidad en la consejería genética....

  13. Colangiopatía portal: complicación poco frecuente de la hipertensión portal

    OpenAIRE

    Veloso, Victoria; Servente, Liliana; Hernández, Nelia

    2017-01-01

    Resumen: Se describe el caso clínico de una mujer de 62 años en la que se diagnostica una estenosis del colédoco en el contexto de hipertensión portal prehepática (cavernomatosis portal). Abstract: We report the case of a 62 years old woman with a choledochal stricture and chronic obstruction of the portal vein (portal cavernomatosis). Resumo: Relatamos o caso de uma mulher de 62 anos com diagnóstico de estenose do colédoco no contexto da hipertensão portal pré-hepática (cavernomat...

  14. TRATAMIENTO POR FETOSCOPIA DEL SÍNDROME DE TRANSFUSIÓN FETO FETAL EN CLÍNICA ALEMANA DE SANTIAGO

    OpenAIRE

    Yamamoto C,Masami; Astudillo D,Julio; Pedraza S,Daniel; Muñoz S,Hernán; Insunza F,Álvaro; Fleiderman D,José; Riveros K,Rodrigo

    2009-01-01

    Antecedentes: El síndrome de transfusión feto fetal (STFF) afecta el 15% de los gemelares monocoriales y tiene una mortalidad de 90% cuando se diagnostica antes de las 26 semanas. Objetivo: Evaluar el resultado perinatal mediante fotocoagulación con láser porfetoscopia, de las anastomosis vasculares placentarias en pacientes con STFF. Método: Fotocoagulación láser por fetoscopia de 18 casos de SFF tratados en Clínica Alemana de Santiago entre los años 2005-2008. Resultados: 72,8% de los embar...

  15. Relación de los parámetros del cribado de aneuploidías del primer trimestre con las alteraciones del metabolismo de los hidratos de carbono en la gestante.

    OpenAIRE

    Muñoz Ledesma, Ana María

    2013-01-01

    [ES] La diabetes mellitus (DM) es la alteración metabólica que más frecuentemente asociada con el embarazo. Aproximadamente un 1% de las mujeres embarazadas presentan DM antes de la gestación y entre un 1-12%1 dependiendo de la estrategia diagnóstica empleada, presentan DM en el transcurso del embarazo. La diabetes gestacional (DG) es una intolerancia de los hidratos de carbono o disminución de su tolerancia, que aparece o se diagnostica durante la gestación independientemente ...

  16. Aspectos comparativos entre el cáncer mamario humano y canino con especial referencia al cáncer mamario inflamatorio:grado histológico de malignidad, mecanismos endocrinos e interleucinas

    OpenAIRE

    Andrés Gamazo, Paloma Jimena de

    2015-01-01

    El cáncer mamario humano (CMH) es un gran problema de salud puesto que es el cáncer que más frecuentemente se diagnostica en la mujer y es la segunda causa de muerte por cáncer. El cáncer mamario inflamatorio (CI) humano y canino (CIH y CIC, respectivamente) es un tipo de cáncer mamario especialmente agresivo de baja prevalencia. El CIC se ha propuesto como modelo para el estudio de la enfermedad humana. El CI se define como una entidad clínicopatológica caracterizada clínicamente por edema d...

  17. Mensuration of equivalent dose with personal dosemeters and instruments of radiological protection in the new operative quantities ICRU, for external fields of beta radiation. Part II. I study of the angular response of personal dosemeters TLD-100 in secondary patron fields of beta radiation ({sup 90}Sr / {sup 90}Y); Medicion de dosis equivalente con dosimetros personales e instrumentos de proteccion radiologica en las nuevas magnitudes operativas ICRU, para campos de radiacion beta externos. Parte II. Estudio de la respuesta angular de dosimetros personales TLD-100 en campos patrones secundarios de radiacion beta ({sup 90}Sr/{sup 90}Y)

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez R, J.T. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1994-01-15

    The objective of this work is to carry out one of the possible ones test type for personal dosemeters TLD, under the recomendations of the ICRU 39, ICRU 43 and the draft of the norm ISO 6980,(1992), with the purpose of verifying the capacity of these detectors to carry out the operative unit: H' (0.07;{alpha}). Since H' (O. 07;{alpha}) this defined one in an expanded field, one of these tests type consist on determining the angular response of these detectors. 20 personal dosemeters TLD-100 was used, (card marks: Harshaw, Model: G-1, with two glasses of TLD-100 absorbed in teflon; the portadosemeters has two windows, a free one and another with a filter of Pb of 171.0 mg cm{sup -2}); these dosemeters they were previously selected, [to see, {sup S}tudy of the Homogeneity of the response of Personal Dosemeters (Cards G-l, TLD-100) in Radiation of Countrysides of {sup 60}Co{sup ,} J.T. Alvarez R. Technician Report GSR/IT/0001/94].The irradiations to effectued in secondary countryside of radiation beta of {sup 90}Sr/{sup 90}Y. The study was undertaken by means of an experimental design of blocks random that contemplate the following variables: intensity of the radiation source, (1850 MBq and 74 MBq); position of irradiation, (four positions); incidence of angle of the radiation (0, 15, 30, 45, 60 and 75 grades) and the absorbed dose in air, (0.005, 0.010, 0.020, 0.050 and 0.100 Gy). Then null hypothesis it was to suppose that there was not difference among the stockings of each treatment, to used the statistical of Duncan to carry out tests of stockings at a level of significance of 5%.These tests of stockings throw the following results in those variables of the experimental design: The irradiations carried out so much with the source pattern secondary of {sup 90}Sr/{sup 90}Y of 1850 MBq and of 74 MBq, they are equivalent reason why they can be used indistinctly. The responses of each one of the glasses of the card are strongly anisotropic for each glass; four positions of irradiation is used: glass 1 (window of 171 mg cm{sup -2} of Pb) it presents six populations in the angular response being from maximum to minimum: 15, 30, 0, 45, 60 and 75 grades. Glass 2 (free window) it presents four populations in the angular response being from maximum to minimum: 15, 30; 45, 0; 60 and 75 grades. - The Doses absorbed in air imparted to the dosimetros were the following ones: T1 = 0.005, T2 0.010, T3 = 0.020, T4 0.050 and - T5 = 0.10 Gy, being the responses of both glasses significantly for each treatment: glass 1 present four populations in the response to those treatments being from maximum to minimum: T5; T4; T3 and T2=T1, (that is to say to low dose the glass cannot differentiate them). Glass 2 present the same four populations in the response to the treatments. Finally it was determined the angular response for each glass in accordance with the ICRU 43 and using the coefficients of conversion, (of transmission and angular) of the norm IS0 6980 (1992), considering as the operative unit to H{sup (0.07;angular)}. (Author)

  18. Measurement of dose equivalent with personal dosemeters and instrumentation of radiological protection in the new operative ICRU magnitudes, for external fields of beta radiation. Part III. Determination of the joint of factors of angular conversion for the secondary source pattern Nr. - 86 Of (1850) MBq; Medicion de dosis equivalente con dosimetros personales e instrumentacion de proteccion radiologica en las nuevas magnitudes operativas ICRU, para campos de radiacion Beta externos. Parte III. Determinacion del conjunto de factores de conversion angular para la fuente patron secundario Nr.- 86 de (1850) MBq

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez R, J.T. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1994-02-15

    It determined the assembly of factors of angular conversion T(0;{alpha}), for the source secondary pattern of {sup 90}Sr/{sup 90}Y (1850 MBq) at a distance detecting source of 30 cm, in the following angles: 0, 15, 30, 45, 60 and 75{sup 0}. Obtaining the values of: 1.01, 1.05, 1.13, 1.19 and 0.95, respectively. Their Global uncertainty is smaller to 1.5% for all the cases and its percentage differences with regard to the values reported by the Draft of the norm ISO 6980(1992) they are smaller to 3.0% for all the cases.The technique employee was that of the extrapolation Chamber and the treatment of the uncertainties is made of agreement with the recommendations of the BIPM. (Author)

  19. Mensuration of equivalent dose with personal dosemeters and instruments of radiological protection in the new operative magnitudes ICRU, for external fields of beta radiation. Part I. Study of the homogeneity of the response personal dosemeters leaves (cards G-1, TLD-100), in radiation fields of Co{sub 60}; Medicion de dosis equivalente con dosimetros personales e instrumentos de proteccion radiologica en las nuevas magnitudes operativas ICRU, para campos de radiacion beta externos. Parte I. Estudio de la homogeneidad de la respuesta dosimetros personales (tarjetas G-1, TLD-100), en campos de radiacion de Co{sub 60}

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez R, J.T. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1994-01-15

    A sample of 40 composed personal dosemeters by cards model: G-l, (each card is made up of two TLD-100 crystals encapsulated in teflon), Harshaw trademark; those personal dosemeters present a free window and another with a filter of A1 of 171.7 mg cm{sup -2} of mass thickness.The objective of the work is to select of this sample of 40 personal dosemeters a population with the same stocking and standard deviation. The technique used is that of comparison of stockings, (ANOVA; Variance Analysis, when samples of the same one were had size; and/or GLM, Widespread Lineal Models, when the samples were of different size), by means of the use of those Duncan statistics, SNK, Tukey, Gabriel; the results are validated proving the kindness of adjustment of the experimental data to a Normal distribution by means of the Shapiro-Wilks statistics.The experimental design used consists on a test of two vias: a via is the variable card with two levels, (crystal 1 and 2), the other via is the variable irradiation position with four levels, (LS=left superior, SR= right superior, LI= left Inferior, IR = right inferior). The irradiations carried out in blocks of four personal dosemeters in a gamma radiation beam range of Cobalt 60; carrying out three repetitions of the design. With object of proving the homogeneity of the filter of A1 in those personal dosemeters the experimental design was executed for those cards without personal dosemeters.They were also carried out tests of stockings to the readings of bottom and sensibility of the reader equipment, (Harshaw, model marks 2271), certain that doesn{sup t} exist differences for sequence of reading, but if in the stockings of the sensibility, (they were 4 different populations). The responses of the dosemeters were corrected subtracting him the reading correspondence of bottom and by sensibility of the reader equipment before subjecting them to the tests of stockings mentioned. Of the results of the tests of stockings for the cards with and without personal dosemeters, and for the bottom readings and sensibility of the reader equipment; and of the adjustment kindness to the normal for each game of data.The main conclusions that they were derived of this study they are: i.That the reader equipment presents differences statistically significant ({alpha}=5%) in their sensibilities; that which is necessary correct the readings of the dosemeter, making stand out the necessity of building the curves of operation of the equipment for the bottom and the sensibility. ii. The filter of A1 is not equivalent among the different personal dosemeters i i.For this sample of 40 cards with personal dosemeters to the one fewer exist: eleven populations different statistic significant, ({alpha}) to the response glass 1 five for the response of the glass 2, respectively. i v. That exist difference significant statistical, ({alpha} =5%) among the repetitions; what implies that it is necessary to control but strictly the experimental parameters to the one moment of carrying out the irradiations, (field size, correction for time of obturator of the source, distances source-detecting, etc), since the influence of the reader equipment it has already been considered. (Author)

  20. EVOLUCIÓN DE ARTRITIS PSORIÁSICA A PARTIR DE ESPONDILOARTROPATÍA INDIFERENCIADA NO ASOCIADA AL ANTIGENO HLA-B27: REPORTE DE UN CASO

    Directory of Open Access Journals (Sweden)

    Diego Bernardo Alarcón Granados

    2016-07-01

    Full Text Available Paciente masculino, 56 años de edad, cuya enfermedad actual inicia a los 21 años de edad, presentando lumbalgia inflamatoria. Concomitantemente monoartritis en rodilla izquierda, de aparición brusca, limitando su deambulación. Acude a especialista quien evalúa y diagnostica espondiloartropatía indiferenciada. Meses después, reaparecen episodios de lumbalgia inflamatoria por lo que procede a automedicarse. 27 años después presenta prurito en cuero cabelludo y dorso de antebrazo, así como placas eritematosas, descamativas, de tamaño variable, bordes delimitados. Acude a dermatólogo quien diagnostica psoriasis. Meses después, aparecen lesiones de psoriasis generalizadas, oligoartritis y lumbalgia mecánica. Es reevaluado diagnosticándose artritis psoriásica. Actualmente, presenta perdida de la lordosis lumbar, sindesmofitos y sacroileítis bilateral como hallazgos radiológicos. La población afectada por artritis psoriásica oscila entre 0,02 al 0,42%; en un 17% de los casos la artritis precede a la psoriasis. Los casos con espondilitis se asocian a sacroileítis y HLA-B27 positivo; sólo 10% de las espondilitis presenta HLA-B27 negativo. Palabras Clave: Artritis Psoriásica, espondiloartropatía, psoriasis.

