The directive establishing a community framework for the nuclear safety of nuclear installations: the European Union approach to nuclear safety

International Nuclear Information System (INIS)

Garribba, M.; Chirtes, A.; Nauduzaite, M.

2009-01-01

This article aims at explaining the evolution leading to the adoption of the recent Council Directive 2009/71/EURATOM establishing a Community framework for the nuclear safety of nuclear installations adopted with the consent of all 27 members states following the overwhelming support of the European Parliament, that creates for the first time, a binding legal framework that brings legal certainty to European Union citizens and reinforces the role and independence of national regulators. The paper is divided into three sections. The first section addresses the competence of the European Atomic energy Community to legislate in the area of nuclear safety. It focuses on the 2002 landmark ruling of the European Court of justice that confirmed this competence by recognizing the intrinsic link between radiation protection and nuclear safety. The second part describes the history of the Nuclear safety directive from the initial 2003 European Commission proposal to today 's text in force. The third part is dedicated to a description of the content of the Directive and its implications on the further development of nuclear safety in the European Union. (N.C.)

Stakeholder involvement in international conventions governing civil nuclear activities

International Nuclear Information System (INIS)

Emmerechts, Sam

2017-01-01

Mr Emmerechts explained that international conventions have varying positions on stakeholders and their involvement depending upon the intent of the legislator and the field they cover, ranging from a narrow to a broad interpretation. He addressed stakeholder involvement in two other international conventions governing civil nuclear activities, namely the Convention on Nuclear Safety, and the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (the Joint Convention), both concluded under the auspices of the International Atomic Energy Agency (IAEA). He noted that the Convention on Nuclear Safety remains a 'traditional' international legal instrument, focusing on governments and governmental bodies as the main stakeholders and limiting obligations regarding the involvement of the public and intergovernmental organisations to their receiving information and observing. Likewise, the Joint Convention limits obligations regarding public involvement to access to information, notably as to the siting of proposed facilities. However, he noted that in the European Union, the Directive on Nuclear Safety (2014/87/Euratom) and the Directive for the Safe Management of Spent Fuel and Radioactive Waste (2011/70/Euratom) have more advanced public participation requirements in nuclear decision making. Mr Emmerechts explained that the substantial differences between nuclear legislation and the Aarhus and Espoo Conventions with regards to public involvement requirements could partly be explained by the technicality of nuclear information and by issues related to nuclear security

A neutron irradiator to perform nuclear activation

International Nuclear Information System (INIS)

Zamboni, C. B.; Zahn, G.S.; Figueredo, A. M. G.; Madi, T. F.; Yoriyaz, H.; Lima, R. B.; Shtejer, K.; Dalaqua Jr, L.

2001-01-01

The development of appropriate nuclear instrumentation to perform neutron activation analyze (NAA), using thermal and fast neutrons, can be useful to investigate materials outside the reactor premises. Considering this fact, a small size neutron irradiator prototype was developed at IPEN facilities (Instituto de Pesquisas Energeticas e Nucleares - Brazil). Basically, this prototype consists of a cylinder of 1200 mm long and 985 mm diameter (filled with paraffin) with two Am-Be sources (600GBq each) arranged in the longitudinal direction of its geometric center. The material to be irradiated is positioned at a radial direction of the cylinder between the two Am-Be sources. The main advantage of this irradiator is a very stable neutron flux eliminating the use of standard material (measure of the induced activity in the sample by comparative method). This way the process became agile, practical and economic, but quantities at mg levels of samples are necessary to achieve good sensitivity, when the material has a low microscopy neutron cross section. As fast and thermal neutron can be used, the flux distribution, for both, were calculated and the prototype performance is discussed

Summary of recent works conducted in Azerbaijan Republic in the direction of peaceful use of nuclear energy

International Nuclear Information System (INIS)

Garibov, A.A.

2012-01-01

Full text :The following terms are shown for the projects carried out on peaceful use of nuclear energy: Scientific-technical innovations; Economical productivity; Maintenance of nuclear security and radiation safety; Competitiveness and inability of execution with order methods. In the Republic of Azerbaijan at state level has been determined the strategically trends in the direction of peaceful use of nuclear energy and expedient works are carried out. The achieved condition allows developing of the most advanced world technologies, scientific and technical directions in Azerbaijan Republic. For this purpose, the most advanced and modern projects are being conducted in the direction of peaceful use of nuclear and radiation technologies : 1) The most modern monitoring equipment's have been installed in all border crossing points and permanent and operative working regime has been provided. Import-export monitoring system is being conducted according to the international requirements; 2) The body provided with the most advanced technology and equipment's has been developed on the execution of storage and utilization of nuclear and radioactive wastes and existing problems in the field are being successfully solved; 3) The most advanced equipment's, methods and technologies are being applied on the basis of nuclear and radioactive materials in the diagnosis and treatment fields of medicine. 4. The most modern radiation calibrating and standardization center are being developed in the Republic. 5. Project is being carried out on the establishment of complex of the most modern sterilization purpose with high-active isotope source in Azerbaijan Republic; 6) Scientific-research works in Azerbaijan republic on peaceful use of nuclear energy has been carried out in the most actual directions since 1969; 7) Azerbaijan Republic actively participates in national and regional projects together with IAEA and other international organizations.

Active neutron technique for detecting attempted special nuclear material diversion

International Nuclear Information System (INIS)

Smith, G.W.; Rice, L.G. III.

1979-01-01

The identification of special nuclear material (SNM) diversion is necessary if SNM inventory control is to be maintained at nuclear facilities. (Special nuclear materials are defined for this purpose as either 235 U of 239 Pu.) Direct SNM identification by the detection of natural decay or fission radiation is inadequate if the SNM is concealed by appropriate shielding. The active neutron interrogation technique described combines direct SNM identification by delayed fission neutron (DFN) detection with implied SNM detection by the identification of materials capable of shielding SNM from direct detection. This technique is being developed for application in an unattended material/equipment portal through which items such as electronic instruments, packages, tool boxes, etc., will pass. The volume of this portal will be 41-cm wide, 53-cm high and 76-cm deep. The objective of this technique is to identify an attempted diversion of at least 20 grams of SNM with a measurement time of 30 seconds

Nuclear Activities in Argentina, 2010

International Nuclear Information System (INIS)

Ferreri, J.C.; Ferreri, J.C.; Clausse, A.; Clausse, A.; Clausse, A.; Ordonez, J.P.; Mazzantini, O.A.

2011-01-01

Nuclear activities in Argentina are restarted. After almost two decades of near stagnation, the governments political decision of August 2006 regarding electrical energy production, considered the nuclear option as a valid one to solve the problems of the growing demand of electrical energy. This decision triggered again the activities related to the finalization of the third nuclear power reactor (Atucha-II), now actively progressing, the construction of a prototype of the CAREM integral advanced reactor, the life extension of the Embalse CANDU nuclear power plant (NPP) and the studies for the emplacement of a fourth NPP in an appropriate site. In all those years of near stagnation, there were notable exceptions related to the design and construction of experimental and radioisotope production reactors, led by INVAP, a state-owned industry, which exported its production. The accompanying industries of nuclear fuel elements production also remained active, given the demand of the two active NPPs. Meanwhile, the National Atomic Energy Commission of Argentina continued the efforts on research and development that were at the base of the technological achievements of the nuclear activities in Argentina. Nuclear safety studies associated with Atucha II and Embalse NPPs and radiological safety were also a substantive part of the continued efforts by Nucleo-Electrica de Argentina SA and the Nuclear Regulatory Authority of Argentina

Ascertaining directionality information from incident nuclear radiation

Energy Technology Data Exchange (ETDEWEB)

Archambault, Brian C. [Purdue University (United States); Lapinskas, Joseph R. [QSA Global, Inc. (United States); Wang Jing; Webster, Jeffrey A. [Purdue University (United States); McDeavitt, Sean [Texas A and M University (United States); Taleyarkhan, Rusi P., E-mail: rusi@purdue.edu [Purdue University (United States)

2011-10-15

Highlights: > Use of tensioned metastable fluids for detection of fast neutron radiation. > Monitored neutrons with 100% gamma photon blindness capability. > Monitored direction of incoming neutron radiation from special nuclear material emissions. > Ascertained directionality of neutron source to within 30 deg. and with 80% confidence with 2000 detection events at rate of 30-40 per second. > Conducted successful blind test for determining source of neutrons from a hidden neutron emitting source. > Compared results with MCNP5-COMSOL based multi-physics model. - Abstract: Unprecedented capabilities for the detection of nuclear particles via tailored resonant acoustic systems such as the acoustic tensioned metastable fluid detection (ATMFD) systems were assessed for determining directionality of incoming fast neutrons. This paper presents advancements that expand on these accomplishments, thereby increasing the accuracy and precision of ascertaining directionality information utilizing enhanced signal processing-cum-signal analysis, refined computational algorithms, and on demand enlargement of the detector sensitive volume. Advances in the development of ATMFD systems were accomplished utilizing a combination of experimentation and theoretical modeling. Modeling methodologies include Monte-Carlo based nuclear particle transport using MCNP5 and multi-physics based assessments accounting for acoustic, structural, and electromagnetic coupling of the ATMFD system via COMSOL's multi-physics simulation platform. Benchmarking and qualification studies have been conducted with a 1 Ci Pu-Be neutron-gamma source. These results show that the specific ATMFD system used for this study can enable detection of directionality of incoming fast neutrons from the neutron source to within 30{sup o} with 80% confidence; this required {approx}2000 detection events which could be collected within {approx}50 s at a detection rate of {approx}30-40 per second. Blind testing was

Ascertaining directionality information from incident nuclear radiation

International Nuclear Information System (INIS)

Archambault, Brian C.; Lapinskas, Joseph R.; Wang Jing; Webster, Jeffrey A.; McDeavitt, Sean; Taleyarkhan, Rusi P.

2011-01-01

Highlights: → Use of tensioned metastable fluids for detection of fast neutron radiation. → Monitored neutrons with 100% gamma photon blindness capability. → Monitored direction of incoming neutron radiation from special nuclear material emissions. → Ascertained directionality of neutron source to within 30 deg. and with 80% confidence with 2000 detection events at rate of 30-40 per second. → Conducted successful blind test for determining source of neutrons from a hidden neutron emitting source. → Compared results with MCNP5-COMSOL based multi-physics model. - Abstract: Unprecedented capabilities for the detection of nuclear particles via tailored resonant acoustic systems such as the acoustic tensioned metastable fluid detection (ATMFD) systems were assessed for determining directionality of incoming fast neutrons. This paper presents advancements that expand on these accomplishments, thereby increasing the accuracy and precision of ascertaining directionality information utilizing enhanced signal processing-cum-signal analysis, refined computational algorithms, and on demand enlargement of the detector sensitive volume. Advances in the development of ATMFD systems were accomplished utilizing a combination of experimentation and theoretical modeling. Modeling methodologies include Monte-Carlo based nuclear particle transport using MCNP5 and multi-physics based assessments accounting for acoustic, structural, and electromagnetic coupling of the ATMFD system via COMSOL's multi-physics simulation platform. Benchmarking and qualification studies have been conducted with a 1 Ci Pu-Be neutron-gamma source. These results show that the specific ATMFD system used for this study can enable detection of directionality of incoming fast neutrons from the neutron source to within 30 o with 80% confidence; this required ∼2000 detection events which could be collected within ∼50 s at a detection rate of ∼30-40 per second. Blind testing was successfully

Nuclear Physics Research Activity In Vietnam During Period From 2005 To 2007

International Nuclear Information System (INIS)

Tran Duc Thiep

2008-01-01

During the recent years though the difficult conditions as the limit in research budget, the lack in experimental facilities and in manpower, the Nuclear Physics Research in Vietnam still continues to develop and has achieved promising results. This expresses the efforts from the Government as well as from the nuclear physics scientists. In this report we would like to present the Nuclear Physics Research Activity and the achieved results in Vietnam during period from 2005 to 2007 in following directions: Nuclear Reaction and Structure, Nuclear Matter and Nuclear Data, Nuclear Reactor Physics, Nuclear Physics Research based on Accelerators, Physics of Cosmic Rays, Nuclear Physics Related Researches. The report also concerns the problems of manpower, the joining of research institutes in the Country and the expansion of international collaborations in the coming period of the Nuclear Physics Research Activity. The Report was prepared mainly on the basis of the reports that will be presented at the 7th National Conference on Nuclear Science and Technology, held from 30-31 August 2007 in Danang city. (author)

Nuclear energy Division - 2011 Activity report

International Nuclear Information System (INIS)

2012-01-01

This document reports the activity of the Nuclear Energy Department (DEN) within the CEA. It evokes its international relationship (participation to international initiatives, cooperation with different countries), describes the scientific activity within the DEN, presents the Advanced Material Program, and the activities undertaken in different fields: future nuclear industrial systems (fourth generation reactors, downstream part of the future fuel cycle, fundamental scientific and technological research), optimization of the present nuclear industrial activity (second and third generation reactors, nuclear security, upstream and downstream part of the present fuel cycle), tools for nuclear development (numerical simulation, Jules Horowitz reactor), cleaning up and nuclear dismantling (dismantling strategy, the Passage project in Grenoble, works in Marcoule, the Aladin project in Fontenay, waste and material flow management, nuclear support installations, transports). It finally addresses the specific activities of the Marcoule, Cadarache and Saclay centres

Current status and future direction of INPRO (International Project on Innovative Nuclear Reactors and Fuel Cycles)

International Nuclear Information System (INIS)

Omoto, Akira; Moriwaki, Masanao; Sugimoto, Jun; Nakai, Ryodai

2007-01-01

INPRO is an international forum to consider jointly the international and national actions required to achieve desired innovations in nuclear reactors and fuel cycles so as to ensure that nuclear energy is available to contribute to a sustainable development of the human, and IAEA becomes the secretariat for INPRO. The number of the members counts 28 by recent participation of Japan and U.S.A. now, and it is a unique forum to bring together both technology users and technology holders, that includes 5 countries which do not still have nuclear power generation. Until now it was phase I, and focused its activities to make clear the desired characteristics of nuclear energy system toward the future, and to develop methodology to evaluate various nuclear energy systems, but it shifted to phase II from July, 2006, and it planned three areas of activities such as improvement of evaluation methodology, institutional/infrastructure oriented activities and a collaborative project of technology development. Current status and future direction of INPRO was presented to encourage Japan in significant contributions of these three areas. (T. Tanaka)

NEWSdm: Nuclear Emulsions for WIMP Search with directional measurement

Directory of Open Access Journals (Sweden)

Di Crescenzo A.

2017-01-01

Full Text Available Direct Dark Matter searches are nowadays one of the most exciting research topics. Several experimental efforts are concentrated on the development, construction, and operation of detectors looking for the scattering of target nuclei with Weakly Interactive Massive Particles (WIMPs. The measurement of the direction of WIMP-induced nuclear recoils is a challenging strategy to extend dark matter searches beyond the neutrino floor and provide an unambiguous signature of the detection of Galactic dark matter. Current directional experiments are based on the use of gas TPC whose sensitivity is strongly limited by the small achievable detector mass. We present an innovative directional experiment based on the use of a solid target made by newly developed nuclear emulsions and read-out systems reaching a position resolution of the order of 10 nm.

NEWSdm: Nuclear Emulsions for WIMP Search with directional measurement

Science.gov (United States)

Di Crescenzo, A.

2017-12-01

Direct Dark Matter searches are nowadays one of the most exciting research topics. Several experimental efforts are concentrated on the development, construction, and operation of detectors looking for the scattering of target nuclei with Weakly Interactive Massive Particles (WIMPs). The measurement of the direction of WIMP-induced nuclear recoils is a challenging strategy to extend dark matter searches beyond the neutrino floor and provide an unambiguous signature of the detection of Galactic dark matter. Current directional experiments are based on the use of gas TPC whose sensitivity is strongly limited by the small achievable detector mass. We present an innovative directional experiment based on the use of a solid target made by newly developed nuclear emulsions and read-out systems reaching a position resolution of the order of 10 nm.

Evolution of nuclear security regulatory activities in Brazil

International Nuclear Information System (INIS)

Mello, Luiz A. de; Monteiro Filho, Joselio S.; Belem, Lilia M.J.; Torres, Luiz F.B.

2009-01-01

The changing of the world scenario in the last 15 years has increased worldwide the concerns about overall security and, as a consequence, about the nuclear and radioactive material as well as their associated facilities. Considering the new situation, in February 2004, the Brazilian National Nuclear Energy Commission (CNEN), decided to create the Nuclear Security Office. This Office is under the Coordination of Nuclear Safeguards and Security, in the Directorate for Safety, Security and Safeguards (Regulatory Directorate). Before that, security regulation issues were dealt in a decentralized manner, within that Directorate, by different licensing groups in specific areas (power reactors, fuel cycle facilities, radioactive facilities, transport of nuclear material, etc.). This decision was made in order to allow a coordinated approach on the subject, to strengthen the regulation in nuclear/radioactive security, and to provide support to management in the definition of institutional security policies. The CNEN Security Office develops its work based in the CNEN Physical Protection Regulation for Nuclear Operational Units - NE-2.01, 1996, the Convention on the Physical Protection of Nuclear Material and the IAEA Nuclear Security Series . This paper aims at presenting the activities developed and the achievements obtained by this new CNEN office, as well as identifying the issues and directions for future efforts. (author)

Termination of past nuclear activities at the nuclear research institute

International Nuclear Information System (INIS)

Janzekovic, H.; Krizman, M.

2006-01-01

Many countries, particularly in Europe, started with nuclear programs in the fifties of the last century. As a consequence nuclear research institutes were established, among them also the Institute Jozef Stefan (IJS) in Slovenia. The nuclear activities at the IJS were related to the development of uranium ore processing technology and technologies comprising uranium oxide and hexafluoride. After very intensive period of nuclear activities the decline began step by step due to different reasons. Various approaches of the termination and decommissioning of facilities were used. The inspectors of the Slovenian Nuclear Safety Administration (SNSA), the responsible authority, started intensive activities at the IJS at the end of 2004. All together 22 research laboratories or research units were included in the inspection program and around 50 researchers of the IJS were involved into the inspection procedures. The inspection was very intensive in the laboratories and storages where past nuclear activities took place and were later on abandoned. As a result several contaminated equipments and sites in addition to around 200 unregistered sources were found. The majority of these sources is related to past nuclear activities. The inspection program related to the terminated research activities is still in progress. The IJS immediately started with the remediation activities including the development of methodology related to decontamination of radioactive liquids. The decontamination of two nuclear laboratories and three different storages of radioactive waste at its sites is in progress. Sixty of the above mentioned sources have been already stored in the Central Interim Storage for Radioactive Waste. (author)

Research and Production Corporation Radiy activities within Canadian nuclear market

International Nuclear Information System (INIS)

Bakhmach, I.; Siora, O.; Kharchenko, V.; Sklyar, V.; Andrashov, A.

2011-01-01

This paper presents key results of RPC Radiy activities within Canadian nuclear market. RPC Radiy (located in Kirovograd, Ukraine) is a vendor which designs and produces digital safety I and C platform as well as turnkey applications, based on the platform, for NPPs (safety systems). The main feature of the Radiy Platform is the application of Field Programmable Gates Arrays (FPGA) as programmable components for logic control operations. Since 2009 RPC Radiy started to explore the possibility to conduct the expansion to Canadian nuclear market. The activities performed by RPC Radiy related to this direction are resulted in several joint projects with Canadian companies. (author)

Future financial liabilities of nuclear activities

International Nuclear Information System (INIS)

1996-01-01

This report deals with future financial liabilities arising from nuclear activities, in particular electricity generation. Future financial liabilities are defined as costs which an organisation or company is expected to meet beyond some five years as a consequence of its current and past activities. The study provides a comprehensive picture on policies for recognizing and funding future financial liabilities arising from nuclear activities and their implementation schemes in Nea Member countries. Mechanisms for reporting and funding future financial liabilities are described, analysed and compared. The report offers some findings, conclusions and recommendations for consideration by Member countries. The nuclear activities considered in the report include nuclear research and development, nuclear industry sectors such as uranium mining and milling, conversion and enrichment, nuclear fuel fabrication, nuclear power plant operation and maintenance, and radioisotopes production. Future financial liabilities arising from these activities cover management and disposal of radioactive wastes, reprocessing of spent fuels when applicable and decommissioning of facilities at the end of their life time. 12 refs., 14 figs., 16 tabs

Program plan for future regulatory activity in nuclear-power-plant maintenance

International Nuclear Information System (INIS)

Badalamente, R.V.

1982-10-01

The intent of this paper is to describe the results of a study of nuclear power plant (NPP) maintenance conducted by Battelle's Pacific Northwest Laboratories (PNL) for the Nuclear Regulatory Commission (NRC). The purpose of the study for the NRC was to determine problems affecting human performance in NPP maintenance, pinpoint those which adversely affect public health and safety, review strategies for overcoming the problems, and suggest the direction that regulatory activities should take. Results of the study were presented to the NRC (Division of Human Factors Safety) in the form of a recommended program plan for future regulatory activity in NPP maintenance

Military nuclear activities. Strategic prospects

International Nuclear Information System (INIS)

Coldefy, Alain; Wodka-Gallien, Philippe; Tertrais, Bruno; Rouillard, Gwendal; Widemann, Thierry; Guillaume, Louis-Michel; Steininger, Philippe; Guillemette, Alain; Amabile, Jean-Christophe; Granger-Veyron, Nicolas; Carbonnieres, Hubert de; Roche, Nicolas; Guillou, Herve; Bouvier, Antoine; Pastre, Bertrand; Baconnet, Alexis; Monsonis, Guillem; Brisset, Jean-Vincent; Hemez, Remy; Tchernega, Vladimir; Wedin, Lars; Dumoulin, Andre; Razoux, Pierre; Migault, Philippe; Wilson, Ward; Maillard, Benjamin de; Aichi, Leila; Charvoz, Ivan; Rousset, Valery; Lespinois, Jerome de; Kempf, Olivier; Dufourcq, Jean; Gere, Francois; Mauro, Frederic; Delort Laval, Gabriel; Charaix, Patrick; Norlain, Bernard; Collin, Jean-Marie; Jourdier, Francois

2015-01-01

This special dossier aims at providing some key articles about France's deterrence doctrine. It provides a comprehensive overview of the challenges and questions about military nuclear activities and opens up some future prospects about this question. The dossier comprises 37 papers dealing with: 1 - Military nuclear activities: yesterday, today, tomorrow (Coldefy, A.); 2 - Deterrence according to French President Francois Hollande: continuation, precision and inflexions (Tertrais, B.); 3 - French deterrence warrantor of our independence in the 21. century (Rouillard, G.); 4 - The deterrence concept prior to the nuclear weapon era (Widemann, T.); 5 - France: the strategic marine force in operation (Guillaume, L.M.); 6 - Relevance of the airborne component in the nuclear deterrence strategy (Steininger, P.); 7 - Deterrence stakes for the Directorate General of Armaments (Guillemette, A.); 8 - The Charles-de-Gaulle aircraft carrier: the deterrence voice from the sea (Wodka-Gallien, P.); 9 - Deterrence: missions of the army's radiation protection department (Amabile, J.C.; Granger-Veyron, N.; Carbonnieres, H. de); 10 - The French Atomic Energy Commission (CEA) and the French defense strategy (Roche, N.); 11 - DCNS, general contractor in the service of deterrence (Guillou, H.); 12 - The airborne nuclear component for MBDA (Bouvier, A.); 13 - Ballistic missile of the marine nuclear component: industrial stakes (Pastre, B.); 14 - Beyond defense against missiles: a US anti-deterrence strategy (Baconnet, A.); 15 - Deterrence dynamics in South Asia (Monsonis, G.); 16 - Military nuclear activities in East Asia (Brisset, J.V.); 17 - North Korea would own nuclear weapons, so what? (Hemez, R.); 18 - About the risk of nuclear warfare in Europe (Tchernega, V.); 19 - Present day nuclear activities: deterrence and gesticulation (Wedin, L.); 20 - Belgian F-16 replacement: nuclear dimension (Dumoulin, A.); 21 - Israel and nuclear deterrence (Razoux, P.); 22 - Nuclear

Status of nuclear data activities in Korea

Energy Technology Data Exchange (ETDEWEB)

Lee, Young-Ouk; Chang, Jonghwa [Nuclear Data Evaluation Lab., Korea Atomic Energy Research Inst., Yusung, Taejon 305-600 (Korea, Republic of)

1998-03-01

Although nuclear data activities in Korea are still in the early stage, considerable demands for more accurate and wide-range nuclear data from nuclear R and D fields activated a new nuclear data project titled as `Development of Nuclear Data System`. It was launched this year as one of nation-wide long-term nuclear R and D programs in Korea for the next decade. Its main goals are (1) to establish nuclear data system, (2) to build up the infra-structure for utilization of nuclear data and (3) to develop highly reliable nuclear data system. To achieve these goals, international cooperation and cultivation of human resource as well as construction of measurement facilities will be indispensable. This report briefly describes the demands of nuclear data from the nuclear R and D programs, current nuclear data activities and future plan with its strategy. (author)

Status of nuclear data activities in Korea

International Nuclear Information System (INIS)

Lee, Young-Ouk; Chang, Jonghwa

1998-01-01

Although nuclear data activities in Korea are still in the early stage, considerable demands for more accurate and wide-range nuclear data from nuclear R and D fields activated a new nuclear data project titled as 'Development of Nuclear Data System'. It was launched this year as one of nation-wide long-term nuclear R and D programs in Korea for the next decade. Its main goals are 1) to establish nuclear data system, 2) to build up the infra-structure for utilization of nuclear data and 3) to develop highly reliable nuclear data system. To achieve these goals, international cooperation and cultivation of human resource as well as construction of measurement facilities will be indispensable. This report briefly describes the demands of nuclear data from the nuclear R and D programs, current nuclear data activities and future plan with its strategy. (author)

The challenges and directions for nuclear energy policy in Japan. Japan's nuclear energy national plan

International Nuclear Information System (INIS)

Yanase, Tadao

2007-01-01

According to the 'framework for nuclear energy policy' (October, 2005 adopted by cabinet), basic goals of nuclear policy are (1) for nuclear energy to continue to meet more than around 30-40% of electricity supply, and also (2) to further promote a fuel cycle steadily aiming at commercial introduction of a fast breeder by 2050. In order to realize an aim of this framework for nuclear energy policy', the nuclear energy subcommittee of the METI advisory committee deliberated concrete actions and the subcommittee recommendations were drawn up as 'Japan's nuclear energy national plan' in August, 2006 and incorporated as main part of the revised 'basic plan on energy' adopted by the cabinet in March 2007. Backgrounds and directions of future actions for nuclear energy policy were described. (T. Tanaka)

Using Direct Sub-Level Entity Access to Improve Nuclear Stockpile Simulation Modeling

Energy Technology Data Exchange (ETDEWEB)

Parker, Robert Y. [Brigham Young Univ., Provo, UT (United States)

1999-08-01

Direct sub-level entity access is a seldom-used technique in discrete-event simulation modeling that addresses the accessibility of sub-level entity information. The technique has significant advantages over more common, alternative modeling methods--especially where hierarchical entity structures are modeled. As such, direct sub-level entity access is often preferable in modeling nuclear stockpile, life-extension issues, an area to which it has not been previously applied. Current nuclear stockpile, life-extension models were demonstrated to benefit greatly from the advantages of direct sub-level entity access. In specific cases, the application of the technique resulted in models that were up to 10 times faster than functionally equivalent models where alternative techniques were applied. Furthermore, specific implementations of direct sub-level entity access were observed to be more flexible, efficient, functional, and scalable than corresponding implementations using common modeling techniques. Common modeling techniques (''unbatch/batch'' and ''attribute-copying'') proved inefficient and cumbersome in handling many nuclear stockpile modeling complexities, including multiple weapon sites, true defect analysis, and large numbers of weapon and subsystem types. While significant effort was required to enable direct sub-level entity access in the nuclear stockpile simulation models, the enhancements were worth the effort--resulting in more efficient, more capable, and more informative models that effectively addressed the complexities of the nuclear stockpile.

Activities in the field of nuclear reactor instrumentation and control in Poland - 1991 status

International Nuclear Information System (INIS)

Mikulski, A.T.

1992-01-01

The report gives a condensed overview of activity in the field of nuclear reactor instrumentation and control in Poland over the last few years. The work was performed parallel in two directions related to the construction of the first Nuclear Power Plant at Zarnowlec and to the changes made for two research reactors at Swierk. The first direction, according to government decision, was cancelled at the end of 1990 and the results obtained up to now are briefly summarized. The second one is in progress, some minor changes in I and C for the EWA reactor and significant improvements for the MARIA reactor are under way. The results of this activity are presented. (author). 6 refs

Directions in U. S. nuclear regulatory policy

International Nuclear Information System (INIS)

Rogers, Kenneth C.

1991-01-01

The future of nuclear power is optimistic, but only if we each learn from our past mistakes - and from each other's past mistakes and take corrective actions. Only if we apply the highest standard of performance to every nuclear activity. I believe meetings such as this are an important forum for exchanging information that can result in improved standards of performance throughout the world.

Artificial intelligence in nuclear engineering: developments, lesson learned and future directions

Energy Technology Data Exchange (ETDEWEB)

Ruan, Da [The Belgian Nuclear Research Centre (SCK.CEN), Mol (Belgium)]. E-mail: druan@sckcen.be

2005-07-01

Full text of publication follows: In this lecture, an overview on artificial intelligence (AI) from control to decision making in nuclear engineering will be given mainly based on the 10 years progress of the FLINS forum (Fuzzy Logic and Intelligent Technology in Nuclear Science). Some FLINS concrete examples on nuclear reactor operation, nuclear safeguards information management, and cost estimation under uncertainty for a large nuclear project will be illustrated for the potential use of AI in nuclear engineering. Recommendations and future research directions on AI in nuclear engineering will be suggested from a practical point of view. (author)

Artificial intelligence in nuclear engineering: developments, lesson learned and future directions

International Nuclear Information System (INIS)

Ruan, Da

2005-01-01

Full text of publication follows: In this lecture, an overview on artificial intelligence (AI) from control to decision making in nuclear engineering will be given mainly based on the 10 years progress of the FLINS forum (Fuzzy Logic and Intelligent Technology in Nuclear Science). Some FLINS concrete examples on nuclear reactor operation, nuclear safeguards information management, and cost estimation under uncertainty for a large nuclear project will be illustrated for the potential use of AI in nuclear engineering. Recommendations and future research directions on AI in nuclear engineering will be suggested from a practical point of view. (author)

Direct interaction in nuclear reactions: a theory

International Nuclear Information System (INIS)

Dominicis, C.T. de

1959-01-01

General treatment of the foundations of direct interaction in nuclear reactions; representation of the instantaneous elastic scattering amplitude by the scattering amplitude due to a complex potential; expansion of the instantaneous inelastic scattering amplitude and discussion of the 1. Bohr approximation (distorted waves) contribution to individual and collective states of excitation. (author) [fr

Nuclear Energy Division. 2009 Activity report

International Nuclear Information System (INIS)

2009-01-01

After a presentation of the future investment programme of the nuclear energy department at the French national Nuclear Research Center (CEA), this report proposes a description of tomorrow's industrial nuclear systems (back-end of future fuel cycle, fourth generation systems, basic scientific and technological research), describes how current nuclear industrial systems are optimized (front-end and back-end of fuel cycle, second and third generation reactors). It presents the main tools for nuclear development: simulation programme, the Jules Horowitz reactor project, maintenance of specific facilities, research valorisation. It reports the activities related to the clean-up and dismantling in different nuclear sites, presents the activities of CEA's nuclear research centres (Saclay, Cadarache, Marcoule), briefly presents the transverse material programme, recalls some events, and gives some key figures

Nuclear power development and nuclear data activities in Malaysia

International Nuclear Information System (INIS)

Gui Ah Auu

1999-01-01

In this paper, research activities on nuclear power requirement carried out jointly by MINT and other organizations are described. Also discussed are activities on neutronics such as TRIGA reactor fuel management, storage pool criticality, and reactor fuel transfer cask calculations. In addition, recent work on radiation transport activities in MINT such as skyshine and photon phantom dose calculations using the MCNP and MRIPP computer codes are presented. Finally, nuclear data measurement works by researchers in Malaysian universities are described. (author)

Nuclear power development and nuclear data activities in Malaysia

Energy Technology Data Exchange (ETDEWEB)

Gui Ah Auu [Malaysian Institute for Nuclear Technology Research, Ministry of Science, Technology and the Environment, Selangor (Malaysia)

1999-03-01

In this paper, research activities on nuclear power requirement carried out jointly by MINT and other organizations are described. Also discussed are activities on neutronics such as TRIGA reactor fuel management, storage pool criticality, and reactor fuel transfer cask calculations. In addition, recent work on radiation transport activities in MINT such as skyshine and photon phantom dose calculations using the MCNP and MRIPP computer codes are presented. Finally, nuclear data measurement works by researchers in Malaysian universities are described. (author)

CEA nuclear energy Directorate - Activity report 2012

International Nuclear Information System (INIS)

2013-01-01

After an overview of the activities of the Directorate at the international level, of its scientific activities, and of the consideration given to quality, and a presentation of the transverse program on advanced materials, this report proposes presentations of activities in different domains: future nuclear industrial systems (reactors of 4. generation, back-end of the future cycle, sustainable management of nuclear materials, fundamental scientific and technological research), optimization of the present industrial nuclear activity (reactors of 2. and 3. generation, front-end and back-end of the fuel cycle), the main tools for nuclear development (numerical simulation, the Jules Horowitz reactor), valorisation, economic support of Haute-Marne and Meuse territories (the Syndiese project), nuclear dismantling and decontamination (dismantling projects, projects and works in Fontenay-aux-Roses, Grenoble and Saclay, waste and material flow management, nuclear service facilities, transports). It also presents the activities of some specific CEA centres like Marcoule (R and D in fuel cycle), Cadarache (future energies) and Saclay (nuclear sciences and simulation of reactors and fuel cycle)

Overview of nuclear data activities at the OECD Nuclear Energy Agency

International Nuclear Information System (INIS)

Michel-Sendis, F.; Dupont, E.; Gulliford, J.; Nordborg, G.

2011-01-01

The Nuclear Energy Agency (NEA) is a specialised agency within the Organisation for Economic Co-operation and Development (OECD). The mission of the NEA is to assist its member countries in maintaining and further developing, through international co-operation, the scientific, technological and legal bases required for the safe, environmentally friendly and economical use of nuclear energy for peaceful purposes. All activities relevant to nuclear data measurements, evaluations and applications are managed by the NEA Nuclear Science Committee through the Nuclear Science section and the Data Bank, which work closely together. This paper gives an overview of current and planned nuclear data activities at the Nuclear Energy Agency through the program of work of the Data Bank in general and of the NEA Working Party on international nuclear data Evaluation Co-operation (WPEC) in particular. (authors)

Regulation of nuclear and radiological activities; Reglementarea activitatilor nucleare si radiologice

Energy Technology Data Exchange (ETDEWEB)

Sidorencu, Angela; Vasilieva, Natalia; Buzdugan, Artur; Balan, Ionel [Agentia Nationala de Reglementare a Activitatilor Nucleare si Radiologice, Alecu Russo, 1, MD 2068, Chisinau (Moldova, Republic of)

2012-08-15

The paper presents a review of the Moldovan regulatory framework regarding nuclear and radiological activities and of the competence of state regulatory authority - the National Agency for the Regulation of Nuclear and Radiological Activities.

Defining the Strategy of Nuclear Activity

International Nuclear Information System (INIS)

Racana, R.

2006-01-01

This article presents nuclear activity as defined within the field of the nuclear industry, which is studied from its capacity to generate electric power to its application in industry and medicine as well as a source for weapons of mass destruction. These fields of analysis introduce some problems that the nuclear activity itself must know how to confront employing action strategies aimed at becoming an activity to be kept in mind when making use of the benefits that its peaceful use contributes to human life. (Author)

Nuclear power company activity based costing management analysis

International Nuclear Information System (INIS)

Xu Dan

2012-01-01

With Nuclear Energy Industry development, Nuclear Power Company has the continual promoting stress of inner management to the sustainable marketing operation development. In view of this, it is very imminence that Nuclear Power Company should promote the cost management levels and built the nuclear safety based lower cost competitive advantage. Activity based costing management (ABCM) transfer the cost management emphases from the 'product' to the 'activity' using the value chain analysis methods, cost driver analysis methods and so on. According to the analysis of the detail activities and the value chains, cancel the unnecessary activity, low down the resource consuming of the necessary activity, and manage the cost from the source, achieve the purpose of reducing cost, boosting efficiency and realizing the management value. It gets the conclusion from the detail analysis with the nuclear power company procedure and activity, and also with the selection to 'pieces analysis' of the important cost related project in the nuclear power company. The conclusion is that the activities of the nuclear power company has the obviously performance. It can use the management of ABC method. And with the management of the procedure and activity, it is helpful to realize the nuclear safety based low cost competitive advantage in the nuclear power company. (author)

Cdk1 Activates Pre-Mitotic Nuclear Envelope Dynein Recruitment and Apical Nuclear Migration in Neural Stem cells

Science.gov (United States)

Baffet, Alexandre D.; Hu, Daniel J.; Vallee, Richard B.

2015-01-01

Summary Dynein recruitment to the nuclear envelope is required for pre-mitotic nucleus-centrosome interactions in nonneuronal cells, and for apical nuclear migration in neural stem cells. In each case, dynein is recruited to the nuclear envelope (NE) specifically during G2, via two nuclear pore-mediated mechanisms involving RanBP2-BicD2 and Nup133-CENP-F. The mechanisms responsible for cell cycle control of this behavior are unknown. We now find that Cdk1 serves as a direct master controller for NE dynein recruitment in neural stem cells and HeLa cells. Cdk1 phosphorylates conserved sites within RanBP2 and activates BicD2 binding and early dynein recruitment. Late recruitment is triggered by a Cdk1-induced export of CENP-F from the nucleus. Forced NE targeting of BicD2 overrides Cdk1 inhibition, fully rescuing dynein recruitment and nuclear migration in neural stem cells. These results reveal how NE dynein recruitment is cell cycle regulated, and identify the trigger mechanism for apical nuclear migration in the brain. PMID:26051540

Direct reading spectrochemical analysis of nuclear graphite

International Nuclear Information System (INIS)

Roca Adell, M.; Becerro Ruiz, E.; Alvarez Gonzalez, F.

1964-01-01

A description is given about the application of a direct-reading spectrometer the Quantometer, to the determination of boron. calcium, iron, titanium and vanadium in nuclear grade graphite. for boron the powdered sample is mixed with 1% cupric fluoride and excited in a 10-amperes direct current arc and graphite electrodes with a crater 7 mm wide and 10 mm deep. For the other elements a smaller crater has been used and dilution with a number of matrices has been investigated; the best results are achieved by employing 25% cupric fluoride. The sensitivity limit for boron is 0,15 ppm. (Author) 21 refs

Nuclear legislation: analytical study. Regulatory and institutional framework for nuclear activities

International Nuclear Information System (INIS)

2001-01-01

Australia' s basic legislation in the nuclear field consists in five Acts passed by the Federal Parliament. These Acts are as follow: the South Pacific nuclear free zone treaty Act; the nuclear non-proliferation act; the Australian nuclear science and technology organisation act; the Australian nuclear science and technology organisation amendment act; the radiation protection and nuclear safety act. The two first Acts were prompted by the need for domestic legislation to implement Australia 's international obligations. The third arose from a long-standing recognition that the Atomic energy Act was inappropriate as the legislative basis for the activities of Australia 's national nuclear organisation. For its part the fourth Act introduced some necessary changes into the Australian nuclear science and technology organisation Act. Finally, the fifth act establishes a regime to regulate the operation of nuclear installations and the management of radiation sources, where the activities are undertaken by Commonwealth entities. Each of these Acts is discussed in more details in this work. (N.C.)

Nuclear Activities (Prohibitions) Act 1983

International Nuclear Information System (INIS)

1983-01-01

The purpose of this Act is to protect the health and safety of the people of Victoria and its environment by prohibiting nuclear activities from being carried out and regulating the possession of certain nuclear material in a manner consistent with assisting Australia in meeting its international nuclear non-proliferation objectives. (NEA) [fr

Strengthened International Nuclear Safeguards; burdens and Effects on Nuclear Technology Development

International Nuclear Information System (INIS)

Badawy, I.

2000-01-01

The present paper deals with the recent direction of strengthening the international nuclear safeguards and the effects on the development of nuclear technology for peaceful applications. The new basic principles for strengthening the international nuclear control in the direction of undeclared nuclear activities are elaborated, and the national obligations are indicated. The burdens on the development of nuclear technology are discussed. Approaches are proposed in this work for coping with the present and future situations

Transparency of nuclear regulatory activities

International Nuclear Information System (INIS)

2007-01-01

One of the main missions of nuclear regulators is to protect the public, and this cannot be completely achieved without public confidence. The more a regulatory process is transparent, the more such confidence will grow. Despite important cultural differences across countries, a number of common features characterise media and public expectations regarding any activity with an associated risk. A common understanding of transparency and main stakeholders' expectations in the field of nuclear safety were identified during this workshop, together with a number of conditions and practices aimed at improving the transparency of nuclear regulatory activities. These conditions and practices are described herein, and will be of particular interest to all those working in the nuclear regulatory field. Their implementation may, however, differ from one country to another depending on national context. (authors)

Directions for nuclear research in the transplutonium elements

International Nuclear Information System (INIS)

Wilhelmy, J.B.; Chasman, R.R.; Friedman, A.M.; Ahmad, I.

1983-01-01

The study of the heavy nuclides has played a vital role in our understanding of the alpha decay process, nuclear fission, nuclear binding energies and the limits of nuclear stability. This study has led to the understanding of novel shape degrees of freedom, such as the very large quadrupole deformations associated with the fission isomer process, and the very recently discovered octupole deformation. The existence of these unique phenomena in the heavy element region is not accidental. Fission isomerism is due to the delicate balance between nuclear forces holding the nucleus together and Coulomb forces causing nuclear fission. Octupole deformation arises from the increasing strength of matrix elements with increasing oscillator shell. Both illustrate the unique features of the heavy element region. Fission studies have given us information about large collective aspects in nuclei and the importance that nuclear structural effects can play in altering these macro properties. A new class of atomic studies has become possible with the availability of heavy elements. With these isotopes, we are now able to produce electric fields of such magnitude that it becomes possible to spontaneously create positron-electron pairs in the vacuum. We have organized this presentation into three major sections: nuclear structure, fission studies and atomic studies of supercritical systems. In each we will try to emphasize the new directions which can benefit from the continued availability of isotopes supplied by the Trans-plutonium Production Program. 117 references

Methodology and conclusions of activation calculations of WWER-440 type nuclear power plants

Energy Technology Data Exchange (ETDEWEB)

Babcsány, Boglárka, E-mail: boglarka.babcsany@reak.bme.hu; Czifrus, Szabolcs; Fehér, Sándor

2015-04-01

Highlights: • Activation calculation of two WWER-440 type nuclear power plants. • Detailed description of the applied activation calculation methodology. • Graphical results for total activity and waste index categorization. • General conclusions for activation applicable in the case of PWR reactors. - Abstract: Activation calculations for two nuclear power plants of WWER-440 type have been performed by the authors in order to assist the decommissioning planning by assessing the radioactive inventory present at the time of and at different times after the final shutdown. According to related international literature and studies performed earlier by the authors, considering the activity more than 99% of this inventory is concentrated in the materials directly surrounding the reactor core, where the predominant evolution of radionuclides is generated by neutron induced nuclear reactions. In order to obtain the highest possible accuracy in modelling, three-dimensional Monte Carlo neutron transport calculations were performed. Besides the methods and models applied to these analyses, the paper also summarizes the results that can be generally applied to such nuclear power plant types. At the time of shutdown, the total activity of the stainless steel components is about 6 × 10{sup 16} Bq and 1.3 × 10{sup 17} Bq for the two NPPs considered. The biological shielding concrete constitutes approximately 7 × 10{sup 13} Bq and 1.1 × 10{sup 14} Bq.

The juridical issues of nuclear activities

International Nuclear Information System (INIS)

Guillaume, M.; Kerever, A.; Pasquier, J.L.; Brillanceau, F.; Besson, J.P.; Chaumette, L.; Niel, J.C.; Reculeau, Y.; Treflez, M.; Pezennec, D.; Cochaud, J.F.; Phan Van, L.; Cormis, F. de; Galmot, Y.; Saint-Raymond, P.; Blanchard, P.; Robert, J.H.

1997-01-01

This issue is dedicated to the juridical aspects of civil nuclear activities. It comprises 3 parts and 16 papers. Radiation protection law is dealt with in part 1: prevention of risks due to ionizing radiations in occupational environment; sources and men; the regulation of radioactive materials transport; the regulation of the rejection of gaseous and liquid radioactive effluents. Part 2 tackles the question of checking the pacific uses of nuclear energy, that is the juridical consequences of the non-proliferation and physical protection policies are reviewed: international efforts that aim to limit the military uses of nuclear energy; the juridical and practical aspects of non-proliferation rules and international controls; the national control of radioactive materials. The juridical framing of nuclear activities, nuclear civil liability and infraction of the law are gathered in part 3: the CIINB and its contribution to the safety of nuclear installations; the mining law; the control of nuclear installations safety; the influence of the realization of the nuclear program on the evolution of the French law; the intervention of the administrative judge in nuclear affairs; the protection of population against nuclear risk - statement of existing provisions and new trends; the special regime of the civil nuclear responsibility - at the time of change; the penal infractions of the nuclear law. (J.S.)

General overview of nuclear activities in Morocco

International Nuclear Information System (INIS)

Karouani, K.