  1. Diagnostico y tratamiento de la myasthenia gravis estudio de una poblacion hospitalaria

    Directory of Open Access Journals (Sweden)

    Roberto D. Rey

    1990-09-01

    Full Text Available Durante la observacion de 50 pacientes con Myasthenia gravis entre los anos 1974 y 1987 se encontro un predominio del sexo femenino en la proporcion de 2,5 a 1 y mayor frecuencia de presentacion en Ias 3ª y 5ª décadas de la vida. Luego de la evaluacion clínica, el diagnóstico fué confirmado mediante: (1 prueba dei edrofonio, (2 estímulo nervioso repetitivo, (3 dosaje de anticuerpos antirreceptor colinérgico y (4 transferencia pasiva del suero al raton con ulterior niedicion de la amplitud de mepp's. La positividad diagnostica vario entre el 90 y el 100%, segun el tipo de prueba empleada. El estúdio radiológico del timo fué hecho con neumomediastinografía. obteniendose excelente correlación con la descripcion histológica de la glândula, y con tomografia computada, que demostro menor eficiência diagnostica. El tratamiento fué implementado en base a anticolinesterásicos, timectomía y corticoterapia inmunosupresora, evidenciandose con esta última mejores resultados. Nueve pacientes desarrollaron peoria transitória del cuadro muscular al iniciarse el tratamiento esteroideo, 6 de ellos exhibieron posteriormente evolucion desfavorable. Esta observacion aparenta tener valor pronóstico en la evolucion de la MG.

  2. Uncertainty analysis in the determination of absorbed dose in water by Fricke chemical dosimetry; Analise das incertezas na determinacao da dose absorvida na agua por dosimetria quimica Fricke

    Energy Technology Data Exchange (ETDEWEB)

    Vasconcelos, Fabia; Aguirre, Eder Aguirre, E-mail: fabiavasco@hotmail.com, E-mail: ederuni01@gmail.com [Fundacao do Cancer, Rio de Janeiro, RJ (Brazil); Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil)

    2016-07-01

    This work studies the calculations of uncertainties and the level of confidence that involves the process for obtaining the dose absorbed in water using the method of Fricke dosimetry, developed at Laboratorio de Ciencias Radiologicas (LCR). Measurements of absorbance of samples Fricke, irradiated and non-irradiated is going to use in order to calculate the respective sensitivity coefficients, along with the expressions of the calculation of Fricke dose and the absorbed dose in water. Those expressions are used for calculating the others sensitivity coefficients from the input variable. It is going to use the combined uncertainty and the expanded uncertainty, with a level of confidence of 95.45%, in order to report the uncertainties of the measurement. (author)

  3. Advance of the National Program of Radiological Protection and Safety for medical diagnostic with X-rays

    International Nuclear Information System (INIS)

    Verdejo S, M.

    1999-01-01

    The National Program of Radiological Protection and Safety for medical diagnostic with X-ray (Programa Nacional de Proteccion y Seguridad Radiologica para diagnostico medico con rayos X) was initiated in the General Direction of Environmental Health (Direccion General de Salud Ambiental) in 1995. Task coordinated with different dependences of the Public Sector in collaboration between the Secretary of Health (Secretaria de Salud), the National Commission of Nuclear Safety and Safeguards (Comision Nacional de Seguridad Nuclear y Salvaguardias) and, the National Institute of Nuclear Research (Instituto Nacional de Investigaciones Nucleares). The surveillance to the fulfilment of the standardization in matter of Radiological Protection and Safety in the medical diagnostic with X-rays has been obtained for an important advance in the Public sector and it has been arousing interest in the Private sector. (Author)

  4. Studio di prevalenza delle polmoniti in un'Azienda opsedaliera di Bologna

    Directory of Open Access Journals (Sweden)

    E. Leoni

    2003-05-01

    Full Text Available

    Obiettivi: nell’ambito di un progetto di sorveglianza attiva dei casi di polmonite da legionella, è stata studiata la prevalenza di tutti i casi di polmonite ricoverati in un ospedale di Bologna, allo scopo di definirne la distribuzione per origine (comunitaria o nosocomiale, eziologia, caratteristiche individuali e di confrontarle con le polmoniti da legionella.

    Metodi: per ogni caso con diagnosi clinica e/o radiologica di polmonite è stato compilato un questionario, raccogliendo le informazioni dalle cartelle cliniche. Tutti i casi di polmonite non specificata sono stati inoltre sottoposti al test per la ricerca dell’antigene di legionella nelle urine.

  5. Uncertainty analysis in the determination of absorbed dose in water by Fricke chemical dosimetry

    International Nuclear Information System (INIS)

    Vasconcelos, Fabia; Aguirre, Eder Aguirre

    2016-01-01

    This work studies the calculations of uncertainties and the level of confidence that involves the process for obtaining the dose absorbed in water using the method of Fricke dosimetry, developed at Laboratorio de Ciencias Radiologicas (LCR). Measurements of absorbance of samples Fricke, irradiated and non-irradiated is going to use in order to calculate the respective sensitivity coefficients, along with the expressions of the calculation of Fricke dose and the absorbed dose in water. Those expressions are used for calculating the others sensitivity coefficients from the input variable. It is going to use the combined uncertainty and the expanded uncertainty, with a level of confidence of 95.45%, in order to report the uncertainties of the measurement. (author)

  6. Evaluation of external exposure in a radioactive waste deposit; Avaliacao da exposicao externa em um deposito de rejeitos radioativos

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Sergio Quinet de; Pereira, Wagner de Souza; Py Junior, Delcy de Azevedo; Dores, Luis Augusto de Carvalho Bresser; Dantas, Marcelino Vicente de Almeida; Silva, Ana Claudia Antunes; Garcia Filho, Oswaldo, E-mail: wspereira@inb.gov.b, E-mail: sergioquinet@inb.gov.b, E-mail: delcy@inb.gov.b, E-mail: luisdores@inb.gov.b, E-mail: marcelino@inb.go.b, E-mail: anasilva@inb.gov.b, E-mail: ogarcia@inb.gov.b [Industrias Nucleares do Brasil (UTM/INB), Pocos de Caldas, MG (Brazil). Unidade de Tratamento de Minerio

    2011-10-26

    The ore treatment unit (OTU) of Industrias Nucleares do Brasil (INB), located at Caldas municipality - Minas Gerais, Brazil, posses a radioactive deposit, coming mainly from the chemical processing of monazite sands for obtention of 'rare earths'. The main components of these waste are the 'torta II (thorium rich residues) and the 'mesothorium' ({sup 228}Ra rich residues) - conditioned in steel drums (200 liters), plastic pumps (100 liters) or underground silos. These loaders are deposited in waste loading warehouses existent at the OTU and periodic evaluations of the external exposure rates (mR/h) are part of the 'Programa de Monitoracao Radiologica Ocupacional' of the unit. This paper presents a brief history of origins of this waste deposit and the material found there, and also the result of a routine monitoring of the external exposure rates

  7. Simulation of a room for neutron instrument calibration at LCR/UERJ

    International Nuclear Information System (INIS)

    Medeiros, M.P.C.; Estrada, J.J.S.; Gomes, R.G.; Santos, R.F.G.; Leite, S.P.; Alves, C.F.E.; Rebello, W.F.; Almeida, C.E. de

    2013-01-01

    In this work the MCNPX code was used to design a calibrating room for neutron detectors to be implemented in the Laboratorio de Ciencias Radiologicas of UERJ. The calibration room containing a neutron irradiator with a 241 Am-Be source, a linear positioning system, radiation detectors and a shadow cone was modeled. The ambient dose equivalent rate, ııı ∗ ı10ı, in adjacent to the calibration room areas, as well as neutron scattering caused by the room itself were calculated. Using an occupancy factor of 1/16 for all adjacent areas, 3.8 cm of 5% borated polyethylene or 5.5 cm of concrete for shielding is enough to satisfy radiation safety requirements. (author)

  8. Constitutional osteochondrodysplasias identifiable a birth. A short review on the state of the art in radiodiagnostic in the late 20. century; Le osteocondrodisplasie costituzionali riconoscibili alla nascita. Una breve rassegna sullo studio dell'arte radiodiagnostica sul finire del 20. secolo

    Energy Technology Data Exchange (ETDEWEB)

    Gugliantini, P.; Maragliano, G.; Piscione, M.; Licata, G. [Azienza Ospedaliera San Giovanni - Addolorata, Rome (Italy)

    1999-03-01

    The value of a systematic radiologic analysis in constitutional osteochondrodysplasias remains underestimated by both neonatologists and radiologists. The authors report the clinical experience of the Department of Neonatology and Neonatal Intensive Cure Unit of St. John Hospital in Rome with constitutional osteochondrodysplasias identifiable at birth. The authors justify the relatively high incidence of constitutional osteochondrodysplasias in this study (66% versus an average incidence of 0,076% reported in the world population) on the basis of: a) an increasing number of high-risk newborns in the intensive cure; b) an improvement in our clinical and radiologic diagnostic skill. They conclude that the state of the art of diagnostic of constitutional osteochondrodysplasiasin still based on the first plain X-ray examination performed at birth because of cardiorespiratory and/or abdominal diseases in the newborn. [Italian] L'importanza dell'analisi radiologica sistematica delle osteocondrodisplasie costituzionali e' tutt'ora sottostimata sia dai neonatologi che dai radiologi. Pertanto riferiamo l'esperianza clinico-radiologica di osteocondrodisplasie costituzionali identificabili alla nascita nel Dipartimento di Neonatologia e Terapia Intensiva Neonatale dell'Ospedale San Giovanni di Roma. L'articolo conclude giustificando la relativamente alta incidenza di ostecondrodisplasie costituzionali della casistica in esame (0,66% contro l'incidenza media dei 0,076% riferita alla popolazione mondiale) sulla base di: a) crescente numero di neonati con alto rischio ricoverati nella unita' di terapia intensiva; b) miglioramento delle capacita' diagnostiche, sia cliniche che radiologiche.