1998-01-01

Nuclear activities have been introduced in Morocco since the early seventies. These activities concern the utilization of nuclear techniques in medicine, food and agriculture as well as training and research in nuclear physics. In 1984, Morocco decided to undertake a technical and economic feasibility study as well as the site study of the first nuclear power plant. Two years after, he decided to create the ''Centre National de l'Energie des Sciences et des Techniques Nucleaires'' as a technical and research support for the nuclear power program and as a promoting institute of nuclear techniques. Obviously, he also decided to set up a regulatory framework. (author)

A study on the long-term nuclear policy direction responding the changes of international and domestic nuclear situation

International Nuclear Information System (INIS)

Kim, Hyun Jun; Yang, M. H.; Lee, B. O.; Ham, C. H.; Chung, W. S.; Lee, T. J.; Yun, S. W.; Ko, H. S.; Nha, K. H.

1998-06-01

The long-term nuclear policy directions are proposed with three aspects of nuclear technology development policy, nuclear regulatory policy, and tasks required for promoting pro-nuclear movement. Several nuclear technology areas, such as technology for the improvement of nuclear economics, safety enhancement technology, radwaste, treatment/disposal technology, fuel cycle technology, and proliferation-resistant nuclear technology, fuel recycle technology, and proliferation-resistant nuclear technology, appear very important in the future nuclear technology development policy. Nuclear regulation policy should be established with balancing between public safety and expansion of nuclear industry. Objective of nuclear regulation should be recognized not to collapse a nuclear industry, and the worth of nuclear regulatory regime may be also meaningful if nuclear industry can be well developed. It should be necessary to make a proper atmosphere that can resolve revealed or potential problems and issues against the harmonious implementation of nuclear policy. For the purpose, nuclear policy should contain certain policies to promote a nuclear development, such as social policy, international cooperation strategy, and national resource allocation policy. (author). 20 refs., 8 tabs., 5 figs

IRAK2 directs stimulus-dependent nuclear export of inflammatory mRNAs.

Science.gov (United States)

Zhou, Hao; Bulek, Katarzyna; Li, Xiao; Herjan, Tomasz; Yu, Minjia; Qian, Wen; Wang, Han; Zhou, Gao; Chen, Xing; Yang, Hui; Hong, Lingzi; Zhao, Junjie; Qin, Luke; Fukuda, Koichi; Flotho, Annette; Gao, Ji; Dongre, Ashok; Carman, Julie A; Kang, Zizhen; Su, Bing; Kern, Timothy S; Smith, Jonathan D; Hamilton, Thomas A; Melchior, Frauke; Fox, Paul L; Li, Xiaoxia

2017-10-09

Expression of inflammatory genes is determined in part by post-transcriptional regulation of mRNA metabolism but how stimulus- and transcript-dependent nuclear export influence is poorly understood. Here, we report a novel pathway in which LPS/TLR4 engagement promotes nuclear localization of IRAK2 to facilitate nuclear export of a specific subset of inflammation-related mRNAs for translation in murine macrophages. IRAK2 kinase activity is required for LPS-induced RanBP2-mediated IRAK2 sumoylation and subsequent nuclear translocation. Array analysis showed that an SRSF1-binding motif is enriched in mRNAs dependent on IRAK2 for nuclear export. Nuclear IRAK2 phosphorylates SRSF1 to reduce its binding to target mRNAs, which promotes the RNA binding of the nuclear export adaptor ALYREF and nuclear export receptor Nxf1 loading for the export of the mRNAs. In summary, LPS activates a nuclear function of IRAK2 that facilitates the assembly of nuclear export machinery to export selected inflammatory mRNAs to the cytoplasm for translation.

IAEA activity related to safety of nuclear desalination

International Nuclear Information System (INIS)

Gasparini, M.

2000-01-01

The nuclear plants for desalination to be built in the future will have to meet the standards of safety required for the best nuclear power plants currently in operation or being designed. The current safety approach, based on the achievement of the fundamental safety functions and defence in depth strategy, has been shown to be a sound foundation for the safety and protection of public health, and gives the plant the capability of dealing with a large variety of sequences, even beyond the design basis. The Department of Nuclear Safety of the IAEA is involved in many activities, the most important of which are to establish safety standards, and to provide various safety services and technical knowledge in many Technical Co-operation assistance projects. The department is also involved in other safety areas, notably in the field of future reactors. The IAEA is carrying out a project on the safety of new generation reactors, including those used for desalination, with the objective of fostering an exchange of information on safety approaches, promoting harmonization among Member States and contributing towards the development and revision of safety standards and guidelines for nuclear power plant design. The safety, regulatory and environmental concerns in nuclear powered desalination are those related directly to nuclear power plants, with due consideration given to the coupling process. The protection of product water against radioactive contamination must be ensured. An effective infrastructure, including appropriate training, a legal framework and regulatory regime, is a prerequisite to considering use of nuclear power for desalination plants, also in those countries with limited industrial infrastructures and little experience in nuclear technology or safety. (author)

Small Reactor Designs Suitable for Direct Nuclear Thermal Propulsion: Interim Report

International Nuclear Information System (INIS)

Schnitzler, Bruce G.

2012-01-01

open loop systems for direct nuclear thermal propulsion. Although a number of fast spectrum reactor and engine designs suitable for direct nuclear thermal propulsion were proposed and designed, none were built. This report summarizes status results of evaluations of small nuclear reactor designs suitable for direct nuclear thermal propulsion.

Nuclear analytical chemistry

Energy Technology Data Exchange (ETDEWEB)

Brune, D.; Forkman, B.; Persson, B.

1984-01-01

This book covers the general theories and techniques of nuclear chemical analysis, directed at applications in analytical chemistry, nuclear medicine, radiophysics, agriculture, environmental sciences, geological exploration, industrial process control, etc. The main principles of nuclear physics and nuclear detection on which the analysis is based are briefly outlined. An attempt is made to emphasise the fundamentals of activation analysis, detection and activation methods, as well as their applications. The book provides guidance in analytical chemistry, agriculture, environmental and biomedical sciences, etc. The contents include: the nuclear periodic system; nuclear decay; nuclear reactions; nuclear radiation sources; interaction of radiation with matter; principles of radiation detectors; nuclear electronics; statistical methods and spectral analysis; methods of radiation detection; neutron activation analysis; charged particle activation analysis; photon activation analysis; sample preparation and chemical separation; nuclear chemical analysis in biological and medical research; the use of nuclear chemical analysis in the field of criminology; nuclear chemical analysis in environmental sciences, geology and mineral exploration; and radiation protection.

Nuclear analytical chemistry

International Nuclear Information System (INIS)

Brune, D.; Forkman, B.; Persson, B.

1984-01-01

This book covers the general theories and techniques of nuclear chemical analysis, directed at applications in analytical chemistry, nuclear medicine, radiophysics, agriculture, environmental sciences, geological exploration, industrial process control, etc. The main principles of nuclear physics and nuclear detection on which the analysis is based are briefly outlined. An attempt is made to emphasise the fundamentals of activation analysis, detection and activation methods, as well as their applications. The book provides guidance in analytical chemistry, agriculture, environmental and biomedical sciences, etc. The contents include: the nuclear periodic system; nuclear decay; nuclear reactions; nuclear radiation sources; interaction of radiation with matter; principles of radiation detectors; nuclear electronics; statistical methods and spectral analysis; methods of radiation detection; neutron activation analysis; charged particle activation analysis; photon activation analysis; sample preparation and chemical separation; nuclear chemical analysis in biological and medical research; the use of nuclear chemical analysis in the field of criminology; nuclear chemical analysis in environmental sciences, geology and mineral exploration; and radiation protection

Atmospheric Direct Uptake and Long-term Fate of Radiocesium in Trees after the Fukushima Nuclear Accident

Science.gov (United States)

Mahara, Yasunori; Ohta, Tomoko; Ogawa, Hideki; Kumata, Atsushi

2014-11-01

Large areas of forests were radioactively contaminated by the Fukushima nuclear accident of 2011, and forest decontamination is now an important problem in Japan. However, whether trees absorb radioactive fallout from soil via the roots or directly from the atmosphere through the bark and leaves is unclear. We measured the uptake of radiocesium by trees in forests heavily contaminated by the Fukushima nuclear accident. The radiocesium concentrations in sapwood of two tree species, the deciduous broadleaved konara (Quercus serrata) and the evergreen coniferous sugi (Cryptomeria japonica), were higher than that in heartwood. The concentration profiles showed anomalous directionality in konara and non-directionality in sugi, indicating that most radiocesium in the tree rings was directly absorbed from the atmosphere via bark and leaves rather than via roots. Numerical modelling shows that the maximum 137Cs concentration in the xylem of konara will be achieved 28 years after the accident. Conversely, the values for sugi will monotonously decrease because of the small transfer factor in this species. Overall, xylem 137Cs concentrations will not be affected by root uptake if active root systems occur 10 cm below the soil.

1984 Act on nuclear activities (1984:3)

International Nuclear Information System (INIS)

1984-01-01

This 1984 Act on Nuclear Activities (1984:3) replaces the 1956 Atomic Energy Act as well as the 1977 Act on special permits to charge nuclear reactors with nuclear fuel and the 1980 Act on Public Insight into the Safety Work at Nuclear Power Plants. Like the 1956 Act, the 1984 Act in a safety legislation, which is based on a system of licensing conditions and supervision. According to the fundamental provisions of the 1984 Act, nuclear activities should be conducted in such a way as to meet safety requirements and fulfil the obligations that follow from Sweden's international agreements for the purpose of preventing the proliferation of nuclear weapons. (NEA) [fr

Nuclear data for proton activation analysis

Energy Technology Data Exchange (ETDEWEB)

Mukhammedov, S; Vasidov, A [Institute of Nuclear Physics of Academy of Sciences of Uzbekistan, 702132 Ulugbek, Tashkent (Uzbekistan); Comsan, M N.H. [Nuclear Research Centre, Inshas Cyclotron Facility, AEA 13759 Cairo (Egypt)

2000-11-15

The activation analysis with charged particles (ChPAA), as well as proton activation analysis (PAA), mainly requires separately irradiation of thick (thicker than the range of particles) samples and standard. Therefore for simplicity of determination of traces of chemical elements by instrumental PAA the absolute activity of the radionuclides must be known. Consequently we compilated data for nuclear decays (half life, radiation energy and intensity, type of decay, saturation factor), for nuclear reactions (excitation function, threshold energy, Q-value, yields of radionuclides), for the element under study (natural isotopic abundance of the nuclide, which yields the nuclear reaction considered, molar mass), stopping power of the irradiated material and the range of the particle that are used in the calculation of the absolute activity of the radionuclides and for the resolution of a nuclear interference problems of PAA. These data are tabulated. The tables of the radionuclides are presented in dependence on increasing atomic number and radiation energy as well as on methods of the radionuclide formation. The thick target yields of analytical radionuclides are presented versus particle energy.

Nuclear data for proton activation analysis

International Nuclear Information System (INIS)

Mukhammedov, S.; Vasidov, A.; Comsan, M.N.H.

2000-01-01

The activation analysis with charged particles (ChPAA), as well as proton activation analysis (PAA), mainly requires separately irradiation of thick (thicker than the range of particles) samples and standard. Therefore for simplicity of determination of traces of chemical elements by instrumental PAA the absolute activity of the radionuclides must be known. Consequently we compilated data for nuclear decays (half life, radiation energy and intensity, type of decay, saturation factor), for nuclear reactions (excitation function, threshold energy, Q-value, yields of radionuclides), for the element under study (natural isotopic abundance of the nuclide, which yields the nuclear reaction considered, molar mass), stopping power of the irradiated material and the range of the particle that are used in the calculation of the absolute activity of the radionuclides and for the resolution of a nuclear interference problems of PAA. These data are tabulated. The tables of the radionuclides are presented in dependence on increasing atomic number and radiation energy as well as on methods of the radionuclide formation. The thick target yields of analytical radionuclides are presented versus particle energy

Peaceful nuclear programme and front end nuclear fuel cycle activities in Pakistan

International Nuclear Information System (INIS)

S. Mukhtar Ahmed

1999-01-01

Pakistan has a modest but broad based nuclear programme related to peaceful uses of atomic energy in nuclear power, agriculture, medicine and industry. While development projects in these areas form the major segment of Pakistan Atomic Energy Commission's work, complimentary activities in basic research and human resource development are also supported. PAEC through its activities has been moving towards the goal of achieving self-reliance for its existing programme in an international atmosphere of embargoes and restrictions and in pursuit of creating an infrastructure to help sustain an indigenous nuclear power programme. To solve the local needs and requirements, radioisotopes and nuclear techniques have been applied in agriculture, medicine, hydrology and industry. PAEC has one large research and development establishment in physical sciences, three R and D centers in agriculture, one in biotechnology, and ten nuclear medical centers for diagnostics and oncology treatment. Two research reactors form nucleus of research and development activities in nuclear sciences. In the power sector a 137 Mew CANDU power reactor is in operation in Karachi since 1971. Another 300 Mew PWR is under construction and is nearing completion. Front-end fuel cycle and engineering infrastructure facilities have been established to support continued operation of Karachi Nuclear Power Plant (KANUPP). To support the engineering activities it has established facilities for precision workshops, non-destructive testing center and a welding institute. (author)

The European Commission proposes changes to the directive on nuclear safety

International Nuclear Information System (INIS)

Anon.

2013-01-01

The European Commission proposes changes in the ancient European directive on nuclear safety in order to europeanize nuclear safety. The first proposal is to submit all European nuclear facilities to a control every 6 years by a board of foreign experts. Another proposal is to impose that every new power plant should be designed so that the radiological impact of an accident should be limited to the facility itself. The same proposal would impose for every nuclear plant the presence of an emergency center resistant to radiation, earthquakes and floods. The reporting of any incident occurring in a nuclear plant would be made compulsory. The decision to extend the operating life of a nuclear plant would be suspended to the results of a compulsory safety test. (A.C.)

Directions for advanced use of nuclear power in century XXI

International Nuclear Information System (INIS)

Walter, C.E.

1999-01-01

Nuclear power can provide a significant contribution to electricity generation and meet other needs of the world and the US during the next century provided that certain directions are taken to achieve its public acceptance. These directions include formulation of projections of population, energy consumption, and energy resources over a responsible period of time. These projections will allow assessment of cumulative effects on the environment and on fixed resources. Use of fossil energy resources in a century of growing demand for energy must be considered in the context of long-term environmental damage and resource depletion. Although some question the validity of these consequences, they can be mitigated by use of advanced fast reactor technology. It must be demonstrated that nuclear power technology is safe, resistant to material diversion for weapon use, and economical. An unbiased examination of all the issues related to energy use, especially of electricity, is an essential direction to take

IAEA activities on nuclear fuel cycle 1997

Energy Technology Data Exchange (ETDEWEB)

Oi, N [International Atomic Energy Agency, Vienna (Austria). Nuclear Fuel Cycle and Materials Section

1997-12-01

The presentation discussing the IAEA activities on nuclear fuel cycle reviews the following issues: organizational charts of IAEA, division of nuclear power and the fuel cycle, nuclear fuel cycle and materials section; 1997 budget estimates; budget trends; the nuclear fuel cycle programme.

IAEA activities on nuclear fuel cycle 1997

International Nuclear Information System (INIS)

Oi, N.

1997-01-01

The presentation discussing the IAEA activities on nuclear fuel cycle reviews the following issues: organizational charts of IAEA, division of nuclear power and the fuel cycle, nuclear fuel cycle and materials section; 1997 budget estimates; budget trends; the nuclear fuel cycle programme

Worker in nuclear activity

International Nuclear Information System (INIS)

Goes Fischer, M.D. de; Associacao Brasileira de Direito Nuclear, Rio de Janeiro)

1984-01-01

Juridical aspects with respect to the workers in nuclear activity are presented. Special emphasis is given to the clauses of the statute of workers (Consolidacao das Leis do Trabalho) the rules of the Ministerio do Trabalho and the rules of the Comissao Nacional de Energia Nuclear. The performance of the international authorities is also emphasized such as the International Labour Organization, the International Atomic Energy Agency and the International Radiological Protection Commission. (Author) [pt

Nuclear spectroscopy with direct relations II. Proceedings

International Nuclear Information System (INIS)

Throw, F. E.

1964-01-01

The Symposium on Nuclear Spectroscopy with Direct Reactions, sponsored and organized by Argonne National Laboratory under the auspices of the U. S. Atomic Energy Commission, was held on 9-11 March 1964 at the Center for Continuing Education, University of Chicago. The present volume contains the invited papers along with abstracts or summaries of the few short papers selected for their special relevance to the topics of the invited lecturers . Edited versions of the discussions are also included

An overview on the activities of Pacific Nuclear Council

International Nuclear Information System (INIS)

Akiyama, Mamoru

2003-01-01

Pacific Nuclear Council (PNC) is a non-governmental organization (NGO) for cooperation and exchange of information on the nuclear science and technologies and its use in the Pacific basin countries to be established in November, 1989. The charter members are Canadian Nuclear Society, Canada Nuclear Association, Atomic Energy Society of Japan, Japan Atomic Industrial Forum, Inc., Korea Atomic Industrial Forum, Inc., and Mexico Nuclear Society. The activities of PNC are stated as followings; a charter, rules, objects, construction, management, activities for a member organization, Pacific Basin Nuclear Conference, foreign activities, social trend as back ground and future activities. As the activities for a member organization, eight working groups such as training of people, nuclear safety, public acceptances, reorganization of system, control of radioactive waste, public information and out reach, next generation reactor and rules and standards had been worked and the last four groups are working now. (S.Y.)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Sweden

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects (The Environmental Code, Environmental impact statement, Permit under the Environmental Code)); 5. Trade in nuclear materials and equipment; 6. Radiological protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability (The Nuclear Liability Act; Chernobyl legislation); II. Institutional Framework: 1. Ministries with responsibilities concerning nuclear activities (Ministry of the Environment; Ministry of Enterprise, Energy and Communications; Ministry of Justice; Ministry of Foreign Affairs); 2. Swedish Radiation Safety Authority

Annual report on nuclear physics activities

International Nuclear Information System (INIS)

Heeringa, W.; Voss, F.

1988-02-01

This report surveys the activities in basic research from July 1, 1986 to June 30, 1987 at the Institute for Nuclear Physics (IK) of the Nuclear Research Center Karlsruhe. The research program of this institute comprises laser spectroscopy, nuclear reactions with light ions, neutron physics, neutrino physics and high energy physics, as well as detector technology. (orig.) [de

Force Triggers YAP Nuclear Entry by Regulating Transport across Nuclear Pores.

Science.gov (United States)

Elosegui-Artola, Alberto; Andreu, Ion; Beedle, Amy E M; Lezamiz, Ainhoa; Uroz, Marina; Kosmalska, Anita J; Oria, Roger; Kechagia, Jenny Z; Rico-Lastres, Palma; Le Roux, Anabel-Lise; Shanahan, Catherine M; Trepat, Xavier; Navajas, Daniel; Garcia-Manyes, Sergi; Roca-Cusachs, Pere

2017-11-30

YAP is a mechanosensitive transcriptional activator with a critical role in cancer, regeneration, and organ size control. Here, we show that force applied to the nucleus directly drives YAP nuclear translocation by decreasing the mechanical restriction of nuclear pores to molecular transport. Exposure to a stiff environment leads cells to establish a mechanical connection between the nucleus and the cytoskeleton, allowing forces exerted through focal adhesions to reach the nucleus. Force transmission then leads to nuclear flattening, which stretches nuclear pores, reduces their mechanical resistance to molecular transport, and increases YAP nuclear import. The restriction to transport is further regulated by the mechanical stability of the transported protein, which determines both active nuclear transport of YAP and passive transport of small proteins. Our results unveil a mechanosensing mechanism mediated directly by nuclear pores, demonstrated for YAP but with potential general applicability in transcriptional regulation. Copyright © 2017 Elsevier Inc. All rights reserved.

Calculation of the neutron activation parameters from recently evaluated nuclear data

International Nuclear Information System (INIS)

Lopez Aldama, Daniel; Diaz Martinez, Nereida C.

1999-01-01

Neutron Activation Analysis (NAA) requires the values for nuclear data such as the 2200 m/s cross section so, the resonance integral I0, the parameter Q0 and the well-known Westcott factors. The availability of recently evaluated nuclear data libraries as the ENDF/B-VI Rev. 5, JEF 2.2, CENDL-2.1 and JENDL-3.2, makes possible to derive the above quantities from the basic nuclear data. It could be very helpful for those NAA parameters, which are unknown or difficult to measure accurately. The procedure to compute the NAA parameters includes the processing of the evaluated nuclear data and the calculation of each parameter directly from its definition. The evaluated nuclear data libraries ENDF/B-VI Rev. 5 and JENDL 3.2 were selected as the main sources of basic nuclear data. The ENDF pre-processing codes were used for processing the source evaluated data and a modified version of the INTER code was applied to calculate the required NAA integrals. The NAA parameters were computed for more than 30 important isotopes. The obtained results were compared with experimental values whenever possible

Waste management, decommissioning and environmental restoration for Canada's nuclear activities. Proceedings

International Nuclear Information System (INIS)

2011-01-01

The Canadian Nuclear Society conference on Waste Management, Decommissioning and Environmental Restoration for Canada's Nuclear Activities was held in Toronto, Ontario, Canada on September 11-14, 2011. The conference provided a forum for discussion of the status and proposed future directions of technical, regularly, environmental, social and economic aspects of radioactive waste management, nuclear facility decommissioning, and environmental restoration activities for Canadian nuclear facilities. The conference included both plenary sessions and sessions devoted to more detailed technical issues. The plenary sessions were focussed on three broad themes: the overall Canadian program; low and intermediate waste; and, international perspectives. Topics of the technical sessions included: OPG's deep geologic repository for low and intermediate level waste; stakeholder interactions; decommissioning projects; uranium mine waste management; used fuel repository - design and safety assessment; federal policies, programs and oversight; regulatory considerations; aboriginal traditional knowledge; geological disposal - CRL site classification; geological disposal - modelling and engineered barriers; Port Hope Area Initiative; waste characterization; LILWM - treatment and processing; decommissioning projects and information management; international experience; environmental remediation; fuel cycles and waste processing.

Response spectra for nuclear structures on rock sites considering the near-fault directivity effect

Institute of Scientific and Technical Information of China (English)

Xu Longiun; Yang Shengchao; Xie Lili

2010-01-01

Near-fault ground motions, potentially with large amplitude and typical velocity pulses, may significantly impact the performance of a wide range of structures. The current study is aimed at evaluating the safety implications of the near-fault effect on nuclear power plant facilities designed according to the Chinese code. To this end, a set of near-fault ground motions at rock sites with typical forward-directivity effect is examined with special emphasis on several key parameters and response spectra. Spectral comparison of the selected records with the Chinese and other code design spectra was conducted. The bi-normalized response spectra in terms of different comer periods are utilized to derive nuclear design spectra. It is concluded that nuclear design spectra on rock sites derived from typical rupture directivity records are significantly influenced both by the earthquake magnitude and the rupture distance. The nuclear design spectra specified in the code needs to be adjusted to reflect the near-fault directivity effect of large earthquakes.

Activities of the Nuclear Data Center

International Nuclear Information System (INIS)

Fuketa, Toyojiro

1978-01-01

The present status of international cooperation system for the nuclear data activities is introductorily explained in outline. The Nuclear Data Center of Japan Atomic Energy Research Institute is presently the only public data center in the field of nuclear data in Japan, and it has the following scope of the works: evaluation of the nuclear data, compilation of the Japanese Evaluated Nuclear Data Library (JENDL), application of the data including benchmark tests, development of the data storage, retrieval and processing systems, data service to the users, secretariat of the Japanese Nuclear Data Committee, and international cooperation. An introduction to the use of nuclear data is given with a brief information on the availability of the data and with some matters that demand special attention. (auth.)

DIRECT-CYCLE, BOILING-WATER NUCLEAR REACTOR

Science.gov (United States)

Harrer, J.M.; Fromm, L.W. Jr.; Kolba, V.M.

1962-08-14

A direct-cycle boiling-water nuclear reactor is described that employs a closed vessel and a plurality of fuel assemblies, each comprising an outer tube closed at its lower end, an inner tube, fuel rods in the space between the tubes and within the inner tube. A body of water lying within the pressure vessel and outside the fuel assemblies is converted to saturated steam, which enters each fuel assembly at the top and is converted to superheated steam in the fuel assembly while it is passing therethrough first downward through the space between the inner and outer tubes of the fuel assembly and then upward through the inner tube. (AEC)

Natural compounds regulate energy metabolism by the modulating the activity of lipid-sensing nuclear receptors.

Science.gov (United States)

Goto, Tsuyoshi; Kim, Young-Il; Takahashi, Nobuyuki; Kawada, Teruo

2013-01-01

Obesity causes excess fat accumulation in various tissues, most notoriously in the adipose tissue, along with other insulin-responsive organs such as skeletal muscle and the liver, which predisposes an individual to the development of metabolic abnormalities. The molecular mechanisms underlying obesity-induced metabolic abnormalities have not been completely elucidated; however, in recent years, the search for therapies to prevent the development of obesity and obesity-associated metabolic disorders has increased. It is known that several nuclear receptors, when activated by specific ligands, regulate carbohydrate and lipid metabolism at the transcriptional level. The expression of lipid metabolism-related enzymes is directly regulated by the activity of various nuclear receptors via their interaction with specific response elements in promoters of those genes. Many natural compounds act as ligands of nuclear receptors and regulate carbohydrate and lipid metabolism by regulating the activities of these nuclear receptors. In this review, we describe our current knowledge of obesity, the role of lipid-sensing nuclear receptors in energy metabolism, and several examples of food factors that act as agonists or antagonists of nuclear receptors, which may be useful for the management of obesity and the accompanying energy metabolism abnormalities. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Poland

International Nuclear Information System (INIS)

2015-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Licensing; Registration and monitoring of nuclear materials and radioactive sources; High activity sources); 4. Nuclear facilities (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiological protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (The President of the National Atomic Energy Agency - Prezes Panstwowej Agencji Atomistyki (President of the PAA); Minister of Health; Minister of the Environment); 2. Advisory bodies (Council for Nuclear Safety and Radiological Protection); 3. Public and semi-public bodies (Radioactive Waste Management Plant); 4. Research institutes (Central Laboratory for Radiological Protection; National Centre for Nuclear Research; Institute of Nuclear Physics; Institute of Nuclear Chemistry and Technology; Institute of Plasma Physics and Laser Microfusion)

On the activities and perspective works of Soviet Scientist Committee for peace against nuclear hazard

International Nuclear Information System (INIS)

Velikhov, E.P.

1986-01-01

Activities of Soviet Scientists' Committee for peace against nuclear hazard established in May 1983 was considered. Committee efforts are directed at struggle for nuclear weapon destruction, for stopping of all kinds of its tests against disposition of nuclear waepon in space. Soviet scientist report on SDI says that such system may serve not only as defensive means but also as means of destruction of earth, air and other objects and represents the most serious danger. Together with american scientists the Committee investigated ecological consequencies of nuclear war which results strongly impressed all over the world. Attention is paid to prospects in the Committee work related to the development of nuclear weapon destribution procedures as well as procedures and means of controls for destruction and limitation of weapons

Preliminary results of the analysis of the administered activities in diagnostic studies of nuclear medicine

International Nuclear Information System (INIS)

Lopez Bejerano, G.; Sed, L.J.

2001-01-01

The worldwide use of Nuclear Medicine diagnostic procedures and the tendency to its increment, infers an important exposure of the population to ionising radiation; it has motivated that the IAEA in the International Basic Safety Standards (BSS), emits recommendations for the establishment of guidance levels of activities administered to the patients in diagnostic procedures. Taking into account the above-mentioned and that in Cuba there exist 20 departments of Nuclear Medicine that in the majority possess equipment with more than 20 years of operation, which influences directly the medical exposure. A survey was designed and applied in 10 of these departments. The survey evaluates the compliance with the BSS requirements, and specifically, the activities administered to the patients in Nuclear Medicine diagnostic procedures are analysed. In the present work the obtained preliminary results of the statistical analysis carried out on the activity values used in Nuclear Medicine departments are presented, and comparisons made for a proposal of guidance levels for the national practice, which is compared with those recommended internationally. (author)

Intrinsic neutron background of nuclear emulsions for directional Dark Matter searches

Science.gov (United States)

Alexandrov, A.; Asada, T.; Buonaura, A.; Consiglio, L.; D'Ambrosio, N.; De Lellis, G.; Di Crescenzo, A.; Di Marco, N.; Di Vacri, M. L.; Furuya, S.; Galati, G.; Gentile, V.; Katsuragawa, T.; Laubenstein, M.; Lauria, A.; Loverre, P. F.; Machii, S.; Monacelli, P.; Montesi, M. C.; Naka, T.; Pupilli, F.; Rosa, G.; Sato, O.; Strolin, P.; Tioukov, V.; Umemoto, A.; Yoshimoto, M.

2016-07-01

Recent developments of the nuclear emulsion technology led to the production of films with nanometric silver halide grains suitable to track low energy nuclear recoils with submicrometric length. This improvement opens the way to a directional Dark Matter detection, thus providing an innovative and complementary approach to the on-going WIMP searches. An important background source for these searches is represented by neutron-induced nuclear recoils that can mimic the WIMP signal. In this paper we provide an estimation of the contribution to this background from the intrinsic radioactive contamination of nuclear emulsions. We also report the neutron-induced background as a function of the read-out threshold, by using a GEANT4 simulation of the nuclear emulsion, showing that it amounts to about 0.06 per year per kilogram, fully compatible with the design of a 10 kg × year exposure.

The Momentum of the European Directive on Nuclear Safety: From the Complexity of Nuclear Safety to Key Messages. Addressed to European citizens

International Nuclear Information System (INIS)

Pouleur, Y.; Krs, P.

2010-01-01

This paper intends to present the key issues of the directive (council directive 2009/71/EURATOM establishing a Community framework for the nuclear safety of nuclear installations, approved by the Permanent Representatives Committee (C.O.R.E.P.E.R. 2) on 24. June and by the Council of Ministers on 25. June in the environment Council. It was published on 2. July in the Official Journal, O.J. L 172:18 and is to be transposed by 22. July 2011): a summary of the institutional context, the international framework in the field of nuclear safety developed in fora such as the International Atomic energy Agency (IAEA), the basic principles of nuclear safety and the compromises that were necessary to finally reach the consensus on the text. The goal of the authors is to offer an objective and accurate analysis that could be used for the interpretation and better understanding of the directive. (N.C.)

Applied nuclear physics group - activities report. 1977-1997

International Nuclear Information System (INIS)

Appoloni, Carlos Roberto

1998-06-01

This report presents the activities conducted by the Applied Nuclear Physics group of the Londrina State University - Applied Nuclear Physics Laboratory - Brazil, from the activities beginning (1977) up to the end of the year 1997

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Slovenia

International Nuclear Information System (INIS)

2013-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Safeguards for nuclear material; 7. Radiation protection; 8. Radioactive waste management; 9. Nuclear security; 10. Transport; 11. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Slovenian Nuclear Safety Administration - SNSA; Slovenian Radiation Protection Administration - SRPA); 2. Advisory bodies; 3. Public and semi-public agencies; 4. Technical support organisations - approved experts

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Iceland

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances and equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Health and Social Security; Icelandic Radiation Protection Institute)

Nuclear cardiology in the UK: activity and practice 1997

International Nuclear Information System (INIS)

Prvulovich, Elizabeth; Metcalfe, Malcolm J.

2002-01-01

A questionnaire was sent to 251 nuclear medicine centres asking for details of nuclear medicine activity, and nuclear cardiology activity and practice in 1997. One hundred and seventy-one (68%) centres replied. Nuclear medicine activity was estimated at 11.8 studies/1,000 population/year, and 9.5% of these studies were within cardiology (1.12 studies/1,000/year). Myocardial perfusion imaging (MPI) studies accounted for 77% and radionuclide ventriculography (RNV) for 22% of all nuclear cardiology. On a national basis this represents activity levels of 0.86 and 0.25 studies/1,000/year for MPI and RNV, respectively. Of the 171 responding centres, 102 (60%) performed MPI studies and 81 (79%) of these reported that activity was increasing. However, MPI activity was unevenly distributed between hospitals. Two centres accounted for 13% of total MPI; others had far lower activity rates, and 51/102 (50%) centres performed less than 200 MPI studies/year. Comparison with previous surveys showed that nuclear medicine activity had almost doubled since 1990 (it was 6.0 studies/1,000 population in 1990, 9.3 studies/1,000 in 1994 and 11.8 studies/1,000 in 1997). Over the same period, nuclear cardiology activity had also risen, the greatest increase being seen for the last 3 years (it was 0.7 studies/1,000 population in 1990, 0.82 studies/1,000 in 1994 and 1.12 studies/1,000 in 1997). Despite these encouraging figures, MPI activity for 1997 remained well below that recommended by the British Cardiac Society in 1994 (2.6 studies/1,000/year) as adequate to serve the needs of patients with cardiac disease in the UK; it was also below the European average activity for the same year (2.2 studies/1,000/year). The anticipated increased workload for nuclear cardiology is encouraging despite the wide and varied practice of nuclear cardiology around the UK. The nuclear medicine community now needs to address the issues that will prevent it keeping up with demand, such as restricted camera

Activities of IPEN Nuclear Metrology Laboratory

International Nuclear Information System (INIS)

Dias, M.S.; Koskinas, M.F.; Pocobi, E.; Silva, C.A.M.; Machado, R.R.

1987-01-01

The activities of IPEN Nuclear Metrology Laboratory, which the principal objective is radionuclides activities determination for supplying sources and standard radioactive solutions in activity are presented. The systems installed, the activity bands and some of standards radionuclides are shown. (C.G.C.) [pt

Low nuclear body formation and tax SUMOylation do not prevent NF-kappaB promoter activation

Directory of Open Access Journals (Sweden)

Bonnet Amandine

2012-09-01

Full Text Available Abstract Background The Tax protein encoded by Human T-lymphotropic virus type 1 (HTLV-1 is a powerful activator of the NF-κB pathway, a property critical for HTLV-1-induced immortalization of CD4+ T lymphocytes. Tax permanently stimulates this pathway at a cytoplasmic level by activating the IκB kinase (IKK complex and at a nuclear level by enhancing the binding of the NF-κB factor RelA to its cognate promoters and by forming nuclear bodies, believed to represent transcriptionally active structures. In previous studies, we reported that Tax ubiquitination and SUMOylation play a critical role in Tax localization and NF-κB activation. Indeed, analysis of lysine Tax mutants fused or not to ubiquitin or SUMO led us to propose a two-step model in which Tax ubiquitination first intervenes to activate IKK while Tax SUMOylation is subsequently required for promoter activation within Tax nuclear bodies. However, recent studies showing that ubiquitin or SUMO can modulate Tax activities in either the nucleus or the cytoplasm and that SUMOylated Tax can serve as substrate for ubiquitination suggested that Tax ubiquitination and SUMOylation may mediate redundant rather than successive functions. Results In this study, we analyzed the properties of a new Tax mutant that is properly ubiquitinated, but defective for both nuclear body formation and SUMOylation. We report that reducing Tax SUMOylation and nuclear body formation do not alter the ability of Tax to activate IKK, induce RelA nuclear translocation, and trigger gene expression from a NF-κB promoter. Importantly, potent NF-κB promoter activation by Tax despite low SUMOylation and nuclear body formation is also observed in T cells, including CD4+ primary T lymphocytes. Moreover, we show that Tax nuclear bodies are hardly observed in HTLV-1-infected T cells. Finally, we provide direct evidence that the degree of NF-κB activation by Tax correlates with the level of Tax ubiquitination, but not

Low nuclear body formation and tax SUMOylation do not prevent NF-kappaB promoter activation.

Science.gov (United States)

Bonnet, Amandine; Randrianarison-Huetz, Voahangy; Nzounza, Patrycja; Nedelec, Martine; Chazal, Maxime; Waast, Laetitia; Pene, Sabrina; Bazarbachi, Ali; Mahieux, Renaud; Bénit, Laurence; Pique, Claudine

2012-09-25

The Tax protein encoded by Human T-lymphotropic virus type 1 (HTLV-1) is a powerful activator of the NF-κB pathway, a property critical for HTLV-1-induced immortalization of CD4⁺ T lymphocytes. Tax permanently stimulates this pathway at a cytoplasmic level by activating the IκB kinase (IKK) complex and at a nuclear level by enhancing the binding of the NF-κB factor RelA to its cognate promoters and by forming nuclear bodies, believed to represent transcriptionally active structures. In previous studies, we reported that Tax ubiquitination and SUMOylation play a critical role in Tax localization and NF-κB activation. Indeed, analysis of lysine Tax mutants fused or not to ubiquitin or SUMO led us to propose a two-step model in which Tax ubiquitination first intervenes to activate IKK while Tax SUMOylation is subsequently required for promoter activation within Tax nuclear bodies. However, recent studies showing that ubiquitin or SUMO can modulate Tax activities in either the nucleus or the cytoplasm and that SUMOylated Tax can serve as substrate for ubiquitination suggested that Tax ubiquitination and SUMOylation may mediate redundant rather than successive functions. In this study, we analyzed the properties of a new Tax mutant that is properly ubiquitinated, but defective for both nuclear body formation and SUMOylation. We report that reducing Tax SUMOylation and nuclear body formation do not alter the ability of Tax to activate IKK, induce RelA nuclear translocation, and trigger gene expression from a NF-κB promoter. Importantly, potent NF-κB promoter activation by Tax despite low SUMOylation and nuclear body formation is also observed in T cells, including CD4⁺ primary T lymphocytes. Moreover, we show that Tax nuclear bodies are hardly observed in HTLV-1-infected T cells. Finally, we provide direct evidence that the degree of NF-κB activation by Tax correlates with the level of Tax ubiquitination, but not SUMOylation. These data reveal that the

The monopoly of the nuclear activities in Brazil

International Nuclear Information System (INIS)

Santanna, Luciano Portal

2009-01-01

The difficulty in dealing with some technical and legal concepts related to use of radioactivity and nuclear energy, combined with a confusing law silent and many respects outdated, doubts arise and often, misconceptions about scope of the monopoly of the Federal Government on activities with nuclear ores and minerals and derivatives. With an interdisciplinary approach, the aim of this work address key aspects of the legal regime of nuclear activities and facilities in Brazil, distinguishing it from that applicable to the activities and radiative facilities

Synergism in regulation of nuclear and radiological activities

International Nuclear Information System (INIS)

Buzdugan, A.

2009-01-01

In 2006 the reform of nuclear activity regulation in Moldova was initiated. On May 11, 2006, the Parliament of the Republic of Moldova passed the law Nr 111-XVI 'About Safe Accomplishment of Nuclear and Radiological Activity'. On the 23rd of March, 2007 the National Agency for Regulation of Nuclear and Radiological Activities (NARNRA) was founded due to the decree of the Government under the Ministry of Ecology and Natural Resources. Its first objective was elaboration of necessary regulation documents in this field

Educational activity on nuclear energy in Aomori region

International Nuclear Information System (INIS)

Abe, Katsunori

2008-01-01

There are many nuclear industries and research facilities in Aomori Prefecture, Japan. Fuel cycle facilities and a LWR power station are now in operation. Another fuel cycle facilities and power stations will soon be under construction. Fusion research activity, ITER-BA, has started last year. We have launched nuclear-related education and research programs to teach nuclear engineering knowledge and skills to the local students. Hachinohe Institute of Technology is located on Pacific ocean side of Aomori Prefecture close to Rokkasho area, and has six undergraduate departments and three graduate courses. Hitherto, many alumni have engaged in nuclear-related companies in the area. In addition to previous subject on nuclear engineering, a new activity 'Challenge Nuclear-site Experience Program' started in 2007, as one of nuclear educational promotion programs in Japan. The students from various engineering departments learned the status and role of nuclear industries and researches. A curriculum course for nuclear engineering will be ready in 2009 for undergraduate students through various departments. In the summer of 2007, the introductory lesson on nuclear power generation and the technical tour to the power station were carried out for two days. In the autumn, the introductory lesson on nuclear fuel cycle and the tour to fuel cycle facilities were performed for three days, including one day tour to research facilities in the area. Its aim was to let the students recognize the role of regional nuclear activities and the attractiveness of nuclear-related industries. The program was supported by Ministry of Economy, Trade and Industry and was performed in cooperation with Tohoku Electric Power Company, Japan Nuclear Fuel Limited and Japan Atomic Energy Agency. (author)

OECD Nuclear Energy Agency. 5 activity report. 1976

International Nuclear Information System (INIS)

1977-01-01

The main activities of the Agency are reviewed: nuclear power trends; regulatory aspects of nuclear power; technical developments: Eurochemic, Halden, Dragon, food irradiation; gas-cooled fast reactors, isotopic batteries; nuclear data Centers

A study on the establishment of nuclear cooperative relations and future direction between Korea and Vietnam

Energy Technology Data Exchange (ETDEWEB)

Yang, M H; Kim, H S; Chung, W S; Yun, S W; Ko, H S; Lee, J K

2000-10-01

This study was carried out in order to review the cooperation with vietnam and establish and activate the cooperative relations with Vietnam. During the study, current status of use and development of nuclear energy in vietnam, were investigated including nuclear power plant and cooperative relations between two nations were also established. It was agreed through exchanges of visits of cooperation delegation; 1) exchange of visits of cooperation delegation, 2) holding of policy seminar for high level decision makers of Vietnam 3) cooperaton between KAERI/VAEC, 4) joint feasibility study for the construction of KSNP into Vietnam and technical presentation of KSNP. It is recommended that cooperaion with vietnam be implemented systematically through the long term based basic directions and integrated national strategies.

A study on the establishment of nuclear cooperative relations and future direction between Korea and Vietnam

International Nuclear Information System (INIS)

Yang, M. H.; Kim, H. S.; Chung, W. S.; Yun, S. W.; Ko, H. S.; Lee, J. K.

2000-10-01

This study was carried out in order to review the cooperation with vietnam and establish and activate the cooperative relations with Vietnam. During the study, current status of use and development of nuclear energy in vietnam, were investigated including nuclear power plant and cooperative relations between two nations were also established. It was agreed through exchanges of visits of cooperation delegation; 1) exchange of visits of cooperation delegation, 2) holding of policy seminar for high level decision makers of Vietnam 3) cooperaton between KAERI/VAEC, 4) joint feasibility study for the construction of KSNP into Vietnam and technical presentation of KSNP. It is recommended that cooperaion with vietnam be implemented systematically through the long term based basic directions and integrated national strategies

IAEA activities in nuclear safety: future perspectives. Spanish Nuclear Safety Council, Madrid, 28 May 1998

International Nuclear Information System (INIS)

ElBaradei, M.

1998-01-01

The document represents the conference given by the Director General of the IAEA at the Spanish Nuclear Safety Council in Madrid, on 28 May 1998, on Agency's activities in nuclear safety. The following aspects are emphasized: Agency's role in creating a legally binding nuclear safety regime, non-binding safety standards, services provided by the Agency to assist its Member States in the Application of safety standards, Agency's nuclear safety strategy, and future perspective concerning safety aspects related to radioactive wastes, residues of past nuclear activities, and security of radiological sources

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Luxembourg

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Framework: 1. General; 2. Mining; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency measures); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. General Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Health; Minister of Labour; Other Ministers competent); 2. Advisory bodies (Higher Health Council)

Annual report on nuclear physics activities

International Nuclear Information System (INIS)

Beck, R.; Bueche, G.; Fluegge, G.

1982-02-01

This report surveys the activities in fundamental research from July 1, 1980 to June 30, 1981 at the three institutes of the KfK which are concerned with nuclear physics. The research program comprises laser spectroscopy, nuclear reactions with light ions and physics at medium and higher energies. (orig.) [de

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Finland

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations; (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Ministry of Trade and Industry - KTM; Ministry of Social Affairs and Health; Ministry of the Interior; Ministry of the Environment; Ministry of Foreign Affairs); 2. Advisory bodies (Advisory Committee on Nuclear Energy; Advisory Committee on Nuclear Safety); 3. Public and semi-public agencies (Finnish Radiation and Nuclear Safety Authority - STUK; State Nuclear Waste Management Fund)

Safety Oversight of Decommissioning Activities at DOE Nuclear Sites

International Nuclear Information System (INIS)

Zull, Lawrence M.; Yeniscavich, William

2008-01-01

The Defense Nuclear Facilities Safety Board (Board) is an independent federal agency established by Congress in 1988 to provide nuclear safety oversight of activities at U.S. Department of Energy (DOE) defense nuclear facilities. The activities under the Board's jurisdiction include the design, construction, startup, operation, and decommissioning of defense nuclear facilities at DOE sites. This paper reviews the Board's safety oversight of decommissioning activities at DOE sites, identifies the safety problems observed, and discusses Board initiatives to improve the safety of decommissioning activities at DOE sites. The decommissioning of former defense nuclear facilities has reduced the risk of radioactive material contamination and exposure to the public and site workers. In general, efforts to perform decommissioning work at DOE defense nuclear sites have been successful, and contractors performing decommissioning work have a good safety record. Decommissioning activities have recently been completed at sites identified for closure, including the Rocky Flats Environmental Technology Site, the Fernald Closure Project, and the Miamisburg Closure Project (the Mound site). The Rocky Flats and Fernald sites, which produced plutonium parts and uranium materials for defense needs (respectively), have been turned into wildlife refuges. The Mound site, which performed R and D activities on nuclear materials, has been converted into an industrial and technology park called the Mound Advanced Technology Center. The DOE Office of Legacy Management is responsible for the long term stewardship of these former EM sites. The Board has reviewed many decommissioning activities, and noted that there are valuable lessons learned that can benefit both DOE and the contractor. As part of its ongoing safety oversight responsibilities, the Board and its staff will continue to review the safety of DOE and contractor decommissioning activities at DOE defense nuclear sites

The Current Status and Implications of Nuclear Energy Cultural Activities

International Nuclear Information System (INIS)

Kim, Dong Won

2006-01-01

The Korean nuclear energy community paid a high price in terms of the tremendous social costs incurred in the process of securing a site for mid-to-low radioactive waste disposal facility, indicating that interest in the technical danger of nuclear energy has spread to the realm of people's daily lives. Under the circumstances it is important to raise rational public awareness of nuclear science as a foundation of everyday life through nuclear cultural activities. This study examines the various types of public relations activities of the Korea Nuclear Energy Foundation, an organization in charge of promoting nuclear energy, and explores what activities are required to ensure efficient promotion in accordance with development of nuclear culture

Activities planning of Nuclear Data Center - 1980

International Nuclear Information System (INIS)

Nair, R.P.K.