  9. New RIA kit for determination of progesterone in cow milk

    International Nuclear Information System (INIS)

    Byszewska-Szpocinska, E.; Markiewicz, A.

    2006-01-01

    The determination of progesterone concentration in whole and fat-free milk 19-24 days after conception enables to distinguish fertile and non-fertile insemination, which is important in cattle breeding. The aim of this work was to develop a simple and quick radioimmunoassay test for the determination of progesterone in cow milk. Two types of solid-phase tubes coated with specific polyclonal anti-progesterone antibody from ORION Diagnostica and BIOSOURCE International, two different progesterone derivatives viz. progesterone-3- carboxymethyl oxime (CMO) and progesterone-11α-hemisuccinate (HS) conjugated to 125 I-histamine and the HPLC system with Lichrospher RP-18 column along with 65% acetonitrile/water as eluent to purify the tracers were used to carry out this work. Progesterone-3CMO- 125 I-histamine had a retention time of 13.2 min and progesterone-11α-hemisuccinate- 125 I-histamine had a retention time of 7.8 min. Two kinds of kits (kit I and kit II) were prepared, first with progesterone-3CMO- 125 I-histamine as the tracer and coated tubes from Progesterone Veterinary RIA kit of ORION Diagnostica and the second with progesterone-11αHS- 125 I-histamine as the tracer and coated tubes from Progesterone Veterinary RIA kit from BIOSOURCE International. Progesterone from Sigma and selected fat-free cow's milk without progesterone as zero progesterone milk matrix were used for standard preparation. The optimal assay procedure was as follows: 50μL standards, controls and fat-free milk samples were pipetted into coated tubes followed by addition of 500μL of diluted tracer. The tubes were incubated for 2h in case of kit I and 3h for kit II at RT. After the incubation, the tubes were decanted and counted. The assay range was 0 to 270 nmol/L for kit I and 0 to 300 nmol/L for kit II. The sensitivity of the kit with ORION coated tubes was better (0.8 nmol/L) than that of BIOSOURCE tubes which was 1.5 nmol/L. Validation of these assays in terms of specificity, accuracy

  10. B-mode for thyroid nodule characterization at 7.5 MHz versus 13 MHz; Attualita' dell'ecografia nel modo B nella caratterizzazione delle malattie nodulari tiroidee: studio ecografiaco di confronto con sonde da 7.5 e da 13 MHz

    Energy Technology Data Exchange (ETDEWEB)

    Amodio, F.; Carbone, M.; Rossi, E.; Brunese, L.; Vallone, G. [Neaples Univ., Neaples (Italy). Dipt. di Scienze Biomorfologiche, Ist. di Scienze Radiologiche; Pisano, G.; Iorio, S. [Neaples Univ., Neaples (Italy). Dipt. di Scienze Biomorfologiche, Sez. di Anatomia Patologica e Citopatologica; Benincasa, G. [Neaples Univ., Neaples (Italy). Dipt. di Scienze Biomorfologiche, Ist. di Endocrinologia, Medicina Interna e Malattie della Nutrizione

    1999-09-01

    The paper investigates B-mode ultrasonography capabilities in diagnosis and characterizing thyroid nodules and compared the personal experience findings with those of few analytical studies in the literature. It is also compared the diagnostic accuracy of conventional 7.5 MHz versus more recent 13 MHz transducers. [Italian] Lo studio presenta i dati sull'accuratezza diagnostica dell'ecografia nel modo B con trasduttore da 7.5 MHz con quella di un trasduttore di piu' recente commercializzazione da 13 MHz. E' una tappa fondamentale nell'iter diagnostico del nodulo tiroideo, se integrata con lo studio qualitativo (color e power Doppler) e semiquantitativo (Doppler pulsato) della vascolarizzazione nodulare.

  11. El cas estrany d'una nena amb tuberculosi renal

    OpenAIRE

    Martínez Roig, Antonio

    2009-01-01

    La tuberculosi és una afecció més pròpia de localitzar-se als pulmons, a través del contagi per via aèria, que no pas fora d'ells. La que es produeix als ronyons seria només un 3% i la infecció estaria vinculada a la disseminació per via sanguínia i limfàtica de la tuberculosi pulmonar. Si considerem que la tuberculosi es diagnostica principalment a l'adolescència, trobarem força peculiar el cas d'una nena que va desenvolupar una tuberculosi renal amb tretze mesos de vida. La nena patia una d...

  12. Estado Nueva Esparta

    Directory of Open Access Journals (Sweden)

    Cecilia Bracho Toro

    2007-01-01

    Full Text Available Se diagnostica la situación actual de los conocimientos tradicionales de la palma datilera, sus derivados y su uso como atractivo turístico cultural del Municipio Díaz, Estado Nueva Esparta. Es un estudio descriptivo y de campo realizado específicamente en la comunidad de Fuentidueño, basado en entrevistas semi-estructuradas. Se concluye que la comunidad posee un cúmulo de conocimientos tradicionales, basados en saberes. Existe poca participación de las nuevas generaciones, en aprender los conocimientos tradicionales respecto al datilero y sus derivados. Se formulan recomendaciones: legales, educativos y comunitarias para la incorporación de los conocimientos tradicionales del datilero y sus derivados dentro de los atractivos turísticos culturales del Municipio.

  13. Diagnóstico del sistema profesional de carrera y certificación de competencias gerenciales de los servidores públicos en México

    Directory of Open Access Journals (Sweden)

    Luis Arturo Rivas Tovar

    2013-10-01

    Full Text Available Esta investigación realiza una análisis del concepto de servidor público, describe y diferencia los servicios civiles y los profesionales de carrera y realiza un diagnóstico documental del estado del sistema profesional de carrera en México. Asimismo, diagnostica la operación del servicio profesional de carrera en la Consejería Jurídica de la Presidencia de México, a partir de un análisis documental y entrevistas focales realizadas a los responsables de su Administración, así como a candidatos aspirantes. A partir de lo anterior, se detectó una falta de congruencia de los instrumentos de evaluación, por lo que se propone un nuevo modelo de competencias para los servidores públicos en México, para evaluarlos y garantizar la congruencia con los principios rectores.

  14. gerenciales de los servidores públicos en México

    Directory of Open Access Journals (Sweden)

    Luis Arturo Rivas Tovar

    2013-01-01

    Full Text Available Esta investigación realiza una análisis del concepto de servidor público, describe y diferencia los servicios civiles y los profesionales de carrera y realiza un diagnóstico documental del estado del sistema profesional de carrera en México. Asimismo, diagnostica la operación del servicio profesional de carrera en la Consejería Jurídica de la Presidencia de México, a partir de un análisis documental y entrevistas focales realizadas a los responsables de su Administración, así como a candidatos aspirantes. A partir de lo anterior, se detectó una falta de congruencia de los instrumentos de evaluación, por lo que se propone un nuevo modelo de competencias para los servidores públicos en México, para evaluarlos y garantizar la congruencia con los principios rectores.

  15. Comparison of three competitive immunoassays for measurement of TSH receptor antibodies in patients with Graves' disease

    DEFF Research Database (Denmark)

    Doroudian, Sara; Pedersen, Inge Bülow; Knudsen, Cindy Soendersoe

    2017-01-01

    with three different assays [H-TRAb (BRAHMS Diagnostica), M22-Man (RSR Limited) and M22-Aut (Roche Diagnostics)] in 387 participants who were recruited from two Danish population-based studies and diagnosed with GD (n = 101), multinodular toxic goitre (n = 88), primary autoimmune hypothyroidism (n = 100...... revealed a high sensitivity (H-TRAb: 95%, M22-Man: 93%, M22-Aut: 95%) and specificity (H-TRAb: 99%, M22-Man: 99%, M22-Aut: 97%) for the diagnosis of GD with all assays. Comparison of TRAb levels showed inter-assay variability and values were considerably lower with the M22-Man assay. All TRAb assays showed...

  16. Valor diagnóstico del pepsinógeno i/ii como biomarcador de lesiones pre-malignas y malignas gástricas: revisión sistemática

    OpenAIRE

    Hidalgo Mora, Viviana Marcela; Whang, Joon Kyung

    2016-01-01

    Antecedentes: El cáncer gástrico se diagnostica tardíamente. Sólo en países como Corea y Japón existen políticas de tamizaje, que se justificarían en cualquier país con alta prevalencia de cáncer gástrico como Colombia o Chile. El análisis del pepsinógeno sérico se ha propuesto para el diagnóstico de lesiones premalignas y malignas gástricas, por lo cual se pretende revisar sistemáticamente en la literatura el valor diagnóstico del cociente pepsinógeno I/II como marcador de lesiones premalign...

  17. Hernia diafragmática congénita atascada

    Directory of Open Access Journals (Sweden)

    Miurkis Endis Miranda

    Full Text Available La hernia diafragmática congénita constituye uno de los retos pendientes dentro de las enfermedades quirúrgicas del recién nacido. Se presenta un caso muy inusual, en el cual se diagnosticó una hernia diafragmática derecha atascada, con compromiso de gran parte del intestino. Se describen los medios diagnósticos utilizados, el procedimiento quirúrgico realizado y las complicaciones presentadas. La hernia diafragmática congénita atascada es una complicación potencialmente letal, por el amplio compromiso vascular que produce en los órganos abdominales y que conlleva a la necrosis de estos si no se diagnostica precozmente. Por ello, debe ser considerada en el diagnóstico diferencial de la insuficiencia respiratoria en los recién nacidos y lactantes pequeños.

  18. Colorectal cancer: before and after PET-CT; Cancer colorrectal: antes y despues de PET-TC

    Energy Technology Data Exchange (ETDEWEB)

    San Roman, Jose [Hospital Italiano, Buenos Aires (Argentina). Servicio de Diagnostico por Imagenes

    2008-07-01

    The author makes reference to the fundamental and growing role of images in the detection, localization, staging and control in colorectal cancer therapy. He points out the main reasons why the combined method PET-CT has meant to a great progress in diagnostic imaging and compares its diagnostic capacity and cost-benefit with other methods. Also, he makes a brief review of some technical aspects. [Spanish] El autor senala el rol central y creciente de las imagenes para la deteccion, localizacion, estadificacion y control del tratamiento del CCR. Menciona las razones principales por las que el metodo combinado PET-TC ha significado un progreso mayor para el diagnostico por imagenes y compara su capacidad diagnostica y costo-beneficio con los metodos establecidos. Tambien hace un repaso breve de algunos aspectos tecnicos.