1980-01-01

The main process systems of nuclear data files and the actual nuclear data processing implantation in the Instituto de Estudos Avancados, are presented. The research activities of Nuclear Data Center during 1980 in relation to the implantation of file process systems for multigroup cross sections, and the calculations of integral reactor parameters, are described. (M.C.K.) [pt

Handbook on nuclear activation data

International Nuclear Information System (INIS)

1987-01-01

This Handbook is being issued for the particular benefit of scientists working in the fields of education and industrial applications using nuclear activation methods, as well as in basic research. The content of the report is divided into four parts: standard reference data, neutron activation data, charged particle activation data and photonuclear activation data. The emphasis is on evaluated or recommended values rather than on an exhaustive presentation of all experimental results

Ignition properties of nuclear grade activated carbons

International Nuclear Information System (INIS)

Freeman, W.P.; Hunt, J.R.; Kovach, J.L.

1983-01-01

The ignition property of new activated carbons used in air cleaning systems of nuclear facilities has been evaluated in the past, however very little information has been generated on the behavior of aged, weathered carbons which have been exposed to normal nuclear facility environment. Additionally the standard procedure for evaluation of ignition temperature of carbon is performed under very different conditions than those used in the design of nuclear air cleaning systems. Data were generated evaluating the ageing of activated carbons and comparing their CH 3 131 I removal histories to their ignition temperatures. A series of tests were performed on samples from one nuclear power reactor versus use time, a second series evaluated samples from several plants showing the variability of atmospheric effects. The ignition temperatures were evaluated simulating the conditions existing in nuclear air cleaning systems, such as velocity, bed depth, etc., to eliminate potential confusion resulting from artifically set current standard conditions

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Canada

International Nuclear Information System (INIS)

2009-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction (Licensing system; Offences, compliance and enforcement; Regulatory documents; Other relevant legislation); 2. Mining regime; 3. Nuclear substances and radiation devices; 4. Nuclear facilities; 5. Trade in nuclear materials and equipment (Exports, Other imports); 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Governor in council; Minister of natural resources; Other Ministerial authorities; Canadian Nuclear Safety Commission - CNSC); 2. Public and semi-public agencies (National Research Council - NRC; Natural Sciences and Engineering Research Council; Atomic Energy of Canada Ltd. - AECL)

IAEA activities in the development of innovative nuclear technology – the Role of INPRO

International Nuclear Information System (INIS)

Drace, Z.

2013-01-01

INPRO provides for: • Development of global and regional nuclear energy evolution scenarios and visions to inform national policy development and collaboration among Member States; • Improved understanding of practical steps in transitions to regionally and globally sustainable NESs; • Improved understanding of innovations in technical and institutional features of NES that support transition to sustainable NES; • Holistic assessment of proposed and planned NES to assure that the stated objective of sustainability is rigorously measureable using a defensible consensus approach; and • Communication of insights gained through INPRO activities, and other subjects of direct shared interest to sustainable nuclear energy development, to all involved and interested stakeholders through the INPRO Dialogue Forum. All INPRO activities combined seek to develop a structured holistic approach to assessment and dynamic analysis of NES sustainability. This, together with consideration of both innovative technology and institutional arrangements, may potentially lead to improved understanding of the approach to globally sustainable nuclear energy systems

Nuclear safety regulation on nuclear safety equipment activities in relation to human and organizational factors

International Nuclear Information System (INIS)

Li Tianshu

2013-01-01

Based on years of knowledge in nuclear safety supervision and experience of investigating and dealing with violation events in repair welding of DFHM, this paper analyzes major faults in manufacturing and maintaining activities of nuclear safety equipment in relation to human and organizational factors. It could be deducted that human and organizational factors has definitely become key features in the development of nuclear energy and technology. Some feasible measures to reinforce supervision on nuclear safety equipment activities have also been proposed. (author)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Mexico

International Nuclear Information System (INIS)

2009-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; 11. Nuclear terrorism; II. Institutional Framework - The federal government: 1. Regulatory and supervisory authorities (Ministry of Energy; Ministry of Health; Ministry of Labour and Social Security; Ministry of the Environment and Natural Resources; Ministry of Communications and Transport); 2. Public and semi-public agencies: (National Nuclear Safety and Safeguards Commission; National Nuclear Research Institute)

Annual report on nuclear physics activities

International Nuclear Information System (INIS)

Borie, E.; Doll, P.; Rebel, H.

1982-11-01

This report surveys the activities in fundamental research from July 1, 1981 to June 30, 1982 at the three institutes of the KfK which are concerned with nuclear physics. The research program comprises laser spectroscopy, nuclear reactions with light ions, neutron physics, neutrino physics and physics at medium and higher energies. (orig.) [de

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Turkey

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Prime Minister; Ministry of Energy and Natural Resources; Ministry of Health; Ministry of the Environment and Forestry); 2. Public and semi-public agencies (Turkish Atomic Energy Authority - TAEK; General Directorate for Mineral Research and Exploration - MTA; ETI Mine Works General Management; Turkish Electric Generation and Transmission Corporation - TEAS; Turkish Electricity Distribution Corporation - TEDAS)

Can tonne-scale direct detection experiments discover nuclear dark matter?

Energy Technology Data Exchange (ETDEWEB)

Butcher, Alistair; Kirk, Russell; Monroe, Jocelyn; West, Stephen M., E-mail: Alistair.Butcher.2010@live.rhul.ac.uk, E-mail: Russell.Kirk.2008@live.rhul.ac.uk, E-mail: Jocelyn.Monroe@rhul.ac.uk, E-mail: Stephen.West@rhul.ac.uk [Department of Physics, Royal Holloway University of London, Egham, Surrey, TW20 0EX (United Kingdom)

2017-10-01

Models of nuclear dark matter propose that the dark sector contains large composite states consisting of dark nucleons in analogy to Standard Model nuclei. We examine the direct detection phenomenology of a particular class of nuclear dark matter model at the current generation of tonne-scale liquid noble experiments, in particular DEAP-3600 and XENON1T. In our chosen nuclear dark matter scenario distinctive features arise in the recoil energy spectra due to the non-point-like nature of the composite dark matter state. We calculate the number of events required to distinguish these spectra from those of a standard point-like WIMP state with a decaying exponential recoil spectrum. In the most favourable regions of nuclear dark matter parameter space, we find that a few tens of events are needed to distinguish nuclear dark matter from WIMPs at the 3 σ level in a single experiment. Given the total exposure time of DEAP-3600 and XENON1T we find that at best a 2 σ distinction is possible by these experiments individually, while 3 σ sensitivity is reached for a range of parameters by the combination of the two experiments. We show that future upgrades of these experiments have potential to distinguish a large range of nuclear dark matter models from that of a WIMP at greater than 3 σ .

Can tonne-scale direct detection experiments discover nuclear dark matter?

International Nuclear Information System (INIS)

Butcher, Alistair; Kirk, Russell; Monroe, Jocelyn; West, Stephen M.

2017-01-01

Models of nuclear dark matter propose that the dark sector contains large composite states consisting of dark nucleons in analogy to Standard Model nuclei. We examine the direct detection phenomenology of a particular class of nuclear dark matter model at the current generation of tonne-scale liquid noble experiments, in particular DEAP-3600 and XENON1T. In our chosen nuclear dark matter scenario distinctive features arise in the recoil energy spectra due to the non-point-like nature of the composite dark matter state. We calculate the number of events required to distinguish these spectra from those of a standard point-like WIMP state with a decaying exponential recoil spectrum. In the most favourable regions of nuclear dark matter parameter space, we find that a few tens of events are needed to distinguish nuclear dark matter from WIMPs at the 3 σ level in a single experiment. Given the total exposure time of DEAP-3600 and XENON1T we find that at best a 2 σ distinction is possible by these experiments individually, while 3 σ sensitivity is reached for a range of parameters by the combination of the two experiments. We show that future upgrades of these experiments have potential to distinguish a large range of nuclear dark matter models from that of a WIMP at greater than 3 σ .

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Japan

International Nuclear Information System (INIS)

2011-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Cabinet Office; Minister of Economy, Trade and Industry - METI; Minister of Land, Infrastructure and Transport - MLIT; Minister of Education, Culture, Sports, Science and Technology - MEXT); 2. Advisory bodies (Atomic Energy Commission - AEC; Nuclear Safety Commission - NSC; Radiation Council; Special Committee on Energy Policy; Other advisory bodies); 3. Public and Semi-Public Agencies (Japan Atomic Energy Agency - JAEA)

EPRI expert system activities for nuclear utility industry application

International Nuclear Information System (INIS)

Naser, J.A.

1990-01-01

This paper reports on expert systems which have reached a level of maturity where they offer considerable benefits for the nuclear utility industry. The ability of expert systems to enhance expertise makes them an important tool for the nuclear utility industry in the areas of engineering, operations and maintenance. Benefits of expert system applications include comprehensive and consistent reasoning, reduction of time required for activities, retention of human expertise and ability to utilize multiple experts knowledge for an activity. The Electric Power Research Institute (EPRI) has been performing four basic activities to help the nuclear industry take advantage of this expert system technology. The first is the development of expert system building tools which are tailored to nuclear utility industry applications. The second is the development of expert system applications. The third is work in developing a methodology for verification and validation of expert systems. The last is technology transfer activities to help the nuclear utility industry benefit from expert systems. The purpose of this paper is to describe the EPRI activities

The monopoly of the nuclear activities in Brazil; O monopolio das atividades nucleares no Brasil

Energy Technology Data Exchange (ETDEWEB)

Santanna, Luciano Portal

2009-07-01

The difficulty in dealing with some technical and legal concepts related to use of radioactivity and nuclear energy, combined with a confusing law silent and many respects outdated, doubts arise and often, misconceptions about scope of the monopoly of the Federal Government on activities with nuclear ores and minerals and derivatives. With an interdisciplinary approach, the aim of this work address key aspects of the legal regime of nuclear activities and facilities in Brazil, distinguishing it from that applicable to the activities and radiative facilities.

Activities of Nuclear Regulatory Authority and safety of nuclear facilities in the Slovak Republic in 1993

International Nuclear Information System (INIS)

1994-04-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (NRA SR) in 1993 is presented. These activities are reported under the headings: (1) Introduction; (2) Regulatory activities at nuclear power plants units in operation; (2.1) Nuclear power plant SEP-EBO V-1; (4) Selected operation events and safety assessment in NPP SEP-EBO V-1; (2.2) Safety assessment of NPP SEP-EBO V-2; (3) Results of regulatory activities at the decommissioning of NPP A-1; (4) Regulatory activities at units under construction SEP-EMO - NPP Mochovce; (5) Further regulatory activities. (5.1) Preparation of designated personnel; (5.2) Inspection and accountancy of nuclear material; (5.3) Security provisions; (5.4) Accounted items and double use items; (5.5) Problem of radioactive wastes; (6.1) International co-operation activities of NRA; (6.2) Emergency planning; (6.3) International activities for quality enhancement of national supervision; (7) Conclusion [sk

Recent Activities on Global Nuclear Safety Regime

International Nuclear Information System (INIS)

Cho, Kun-Woo; Park, Jeong-Seop; Kim, Do-Hyoung

2006-01-01

Recently, rapid progress on the globalization of the nuclear safety issues is being made in IAEA (International Atomic Energy Agency) and its member states. With the globalization, the need for international cooperation among international bodies and member states continues to grow for resolving these universal nuclear safety issues. Furthermore, the importance of strengthening the global nuclear safety regime is emphasized through various means, such as efforts in application of IAEA safety standards to all nuclear installations in the world and in strengthening the code of conduct and the convention on nuclear safety. In this regards, it is important for us to keep up with the activities related with the global nuclear safety regime as an IAEA member state and a leading country in nuclear safety regulation

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - New Zealand

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive Substances and Equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities - National Radiation Laboratory - NRL; 2. Advisory bodies - Radiation Protection Advisory Council; 3. Public and semi-public agencies - Research institutes

Direct reading spectrochemical analysis of nuclear graphite; Analisis espectroquimico de lectura directa de grafito nuclear

Energy Technology Data Exchange (ETDEWEB)

Roca Adell, M; Becerro Ruiz, E; Alvarez Gonzalez, F

1964-07-01

A description is given about the application of a direct-reading spectrometer the Quantometer, to the determination of boron. calcium, iron, titanium and vanadium in nuclear grade graphite. for boron the powdered sample is mixed with 1% cupric fluoride and excited in a 10-amperes direct current arc and graphite electrodes with a crater 7 mm wide and 10 mm deep. For the other elements a smaller crater has been used and dilution with a number of matrices has been investigated; the best results are achieved by employing 25% cupric fluoride. The sensitivity limit for boron is 0,15 ppm. (Author) 21 refs.

Direct nuclear reactions and the structure of atomic nuclei

International Nuclear Information System (INIS)

Osterfeld, F.

1985-01-01

The present thesis deals with two different aspects of direct nuclear reactions, namely on the one hand with the microscopic calculation of the imaginary optical potential for the elastic nucleon-nucleus scattering as well as on the other hand with the microscopic analysis of giant magnetic resonances in atomic nuclei which are excited by (p,n) charge-exchange reactions. In the first part of the thesis the imaginary part of the optical potential for the elastic proton- and neutron-nucleus scattering is microscopically calculated in the framework of the so called nuclear-structure approximation to the optical potential. The calculations are performed in the Feshbach formalism in second-order perturbation theory corresponding to an effective projectile-target-nucleon interaction. In the second part of this thesis in the framework of microscopic nuclear models a complete analysis of different A(p,n)B charge-exchange reactions at high incident energies 160 MeV 90 Zr(p,n) reaction three collective spin-isospin resonances could be uniquely identified. (orig./HSI) [de

The national law on nuclear activity: some consequences

International Nuclear Information System (INIS)

Gonzalez Acosta, G.

1997-01-01

This article describes the contents of the new National Law on Nuclear Activities of the Argentine Republic, analysing the functions of the National Atomic Energy Commission (CNEA), the Nuclear Regulatory Authority (ARN) (former National Board of Nuclear Regulation -ENREN) and the privatisation of the nuclear power generation performed by the enterprise Nucleoelectrica Argentina S.A. (NASA). It also includes some comments about political and legislative records of the Law in the framework of the Nation's reorganization undertaken by the National Government for the privatisation of the rendering of public services, such as the production of energy and related activities. The Law was approved by Law 24.804 of April 2, 1997, and published in the Official Bulletin of the Argentine Republic on April 25, 1997. In accordance with the provisions of this Law, the National Government, through the above mentioned organisations, will fix the nuclear policy and the functions of research, development, surveillance and control of the nuclear activity. Also, as part of the execution of the nuclear policy, all the obligations accepted by Argentina as signatory party to the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean (Tlatelolco Treaty), the Treaty on Non-Proliferation of Nuclear Weapons (TNP), the Agreement between the Argentine Republic and the Federative Republic of Brazil through the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) and the International Atomic Energy Agency (IAEA) to enforce Safeguards, in addition to the commitments signed by Argentina as a member of the Suppliers Group and the National Control System for Sensitive Exports, shall be met [es

Goal Direction and Effectiveness, Emotional Maturity, and Nuclear Family Functioning

Science.gov (United States)

Klever, Phillip

2009-01-01

Differentiation of self, a cornerstone concept in Bowen theory, has a profound influence over time on the functioning of the individual and his or her family unit. This 5-year longitudinal study tested this hypothesis with 50 developing nuclear families. The dimensions of differentiation of self that were examined were goal direction and…

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Portugal

International Nuclear Information System (INIS)

2011-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Ministry of Health; Minister of Science, Technology and Higher Education; Ministry of Economy and Innovation; Ministry of Environment and Territorial Planning; Other authorities); 2. Advisory bodies (Independent Commission for Radiological Protection and Nuclear Safety - CIPRSN; National Radiation Protection Commission - CNPCR; National Commission for Radiological Emergencies - CNER; Other advisory bodies); 3. Public and semi-public agencies

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Denmark

International Nuclear Information System (INIS)

2015-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Health; Minister for the Environment/Minister of Transport and Energy; Minister of Justice; Minister of Defence; National Board of Health; Emergency Management Agency); 2. Advisory bodies (The Danish Ministry of Energy, Supply and Climate and the Danish Energy Agency); 3. Public and semi-public agencies (Risoe National Laboratory)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Ireland

International Nuclear Information System (INIS)

2009-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations; 5. Trade in nuclear materials and equipment; 6. Radiation protection (Radiation protection standards; Emergency response); 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister for the Environment, Heritage and Local Government; Minister for Agriculture and Food; Minister for Communications, Marine and Natural Resources; Minister for Finance; Minister for Health and Children; Minister for Defence); 2. Public and semi-public agencies (Radiological Protection Institute of Ireland; Food Safety Authority of Ireland)

Outreach activity by using three-dimensional nuclear chart. Understanding nuclear physics and nuclear energy

International Nuclear Information System (INIS)

Koura, Hiroyuki

2015-01-01

A three-dimensional nuclear chart is constructed with toy blocks for usage of outreach activity related on nuclear physics and atomic energy. The height of each block represents quantities like atomic mass per nucleon, the total half-life, etc. The bulk properties of the nuclei can be easily understood by using these charts. Explanations for the energy generation of nuclear fusion and fission are visually given. In addition, we newly set another chart with blocks of fission fragment mass distribution from U-235 + a thermal neutron. As an example, the origin of abundances of rather radioactive isotopes like Sr-90 and Cs-137 is explained which created in nuclear reactor and also distributed in the eastern side of Fukushima prefecture due to the accident of Fukushima-Daiichi Nuclear Power Plant. Using our charts, lectures entitled 'Alchemy of the Universe' were delivered to high schools and public places. (author)

CDKL5 influences RNA splicing activity by its association to the nuclear speckle molecular machinery.

Science.gov (United States)

Ricciardi, Sara; Kilstrup-Nielsen, Charlotte; Bienvenu, Thierry; Jacquette, Aurélia; Landsberger, Nicoletta; Broccoli, Vania

2009-12-01

Mutations in the human X-linked cyclin-dependent kinase-like 5 (CDKL5) gene have been shown to cause severe neurodevelopmental disorders including infantile spasms, encephalopathy, West-syndrome and an early-onset variant of Rett syndrome. CDKL5 is a serine/threonine kinase whose involvement in Rett syndrome can be inferred by its ability to directly bind and mediate phosphorylation of MeCP2. However, it remains to be elucidated how CDKL5 exerts its function. Here, we report that CDKL5 localizes to specific nuclear foci referred to as nuclear speckles in both cell lines and tissues. These sub-nuclear structures are traditionally considered as storage/modification sites of pre-mRNA splicing factors. Interestingly, we provide evidence that CDKL5 regulates the dynamic behaviour of nuclear speckles. Indeed, CDKL5 overexpression leads to nuclear speckle disassembly, and this event is strictly dependent on its kinase activity. Conversely, its down-regulation affects nuclear speckle morphology leading to abnormally large and uneven speckles. Similar results were obtained for primary adult fibroblasts isolated from CDKL5-mutated patients. Altogether, these findings indicate that CDKL5 controls nuclear speckle morphology probably by regulating the phosphorylation state of splicing regulatory proteins. Nuclear speckles are dynamic sites that can continuously supply splicing factors to active transcription sites, where splicing occurs. Notably, we proved that CDKL5 influences alternative splicing, at least as proved in heterologous minigene assays. In conclusion, we provide evidence that CDKL5 is involved indirectly in pre-mRNA processing, by controlling splicing factor dynamics. These findings identify a biological process whose disregulation might affect neuronal maturation and activity in CDKL5-related disorders.

Direct cycle type nuclear power plant

International Nuclear Information System (INIS)

Tagawa, Hisato; Ibe, Hidefumi.

1990-01-01

In a direct cycle type nuclear power plant such as BWR type reactor, since oxygen atoms in reactor water are actuvated by neutron irradiation in the reactor core, carry over of the thus formed radioactive nitrogen atoms causes increase in the dosage in a turbine system. Since 16 N accompanies in the main steams in the chemical form of 16 NO, it can not effectively be removed in a nitrogen removing device. In view of the above, hydrogen atom concentration is reduced by adding metals having high reaction with hydrogen atoms, for example, silver ions, chromium ions, or ruthenium ions are added to reactor water. Then, equilibrium concentration of 16 NO in water is reduced by suppressing the reaction: 16 NO 2 + H → 16 NO + OH. (T.M.)

Quantummechanical multi-step direct models for nuclear data applications

International Nuclear Information System (INIS)

Koning, A.J.

1992-10-01

Various multi-step direct models have been derived and compared on a theoretical level. Subsequently, these models have been implemented in the computer code system KAPSIES, enabling a consistent comparison on the basis of the same set of nuclear parameters and same set of numerical techniques. Continuum cross sections in the energy region between 10 and several hundreds of MeV have successfully been analysed. Both angular distributions and energy spectra can be predicted in an essentially parameter-free manner. It is demonstrated that the quantum-mechanical MSD models (in particular the FKK model) give an improved prediction of pre-equilibrium angular distributions as compared to the experiment-based systematics of Kalbach. This makes KAPSIES a reliable tool for nuclear data applications in the afore-mentioned energy region. (author). 10 refs., 2 figs

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Norway

International Nuclear Information System (INIS)

2001-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances, Nuclear Fuel and Equipment; 4. Nuclear Installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in Nuclear Materials and Equipment (Trade governed by nuclear energy legislation; Trade governed by radiation protection legislation; Trade governed by export/import control legislation); 6. Radiation Protection; 7. Radioactive Waste Management; 8. Non-Proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and Supervisory Authorities: A. Ministerial Level (Ministry of Health and Social Affairs; Ministry of Trade and Industry; Ministry of Foreign Affairs; Other Ministries); B. Subsidiary Level: (The Norwegian Radiation Protection Authority - NRPA; The Norwegian Nuclear Emergency Organisation); 2. Public and Semi-Public Agencies - Institute for Energy Technology - IFE

Globalization of nuclear activities and global governance

International Nuclear Information System (INIS)

Sefidvash, Farhang

1997-01-01

The safe production of nuclear energy as well as the disarmament of nuclear weapons and the peaceful utilization of nuclear materials resulting from dismantling of such weapons are some of the formidable problems of global governance. The Commission on Global Governance was established in 1992 in the belief that international developments had created a unique opportunity for strengthening global co-operation to meet the challenge of securing peace, achieving sustainable development, and universalizing democracy. Here a summary of their proposals on the globalization of nuclear activities to face challenges of the coming century is given. To follow up their activities by the worlds community in general. The research Centre for Global Governance (RCGG) at the Federal University of Rio Grande do Sul was established. Already a great number of researchers from many different countries have adhered to the Centre. Here the program of the RCGG is described. (author)

Globalization of nuclear activities and global governance

Energy Technology Data Exchange (ETDEWEB)

Sefidvash, Farhang [Rio Grande do Sul Univ., Porto Alegre, RS (Brazil). Dept. de Engenharia Nuclear

1997-07-01

The safe production of nuclear energy as well as the disarmament of nuclear weapons and the peaceful utilization of nuclear materials resulting from dismantling of such weapons are some of the formidable problems of global governance. The Commission on Global Governance was established in 1992 in the belief that international developments had created a unique opportunity for strengthening global co-operation to meet the challenge of securing peace, achieving sustainable development, and universalizing democracy. Here a summary of their proposals on the globalization of nuclear activities to face challenges of the coming century is given. To follow up their activities by the worlds community in general. The research Centre for Global Governance (RCGG) at the Federal University of Rio Grande do Sul was established. Already a great number of researchers from many different countries have adhered to the Centre. Here the program of the RCGG is described. (author)

Overview Of Planning Direction Of Nuclear Power Development In Vietnam In The Period Up To 2030

International Nuclear Information System (INIS)

Ta Van Huong; Tran Hong Nguyen

2011-01-01

Research for peaceful application of nuclear energy, in general, and in particular, for construction of nuclear power plants (NPP) in Vietnam is urgent for social-economic development and for meeting the increasing national electrical demand in future. The expected plan for developing NPPs in Vietnam is defined in the Planning Direction of Nuclear Power Development in Vietnam in the period up to 2030. In according to which, NPPs have been planned in selected sites by the period depends on the detailed conditions of each site, as well as on specification of the national electrical grid. The present report reviews the highlights of this Planning Direction of Nuclear Power Development in Vietnam in the period up to 2030. (author)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities. Japan

International Nuclear Information System (INIS)

2017-01-01

The NEA has updated, in coordination with the Permanent Delegation of Japan to the OECD, the report on the Regulatory and Institutional Framework for Nuclear Activities in Japan. This country report provides comprehensive information on the regulatory and institutional framework governing nuclear activities in Japan. It provides a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. Content: I - General Regulatory Regime: Introduction; Mining regime; Radioactive substances and equipment; Nuclear installations (Reactor Regulation, Emergency response); Trade in nuclear materials and equipment; Radiological protection; Radioactive waste management; Nuclear safeguards and nuclear security; Transport; Nuclear third party liability. II - Institutional Framework: Regulatory and supervisory authorities (Cabinet Office, Nuclear Regulation Authority (NRA), Ministry of Economy, Trade and Industry (METI), The Agency for Natural Resources and Energy (ANRE), Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Ministry of Education, Culture, Sports, Science and Technology (MEXT)); Advisory bodies (Atomic Energy Commission (AEC), Reactor Safety Examination Committee, Nuclear Fuel Safety Examination Committee, Radiation Council, Other advisory bodies); Public and semi-public agencies (Japan Atomic Energy Agency (JAEA), National Institutes for Quantum and Radiological Science and Technology (QST), Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF), Nuclear Waste Management Organisation (NUMO))

Managing Siting Activities for Nuclear Power Plants

International Nuclear Information System (INIS)

2012-01-01

One of the IAEA's statutory objectives is to ''seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world''. One way this objective is achieved is through the publication of a range of technical series. Two of these are the IAEA Nuclear Energy Series and the IAEA Safety Standards Series. According to Article III.A.6 of the IAEA Statute, the safety standards establish 'standards of safety for protection of health and minimization of danger to life and property.' The safety standards include the Safety Fundamentals, Safety Requirements and Safety Guides. These standards are written primarily in a regulatory style, and are binding on the IAEA for its own programmes. The principal users are the regulatory bodies in Member States and other national authorities. The IAEA Nuclear Energy Series comprises reports designed to encourage and assist R and D on, and application of, nuclear energy for peaceful uses. This includes practical examples to be used by owners and operators of utilities in Member States, implementing organizations, academia, and government officials, among others. This information is presented in guides, reports on technology status and advances, and best practices for peaceful uses of nuclear energy based on inputs from international experts. The IAEA Nuclear Energy Series complements the IAEA Safety Standards Series. The introduction of nuclear power brings new challenges to States - one of them being the selection of appropriates sites. It is a project that needs to begin early, be well managed, and deploy good communications with all stakeholders; including regulators. This is important, not just for those States introducing nuclear power for the first time, but for any State looking to build a new nuclear power plant. The purpose of the siting activities goes beyond choosing a suitable site and acquiring a licence. A large part of the project is about producing and maintaining a validated

Managing Siting Activities for Nuclear Power Plants

Energy Technology Data Exchange (ETDEWEB)

NONE

2012-06-15

One of the IAEA's statutory objectives is to ''seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world''. One way this objective is achieved is through the publication of a range of technical series. Two of these are the IAEA Nuclear Energy Series and the IAEA Safety Standards Series. According to Article III.A.6 of the IAEA Statute, the safety standards establish 'standards of safety for protection of health and minimization of danger to life and property.' The safety standards include the Safety Fundamentals, Safety Requirements and Safety Guides. These standards are written primarily in a regulatory style, and are binding on the IAEA for its own programmes. The principal users are the regulatory bodies in Member States and other national authorities. The IAEA Nuclear Energy Series comprises reports designed to encourage and assist R and D on, and application of, nuclear energy for peaceful uses. This includes practical examples to be used by owners and operators of utilities in Member States, implementing organizations, academia, and government officials, among others. This information is presented in guides, reports on technology status and advances, and best practices for peaceful uses of nuclear energy based on inputs from international experts. The IAEA Nuclear Energy Series complements the IAEA Safety Standards Series. The introduction of nuclear power brings new challenges to States - one of them being the selection of appropriates sites. It is a project that needs to begin early, be well managed, and deploy good communications with all stakeholders; including regulators. This is important, not just for those States introducing nuclear power for the first time, but for any State looking to build a new nuclear power plant. The purpose of the siting activities goes beyond choosing a suitable site and acquiring a licence. A large part of the project is about producing and maintaining a validated

Nuclear technology for sustainable development and FNCA activities

International Nuclear Information System (INIS)

Machi, Sueo

2004-01-01

Nuclear techniques have been contributing to sustainable development and human welfare through their applications in agriculture, health care, food supply, industry, water resources and environmental conservation. Nuclear techniques are more advantageous and/or complementary with other techniques to achieve goals. For many applications nuclear technique is more environmentally friendly because it does not need chemical agents to induce necessary reactions. This paper also illustrates successful applications of nuclear techniques and activities of the regional nuclear cooperation in Asia, FNCA (Forum for Nuclear Cooperation in Asia) to achieve common goals with limited resources. (author)

Instituto de Asuntos Nucleares. Report of Activities 1989

International Nuclear Information System (INIS)

1989-01-01

It is a summary of the technical activities carried out by the Instituto de Asuntos Nucleares, Bogota, Colombia, during 1989. It includes activities in topics as: research projects, transfer of technology, scientific information, qualification and training programs, mainly, which were done in areas like: agriculture, industrial applications, medicine, radiation protection, hydrology, nuclear technology development, radiochemistry and physics, among others

Future directions for ferritic/martensitic steels for nuclear applications

International Nuclear Information System (INIS)

Klueh, R.L.; Swindeman, R.W.

2000-01-01

High-chromium (7-12% Cr) ferritic/martensitic steels are being considered for nuclear applications for both fission and fusion reactors. Conventional 9-12Cr Cr-Mo steels were the first candidates for these applications. For fusion reactors, reduced-activation steels were developed that were patterned on the conventional steels but with molybdenum replaced by tungsten and niobium replaced by tantalum. Both the conventional and reduced-activation steels are considered to have an upper operating temperature limit of about 550degC. For improved reactor efficiency, higher operating temperatures are required. For ferritic/martensitic steels that could meet such requirements, oxide dispersion-strengthened (ODS) steels are being considered. In this paper, the ferritic/martensitic steels that are candidate steels for nuclear applications will be reviewed, the prospect for ODS steel development and the development of steels produced by conventional processes will be discussed. (author)

Direct interaction in nuclear reactions: a theory; L'interaction directe dans les reactions nucleaires: theorie

Energy Technology Data Exchange (ETDEWEB)

Dominicis, C.T. de [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1959-07-01

General treatment of the foundations of direct interaction in nuclear reactions; representation of the instantaneous elastic scattering amplitude by the scattering amplitude due to a complex potential; expansion of the instantaneous inelastic scattering amplitude and discussion of the 1. Bohr approximation (distorted waves) contribution to individual and collective states of excitation. (author) [French] Expose general sur les fondements de l'interaction directe dans les reactions nucleaires; representation de l'amplitude de diffusion instantanee elastique par celle due a un potentiel complexe; developpement de l'amplitude de diffusion instantanee inelastique et discussion de la contribution de la premiere approximation de Bohr (sur des distendues) a l'excitation d'etats individuels et collectifs. (auteur)

Dynamic regulation of Drosophila nuclear receptor activity in vivo.

Science.gov (United States)

Palanker, Laura; Necakov, Aleksandar S; Sampson, Heidi M; Ni, Ruoyu; Hu, Chun; Thummel, Carl S; Krause, Henry M

2006-09-01

Nuclear receptors are a large family of transcription factors that play major roles in development, metamorphosis, metabolism and disease. To determine how, where and when nuclear receptors are regulated by small chemical ligands and/or protein partners, we have used a 'ligand sensor' system to visualize spatial activity patterns for each of the 18 Drosophila nuclear receptors in live developing animals. Transgenic lines were established that express the ligand binding domain of each nuclear receptor fused to the DNA-binding domain of yeast GAL4. When combined with a GAL4-responsive reporter gene, the fusion proteins show tissue- and stage-specific patterns of activation. We show that these responses accurately reflect the presence of endogenous and exogenously added hormone, and that they can be modulated by nuclear receptor partner proteins. The amnioserosa, yolk, midgut and fat body, which play major roles in lipid storage, metabolism and developmental timing, were identified as frequent sites of nuclear receptor activity. We also see dynamic changes in activation that are indicative of sweeping changes in ligand and/or co-factor production. The screening of a small compound library using this system identified the angular psoralen angelicin and the insect growth regulator fenoxycarb as activators of the Ultraspiracle (USP) ligand-binding domain. These results demonstrate the utility of this system for the functional dissection of nuclear receptor pathways and for the development of new receptor agonists and antagonists that can be used to modulate metabolism and disease and to develop more effective means of insect control.

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - France

International Nuclear Information System (INIS)

2011-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Framework: 1. General (The French nuclear power programme and its main players; French nuclear law); 2. Mining Regime; 3. Radioactive Substances and Nuclear Equipment (Regulatory diversity; Radioactive sources; Medical activities); 4. Trade in Nuclear Materials and Equipment (Basic nuclear installations - INB; Tax on basic nuclear installations, Additional taxes, Funding nuclear costs; Installations classified for environmental protection purposes (ICPE) using radioactive substances; Nuclear pressure equipment - ESPN; Defence-related nuclear installations and activities - IANID; Emergency plans); 5. Trade in Nuclear Materials and Equipment (General provisions; Patents); 6. Radiation protection (Protection of the public; Protection of workers; Radiation protection inspectors; Labour inspectors; Protection of individuals in a radiological emergency); 7. Radioactive Waste Management (General regulations; Radioactive waste regulations; Discharge of effluents); 8. Non-proliferation and physical protection (Materials not used for the nuclear deterrent; Materials used for the nuclear deterrent); 9. Transport (Licensing and notification regime: Transport of radioactive materials, Transport of nuclear materials, Transport of radioactive substances between member states of the European Union; Methods of transport: Land transport, Sea transport, Air transport, Transport by post); 10

Anti-nuclear activities and critics concerning nuclear power plant sites

International Nuclear Information System (INIS)

Rhee, We-Beg

2000-01-01

Korea has dynamic nuclear power expansion programs, operating 16 nuclear units producing 13710 MW in total located on 4 different sites. Last year, nuclear power supplied over 40 % of national total electricity demands. In 1998, Korean government initiated re-designation work investigating circumstance changes to rule out the unnecessary sites in consideration of a long-term power supply. Korean government has determined to expand the Ulchin site and to designate one point of Woolju county as a new candidate site, and ruled out the rest candidate sites at the end of 1998. About such a governmental measure, the two areas show different reactions. Ulchin where nuclear power plant has been operated safely for about 10 years was likely to accept the governmental determination in spite of some opposition and called for several financial supports for local development. WooIju county, however, showed a strong opposition among local environmental groups and autonomous politicians, and they presented a variety of anti-nuclear activities including demonstrations mainly at the neighbouring metropolis, Ulsan city

1984 Ordinance on nuclear activities (1984:14)

International Nuclear Information System (INIS)

1984-01-01

This Supplementary Ordinance on Nuclear Activities (1984:14) sets out a regulatory regime for the conveyance out of Sweden of equipment or material that has been specially designed or prepared for the processing, use or production of nuclear substances or which is otherwise of essential importance for the production of nuclear devices. The Annex to the Ordinance sets out the list of such equipment or material whose export is subject to Government authorisation. (NEA) [fr

Nuclear data activities in Korea

International Nuclear Information System (INIS)

Chang, Jonghwa; Lee, Young-Ouk

2002-01-01

The situation of the nuclear data project in Korea is reviewed in this paper. The results of the first stage from 1997 - 2000 are reviewed with associated application projects such as a test reactor HANARO, a light water reactor project SMART, a liquid metal reactor project KALIMER, an ADS project KOMAC, a waste project, medial application, and electron linac application. The strategy for setting up the second stage, during 2001 - 2004, are introduced. The user requirement, quality assurance, nuclear data processing, service, and measurement activity are reviewed. (author)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Czech Republic

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear items and spent fuel (Ionising radiation sources; Nuclear items; Spent fuel); 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response; Decommissioning); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (State Office for Nuclear Safety - SUJB; Ministry of Industry and Trade; Ministry of the Interior; Ministry of the Environment); 2. Public and semi-public agencies (CEZ, a.s.; National Radiation Protection Institute - NRPI; Radioactive Waste Repository Authority - RAWRA; Diamo; Nuclear Physics Institute - NPI; National Institute for Nuclear, Chemical and Biological Protection; Nuclear Research Institute Rez, a.s. - NRI)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Slovak Republic

International Nuclear Information System (INIS)

2013-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances and Equipment; 4. Nuclear Installations (Licensing and Inspection, including Nuclear Safety; Emergency Response); 5. Trade in Nuclear Materials and Equipment; 6. Radiological Protection; 7. Radioactive Waste Management; 8. Non-proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and Supervisory Authorities (Nuclear Regulatory Authority of the Slovak Republic - UJD; Ministry of Health; Ministry of the Environment; Ministry of the Interior; Ministry of Economy; Ministry of Labour and National Labour Inspectorate); 2. Public and Semi-Public Agencies

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Australia

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I) - General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection (Bilateral safeguards agreements; International Atomic Energy Agency Safeguards Agreement; The South Pacific Nuclear Free Zone Treaty Act; The Comprehensive Nuclear Test-Ban Treaty Act; The Nuclear Non-Proliferation (Safeguards) Act); 9. Transport; 10. Nuclear third party liability; II) - Institutional Framework: 1. Regulatory and supervisory authorities (Minister for Health and Ageing; Minister for Foreign Affairs; Minister for the Environment, Heritage and the Arts; Minister for, Resources, Energy and Tourism); 2. Advisory bodies (Radiation Health and Safety Advisory Council; Advisory Committees); 3. Public and semi-public agencies (Australian Radiation Protection and Nuclear Safety Agency (ARPANSA); Australian Safeguards and Non-Proliferation Office; Australian Nuclear Science and Technology Organisation (ANSTO); Supervising Scientist)

Several nuclear events during apoptosis depend on caspase-3 activation but do not constitute a common pathway.

Directory of Open Access Journals (Sweden)

Lisa Trisciuoglio

Full Text Available A number of nuclear events occur during apoptosis, including DNA laddering, nuclear lamina breakdown, phosphorylation of histones H2B and histone H2AX, and the tight binding to chromatin of HMGB1 and CAD, the nuclease responsible for DNA laddering. We have performed an epistasis analysis to investigate whether these events cluster together in pathways. We find that all depend directly or indirectly on caspase-3 activation. CAD activation, H2AX phosphorylation and DNA laddering cluster together into a pathway, but all other events appear to be independent of each other downstream of caspase-3, and likely evolved subject to different functional pressures.

Direct reactions in inverse kinematics for nuclear structure studies far off stability at low incident energies

International Nuclear Information System (INIS)

Egelhof, P.

1997-02-01

The investigation of light-ion induced direct reactions with exotic beams in inverse kinematics gives access to a wide field of nuclear structure studies in the region far off stability. The present contribution will focus on the investigation of few-nucleon transfer reactions, which turn out to be most favourably studied with good-quality low-energy radioactive beams, as provided by the new generation of radioactive beam facilities presently planned or under construction at Caen, Grenoble, Munich, and elsewhere. An overview on the physics motivation, basically concerning nuclear structure and nuclear astrophysics questions, is given. Of particular interest are the nuclear shell model in the region far off stability, the two-body residual interaction in nuclei, the structure of halo nuclei, as well as the understanding of the r-process scenario. The experimental conditions, along with the experimental concept, for such measurements are discussed with particular emphasis on the kinematical conditions, the observables, as well as the appropriate detection schemes. The concept of a large solid angle TPC ionization chamber as an active target for experiments with low-energy radioactive beams is presented. It turns out to be a highly effective detection scheme, well suited for the present experimental conditions, at least for light exotic beams up to Z∼20. (orig.)

Direct Estimation of Power Distribution in Reactors for Nuclear Thermal Space Propulsion

Science.gov (United States)

Aldemir, Tunc; Miller, Don W.; Burghelea, Andrei

2004-02-01

A recently proposed constant temperature power sensor (CTPS) has the capability to directly measure the local power deposition rate in nuclear reactor cores proposed for space thermal propulsion. Such a capability reduces the uncertainties in the estimated power peaking factors and hence increases the reliability of the nuclear engine. The CTPS operation is sensitive to the changes in the local thermal conditions. A procedure is described for the automatic on-line calibration of the sensor through estimation of changes in thermal .conditions.

A study on the direction for the development of the Korean nuclear R and D system toward the globalization

Energy Technology Data Exchange (ETDEWEB)

Won, Byung Chul; Jeong, Yeun Ho; Kim, Myung Ro [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of); Kim, Young Pyung [Korea Univ., Seoul (Korea, Republic of)

1996-02-01

The purpose of this study is to explore future directions for the development of the Korean nuclear research system by comparing the nuclear R and D systems in the U.S., France, Japan, and Canada. In an effort to search for appropriate directions, this study analyzed the characteristics of the nuclear research systems in advanced nations in the following areas; 1. configuration of nuclear R and D, 2. morphological characteristics of major nuclear R and D organization, 3. evaluation of R and D performance, general management issues such as leadership, coordination, culture, etc., and 4. inter-organizationals with government agencies, utilities, and other regulatory organizations. On the basis of comparing the nuclear R and D system in Korea with those in the U.S., France, Japan, and Canada, this study tries to develop recommendations for the future directions of the Korean nuclear R and D system. The results of this research can serve as a reference to a long-term development plan for the Korean nuclear R and D system. 21 tabs., 11 figs., 36 refs. (Author).

A study on the direction for the development of the Korean nuclear R and D system toward the globalization

International Nuclear Information System (INIS)

Won, Byung Chul; Chung, Yun Ho; Kim, Myung Ro

1994-12-01

This study explores future directions for the development of the Korean nuclear R and D system by comparing the nuclear R and D systems in the US, France, Japan, and Canada. In an effort to search for appropriate directions, this study analyzed characteristics of the nuclear R and D systems in advanced nations in the following areas; (1) configuration of nuclear R and D, (2) morphological characteristics of major nuclear R and D organization, (3) evaluation of R and D performance, general management issues such as leadership, coordination, culture, etc., and (4) inter- organizationals with government agencies, utilities, and other regulatory organizations. On the basis of comparing the nuclear R and D system in Korea with those in the US, France, Japan, and Canada, this study tries to develop recommendations for the future directions of the Korean nuclear R and D system. The results of this research can serve as a reference to a long-term development plan for the Korean nuclear R and D system. 23 tabs., 4 figs., 34 refs. (Author)

A study on the direction for the development of the Korean nuclear R and D system toward the globalization

International Nuclear Information System (INIS)

Won, Byung Chul; Jeong, Yeun Ho; Kim, Myung Ro; Kim, Young Pyung

1996-02-01

The purpose of this study is to explore future directions for the development of the Korean nuclear research system by comparing the nuclear R and D systems in the U.S., France, Japan, and Canada. In an effort to search for appropriate directions, this study analyzed the characteristics of the nuclear research systems in advanced nations in the following areas; 1. configuration of nuclear R and D, 2. morphological characteristics of major nuclear R and D organization, 3. evaluation of R and D performance, general management issues such as leadership, coordination, culture, etc., and 4. inter-organizationals with government agencies, utilities, and other regulatory organizations. On the basis of comparing the nuclear R and D system in Korea with those in the U.S., France, Japan, and Canada, this study tries to develop recommendations for the future directions of the Korean nuclear R and D system. The results of this research can serve as a reference to a long-term development plan for the Korean nuclear R and D system. 21 tabs., 11 figs., 36 refs. (Author)

A study on the direction for the development of the Korean nuclear R and D system toward the globalization

Energy Technology Data Exchange (ETDEWEB)

Won, Byung Chul; Chung, Yun Ho; Kim, Myung Ro [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

1994-12-01

This study explores future directions for the development of the Korean nuclear R and D system by comparing the nuclear R and D systems in the US, France, Japan, and Canada. In an effort to search for appropriate directions, this study analyzed characteristics of the nuclear R and D systems in advanced nations in the following areas; (1) configuration of nuclear R and D, (2) morphological characteristics of major nuclear R and D organization, (3) evaluation of R and D performance, general management issues such as leadership, coordination, culture, etc., and (4) inter- organizationals with government agencies, utilities, and other regulatory organizations. On the basis of comparing the nuclear R and D system in Korea with those in the US, France, Japan, and Canada, this study tries to develop recommendations for the future directions of the Korean nuclear R and D system. The results of this research can serve as a reference to a long-term development plan for the Korean nuclear R and D system. 23 tabs., 4 figs., 34 refs. (Author).

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Netherlands

International Nuclear Information System (INIS)

2009-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Fissionable materials, ores, radioactive materials and equipment (Fissionable materials and ores; Radioactive materials and equipment); 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection (Protection of workers; Protection of the public; Protection of individuals undergoing medical exposure); 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister for Housing, Spatial Planning and the Environment; Minister for Economic Affairs; Minister for Social Affairs and Employment; Minister for Health, Welfare and Sports; Minister for Finance; Minister for Foreign Affairs); 2. Advisory body - Health Council of the Netherlands; 3. Public and semi-public agencies (Nuclear Research and Consultancy Group - NRG; Central Organisation for Radioactive Waste - COVRA)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Spain

International Nuclear Information System (INIS)

2010-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trading in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection (Safeguards and non-proliferation; Physical protection); 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Ministry of Industry, Tourism and Trade - MITYC; Ministry of the Interior - MIR; Ministry of Economy and the Exchequer - MEH; Ministry of the Environment and Rural and Marine Affairs - MARM); 2. Public and semi-public agencies (Nuclear Safety Council - CSN; Centre for Energy-related, Environmental and Technological Research - CIEMAT; National Energy Commission - CNE; 3. Public capital companies (Enusa Industrias Avanzadas, s.a. - ENUSA; Empresa Nacional de Residuos Radiactivos, s.a. - ENRESA)

Direct harvesting of Helium-3 (3He) from heavy water nuclear reactors

International Nuclear Information System (INIS)

Bentoumi, G.; Didsbury, R.; Jonkmans, G.; Rodrigo, L.; Sur, B.