  19. Cáncer injertado en tejido mamario aberrante

    Directory of Open Access Journals (Sweden)

    Lidia Torres Ajá

    2012-02-01

    Full Text Available Entre las anomalías del desarrollo embrionario de las mamas se encuentran las mamas supernumerarias y el tejido ectópico aberrante. Ambas pueden ser asiento de tumores malignos de la mama, en mayor número  el tejido aberrante. Se presenta el caso de una paciente femenina de 73 años, que refiere tiene desde siempre una “mamita pequeña en el surco submamario izquierdo la cual nunca le ocasiono molestias hasta hace 2 meses en que aumentó de volumen y se le retrajo la piel". Mediante biopsia escisional se le diagnostica un carcinoma ductal infiltrante, siendo así  el primer caso de carcinoma injertado en tejido mamario aberrante diagnosticado en nuestra provincia.

  20. El cancer de piel y el sol: la protección como alternativa

    OpenAIRE

    Ochoa, María Teresa; Fundación Valle de Lili; Rueda Plata, Ricardo A.

    1996-01-01

    ¿Qué es la radiación ultravioleta?/¿Qué factores afectan la cantidad de radiación UV que alcanza la tierra?/¿Qué efectos produce el sol sobre la piel? Quemadura solar aguda/Bronceamiento/Envejecimiento/Cáncer/¿Existen varios tipos de cáncer de piel?/¿Cómo se sospecha el melanoma de piel?/¿Cómo se diagnostica el cáncer de piel?/¿Cómo trata el cáncer de piel?/¿Cómo se puede detectar a tiempo?/¿Cómo se puede proteger del sol y no correr riesgos?/¿Qué es un protector solar?/¿Cómo elegir un buen p...

  1. Neuroglial heterotopia of the scalp.

    Science.gov (United States)

    Attafi, S; Lahmar-Boufaroua, A; Rekik, W; Fraoua, F; Fadhel, C B; Bouraoui, S; Mzabi-Rgaya, S

    2016-03-01

    Heterotopic glial nodules of the scalp are non hereditary congenital malformations composed of mature brain tissue isolated from the cranial cavity. The majority of these lesions are found in the nasal region and occur rarely on the scalp. They are frequently diagnosed in newborn infants. However, they may rarely be found in adults. The pathogenesis of these lesions remains unknown. We describe the case of a temporal scalp nodule in a 50 year-old man. At the time of the excision, the mass was not associated with intracranial connection. Histological examination revealed neural tissue staining with S100-protein and the glial fibrillary acidic protein (GFAP). © Copyright Società Italiana di Anatomia Patologica e Citopatologia Diagnostica, Divisione Italiana della International Academy of Pathology.

  2. Cromomicose cerebral: registro de um caso

    Directory of Open Access Journals (Sweden)

    Luciano de Souza Queiroz

    1979-09-01

    Full Text Available As lesões cerebrais por fungos pigmentados são excepcionais. Os autores apresentam um caso de cromomicose do sistema nervoso central, em paciente de 59 anos. O quadro clínico iniciou-se por cefaléias e hemiparesia esquerda, seguida por meningite e síndrome de hipertensão intracraniana, totalizando uma evolução de nove meses. A neerópsia revelou abcesso encapsulado nos núcleos basais à direita e leptomeningite crônica de predomínio na base do encéfalo. Em ambas as localizações foram demonstrados numerosos fungos de cor castanha, em forma arredondada ou em hifas septadas. Discutem-se as dificuldades diagnosticas desta neuromicose.

  3. Importancia de la pesquisa del cáncer de mama

    OpenAIRE

    Dinorah García Roque; Yaiset Borges de la Oliva

    2017-01-01

    El cáncer, es uno de los mayores problemas de Salud Pública en el mundo, siendo en términos epidemiológicos, la neoplasia maligna que más se diagnostica y la mayor causa de muerte en el sexo femenino. El cáncer de mama es el tumor más frecuente en mujeres, con una incidencia anual de casi 143 000 nuevos casos en los EEUU. Estas cifras han ido incrementándose progresivamente durante los últimos 50 años. En las Américas, el cáncer de mama es el más común y la segunda causa principal de muerte p...

  4. Hipertiroidismo apático en paciente de mediana edad. Reporte de caso y revisión de la literatura

    OpenAIRE

    Briseño López, Pedro; Ceballos Villalva, Jesús Carlos; Rodríguez Cázares, Zuleika Miroslawa; Téllez Manríquez, Luis Adrián; Mendoza Zubieta, Victoria; MacGregor Gooch, Julián Malcolm

    2016-01-01

    Resumen El hipertiroidismo es una patología frecuente que suele ser fácilmente reconocida por sus síntomas y signos. El hipertiroidismo apático es una forma de presentación de hipertiroidismo sin signos y síntomas característicos. Los síntomas cardinales del hipertiroidismo apático son la depresión y apatía; por ello, la ausencia de síntomas y signos clásicos retrasa el diagnóstico y el tratamiento, pues a menudo se diagnostica erróneamente como un trastorno psiquiátrico primario. Es más frec...

  5. Nuevas perspectivas para la prevención del cáncer de cuello uterino basadas en el virus del papiloma humano

    OpenAIRE

    Nubia Muñoz

    2006-01-01

    El cáncer de cuello uterino es el segundo más frecuente en mujeres y una de las causas más importantes de años perdidos de vida potencial, toda vez que afecta una gran proporción de mujeres jóvenes y de edad media. Anualmente, en el mundo se diagnostica medio millón de casos y mueren 274.000 mujeres por esta causa. Es un problema importante de salud pública en los países en desarrollo, en donde ocurre el 83% de estos casos y estas muertes. En Colombia en el 2002 se diagnosticaron 6.815 casos ...

  6. A synopsis of the South American Hydrovatus (Coleoptera: Dytiscidae: Hydroporinae, with notes on habitat and distribution, and a key to species

    Directory of Open Access Journals (Sweden)

    Edgardo R. TRÉMOUILLES

    2005-01-01

    Full Text Available Se estudiaron los representantes sudamericanos del género Hydrovatus Motschulsky. Se diagnostica cada una de las tres especies conocidas, enfatizando el reconocimiento de caracteres valiosos para su identificación; las principales diferencias se resumen en una clave. Para identificar los ejemplares sudamericanos de H. caraibus Sharp, se los comparó con especímenes de AméricaCentral, incluyendo material tipo. En base al material examinado, H. caraibus se encuentra ampliamente distribuida en America Central y del Sur, con representantes de diferentes áreas separados por diferencias menores. Lasdistribuciones geográficas de las tres especies se amplían considerablemente: H. crassulus Sharp y H. turbinatus Zimmermann se citan por primera vez de Paraguay, y H. caraibus se cita por primera vez de Argentina y Nicaragua. Se presenta información bionómica de las especies.

  7. Cinema utópico: a construção de um novo homem e um novo mundo

    OpenAIRE

    Erika Savernini Lopes

    2011-01-01

    O cinema, desde seus primórdios, prefigurou o espaço cibernético como um novo espaço imaterial construído coletivamente. A concepção desse outro lugar não físico para o qual o homem poderia migrar estabelece para o cinema e para o ciberespaço uma relação direta com as utopias. Na acepção do romance filosófico de Thomas More, a Utopia define-se como um outro espaço não-existente, irrealizável e ideal que diagnostica o atual. O cinema carregaria caracteres fundamentais da Utopia tanto no que se...

  8. Fibrosis endomiocárdica

    Directory of Open Access Journals (Sweden)

    María Juliana Rodríguez-González

    2017-07-01

    Una de las formas más comunes de miocardiopatía restrictiva es la fibrosis endomiocárdica la cual es endémica en algunas zonas tropicales especialmente en África (países de bajos ingresos, pero en nuestro medio hay pocos reportes de aparición. Su etiología es desconocida, aunque existen diversos mecanismos que han sido involucrados en su fisiopatología. Su diagnóstico se basa en estudios imagenológicos (ecocardiograma transtorácico y resonancia magnética nuclear cardíaca. El pronóstico es muy pobre, y usualmente se diagnostica en etapas muy avanzadas de la enfermedad. Se describe el caso de una paciente femenina, adulta media, que debutó con cardiopatía restrictiva, cuyo diagnóstico final fue fibrosis endomiocárdica.

  9. ¿ Es posible la Intervención Dietética dentro del tratamiento del Síndrome de Ovario Poliquístico?

    OpenAIRE

    Vicente Ferreras, Sonia

    2014-01-01

    En este trabajo se ha intentado hacer una puesta al día del Síndrome de Ovario Poliquístico para entender, posteriormente, el abordaje dietético-nutricional que se ha estudiado en las mujeres con esta patología. Para ello, en primer lugar se explica lo que es el Síndrome de Ovario Poliquístico y las posibles causas que podrían producir esta patología. A continuación, se explicará cómo se diagnostica este trastorno por los diferentes criterios que existen. A continuación, se comentará tanto...

  10. Síndrome seco - Síndrome de Sjögren

    OpenAIRE

    Cañas Dávila, Carlos Alberto

    2002-01-01

    ¿Qué es el "síndrome seco"?/ ¿Qué es el síndrome Sjögren?/ ¿Qué es un síndrome de Sjögren primario y qué es un síndrome de Sjögren secundario?/ ¿Cuáles son las causas del síndrome de Sjögren?/ ¿Qué otras manifestaciones distintas a los síntomas secos puede ocasionar el síndrome de Sjögren?/ ¿Cómo se diagnostica un síndrome de Sjögren?/ ¿Cuál es el tratamiento del síndrome de Sjögren?/ ¿Qué tan frecuente es el síndrome de Sjögren?

  11. Measurement of amino terminal propeptide of type III procollagen (PIIINP) employing the ADVIA Centaur platform. Validation, reference interval and comparison to UniQ RIA

    DEFF Research Database (Denmark)

    Knudsen, Cindy Soendersoe; Heickendorff, Lene; Nexo, Ebba

    2014-01-01

    Background: Recently, measurement of amino terminal propeptide of type III procollagen (PIIINP) was introduced as a part of the hepatic cirrhotic marker enhanced liver fibrosis™ test on the automated ADVIA Centaur® immunoassay platform (Siemens Healthcare Diagnostics Inc., Tarrytown, NY, USA...... UniQ PIIINP RIA assay (Orion Diagnostica, Espoo, Finland) using 55 patient samples (range=3.7-43.3 µg/L). Furthermore, we established a reference interval based on samples from 287 blood donors. Results: In the concentration range 2.5-11.9 µg/L, the total imprecision was below 8%. Comparison...... PIIINP assay is suitable for routine use with our newly defined reference interval. The results obtained by Centaur correlates well with those obtained by the previously employed RIA, though the absolute values are higher....