2013-01-01

The thermal neutron activation of deuterium inside a heavy-water-moderated or -cooled nuclear reactor produces a build-up of tritium in the heavy water. The in situ decay of tritium can, for certain reactor types and operating conditions, produce potentially useable amounts of 3 He, which can be directly extracted via the heavy-water cover gas without first separating, collecting and storing tritium outside the reactor. It is estimated that the amount of 3 He available for recovery from the moderator cover gas of a 700 MWe class Pressurized Heavy Water Reactor (PHWR) ranges from 0.1 to 0.7 m 3 (STP) per annum, varying with the tritium activity buildup in the moderator. The harvesting of 3 He would generate approximately 12.7 m 3 (STP) of 3 He, worth more than $30M at current market rates, over a typical 25-year operating cycle of the PHWR. This paper discusses the production of 3 He in the moderator of a PHWR and its extraction from the 4 He moderator cover gas system using conventional methods. (author)

A proposal for cooperative activities between Japan and Indonesia in the field of nuclear research and nuclear education

International Nuclear Information System (INIS)

Subki, Iyos

2008-01-01

Development and realization of cooperative activities between Japan and Indonesia in nuclear research and education is indeed very important for scientists and engineers of both countries. This bilateral cooperation can easily be expanded into a regional cooperation benefiting the scholars from Asian region which is expecting a New Nuclear Age in the 21st Century. To develop and realize this cooperative activities, in the first step, we invite the ideas of our partners in the Nuclear Institution and in Universities. They are eager to have and undertake this cooperation effort. For nuclear research activities, they have proposed several topics which include: advanced radioactive waste technology and management in a nuclear power plant, innovative fuel development for LWR's, gas cooled reactor for electricity and hydrogen production and a topic on design and construction of high energy accelerator. Institute of Technology - Bandung (ITB), University of Gajah Mada (UGM) and School of Nuclear Technology (STTN/BATAN) are interested in cooperative works which include: joint development of standard curriculum for M.Sc. level in response to increased activities in nuclear research and nuclear power development, exchange of guest lecturers, and exchange of M.Sc. level students. With this cooperation, we want to put very special emphasis on nuclear human resources development (nuclear - HRD) in anticipation of the upcoming nuclear era. (author)

The Orphan Nuclear Receptor TR4 Is a Vitamin A-activated Nuclear Receptor

Energy Technology Data Exchange (ETDEWEB)

Zhou, X. Edward; Suino-Powell, Kelly M.; Xu, Yong; Chan, Cee-Wah; Tanabe, Osamu; Kruse, Schoen W.; Reynolds, Ross; Engel, James Douglas; Xu, H. Eric (Michigan-Med); (Van Andel)

2015-11-30

Testicular receptors 2 and 4 (TR2/4) constitute a subgroup of orphan nuclear receptors that play important roles in spermatogenesis, lipid and lipoprotein regulation, and the development of the central nervous system. Currently, little is known about the structural features and the ligand regulation of these receptors. Here we report the crystal structure of the ligand-free TR4 ligand binding domain, which reveals an autorepressed conformation. The ligand binding pocket of TR4 is filled by the C-terminal half of helix 10, and the cofactor binding site is occupied by the AF-2 helix, thus preventing ligand-independent activation of the receptor. However, TR4 exhibits constitutive transcriptional activity on multiple promoters, which can be further potentiated by nuclear receptor coactivators. Mutations designed to disrupt cofactor binding, dimerization, or ligand binding substantially reduce the transcriptional activity of this receptor. Importantly, both retinol and retinoic acid are able to promote TR4 to recruit coactivators and to activate a TR4-regulated reporter. These findings demonstrate that TR4 is a ligand-regulated nuclear receptor and suggest that retinoids might have a much wider regulatory role via activation of orphan receptors such as TR4.

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Switzerland

International Nuclear Information System (INIS)

2010-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Nuclear fuels; Radioactive substances and equipment generating ionising radiation); 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; 11. Environmental protection; II. Institutional Framework: 1. Regulatory and supervisory authorities (Federal Council; Federal Assembly; Federal Department of the Environment, Transport, Energy and Communications - DETEC; Federal Office of Energy - SFOE; Swiss Federal Nuclear Safety Inspectorate - IFSN; Federal Department of Home Affairs - FDHA; Federal Office of Public Health - FOPH; State Secretariat for Education and Research - SER; Other authorities); 2. Advisory bodies (Swiss Federal Nuclear Safety Commission - KNS; Federal Commission for Radiological Protection and Monitoring of the Radioactivity in the Environment; Federal Emergency Organisation on Radioactivity); 3. Public and semi-public agencies (Paul-Scherrer Institute - PSI; Fund for the decommissioning of nuclear installations and for the waste disposal; National Co-operative for the

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Belgium

International Nuclear Information System (INIS)

2010-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Nuclear facilities (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response; Decommissioning); 4. Trade in nuclear materials and equipment; 5. Radiological protection; 6. Radioactive waste management; 7. Non-proliferation of nuclear weapons and physical protection of nuclear material (International aspects; National control and security measures); 8. Transport; 9. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Federal Agency for Nuclear Control - FANC; Federal Public Service for Home Affairs; Federal Public Service for Economy, SME's, Self-Employed and Energy; Federal Public Service for Employment, Labour and Social Dialogue; Federal Public Service for Defence; Federal Public Service for Foreign Affairs, Foreign Trade and Development Co-operation; Federal Public Planning Service for Science Policy); 2. Advisory bodies (Scientific Council for Ionizing Radiation of the Federal Agency for Nuclear Control; Superior Health Council; Superior Council for Safety, Hygiene and Enhancement of Workplaces; Advisory Committee for the Non-Proliferation of Nuclear Weapons; Commission for Electricity and Gas Regulation - CREG)

Civil liability on nuclear activities

International Nuclear Information System (INIS)

Bittar, C.A.

1982-01-01

The civil liability theory in the actual context is shown in the first and second part of this thesis, including some considerations about concepts and types of liability in dangerous and not dangerous activities. In the third part, the legal aspects of civil liability for the nuclear activities are analyzed, with a brief description of the history evolution, standard systems, inspection corporation and juridical regulation. (C.G.C.). 239 refs

Discovery potential for directional dark matter detection with nuclear emulsions

Science.gov (United States)

Guler, A. M.; NEWSdm Collaboration

2017-06-01

Direct Dark Matter searches are nowadays one of the most exciting research topics. Several Experimental efforts are concentrated on the development, construction, and operation of detectors looking for the scattering of target nuclei with Weakly Interactive Massive Particles (WIMPs). In this field a new frontier can be opened by directional detectors able to reconstruct the direction of the WIMP-recoiled nucleus thus allowing to extend dark matter searches beyond the neutrino floor. Exploiting directionality would also give a proof of the galactic origin of dark matter making it possible to have a clear and unambiguous signal to background separation. The angular distribution of WIPM-scattered nuclei is indeed expected to be peaked in the direction of the motion of the Solar System in the Galaxy, i.e. toward the Cygnus constellation, while the background distribution is expected to be isotropic. Current directional experiments are based on the use of gas TPC whose sensitivity is limited by the small achievable detector mass. In this paper we show the potentiality in terms of exclusion limit of a directional experiment based on the use of a solid target made by newly developed nuclear emulsions and read-out systems reaching sub-micrometric resolution.

Accelerators and alternative nuclear fuel management options

International Nuclear Information System (INIS)

Harms, A.A.

1983-01-01

The development of special accelerators suggests the po tential for new directions in nuclear energy systems evolution. Such directions point towards a more acceptable form of nuclear energy by reason of the consequent accessibility of enhanced fuel management choices. Essential and specifically directed research and development activity needs to be under taken in order to clarify and resolve a number of technical issues

Nuclear science and technology in Polish People's Republic

International Nuclear Information System (INIS)

Bijak, J.; Valis, L.; Vincel, G.; Goffman, P.; Deptula, C.; Krepsztul, H.; Michalik, E.; Siekierski, S.; Soltan, A.; Pomczak, M.; Chwaszczewski, S.; Szterk, L.; Szulc, P.

1979-01-01

History of development of nuclear science and technology in Poland is stated. List is given of main directions of activity of scientific establishments in the field of nuclear science and technology, as well as of directions of international co-operation. Directions are stated of fundamental researches in the field of atomic nuclear physics and elementary particles physics, and lists given of scientific research institutes engaged in these investigations. The results are presented of main works in the field of nuclear reactor physics, as well as list is given of installations being used in these investigations. Program is stated of development of nuclear energetics in Poland. The results are given of investigations in the field of processing of different types of uranium ores with low content of uranium, as well as directions are stated of works in the field of nuclear fuel technology. The results of works are stated on transuranium elements production; fission products separation; production of radionuclides and labelled compounds, in particular, for application in nuclear medicine. Description is given of directions of activity in the field of production of nuclear instrumentation and of application of isotopes and radiation in the people's economy. Main methods are given of application of isotopes and radiations in industry for control and for production of materials with new properties or for influence on the course of technological processes [ru

Recent development in safety regulation of nuclear fuel cycle activities

International Nuclear Information System (INIS)

Kato, S.

2001-01-01

Through the effort of deliberation and legislation over five years, Japanese government structure was reformed this January, with the aim of realizing simple, efficient and transparent administration. Under the reform, the Agency for Nuclear and Industrial Safety (ANIS) was founded in the Ministry of Economy, Trade and Industry (METI) to be responsible for safety regulation of energy-related nuclear activities, including nuclear fuel cycle activities, and industrial activities, including explosives, high-pressure gasses and mining. As one of the lessons learned from the JCO criticality accident of September 1999, it was pointed out that the government's inspection function was not enough for fuel fabrication facilities. Accordingly, new statutory regulatory activities were introduced, namely, inspection of observance of safety rules and procedures for all kinds of nuclear operators and periodic inspection of fuel fabrication facilities. In addition, in order to cope with insufficient safety education and training of workers in nuclear facilities, licensees of nuclear facilities are required by law to specify safety education and training for their workers. ANIS is committed to enforce these new regulatory activities effectively and efficiently. In addition, it is going to be prepared, in its capacity as safety regulatory authority, for future development of Japanese fuel cycle activities, including commissioning of JNFL Rokkasho reprocessing plant and possible application for licenses for JNFL MOX fabrication plant and for spent fuel interim storage facilities. (author)

Activities of the Nuclear Regulatory Authority of the Slovak Republic and safety of nuclear facilities in the Slovak Republic in 1994

International Nuclear Information System (INIS)

1995-01-01

The report summarizes activities of the Nuclear Regulatory Authority of the Slovak Republic (NRA SR) in 1994 and briefly presents results of the national expert supervision over nuclear safety facilities in the SR in 1994. In 1994, the NRA SR have performed a national supervision of following organizations: SE, a.s. - Jaslovske Bohunice Nuclear Power Plant (V-1 Nuclear Power Plant (V-1 NPP), V-2 Nuclear Power Plant (V-2 NPP), A-1 Nuclear Power Plant (A-1 NPP)); Mochovce Nuclear Power Plant; Radioactive waste repository, Mochovce); Organizations providing a specialized training of NPP personnel; Organizations providing specific deliveries and activities for the nuclear power industry; Organizations having an owner of nuclear materials; Organizations providing activities related to import of radioactive sources; Organizations using radioactive sources. Organization structure of the NRA SR is explained. In the presented Chapter 1 - Safety of nuclear power plants in the Slovak Republic - safety aspects of the Slovak NPPs are reported. The next activities are reported: nuclear materials and safeguards; radioactive waste; emergency planning and NRA SR's control and crisis centre; international activities to improve the national surveillance quality; other activities

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Austria

International Nuclear Information System (INIS)

2003-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I) - General Regulatory Regime - General Outline: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances, Nuclear Fuel and Equipment; 4. Nuclear Installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in Nuclear Materials and Equipment; 6. Radiation Protection; 7. Radioactive Waste Management; 8. Non-Proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II) - Institutional Framework: 1. Regulatory and Supervisory Authorities: A. Federal Authorities - Bund (The Federal Chancellery; The Federal Minister for Women's Affairs and Consumer Protection; The Federal Minister of the Interior; The Federal Minister for Economic Affairs; The Federal Minister of Finance; The Federal Minister of Labour, Health and Social Affairs; The Federal Minister of Science and Transport; The Federal Minister of Justice; The Federal Minister for the Environment; The Federal Minister for Foreign Affairs) B. Regional Authorities - Laender; C. District Authorities - Bezirksverwaltungsbehorden; 2. Advisory Bodies (Forum for Nuclear Questions, Radiation Protection Commission - SSK); 3. Public and Semi-Public Agencies (The Seibersdorf Austrian Research Centre; The Graz Nuclear Institute; The Nuclear Institute of the Austrian Universities; The Institute of Risk Research, University of Vienna)

Reorganization and redimensioning of nuclear activities in Venezuela

International Nuclear Information System (INIS)

1984-02-01

This paper is of a self-critical nature, beginning with a retrospective look at nuclear activities in Venezuela. An inventory of human resources, materials and existing techniques is also made. National nuclear policies and developments are examined pointing out failures and successes. Finally, conclusions are presented about the technical assistance received from international organizations in research, nuclear safety and technological development

Nuclear and radiological regulation in Moldova

International Nuclear Information System (INIS)

Buzdugan, Artur

2013-01-01

The nuclear security and safety legal framework in Moldova has changed significantly over the last 6 years. This has mainly been the result of implementation of IAEA nuclear safety and nuclear security standards, European directives, which are based on new data and evolving concepts at the international level, on adopted in May 2006 of the Law no. 111 On safe deployment of nuclear and radiological activities and establishing on established on March 2007 of a sole regulatory authority - the National Agency for the Regulation of Nuclear and Radiological Activities. (author)

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Hungary

International Nuclear Information System (INIS)

2008-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection; 7. Radioactive waste management; 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Atomic Energy Co-ordination Council; Hungarian Atomic Energy Authority - HAEA; Minister for Health; Minister for Local Government and Regional Development and Minister for Justice and Law Enforcement; Minister for Agriculture and Rural Development; Minister for Economy and Transport; Minister of Environment Protection and Water Management; Minister for Defence; Minister for Education; President of the Hungarian Mining and Geological Authority; Governmental Co-ordination Committee); 2. Advisory bodies (Scientific Board); 3. Public and semi-public agencies (Institute for Electric Power Research - VEIKI; Atomic Energy Research Institute - AEKI; Institute of Isotopes; Department of Physical Chemistry of the University of Pannon; Hungarian Power Companies Ltd - MVM Zrt.)

Nuclear development in Korea

International Nuclear Information System (INIS)

Lee Byong Whi

1993-10-01

The Korean research and development project ''evelopment of Next Generation Reactor Technology'' aimed at the 21st century is briefly outlined. Activities directed to improvement of public acceptance of nuclear energy, the public information and education on the advanced nuclear reactor and fuel cycle technology are described

Nuclear waste: Status of DOE's nuclear waste site characterization activities

International Nuclear Information System (INIS)

1987-01-01

Three potential nuclear waste repository sites have been selected to carry out characterization activities-the detailed geological testing to determine the suitability of each site as a repository. The sites are Hanford in south-central Washington State, Yucca Mountain in southern Nevada, and Deaf Smith in the Texas Panhandle. Two key issues affecting the total program are the estimations of the site characterization completion data and costs and DOE's relationship with the Nuclear Regulatory Commission which has been limited and its relations with affected states and Indian tribes which continue to be difficult

Technical Publications as Indicators for Nuclear Fuel Cycle Declarable Activities

International Nuclear Information System (INIS)

Schuler, R.; El Gebaly, A.; Feldman, Y.; Gagne, D.; Schot, P.-M.; Ferguson, M.

2015-01-01

The Department of Safeguards aims to provide credible assurances to the international community that States are fulfiling their safeguards obligations in that all nuclear material remains in peaceful use. It does so in part by developing and implementing methodologies for early detection of undeclared activities or misuse of nuclear material or technology, based on large and diverse sources of information. Analyzing scientific, technical and patent information allows analysts in the Department to understand the technology available to a State, to forecast possible technical developments, to map collaborative research activities within and across States, and compare that information with declarations received by the State for completeness and correctness. Furthermore, with regard to patent information, scientists or companies want to make sure their intellectual property is protected; accordingly, patents are frequently filed before the information is published elsewhere, making patent information also an early indicator of relevant activities. Dealing with such large information sources requires the use of an innovative methodology conducting analysis. The Department has recently begun to examine the efficacy of link analysis tools to help carry out its mission. Using the link analysis platform Palantir, the authors conducted several case studies with the aim of deriving sound analytical results from large amounts of technical information within a reasonable time frame. The authors used data sets of bibliographic references from the IAEA International Nuclear Information System (INIS),Web of Science, Science Direct and data on worldwide patents from the European Patent Office (EPO). Based on these case studies, the authors are developing methodologies for the efficient application of link analysis to scientific and technical information, thus strengthening the Department's information collection and analysis capabilities and the overall process of State

Report of 'the 2014 international forum on peaceful use of nuclear energy, nuclear non-proliferation and nuclear security. Future direction toward promoting non-proliferation and the ideal method of developing human resources using Centers of Excellence (COEs) following the new strategic energy plan'

International Nuclear Information System (INIS)

Yamaga, Chikanobu; Tomikawa, Hirofumi; Kobayashi, Naoki; Naoi, Yosuke; Oda, Tetsuzo; Mochiji, Toshiro

2015-10-01

The Japan Atomic Energy Agency (JAEA) held 'International Forum on Peaceful Use of Nuclear Energy, Nuclear Non-proliferation and Nuclear Security – Future direction toward promoting non-proliferation and the ideal method of developing human resources using Centers of Excellence (COEs) following the New Strategic Energy Plan -' on 3 December 2014, with the Japan Institute of International Affairs (JIIA) and School of Engineering, The University of Tokyo, and International Nuclear Research Center, Tokyo Institute of Technology as co-hosts. In the Forum, officials and experts from Japan, the United States explained their efforts regarding peaceful use of nuclear energy, nuclear non-proliferation and nuclear security. Discussion was made in two panels, entitled 'Effective and efficient measures to ensure nuclear non-proliferation based on domestic and foreign issues and the direction and role of technology development' and 'Roles of nuclear security COEs and future expectations'. In Panel Discussion 1, as the nuclear non-proliferation regime is facing various problems and challenges under current international circumstances, how to implement effective and efficient safeguards was discussed. In Panel Discussion 2, panelists discussed the following three points: 1. Current status of Nuclear Security Training and Support Centers and COEs, and Good Practice; 2. What these centers can do to enhance nuclear security (New role for COEs); 3. Regional cooperation in the Nuclear Security Training and Support Center (NSSC) and COEs in states, which the IAEA recommends establishing, and international cooperation and partnerships with international initiatives (New Role). Officials and experts from Japan, IAEA, the United States, France, Republic of Korea, and Indonesia participated in the panel and made contributions to active discussion. This report includes abstracts of keynote speeches, summaries of two panel discussions and materials of the

Direct activation of microcrystalline zeolites

NARCIS (Netherlands)

Ortiz-Iniesta, Maria Jesus; Heeres, Hero Jan; Melian-Cabrera, Ignacio

2013-01-01

In this work a direct activation route of zeolites is assessed. It consists of NH4-exchanging the as-synthesized solids before removing the organic template. Calcination afterwards serves to combust the organic template and creates the Bronsted sites directly; thus applying merely a single thermal

Nuclear fear and children: the impact of parental nuclear activism, responsivity, and fear

Energy Technology Data Exchange (ETDEWEB)

LaGuardia, M.R.

1986-01-01

This study examines the extent to which parental nuclear fear, parental activism, and parental responsivity is associated with children's (age 10) nuclear fear. Other associated variables investigated include: nuclear denial, general anxiety and fear, and the personal characteristics of sex, socio-economic status, and academic aptitude. Findings indicate that children attend to nuclear issues when their parents attend to a significant degree. Children's hopelessness about the arms race is increased as parents' worry about nuclear war increases. Children's fear about not surviving a nuclear war increases as parents' worry about survivability decreases. Children who have more general fears also indicated that they have a high level of hopelessness, pervasive worry, and much concern about being able to survive a nuclear war. Children with a high degree of general anxiety did not indicate high degrees of nuclear fears. Children with high academic aptitude were more knowledgeable about nuclear issues and expressed more fears about the nuclear threat. Boys demonstrated more knowledge about nuclear issues than girls, and girls expressed much more frequent fear and worry about the nuclear threat than boys. Parents of lower socio-economic statues (SES) expressed more denial about the nuclear threat and were more pro-military than the higher SES parents.

Inception of activities in the field of nuclear power in Romania

International Nuclear Information System (INIS)

Rascu, Paul Emil

2001-01-01

In the period 1960-1970 Romania's industry was strongly boosted and consequently an increased demand of energy resulted, what led to an energy consumption doubled every 5 years. As the classical fuel resources were directed as raw materials towards chemical industry, the nuclear power appeared as the sole serious alternating solution of the energy crisis. on a politico-economical basis as an optimal system the PHWR System was chosen, Canada as promoter of CANDU type reactors, becoming the principal partner in the development of Romania's nuclear power sector. Once the decision adopted several organisations, facilities and plants were created to ensure realization of the the majority of implied materials, equipment, and components for the PHWR reactors within the country's confines. So Feldioara plant for uranium ore concentration occurred for the mineral extracted in Apuseni and Calimani Mountains and Banat, the heavy water plant at T.Severin, the zirconium tubes plant at Giurgiu, steam generators different types of pumps manufactured at Grivita and IMGB plants and Bucharest and many other industrial units all over the country. To ensure the development of the industrial effort an institute for nuclear technology (ITN) was established having the main task of finding solutions, manufacturing procedures and testing the nuclear technologies specific to the PHWR system. Starting its activity as the Institut for Power Nuclear Reactor at Bucharest - Magurele it moved at Pitesti and later split into Institute for Nuclear Research and Nuclear Fuel Plant. The INR Pitesti was equipped with a 14 MW t , hot laboratories, benchscale testing units etc. Episodes of the early development of the Nuclear Research Institute, some of them amusing, are evoked as well as remarkable achievements obtained from that period until now

Sensitive nuclear activities in certain free world countries

International Nuclear Information System (INIS)

1986-01-01

A concise, ready reference is provided for use in reviewing license applications for exporting to several countries for possible need of referral to DOE. For each country, nuclear explosive and sensitive nuclear activities, such as enrichment, reprocessing, heavy water production, and fabrication of fuel containing plutonium, are listed, as well as the organizations and installations responsible for such activities. Some activities are also included that are not sensitive but are closely related and could easily lead to sensitive activities. The countries covered are: Australia, Belgium, Canada, Denmark, Federal Republic of Germany, France, Greece, Iceland, Italy, Japan, Luxembourg, the Netherlands, New Zealand, Norway, Portugal, Turkey, and the United States

Improved efficacy of soluble human receptor activator of nuclear factor kappa B (RANK) fusion protein by site-directed mutagenesis.