  12. Measurement of thyrotropin receptor antibodies (TRAK) with a second generation assay in patients with Graves' disease; Die Bestimmung von Thyreotropin-Rezeptor-Antikoerpern (TRAK) mit einem Assay der zweiten Generation bei Patienten mit Morbus Basedow

    Energy Technology Data Exchange (ETDEWEB)

    Zoephel, K.; Wunderlich, G.; Franke, W.G. [Klinik und Poliklinik fuer Nuklearmedizin, Technische Univ. Dresden (Germany); Koch, R. [Inst. fuer Medizinische Informatik und Biometrie, Technische Univ. Dresden (Germany)

    2000-06-01

    Aim: The detection of TSH-receptor-antibodies (TRAb) in patients (pts) with Graves' disease (GD) is routinely used in nuclear medicine laboratories. It is performed by commercial, porcine radioreceptorassays (RRA) measuring TSH binding inhibitory activity. A second generation assay using the human, recombinant TSH-receptor was developed during the last years. The manufacturer composed this new assay as a coated tube RRA (CT RRA) and claimed a higher sensitivity for GD. Methods: TRAb was measured in 207 pts with various thyroid disorders and 205 healthy controls using the new coated tube RRA (Fa. B.R.A.H.M.S. Diagnostica GmbH, Berlin, Germany) as well as a conventional RRA (Fa. Medipan Diagnostica GmbH, Selchow, Germany): 60 pts suffering from GD showing a relapse after anti-thyroid drug treatment and before radioiodine therapy, 109 pts with disseminated autonomia (DA) and 38 pts suffering from Hashimoto's thyroiditis. A ROC-analysis was performed to find the optimal decision threshold level for positivity. Results: We found 42/60 TRAb-positive pts with GD in the established RRA (threshold 6 U/L) and 52/60 in the CT RRA, respectively. The sensitivity increased from 70% (RRA) to 86,7% (CT RRA). The CT RRA found 2 false positives (one Hashimoto's and one healthy control) and the RRA detected 3 Hashimoto's and 2 healthy controls as false positive. Conclusion: The increased sensitivity of CT RRA for GD provides an advantage compared to conventional RRA, especially in GD-patients relapsing afte antithyroid drug treatment. Functional sensitivity and Interassayvariation of CT RRA are very precisely compared to conventional RRA. Handling of the new assay is also improved. (orig.) [German] Ziel: Die Bestimmung der TSH-Rezeptorantikoerper (TRAK) bei Patienten mit Morbus Basedow ist fester Bestandteil der nuklearmedizinischen In-vitro-Diagnostik. Seit kurzem ist die Bestimmung mit einem TRAK-Assay moeglich, bei dem im Gegensatz zu den herkoemmlichen

  13. Aneurisma congénito de la orejuela izquierda. Caso clínico

    OpenAIRE

    Johanna T. Otero; Eduardo A. Villanueva; Pedro Becker; Rodrigo Parra; Pamela Zelada

    2008-01-01

    El aneurisma auricular congénito es una enfermedad muy rara y su localización más frecuente es la orejuela de la aurícula izquierda con 51 casos comunicados en la literatura. La mayoría son asintomáticos, por lo que su diagnóstico es por hallazgo en técnicas de imagen. Presentamos el caso de un lactante de 4 meses, de género masculino, portador de un síndrome de Treacher-Collins o disostosis mandibulofacial y síndrome bronquial obstructivo cuyo estudio de técnicas de imagen diagnostica un ane...

  14. Enzyme-linked immunoassay for plasma-free metanephrines in the biochemical diagnosis of phaeochromocytoma in adults is not ideal.

    LENUS (Irish Health Repository)

    2012-02-01

    Abstract Background: The aim of the study was to define the analytical and diagnostic performance of the Labor Diagnostica Nord (LDN) 2-Met plasma ELISA assay for fractionated plasma metanephrines in the biochemical diagnosis of phaeochromocytoma. Methods: The stated manufacturer\\'s performance characteristics were assessed. Clinical utility was evaluated against liquid chromatography tandem mass spectrometry (LC-MS\\/MS) using bias, sensitivity and specificity outcomes. Samples (n=73) were collected from patients in whom phaeochromocytoma had been excluded (n=60) based on low probability of disease, repeat negative testing for urinary fractionated catecholamines and metanephrines, lack of radiological and histological evidence of a tumour and from a group (n=13) in whom the tumour had been histologically confirmed. Blood collected into k(2)EDTA tubes was processed within 30 min. Separated plasma was aliquoted (x2) and frozen at -40 degrees C prior to analyses. One aliquot was analysed for plasma metanephrines using the LDN 2-Met ELISA and the other by LC-MS\\/MS. Results: The mean bias of -32% for normetanephrine (ELISA) when compared to the reference method (LC-MS\\/MS) makes under-diagnosis of phaeochromocytoma likely. The sensitivity of the assay (100%) was equal to the reference method, but specificity (88.3%) lower than the reference method (95%), making it less than optimum for the biochemical diagnosis of phaeochromocytoma. Conclusions: Plasma-free metanephrines as measured by Labor Diagnostica Nord (LDN) 2-Met ELISA do not display test characteristics that would support their introduction or continuation as part of a screening protocol for the biochemical detection of phaeochromocytoma unless the calibration problem identified is corrected and other more accurate and analytically specific methods remain unavailable.

  15. Etmoiditis complicada con celulitis orbitaria en un lactante

    Directory of Open Access Journals (Sweden)

    Odette Pantoja Pereda

    Full Text Available Se define la etmoiditis como la inflamación e infección de la mucosa de las celdas etmoidales. Se diagnostica clínicamente con la presencia de edema en el ángulo medial del ojo, que se extiende a las estructuras adyacentes. Estudios imagenológicos son necesarios para verificar la presencia de complicaciones, entre las que se citan el absceso orbitario, subperióstico, epidural, subdural, cerebral, tromboflebitis del seno cavernoso, meningoencefalitis y la muerte del paciente. Streptococcus pneumoniae, Staphylococcus aureus y Haemophilus influenzae son microorganismos frecuentemente responsables de este cuadro. Las complicaciones orbitarias en las etmoiditis, necesitan el diagnóstico y tratamiento precoz para evitar secuelas irreversibles. Se presenta el caso de un lactante masculino, de 1 mes y 26 días de nacido, que ingresa con fiebre, rinorrea serosa y rechazo al alimento. Evolutivamente se constata marcada obstrucción nasal, edema periorbitario izquierdo, rubor, calor, protrusión del globo ocular e irritabilidad, y se diagnostica etmoiditis complicada con celulitis orbitaria. Se realiza tomografía axial computarizada que informa seno etmoidal izquierdo ocupado por contenido de densidad líquida con celularidad (15-25 UH, engrosamiento de partes blandas de la pared interna de la órbita que abomba, comprime y desplaza la musculatura orbitaria, y se extiende al párpado y al ala izquierda de la nariz desviando tabique blando; así como ligera proptosis, y disminución de la densidad ósea de la pared interna de la cavidad orbitaria. Se toma muestra para cultivo y se aísla Staphylococcus aureus meticillin resistente. Se comentan los elementos diagnósticos y su tratamiento, con el objetivo de llamar la atención de los pediatras para lograr el diagnóstico y tratamiento oportuno.

  16. CF findings of bowel infarction in 56 surgical patients, 5 of whom with reversible ischemia; Aspetti alla tomografia computerizzata dell'infarto intestinale. 56 pazienti sottoposti a interventi chirurgico di cui 5 con ischemia mesenterica reversibile.

    Energy Technology Data Exchange (ETDEWEB)

    Salzano, A.; De Rosa, A.; Carbone, M.; Ginolfi, F.; Rossi, E.; Amodio, F. [Naples Univ. Federico 2. (Italy). Ist. di Scienze Radiologiche; Muto, M.; Tuccillo, M. [Azienda Sanitaria di Rilievo Nazionale A. Cardarelli, Naples (Italy). Servizio di Neuroradiologia

    1999-04-01

    Bowel infarction is a rare and typical condition of the elderly; despite improvements in diagnostic imaging and vascular surgery, bowel infarction remains a major cause of acute abdomen, with mortality rates ranging 70-80%. Diagnosis on often late because clinical signs, laboratory data and radiologic findings are a specific. The authors investigated radiographic and particular CT patterns of intestinal infraction in 56 patients submitted to surgery within 12 hours of admission. We also report the CT findings of 5 of these patients who had reversible mesenteric ischemia. CT is more sensitive than radiography and does not exhibit the limitations of angiography (i.e., invasiveness, radiation exposure and complex organization). Therefore CT can presently be considered the method of choice in patients with suspected bowel infarction. [Italian] L'infarto intestinale rappresenta una malattia rara e tipica del soggeto anziano; nonostante il notevole perfezionamento delle tecniche di diagnostica per immagini e il progresso della chirurgia vascolare, rimane ancora oggi una delle piu' temibili condizioni di addome acuto, con mortalita' superiore al 70-80%. Il riconoscimento diagnostico e' tardivo per l'aspecificita' dei dati di laboratorio, dei segni clinici e degli esami radiologici. La TC presenta maggiore afficacia diagnostica rispetto all'esame radiografico diretto e non ha limiti che caratterizzano l'angiografia, quali l'invasivita', radioesposizione e complessita' organizzativa: attualmente la metodica TC puo' essere indicata come indagine di scelta in pazienti con sospetto infarto intestinale.

  17. Recommendations guide for the correct prescription's tests of diagnosis by image; Guia de recomendaciones para la correcta solicitud de pruebas de diagnostico por imagen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    instalaciones, la calidad de esas practicas, su justificacion y su optimizacion son hoy un tema relevante para las sociedades cientificas y los organismos reguladores. A partir de la adopcion de la Directiva 97/43/EURATOM, y la realizacion de la Conferencia de Malaga la mayoria de los paises europeos han implementado planes de accion para la proteccion radiologica del paciente, incluyendo la busqueda de consenso en relacion con la optimizacion de dosis y los criterios de justificacion para la indicacion de los examenes. Un ejemplo de ello es la guia PR/118 para la solicitud de estudios de diagnostico. En este marco, se llevaron a cabo en nuestro pais dos Jornadas sobre Proteccion Radiologica del Paciente (PRP) donde se organizaron 'Grupos de Trabajo' en Radiodiagnostico, Radioterapia, Medicina Nuclear y Radioproteccion de la Mujer Gestante, y se iniciaron actividades sistematicas que recibieron un fuerte apoyo institucional de la Sociedad Argentina de Radiologia, y concluyeron con la elaboracion de un 'Programa de Proteccion Radiologica del Paciente' que esta siendo implementando.

  18. Contribution to the radiological study of the eosinophilic granuloma of the mandible (Unifocal granuloma due to Langherans' cell histiocytosis); Contributo allo studio radiologico del granuloma eosinofilo della mandibola (granuloma unifocale da istiocitosi delle cellule di Lagherhans)

    Energy Technology Data Exchange (ETDEWEB)

    Chigi, Gino; Pastremoli, Alessandro; Pisi, Paolo; Pastremoli, Alfredo [Bologna Univ., Bologna (Italy). Dipartimento di scienze odontomastologiche; Bianchi, Giuseppe [Istituti Ortopedici Rizzoli, Bologna (Italy)

    2005-04-01

    Purpose: The radiological diagnosis of osteolytic lesions of the mandible still constitutes a challenge in some pathological conditions in which the clinical data and the case history are relatively uniform and the radiological picture is lacking in any characteristics. Materials and methods: We reviewed the conventional radiograms of six cases of Langherans' cell histiocytosis (LCH) of the mandible examined over the last ten years. The X-ray examinations were performed in the lateral-oblique projection to allow a view of the horizontal portion of the mandible almost completely free of overlapping images of other bone structures. Results: We identified a series of radiological patterns for these reticulo-endotheliopathies capable of causing granuloma formed by polinuclear eosinophils, plasma cells, lymphocytes, and large mononuclear macrophages with granulopexic and phagocytic activity that proliferate in the bone tissue and can be identified as the Langherans' cells of skin, mucosa, periodontal cavities and bone marrow. The granulomatous tissue penetrates the affected organ elements and, in its spread, it compresses, atrophies, and destroyed the damaged tissue, replacing it. The alterations produced by Langherans' cell histiocytic granuloma are most common in the skeletal system affecting, in order of frequency, the skull, the long bones of the limbs, the foot, the ribs and the spine. The oral mucosa is rarely involved. Conclusions: The radiological investigation of unifocal Langherans' cell histiocytic granuloma of the mandible is essential in the study of perimandibular swelling, although diagnosis is based on biopsy alone. In addition to digital or conventional radiography, other useful examinations are bone scintigraphy, Colour Doppler US, MR and CT, which enables a correct localisation necessary for planning the biopsy and treatment. [Italian] Scopo: La diagnosi radiologica delle lesioni osteolitiche della mandibola costituisce un problema

  19. Analysis of the results of CAT of thorax with bronchiectasis protocol, period 2000-2001 Hospital Calderon Guardia; Analisis de los resultados de TAC de torax con protocolo de bonquiectasias, periodo 2000-2001 Hospital Calderon Guardia

    Energy Technology Data Exchange (ETDEWEB)

    Pacheco Segura, Maureen [Costa Rica

    2003-07-01

    se utilizan metodos de imagen como radiografia de torax, broncografia y tomografia axial computarizada (TAC) de torax. Usualmente, el diagnostico se confirma por medio de una tomografia axial computerizada, la cual es la imagen de eleccion para establecer la presencia y extension de las bronquiectasias. Por otro lado, este estudio analiza la relacion clinica radiologica en los pacientes a los cuales se les realizo tomografia axial computarizada (TAC) de torax, con protocolo de bronquiectasias. Asi mismo se identifica la tecnica radiologica mas adecuada para obtener un resultado satisfactorio en la tomografia axial computarizada con protocolo de bronquiectasias.

  20. Hyperlucent lung; Pulmon hiperlucente

    Energy Technology Data Exchange (ETDEWEB)

    Jimenez-Gutierrez, Florana; Soto-Quiros, Manuel E [Hospital Nacional de Ninos, Servicio de Neumologia, apartado 1654-1000, San Jose (Costa Rica)

    2007-10-15

    infecciones de vias respiratorias bajas a repeticion, desde los primeros anos de vida y los que presentan disnea de esfuerzo. El diagnostico se suele realizar como un hallazgo incidental al hacer una radiografia de torax a un nino por infecciones respiratorias repetidas, o en la edad adulta en una exploracion radiologica de rutina, en una persona por lo demas asintomatica. Es importante diferenciar este sindrome de otras causas de hiperclaridad pulmonar unilateral en las radiografias de torax convencionales. Pocos casos del Sindrome Swyer-James han sido reportados en ninos. Se presenta el caso clinico de un paciente quien tuvo una bronconeomonia parainfluenza 3 al mes y 18 dias de edad. El diagnostico diferencial de este sindrome se debe hacer con otras entidades toracicas que disminuyen la densidad radiologica pulmonar unilateral. Se describe el caso clinico de un nino que es portador de pulmon hiperlucente. (autor)

  1. Contrast-enhanced power Doppler US in the characterization of renal masses; Power Doppler con mezzo di contrasto nella caratterizzazione delle masse renali

    Energy Technology Data Exchange (ETDEWEB)

    Ascenti, G.; Zimbaro, G.; Mazziotti, S.; Visalli, C.; Racchiusa, S.; Vinci, S.; Scribano, E. [Messina Univ., Messina (Italy). Ist. di Scienze Radiologiche

    2000-09-01

    -79) mediante power Doppler prima e dopo somministrazione di mdc ecografico (Levovist Schering AG, Berlino). L'architettura vascolare delle lesioni sia prima che dopo mdc e' stata suddivisa in cinque aspetti secondo la classificazione proposta da Jinzaki e Coll. Con power Doppler sono state identificate strutture vascolari in 34 lesioni. Dopo somministrazione di Levovist in 12/25 lesioni prive di segnali vascolari allo studio di base e' stata osservata comparsa di vascolarizzazione, marcata in 6 casi. In tutti i 34 noduli vascolarizzati e' stata osservata accentuazione dei segnali colore che ha consentito migliore definizione dei quadri vascolari. La caratterizzazione degli aspetti vascolari con power Doppler in condizioni basali ha consentito incremento dell'accuratezza diagnostica rispetto ai criteri semeiologici con scala di grigi (58% vs 32%) limitatamente alle lesioni iperecogene, alle cisti complesse e alle pseudomasse. Maggiori valori di accuratezza diagnostica (76% di diagnosi corrette) sono stati ottenuti dall'associazione del modo B e del power Doppler, indipendentemente dalla somministrazione di mdc. Nella nostra casistica il mdc ecografico non ha contribuito a elevare l'accuratezza diagnostica del power Doppler nella diagnosi differenziale delle lesioni iperecogene; di contro il suo impiego puo' essere utile nella caratterizzazione di sospette pseudomasse e cisti complesse.

  2. Alteration patterns of brain glucose metabolism: comparisons of healthy controls, subjective memory impairment and mild cognitive impairment.

    Science.gov (United States)

    Song, In-Uk; Choi, Eun Kyoung; Oh, Jin Kyoung; Chung, Yong-An; Chung, Sung-Woo

    2016-01-01

    Some groups have focused on the detection and management of subjective memory impairment (SMI) as the stage that precedes mild cognitive impairment (MCI). However, there have been few clinical studies that have examined biomarkers of SMI to date. To investigate the differences in glucose metabolism as a prodromal marker of dementia in patients with SMI, MCI, and healthy controls using brain F-18 fluoro-2-deoxyglucose positron emission tomography (FDG-PET). Sixty-eight consecutive patients with SMI, 47 patients with MCI, and 42 age-matched healthy subjects were recruited. All subjects underwent FDG-PET and detailed neuropsychological testing. FDG-PET images were analyzed using the statistical parametric mapping (SPM) program. FDG-PET analysis showed glucose hypometabolism in the periventricular regions of patients with SMI and in the parietal, precentral frontal, and periventricular regions of patients with MCI compared with healthy controls. Interestingly, hypometabolism on FDG-PET was noted in the parietal and precentral frontal regions in MCI patients compared to SMI patients. The results suggest that hypometabolism in the periventricular regions as seen on FDG-PET may play a role as a predictive biomarker of pre-dementia, and the extension of reduced glucose metabolism into parietal regions likely reflects progression of cognitive deterioration. © The Foundation Acta Radiologica 2014.

  3. Automatic national network of radiation environmental monitoring in Mexico; Red nacional automatica de monitoreo radiologico ambiental en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Aguirre, Jaime; Delgado, Jose L.; Lopez, Manuel; Zertuche, Jorge V., E-mail: jaguirre@cnsns.gob.mx, E-mail: jldelgado@cnsns.gob.mx, E-mail: mlopez@cnsns.gob.mx, E-mail: jorge.zertuche@cnsns.gob.mx [Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS), D.F. (Mexico). Direccion de Vigilancia Radiologica

    2013-07-01

    The Direccion de Vigilancia Radiologica (DVR) of the Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS) de Mexico, performs several function for environmental radiation monitoring. One of these functions is the permanent monitoring of the environmental gamma radiation. For this, it implemented the Red Nacional Automatica de Monitoreo Radiologico Ambiental (RENAMORA) - the National Automated Network for Environmental Radiation Monitoring,which currently comprises 60 detector probes for gamma radiation which with a programmable system that includes information technologies, data transmission and software can send the information in real time to a primary center of data located in the facilities of CNSNS. - When the data are received, the system performs the verification and extraction of the information organized in Tables and charts, and generates a report of environmental gamma radiation dose rate average for each of the probes and for each period of time determined bu CNSNS. The RENAMORA covers the main cities and allows to establish the bases of almost the entire country, as well as to warn about abnormal situations caused by incidents or natural events generated by human activities inside or outside the country which involves radioactive materials; paying special attention to main radiological sites, such as the surroundings of the Laguna Verde Nuclear Power Plants, research centers and the radioactive waste disposal sites.

  4. Development of a dose database in the refuelling scenario of a nuclear power plant for a virtual reality application

    International Nuclear Information System (INIS)

    Rodenas, J.; Zarza, I.; Pascual, A.; Felipe, A.; Sanchez-Mayoral, M.L.

    2002-01-01

    Operators in Nuclear Power Plants can receive high doses during refuelling operation. A training program simulating refuelling operations will be useful to reduce doses received by workers as well as to minimise operation time. With this goal in mind a Virtual Reality application is developed in the frame of CIPRES Project (Calculos Interactivos de Proteccion Radiologica en un Entorno de Simulacion - Interactive Calculations of Radiological Protection in a Simulation Environment), a RD project sponsored by IBERINCO and developed jointly by IBERINCO and the Nuclear Engineering Department of the Polytechnic University of Valencia. The Virtual Reality application requires the possibility of displaying doses, both instantaneous and accumulated, at all times during the operator training. Therefore, it is necessary to elaborate a database containing dose rates at every point of the refuelling plant. This database is elaborated from Radiological Protection Surveillance data measured throughout the plant during refuelling operation. To estimate doses throughout the refuelling plant some interpolation routines have been used. Different assumptions have been adopted in order to perform the interpolation and obtain consistent data. In this paper, procedures developed to elaborate the dose database for the Virtual Reality application are presented and analysed

  5. Functional neuroanatomy associated with the interaction between emotion and cognition in explicit memory tasks in patients with generalized anxiety disorder.

    Science.gov (United States)

    Moon, Chung-Man; Yang, Jong-Chul; Jeong, Gwang-Woo

    2017-01-01

    The functional neuroanatomy for explicit memory in conjunction with the major anxiety symptoms in patients with generalized anxiety disorder (GAD) has not yet been clearly identified. To investigate the brain activation patterns on the interaction between emotional and cognitive function during the explicit memory tasks, as well as its correlation with clinical characteristics in GAD. The participants comprised GAD patients and age-matched healthy controls. The fMR images were obtained while the participants performed an explicit memory task with neutral and anxiety-inducing words. Patients showed significantly decreased functional activities in the putamen, head of the caudate nucleus, hippocampus, and middle cingulate gyrus during the memory tasks with the neutral and anxiety-inducing words, whereas the precentral gyrus and ventrolateral prefrontal cortex were significantly increased only in the memory tasks with the anxiety-inducing words. Also, the blood oxygenation level-dependent (BOLD) signal changes in the hippocampus were positively correlated with the recognition accuracy for both neutral and anxiety-inducing words. This study identified the brain areas associated with the interaction between emotional regulation and cognitive function in the explicit memory tasks in patients with GAD. These findings would be helpful to understand the neural mechanism on the explicit memory-related cognitive deficits and emotional dysfunction with GAD symptoms. © The Foundation Acta Radiologica 2016.

  6. Management responsible for the radioactive waste in the University of Costa Rica

    International Nuclear Information System (INIS)

    Mora, P.; Varela, A.

    2003-01-01

    Through the University Plan de Seguridad Radiologica (PSR), established in 1990, radioactive wastes generated by the University of Costa Rica (UCR) personnel are handled. They are properly collected, stroraged and disposed. The waste room is used by the following centers: Laboratorio de Fisica Nuclear Aplicada, Instituto de Investigaciones en Salud, Centro de Biologia Celular y Molecular and Centro de Investigaciones en Contaminacion Ambiental. The PSR has prestorage procedures, internal controls inside the waste room, protocols for storage, withdraw of sources, and discharges to the environment according to national and international legislation. The main radioactive wastes in liquid or solid forms contain p 32 , I 125 , S 35 y C 14 that eventually be disposed as excempted materials. The waste room stores sources with the following radionuclides Cs 137 , U 238 , Th 232 , Sr 90 , Ra 226 , Cd 109 , Cf 252 and Am 241 . It has 96 permanent sources and 52 that will be disposed. The PSR allows the University to have a centralized facility for the safe management of all radioactive waste generated locally. (Author) [es

  7. Determination of Fe-55 and Ni-63 in Environmental Samples. Analytical Problems. Characteristic Limits. Automatized Calculation; Determinacion de 55{sup F}e y 63{sup N}i en Muestras Ambientales. Problemas Analiticos. Limites Caracteristicos. Calculo Automatizado

    Energy Technology Data Exchange (ETDEWEB)

    Gasco, C; Navarro, N; Gonzalez, P; Heras, M C; Gapan, M P; Alonso, C; Calderon, A; Sanchez, D; Morante, R; Fernandez, M; Gajate, A; Alvarez, A

    2008-08-06

    The Department of Vigilance Radiologica y Radiactividad Ambiental from CIEMAT has developed an appropriate analytical methodology for Fe-55 and Ni-63 sequential determination in environmental samples based on the procedure used by RIS0 Laboratories. The experimental results obtained in the mayor and minor elements behaviour (soil and air constituents) in the different types of resins used for separating Fe-55 and Ni-63 are showed in this report. The measuring method of both isotopes by scintillation counting has been optimized with Ultima Gold liquid with different concentrations of stable element Fe and Ni. The decontamination factors of different gamma-emitters are experimentally determined in this method with the presence of soil matrix. The Fe-55 and Ni-63 activity concentrations and their associated uncertainties have been calculated from the counting data and sample preparation. A computer application has been implemented in Visual Basic in excel sheets for: (I) obtaining the counting data from spectrometer and counts in each window, (II) representing graphically the background and sample spectrums, (III) determining the activity concentration and its associated uncertainty and (IV) calculating the characteristic limits using ISO 11929 (2007) with various confidence levels. (Author) 30 refs.

  8. Computer-aided detection system for chest radiography: reducing report turnaround times of examinations with abnormalities.

    Science.gov (United States)

    Kao, E-Fong; Liu, Gin-Chung; Lee, Lo-Yeh; Tsai, Huei-Yi; Jaw, Twei-Shiun

    2015-06-01

    The ability to give high priority to examinations with pathological findings could be very useful to radiologists with large work lists who wish to first evaluate the most critical studies. A computer-aided detection (CAD) system for identifying chest examinations with abnormalities has therefore been developed. To evaluate the effectiveness of a CAD system on report turnaround times of chest examinations with abnormalities. The CAD system was designed to automatically mark chest examinations with possible abnormalities in the work list of radiologists interpreting chest examinations. The system evaluation was performed in two phases: two radiologists interpreted the chest examinations without CAD in phase 1 and with CAD in phase 2. The time information recorded by the radiology information system was then used to calculate the turnaround times. All chest examinations were reviewed by two other radiologists and were divided into normal and abnormal groups. The turnaround times for the examinations with pathological findings with and without the CAD system assistance were compared. The sensitivity and specificity of the CAD for chest abnormalities were 0.790 and 0.697, respectively, and use of the CAD system decreased the turnaround time for chest examinations with abnormalities by 44%. The turnaround times required for radiologists to identify chest examinations with abnormalities could be reduced by using the CAD system. This system could be useful for radiologists with large work lists who wish to first evaluate the most critical studies. © The Foundation Acta Radiologica 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  9. Visual rating method and tensor-based morphometry in the diagnosis of mild cognitive impairment and Alzheimer's disease: a comparative magnetic resonance imaging study.

    Science.gov (United States)

    Tuokkola, Terhi; Koikkalainen, Juha; Parkkola, Riitta; Karrasch, Mira; Lötjönen, Jyrki; Rinne, Juha O

    2016-03-01

    Atrophy of the medial temporal lobe (MTL) is the main structural magnetic resonance imaging (MRI) finding in the brain of patients with Alzheimer's disease (AD). However, evaluating the degree of atrophy is still demanding. The visual rating method (VRM) was compared with multi-template tensor-based morphometry (TBM), in terms of its efficacy in diagnosing of mild cognitive impairment (MCI) and AD. Forty-seven patients with MCI, 80 patients with AD and 84 controls were studied. TBM seems to be more sensitive than VRM at the early stage of dementia in the areas of MTL and ventricles. The methods were equally good in distinguishing controls and the MCI group from the AD group. At the frontal areas TBM was better than VRM in all comparisons. A user-friendly VRM is still useful for the clinical evaluation of MCI patients, but multi-template TBM is more sensitive for diagnosing the early stages of dementia. However, TBM is currently too demanding to use for daily clinical work. © The Foundation Acta Radiologica 2015.

  10. General comments on radiological patient protection in nuclear medicine

    Energy Technology Data Exchange (ETDEWEB)

    Tellez de Cepeda, M; Plaza, R; Corredoira, E [Servicio de Radiofisica y Radioproteccion, Hospital Universitario La Paz, Madrid (Spain); Martin Curto, L M [Servicio de Medicina Nuclear, Hospital Universitario La Paz, Madrid (Spain)

    2001-03-01

    In this paper an observation series about different aspects of the radiological protection of the patient in nuclear medicine is provided. It includes: The specific legislation contribution, the justification and, especially, optimization, as a fundamental base of the quality guarantee program, the importance of the fulfillment of the program and the importance of getting done the corresponding internal audits of the pursuit, the communication between the different groups of professionals implicated and between these and the patient, the volunteers who collaborate in the patient's care and the people in the patient's environment, knowing that the patient is a source of external radiation and contamination. (author) [Spanish] Se resumen en este trabajo, una serie de observaciones sobre distintos aspectos de la proteccion radiologica del paciente en Medicina Nuclear que incluyen: El aporte de la legislacion especifica, los principios de justificacion y optimizacion (en especial este ultimo) como base fundamental del programa de garantia de calidad asi como la importancia de que dicho programa se cumpla y se lleven a cabo las correspondientes auditorias internas de seguimiento, la comunicacion tanto entre los diferentes grupos de profesionales implicados como entre estos y el paciente, los voluntarios que colaboran en su cuidado y las personas de su entorno, teniendo en cuenta que el paciente es una fuente de radiacion externa y contaminacion. (author)

  11. Air kerma standard for calibration of well-type chambers in Brazil using {sup 192}Ir HDR sources and its traceability

    Energy Technology Data Exchange (ETDEWEB)

    Di Prinzio, Renato; Almeida, Carlos Eduardo de [Laboratorio de Ciencias Radiologicas-Universidade do Estado do Rio de Janeiro (LCR/UERJ), R. Sao Francisco Xavier, 524, Pavilhao Haroldo Lisboa da Cunha, Terreo, Sala 136-Maracana, CEP 20550-900-Rio de Janeiro/RJ-Rio de Janeiro, RJ (Brazil) and Instituto de Radioprotecao e Dosimetria-Comissao Nacional de Energia Nuclear (IRD/CNEN), Av. Salvador Allende, s/n, Jacarepagua-CE22780-160-Rio de Janeiro, RJ (Brazil); Laboratorio de Ciencias Radiologicas-Universidade do Estado do Rio de Janeiro (LCR/UERJ), R. Sao Francisco Xavier, 524, Pavilhao Haroldo Lisboa da Cunha, Terreo, Sala 136-Maracana, CEP 20550-900-Rio de Janeiro/RJ-Rio de Janeiro, RJ (Brazil)

    2009-03-15

    In Brazil there are over 100 high dose rate (HDR) brachytherapy facilities using well-type chambers for the determination of the air kerma rate of {sup 192}Ir sources. This paper presents the methodology developed and extensively tested by the Laboratorio de Ciencias Radiologicas (LCR) and presently in use to calibrate those types of chambers. The system was initially used to calibrate six well-type chambers of brachytherapy services, and the maximum deviation of only 1.0% was observed between the calibration coefficients obtained and the ones in the calibration certificate provided by the UWADCL. In addition to its traceability to the Brazilian National Standards, the whole system was taken to University of Wisconsin Accredited Dosimetry Calibration Laboratory (UWADCL) for a direct comparison and the same formalism to calculate the air kerma was used. The comparison results between the two laboratories show an agreement of 0.9% for the calibration coefficients. Three Brazilian well-type chambers were calibrated at the UWADCL, and by LCR, in Brazil, using the developed system and a clinical HDR machine. The results of the calibration of three well chambers have shown an agreement better than 1.0%. Uncertainty analyses involving the measurements made both at the UWADCL and LCR laboratories are discussed.

  12. Automatic national network of radiation environmental monitoring in Mexico

    International Nuclear Information System (INIS)

    Aguirre, Jaime; Delgado, Jose L.; Lopez, Manuel; Zertuche, Jorge V.

    2013-01-01

    The Direccion de Vigilancia Radiologica (DVR) of the Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS) de Mexico, performs several function for environmental radiation monitoring. One of these functions is the permanent monitoring of the environmental gamma radiation. For this, it implemented the Red Nacional Automatica de Monitoreo Radiologico Ambiental (RENAMORA) - the National Automated Network for Environmental Radiation Monitoring,which currently comprises 60 detector probes for gamma radiation which with a programmable system that includes information technologies, data transmission and software can send the information in real time to a primary center of data located in the facilities of CNSNS. - When the data are received, the system performs the verification and extraction of the information organized in Tables and charts, and generates a report of environmental gamma radiation dose rate average for each of the probes and for each period of time determined bu CNSNS. The RENAMORA covers the main cities and allows to establish the bases of almost the entire country, as well as to warn about abnormal situations caused by incidents or natural events generated by human activities inside or outside the country which involves radioactive materials; paying special attention to main radiological sites, such as the surroundings of the Laguna Verde Nuclear Power Plants, research centers and the radioactive waste disposal sites

  13. Workshop Euratom Directive 97/43. New trends in radiation protection in clinical practice, in research and in regulation; Giornata di studio La Direttiva Europea 97/43: nuovi orientamenti per la radioprotezione nella pratica clinica, nella ricerca e nel quadro normativo

    Energy Technology Data Exchange (ETDEWEB)

    Mazzei, F [ed.; Istituto Superiore di Sanita' , Rome (Italy). Lab. di Fisica

    1999-07-01

    The Euratom Directive 97/43 on health protection of individuals against the dangers of ionizing radiation in relation to medical exposure is presented. In particular the following topics are focused, with a multidisciplinary approach, on: diagnostic reference levels in radiodiagnostics and nuclear medicine; radiation protection in paediatrics, in interventional radiology and in computer tomography; radiation protection radiotherapy, radiation protection in medical research; radiation protection in prenatal and neonatal exposure; radiation protection in medical-legal exposures. [Italian] Il rapporto raccoglie una presentazione della Direttiva Euratom 97/43 riguardante la protezione sanitaria delle persone contro i pericoli delle radiazioni ionizzanti connessi a esposizioni mediche. In particolare sono affrontati in modo interdisciplinare i seguenti argomenti: livelli diagnostici di riferimento in radiodiagnostica e in medicina nucleare; radioprotezione nelle esposizioni in eta' pediatrica, in radiologica interventistica e in tomografia computerizzata; radioprotezione in radioterapia; radioprotezione nella ricerca scientifica clinica; radioprotezione nell'esposizione in eta' prenatale e neonatale; esposizioni potenziali e radioprotezione nelle esposizioni medico-legali.

  14. Preparation of mandatory documentation before the start up of the RA-0 `zero power` nuclear reactor at Cordoba National University; Preparacion de la documentacion mandatoria para la puesta en marcha del reactor nuclear RA-0 en la Universidad Nacional de Cordoba

    Energy Technology Data Exchange (ETDEWEB)

    Martin, H R; Keil, W M; Pezzi, N

    1992-12-31

    Before the start up of the RA-0 `zero power` nuclear reactor installed at Cordoba National University, it was necessary to send to the Regulatory Authority the mandatory documentation which is required in the licensing process. With the previous papers existing for the operation in the first years of the `70, a work program for the future operational training personnel was elaborated. Based on the Authority`s applicable rules and the recommendations and with particular criteria originated in the working university conditions, the SAFETY report of RA-0 nuclear reactor was prepared. This paper describes the principal contents, items and documents involved in the safety report. (Author). [Espanol] Con motivo de la nueva puesta en servicio del REACTOR NUCLEAR RA-0 fue necesario elaborar la documentacion mandatoria requerida por la Autoridad Regulatoria Nacional. Siguiendo los lineamientos de las normas y recomendaciones vigentes e incluyendo criterios propios en lo que debia ser el contenido final de dicha documentacion, fue preparado lo que se ha denominado el INFORME DE SEGURIDAD DEL REACTOR NUCLEAR RA-0. Este documento que se describe en este trabajo, si bien contiene las habituales descripciones de todos los Informes de Seguridad, incluye otros aspectos que no siendo requeridos expresamente en el mismo, han dado una mayor coherencia a la conformacion de todos los aspectos que interrelacionan las areas de seguridad fisica, radiologica, nuclear y de control de materiales nucleares bajo salvaguardias. (Autor).

  15. New perspective for radiation protection in diagnostic procedure in Paraguay

    International Nuclear Information System (INIS)

    Sosky, R.A.; Gamarra, M.

    2001-01-01

    The Government in Paraguay approved by Decree Law 10754, dated October 6, 2000, its National Regulation on Basic Safety Standards for Radiation Protection and the Safety of Radiation Sources, based on the IAEA Safety Standards 115. The primary goal of Patient Protection is to ensure that both Regulatory Authorities and all Responsible parties in Medical Practices observe procedural process in conducting their responsibilities on regulatory and administrative affairs. On one side the Government, 'Department de Proteccion Radiologica', under the Health Ministry and Comision Nacional de Energia Atomica, and on the other side, the medical practitioner who prescribes or conducts diagnostic or therapeutic treatment, both ensure that the exposure of patients be the minimum. This document describes how the Regulatory Authorities intend to implement this recent act and on the other hand take the advantage of this Conference to understand better this subject, especially on the following subjects: essential requirement for licensing, inspection and enforcement programme in the country's capital and in the interior, where there are more difficulties; workers and medical training and lessons learned applying to developing countries. (author)

  16. Workshop Euratom Directive 97/43. New trends in radiation protection in clinical practice, in research and in regulation; Giornata di studio La Direttiva Europea 97/43: nuovi orientamenti per la radioprotezione nella pratica clinica, nella ricerca e nel quadro normativo

    Energy Technology Data Exchange (ETDEWEB)

    Mazzei, F. [ed.] [Istituto Superiore di Sanita' , Rome (Italy). Lab. di Fisica

    1999-07-01

    The Euratom Directive 97/43 on health protection of individuals against the dangers of ionizing radiation in relation to medical exposure is presented. In particular the following topics are focused, with a multidisciplinary approach, on: diagnostic reference levels in radiodiagnostics and nuclear medicine; radiation protection in paediatrics, in interventional radiology and in computer tomography; radiation protection radiotherapy, radiation protection in medical research; radiation protection in prenatal and neonatal exposure; radiation protection in medical-legal exposures. [Italian] Il rapporto raccoglie una presentazione della Direttiva Euratom 97/43 riguardante la protezione sanitaria delle persone contro i pericoli delle radiazioni ionizzanti connessi a esposizioni mediche. In particolare sono affrontati in modo interdisciplinare i seguenti argomenti: livelli diagnostici di riferimento in radiodiagnostica e in medicina nucleare; radioprotezione nelle esposizioni in eta' pediatrica, in radiologica interventistica e in tomografia computerizzata; radioprotezione in radioterapia; radioprotezione nella ricerca scientifica clinica; radioprotezione nell'esposizione in eta' prenatale e neonatale; esposizioni potenziali e radioprotezione nelle esposizioni medico-legali.

  17. User manual of nuclide dispersion in phreatic aquifers model

    International Nuclear Information System (INIS)

    Rives, D.E.

    1999-01-01

    The Nuclide Dispersion in Phreatic Aquifers (DRAF) model was developed in the 'Division Estudios Ambientales' of the 'Gerencia de Seguridad Radiologica y Nuclear, Comision Nacional de Energia Atomica' (1991), for the Safety Assessment of Near Surface Radioactive Waste Disposal Facilities. Afterwards, it was modified in several opportunities, adapting it to a number of application conditions. The 'Manual del usuario del codigo DRAF' here presented is a reference document for the use of the last three versions of the code developed for the 'Autoridad Regulatoria Nuclear' between 1995 and 1996. The DRAF model solves the three dimension's solute transport equation for porous media by the finite differences method. It takes into account the advection, dispersion, radioactive decay, and retention in the solid matrix processes, and has multiple possibilities for the source term. There are three versions of the model, two of them for the saturated zone and one for the unsaturated zone. All the versions have been verified in different conditions, and have been applied in exercises of the International Atomic Energy Agency and also in real cases. (author)

  18. Resting-state networks in healthy adult subjects: a comparison between a 32-element and an 8-element phased array head coil at 3.0 Tesla.

    Science.gov (United States)

    Paolini, Marco; Keeser, Daniel; Ingrisch, Michael; Werner, Natalie; Kindermann, Nicole; Reiser, Maximilian; Blautzik, Janusch

    2015-05-01

    Little research exists on the influence of a magnetic resonance imaging (MRI) head coil's channel count on measured resting-state functional connectivity. To compare a 32-element (32ch) and an 8-element (8ch) phased array head coil with respect to their potential to detect functional connectivity within resting-state networks. Twenty-six healthy adults (mean age, 21.7 years; SD, 2.1 years) underwent resting-state functional MRI at 3.0 Tesla with both coils using equal standard imaging parameters and a counterbalanced design. Independent component analysis (ICA) at different model orders and a dual regression approach were performed. Voxel-wise non-parametric statistical between-group contrasts were determined using permutation-based non-parametric inference. Phantom measurements demonstrated a generally higher image signal-to-noise ratio using the 32ch head coil. However, the results showed no significant differences between corresponding resting-state networks derived from both coils (p coil does not offer any significant advantages in detecting ICA-based functional connectivity within RSNs. © The Foundation Acta Radiologica 2015 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  19. Bleeding after expandable nitinol stent placement in patients with esophageal and upper gastrointestinal obstruction: incidence, management, and predictors.

    Science.gov (United States)

    Oh, Se Jin; Song, Ho-Young; Nam, Deok Ho; Ko, Heung Kyu; Park, Jung-Hoon; Na, Han Kyu; Lee, Jong Jin; Kang, Min Kyoung

    2014-11-01

    Placement of self-expandable nitinol stents is useful for the treatment of esophageal and upper gastrointestinal (GI) obstruction. However, complications such as stent migration, tumor overgrowth, and bleeding occur. Although stent migration and tumor overgrowth are well documented in previous studies, the occurrence of bleeding has not been fully evaluated. To evaluate the incidence, management strategies, and predictors of bleeding after placement of self-expandable nitinol stents in patients with esophageal and upper GI obstruction. We retrospectively reviewed the medical records and results of computed tomography and endoscopy of 1485 consecutive patients with esophageal and upper GI obstructions who underwent fluoroscopically guided stent placement. Bleeding occurred in 25 of 1485 (1.7%) patients 0 to 348 days after stent placement. Early stent-related bleeding occurred in 10 patients (40%) and angiographic embolization was used for 5/10. Late bleeding occurred in 15 patients (60%) and endoscopic hemostasis was used for 7/15. Twenty-two of 25 (88%) patients with bleeding had received prior radiotherapy and/or chemotherapy. Bleeding is a rare complication after placement of expandable nitinol stents in patients with esophageal and upper GI obstruction, but patients with early bleeding may require embolization for control. Care must be exercised on placing stents in patients who have received prior radiotherapy or chemotherapy. © The Foundation Acta Radiologica 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  20. False positive or negative results of shear-wave elastography in differentiating benign from malignant breast masses: analysis of clinical and ultrasonographic characteristics.

    Science.gov (United States)

    Kim, Mi Young; Choi, Nami; Yang, Jung-Hyun; Yoo, Young Bum; Park, Kyoung Sik

    2015-10-01

    Shear-wave elastography (SWE) has the potential to improve diagnostic performance of conventional ultrasound (US) in differentiating benign from malignant breast masses. To investigate false positive or negative results of SWE in differentiating benign from malignant breast masses and to analyze clinical and imaging characteristics of the masses with false SWE findings. From May to October 2013, 166 breast lesions of 164 consecutive women (mean age, 45.3 ± 10.1 years) who had been scheduled for biopsy were included. Conventional US and SWE were performed in all women before biopsy. Clinical, ultrasonographic morphologic features and SWE parameters (pattern classification and standard deviation [SD]) were recorded and compared with the histopathology results. Patient and lesion factors in the "true" and "false" groups were compared. Of the 166 masses, 118 (71.1%) were benign and 48 (28.9%) were malignant. False SWE features were more frequently observed in benign masses. False positive rates of benign masses and false negative rates of malignancy were 53% and 8.2%, respectively, using SWE pattern analysis and were 22.4% and 10.3%, respectively, using SD values. A lesion boundary of the masses on US (P = 0.039) and younger patient age (P = 0.047) were significantly associated with false SWE findings. These clinical and ultrasonographic features need to be carefully evaluated in performance and interpretation of SWE examinations. © The Foundation Acta Radiologica 2014.