Science.gov (United States)

Son, Young Jun; Han, Jihye; Lee, Jae Yeon; Kim, HaHyung; Chun, Taehoon

2015-06-01

Soluble human receptor activator of nuclear factor kappa B fusion immunoglobulin (hRANK-Ig) has been considered as one of the therapeutic agents to treat osteoporosis or diseases associated with bone destruction by blocking the interaction between RANK and the receptor activator of nuclear factor kappa B ligand (RANKL). However, no scientific record showing critical amino acid residues within the structural interface between the human RANKL and RANK complex is yet available. In this study, we produced several mutants of hRANK-Ig by replacement of amino acid residue(s) and tested whether the mutants had increased binding affinity to human RANKL. Based on the results from flow cytometry and surface plasmon resonance analyses, the replacement of E(125) with D(125), or E(125) and C(127) with D(125) and F(127) within loop 3 of cysteine-rich domain 3 of hRANK-Ig increases binding affinity to human RANKL over the wild-type hRANK-Ig. This result may provide the first example of improvement in the efficacy of hRANK-Ig by protein engineering and may give additional information to understand a more defined structural interface between hRANK and RANKL.

Safety of nuclear installations: Future direction

International Nuclear Information System (INIS)

1990-04-01

The Workshop presentations were divided into sessions devoted to the following topics: Environmental impact of fossil fuel energy technologies (5 papers), Future needs for nuclear power (7 papers), Safety objectives (10 papers), Safety aspects of the next generation of current-type nuclear power plants (8 papers), Safety aspects of new designs and concepts for nuclear power plants (6 papers), Special safety issues: Safety aspects of new designs and concepts for nuclear power plants (5 papers), Safety aspects of new designs and processes for the nuclear fuel cycle (5 papers), Closing panel (3 papers), 12 poster presentations and a Summary of the Workshop. A separate abstract was prepared for each of these papers. Refs, figs and tabs

General activities of JAERI nuclear data center and Japanese nuclear data committee

International Nuclear Information System (INIS)

Fukahori, Tokio

1999-01-01

The nuclear data center of Japan Atomic Energy Research Institute (JAERI/NDC) is playing the role of Japanese domestic nuclear data center and gateway to foreign data centers. As the domestic nuclear data center, activities of JAERI/NDC are 1) compiling the Japanese Evaluated Nuclear Data Library (JENDL) for both general and special purposes, 2) importing and exporting nuclear data, 3) nuclear data services for the domestic users, and 4) organizing japanese Nuclear Data Committee (JNDC) as a secretariat. Compiled JENDL General Purpose Files up to now are JENDL-1, 2, 3, 3.1 and 3.2. The data for 340 nuclei in the energy range from 10 -5 eV to 20 MeV are available in JENDL-3.2. JENDL Special Purpose Files were also prepared in order to meet the requests from the specified application fields. JNDC has about 140 members. JNDC consists of Main Committee, Steering Committee, Subcommittee on Nuclear Data, Subcommittee on Reactor Constants, Subcommittee on Nuclear Fuel Cycle and Standing Groups. Above subcommittees are performing essential evaluation for the files described above, checking the JENDL files through the benchmark and integral testing as well as considering the standard group constant, and considering about evaluation of decay heat and nuclide generation/depletion and fission product yields. (author)

Activity report 2006 - INB - Brazilian Nuclear Industries Inc

International Nuclear Information System (INIS)

2006-01-01

This document reports the activities of Brazilian Nuclear Industry company during 2006 as follows: uranium isotope enrichment; production of nuclear fuel; mineral resources; finance and administration; planning and sales; quality, safety and environment, communication and social action; economic and financial management

Nuclear Regulatory Authority Personnel Educating and Training within the National Nuclear Program Development

International Nuclear Information System (INIS)

Potapov, V.; Goryaeva, T.; Moiseenko, A.; Kapralov, E.; Museridze, A.

2014-01-01

International Cooperation for Nuclear Education and Knowledge: Aims: •Creation of system of continuous personnel training for EvrAzES states in the field of nuclear power applications based on the international standards; •Development of educational service export as following of export of Russian nuclear technology; • Development of educational and scientific contacts to IAEA, WNU, ENEN, ANENT, biggest scientific centers and universities of USA, EU and Asia. Directions of activities: • Education. Transfer of knowledge to new generation, to new developing countries and cooperation with the nuclear education of leading powers; • Scientific enlightening activity – students, specialists, decision makers; • Informational and analytical work

Nuclear Localization of Mitochondrial TCA Cycle Enzymes as a Critical Step in Mammalian Zygotic Genome Activation.

Science.gov (United States)

Nagaraj, Raghavendra; Sharpley, Mark S; Chi, Fangtao; Braas, Daniel; Zhou, Yonggang; Kim, Rachel; Clark, Amander T; Banerjee, Utpal

2017-01-12

Transcriptional control requires epigenetic changes directed by mitochondrial tricarboxylic acid (TCA) cycle metabolites. In the mouse embryo, global epigenetic changes occur during zygotic genome activation (ZGA) at the 2-cell stage. Pyruvate is essential for development beyond this stage, which is at odds with the low activity of mitochondria in this period. We now show that a number of enzymatically active mitochondrial enzymes associated with the TCA cycle are essential for epigenetic remodeling and are transiently and partially localized to the nucleus. Pyruvate is essential for this nuclear localization, and a failure of TCA cycle enzymes to enter the nucleus correlates with loss of specific histone modifications and a block in ZGA. At later stages, however, these enzymes are exclusively mitochondrial. In humans, the enzyme pyruvate dehydrogenase is transiently nuclear at the 4/8-cell stage coincident with timing of human embryonic genome activation, suggesting a conserved metabolic control mechanism underlying early pre-implantation development. Copyright © 2017 Elsevier Inc. All rights reserved.

Calculation of radioactive inventory of activated parts for nuclear power unit and analysis of influence factors

International Nuclear Information System (INIS)

Liu Yang; Cai Qi; Lin Xiaoling

2011-01-01

Based on the operation characteristics of the nuclear power unit, the radioactive inventory of activated parts was calculated by ORIGEN2, and the effects of bum-up, operation mode and power change on the radioactive inventory for activated parts were analyzed. The results indicated that the radioactive inventory grew with the increasing of burn-up, and when the actual operation time was longer than the effective operation time, the increasing rate of nuclide activity approximated the burn-up increasing; Radioactive inventory of activated parts was influenced directly by the operation modes of the nuclear power unit, and under same reactor load, operation power and bum-up, the radioactive inventory for non-continuous operation mode is less than that for the continuous operation mode. Effects of operation modes on radioactive inventory reversed with half life of nuclides. Under same bum-up and longer operation time, the effect of operation power change on the radioactive inventory is not obvious, (authors)

The significance of human factors in nuclear activities

International Nuclear Information System (INIS)

Weil, L.; Berg, H.P.

1999-01-01

Human factors is an aspect increasingly investigated in the last few years in efforts and programmes for enhancing the operational safety of nuclear systems. Methodology has been elaborated for analysis and evaluation of human reliability, or development of instruments supporting the decisions to be taken by the operators at the man-control room interface of nuclear installations, as well as initial approaches to introduce organisational factors which may influence the man-machine function allocation, and thus are an element of the safety culture concept. The significance of human factors in nuclear activities, as well as activities at the national and international level for optimisation of the man-machine interface and the man-organisation interface are discussed. (orig./CB) [de

1988 activity report of the Nuclear Physics Institute

International Nuclear Information System (INIS)

1989-06-01

The 1988 activity report of the Nuclear Physics Institute (France) is presented. The report covers the scientific activities from the 1st October 1987 to the 30th September 1988 and the technical developments form the 1st October 1986 to the 30th September 1988. The main research fields include works on exotic nuclei, hot nuclei characteristics, physics of strangeness, nuclear structure studies by means of nuclear reactions, high spin states and radiochemistry. The project of an electron accelerator, delivering a 4 GeV beam (in a first step), is one of the Institute's priorities. The research works carried out in the Experimental Research and Theoretical Physics Divisions as well as technological projects are included [fr

Simulation of Thermal Neutron Transport Processes Directly from the Evaluated Nuclear Data Files

Science.gov (United States)

Androsenko, P. A.; Malkov, M. R.

The main idea of the method proposed in this paper is to directly extract thetrequired information for Monte-Carlo calculations from nuclear data files. The met od being developed allows to directly utilize the data obtained from libraries and seehs to be the most accurate technique. Direct simulation of neutron scattering in themmal energy range using file 7 ENDF-6 format in terms of code system BRAND has beer achieved. Simulation algorithms have been verified using the criterion x2

The directionality of the nuclear transport of the influenza A genome is driven by selective exposure of nuclear localization sequences on nucleoprotein

Directory of Open Access Journals (Sweden)

Panté Nelly

2009-06-01

Full Text Available Abstract Background Early in infection, the genome of the influenza A virus, consisting of eight complexes of RNA and proteins (termed viral ribonucleoproteins; vRNPs, enters the nucleus of infected cells for replication. Incoming vRNPs are imported into the nucleus of infected cells using at least two nuclear localization sequences on nucleoprotein (NP; NLS1 at the N terminus, and NLS2 in the middle of the protein. Progeny vRNP assembly occurs in the nucleus, and later in infection, these are exported from the nucleus to the cytoplasm. Nuclear-exported vRNPs are different from incoming vRNPs in that they are prevented from re-entering the nucleus. Why nuclear-exported vRNPs do not re-enter the nucleus is unknown. Results To test our hypothesis that the exposure of NLSs on the vRNP regulates the directionality of the nuclear transport of the influenza vRNPs, we immunolabeled the two NLSs of NP (NLS1 and NLS2 and analyzed their surface accessibility in cells infected with the influenza A virus. We found that the NLS1 epitope on NP was exposed throughout the infected cells, but the NLS2 epitope on NP was only exposed in the nucleus of the infected cells. Addition of the nuclear export inhibitor leptomycin B further revealed that NLS1 is no longer exposed in cytoplasmic NP and vRNPs that have already undergone nuclear export. Similar immunolabeling studies in the presence of leptomycin B and with cells transfected with the cDNA of NP revealed that the NLS1 on NP is hidden in nuclear exported-NP. Conclusion NLS1 mediates the nuclear import of newly-synthesized NP and incoming vRNPs. This NLS becomes hidden on nuclear-exported NP and nuclear-exported vRNPs. Thus the selective exposure of the NLS1 constitutes a critical mechanism to regulate the directionality of the nuclear transport of vRNPs during the influenza A viral life cycle.

Activities report of Instituto de Engenharia Nuclear - 1993

International Nuclear Information System (INIS)

1994-04-01

This is an activities report of 1993 year from Nuclear Engineering Institute - IEN, Brazilian CNEN. It achieves research and development in science and technology in nuclear areas and correlative, generating knowledge, products and services in society benefit. Its major activities are: production and supply of 30 equipment for radioprotection and nuclear physics, and the project and construction of monitoring system of neutron flux and radioprotection of Triga reactor of CDTN; project and construction of an actuation/attenuation circuit system of ATWS (anticipated transient without scram) at Angra-1 nuclear power plant; obtention of rare earths; development and optimization of a computational program to three-dimensional fluid mechanic - NSD 3D; study of technical and economical feasibility to the implantation, at IEN, of a big size irradiator for the sterilization, using ionizing radiation, of hospital, pharmaceutical and cosmetic goods. (C.M.). 7 tabs, 2 graphs

Nuclear activation techniques in the life sciences

Energy Technology Data Exchange (ETDEWEB)

NONE

1978-08-15

The analysis of the elemental composition of biological materials is presently undertaken on a large scale in many countries around the world One recent estimate puts the number of such analyses at six thousand million single-element determinations per year, of which about sixteen million are for the so-called trace elements. Since many of these elements are known to play an important role in relation to health and disease, there is considerable interest in learning more about the ways in which they function in living organisms. Nuclear activation techniques, generally referred to collectively as 'activation analysis' constitute an important group of methods for the analysis of the elemental composition of biological materials. Generally they rely on the use of a research nuclear reactor as a source of neutrons for bombarding small samples of biological material, followed by a measurement of the induced radioactivity to provide an estimate of the concentrations of elements. Other methods of activation with Bremsstrahlung and charged particles may also be used, and have their own special applications. These methods of in vitro analysis are particularly suitable for the study of trace elements. Another important group of methods makes use of neutrons from isotopic neutron sources or neutron generators to activate the whole body, or a part of the body, of a living patient. They are generally used for the study of major elements such as Ca, Na and N. All these techniques have previously been the subject of two symposia organised by the IAEA in 1967 and 1972. The present meeting was held to review some of the more recent developments in this field and also to provide a viewpoint on the current status of nuclear activation techniques vis-a-vis other competing non-nuclear methods of analysis.

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Germany

International Nuclear Information System (INIS)

2011-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Definitions; Licensing requirements); 4. Nuclear installations (Licensing regime; Protection of the environment against radiation effects; Emergency response; Surveillance of installations and activities); 5. Trade in nuclear materials and equipment; 6. Radiation protection (General; Principal elements of the Radiation Protection Ordinance; Additional radiation protection norms); 7. Radioactive waste management (Atomic Energy Act 2002; Radiation Protection Ordinance; International obligations); 8. Non-proliferation and physical protection (Non-proliferation regime; Physical protection regime); 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities: Federal authorities (Federal Minister for the Environment, Nature Conservation and Nuclear Safety, Federal Minister for Education and Research, Federal Minister of Finance, Federal Minister of Transport, Building and Urban Affairs, Federal Minister for Economy and Technology, Federal Minister of Defence, Federal Office for Radiation Protection - BfS, Federal Office of Economics and Export Control); Authorities of the Laender; 2. Advisory bodies (Reactor Safety Commission - RSK; Radiation Protection Commission - SSK; Disposal Commission - ESK; Nuclear Technology

Civil liability on nuclear activities; Responsabilidade civil nas atividades nucleares

Energy Technology Data Exchange (ETDEWEB)

Bittar, C A

1983-12-31

The civil liability theory in the actual context is shown in the first and second part of this thesis, including some considerations about concepts and types of liability in dangerous and not dangerous activities. In the third part, the legal aspects of civil liability for the nuclear activities are analyzed, with a brief description of the history evolution, standard systems, inspection corporation and juridical regulation. (C.G.C.). 239 refs.

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Republic of Korea

International Nuclear Information System (INIS)

2009-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment; 6. Radiation protection) (Protection of workers; Protection of the public); 7. Radioactive waste management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Minister of Education, Science and Technology, including the Nuclear Energy Bureau; Minister of Knowledge Economy); 2. Advisory bodies (Atomic Energy Commission; Atomic Energy Safety Commission); 3. Public and semi-public agencies (Korean Atomic Energy Research Institute - KAERI; Korean Institute for Nuclear Safety - KINS; Korean Electric Power Company - KEPCO; Korean Hydro and Nuclear Power - KHNP)

Global development of advanced nuclear power plants, and related IAEA activities

International Nuclear Information System (INIS)

2006-09-01

Renewed interest in the potential of nuclear energy to contribute to a sustainable worldwide energy mix is underlining the IAEA's statutory role in fostering the peaceful uses of nuclear energy, in particular the need for effective exchanges of information and collaborative research and technology development among Member States on advanced nuclear power technologies deployable in the near term as well as in the longer term. For applications in the medium to longer term, with rising expectations for the role of nuclear energy in the future, technological innovation has become a strong focus of nuclear power technology developments by many Member States. To meet Member States' needs, the IAEA conducts activities to foster information exchange and collaborative research and development in the area of advanced nuclear reactor technologies. These activities include coordination of collaborative research, organization of international information exchange, and analyses of globally available technical data and results, with a focus on reducing nuclear power plant capital costs and construction periods while further improving performance, safety and proliferation resistance. In other activities, evolutionary and innovative advances are catalyzed for all reactor lines such as advanced water cooled reactors, high temperature gas cooled reactors, liquid metal cooled reactors and accelerator driven systems, including small and medium sized reactors. In addition, there are activities related to other applications of nuclear energy such as seawater desalination, hydrogen production, and other process heat applications. This brochure summarizes the worldwide status and the activities related to advanced nuclear power technology development and related IAEA activities. It includes a list of the collaborative research and development projects conducted by the IAEA, as well as of the status reports and other publications produced

CO LINE EMISSION FROM COMPACT NUCLEAR STARBURST DISKS AROUND ACTIVE GALACTIC NUCLEI

Energy Technology Data Exchange (ETDEWEB)

Armour, J. N.; Ballantyne, D. R., E-mail: jarmour3@gatech.edu [Center for Relativistic Astrophysics, School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, GA 30332-0430 (United States)

2012-06-20

There is substantial evidence for a connection between star formation in the nuclear region of a galaxy and growth of the central supermassive black hole. Furthermore, starburst activity in the region around an active galactic nucleus (AGN) may provide the obscuration required by the unified model of AGNs. Molecular line emission is one of the best observational avenues to detect and characterize dense, star-forming gas in galactic nuclei over a range of redshift. This paper presents predictions for the carbon monoxide (CO) line features from models of nuclear starburst disks around AGNs. These small-scale ({approx}< 100 pc), dense and hot starbursts have CO luminosities similar to scaled-down ultra-luminous infrared galaxies and quasar host galaxies. Nuclear starburst disks that exhibit a pc-scale starburst and could potentially act as the obscuring torus show more efficient CO excitation and higher brightness temperature ratios than those without such a compact starburst. In addition, the compact starburst models predict strong absorption when J{sub Upper} {approx}> 10, a unique observational signature of these objects. These findings allow for the possibility that CO spectral line energy distributions (SLEDs) could be used to determine if starburst disks are responsible for the obscuration in z {approx}< 1 AGNs. Directly isolating the nuclear CO line emission of such compact regions around AGNs from galactic-scale emission will require high-resolution imaging or selecting AGN host galaxies with weak galactic-scale star formation. Stacking individual CO SLEDs will also be useful in detecting the predicted high-J features.

Heat-shock stress activates a novel nuclear import pathway mediated by Hikeshi

OpenAIRE

Imamoto, Naoko; Kose, Shingo

2012-01-01

Cellular stresses significantly affect nuclear transport systems. Nuclear transport pathways mediated by importin β-family members, which are active under normal conditions, are downregulated. During thermal stress, a nuclear import pathway mediated by a novel carrier, which we named Hikeshi, becomes active. Hikeshi is not a member of the importin β family and mediates the nuclear import of Hsp70s. Unlike importin β family-mediated nuclear transport, the Hikeshi-mediated nuclear import of Hsp...

THE ECONOMICS OF REPROCESSING vs. DIRECT DISPOSAL OF SPENT NUCLEAR FUEL

International Nuclear Information System (INIS)

Bunn, Matthew; Fetter, Steve; Holdren, John P.; Zwaan, Bob van der

2003-01-01

This report assesses the economics of reprocessing versus direct disposal of spent nuclear fuel. The breakeven uranium price at which reprocessing spent nuclear fuel from existing light-water reactors (LWRs) and recycling the resulting plutonium and uranium in LWRs would become economic is assessed, using central estimates of the costs of different elements of the nuclear fuel cycle (and other fuel cycle input parameters), for a wide range of range of potential reprocessing prices. Sensitivity analysis is performed, showing that the conclusions reached are robust across a wide range of input parameters. The contribution of direct disposal or reprocessing and recycling to electricity cost is also assessed. The choice of particular central estimates and ranges for the input parameters of the fuel cycle model is justified through a review of the relevant literature. The impact of different fuel cycle approaches on the volume needed for geologic repositories is briefly discussed, as are the issues surrounding the possibility of performing separations and transmutation on spent nuclear fuel to reduce the need for additional repositories. A similar analysis is then performed of the breakeven uranium price at which deploying fast neutron breeder reactors would become competitive compared with a once-through fuel cycle in LWRs, for a range of possible differences in capital cost between LWRs and fast neutron reactors. Sensitivity analysis is again provided, as are an analysis of the contribution to electricity cost, and a justification of the choices of central estimates and ranges for the input parameters. The equations used in the economic model are derived and explained in an appendix. Another appendix assesses the quantities of uranium likely to be recoverable worldwide in the future at a range of different possible future prices

IAEA safeguards and detection of undeclared nuclear activities

Energy Technology Data Exchange (ETDEWEB)

Harry, R.J.S.

1996-03-01

Verfication of State declarations is an essential feature of IAEA safeguards. The issue of completeness of the declaration of all nuclear material, nuclear activities and nuclear facilities arises only in full scope safeguards, like those pursuant to NPT. Concentrating on the accountability aspect of nuclear material, the NPT safeguards system has achieved a high level of objective and quantified performance. Some of the basic ideas of the drafters of INFCIRC/153 (corrected) have been stalled. Non-proliferation concerns demand also for a detection probability for undeclared nuclear activities. Following the example of the Chemical Weapon Convention (CWC), advanced detection techniques are proposed, which go beyond the classical nuclear material accountability approach. Recent proposals for additional measures to strengthen IAEA safeguards conform to rules of NPT and related safeguards. Some proposals have been agreed generally, others can only be implemented on a voluntary basis between the State and the IAEA. The implementation will require additional resources and support for the IAEA. Great care is required to maintain the existing capability of the IAEA for a technically sound, independent, objective, and internationally acceptable judgement with available resources, and at the same time to change emphasis on certain elements of the existing safeguards system. (orig.).

IAEA safeguards and detection of undeclared nuclear activities

International Nuclear Information System (INIS)

Harry, R.J.S.

1996-03-01

Verfication of State declarations is an essential feature of IAEA safeguards. The issue of completeness of the declaration of all nuclear material, nuclear activities and nuclear facilities arises only in full scope safeguards, like those pursuant to NPT. Concentrating on the accountability aspect of nuclear material, the NPT safeguards system has achieved a high level of objective and quantified performance. Some of the basic ideas of the drafters of INFCIRC/153 (corrected) have been stalled. Non-proliferation concerns demand also for a detection probability for undeclared nuclear activities. Following the example of the Chemical Weapon Convention (CWC), advanced detection techniques are proposed, which go beyond the classical nuclear material accountability approach. Recent proposals for additional measures to strengthen IAEA safeguards conform to rules of NPT and related safeguards. Some proposals have been agreed generally, others can only be implemented on a voluntary basis between the State and the IAEA. The implementation will require additional resources and support for the IAEA. Great care is required to maintain the existing capability of the IAEA for a technically sound, independent, objective, and internationally acceptable judgement with available resources, and at the same time to change emphasis on certain elements of the existing safeguards system. (orig.)

Direct measurement of nuclear cross-section of astrophysical interest: Results and perspectives

Science.gov (United States)

Cavanna, Francesca; Prati, Paolo

2018-03-01

Stellar evolution and nucleosynthesis are interconnected by a wide network of nuclear reactions: the study of such connection is usually known as nuclear astrophysics. The main task of this discipline is the determination of nuclear cross-section and hence of the reaction rate in different scenarios, i.e. from the synthesis of a few very light isotopes just after the Big Bang to the heavy element production in the violent explosive end of massive stars. The experimental determination of reaction cross-section at the astrophysical relevant energies is extremely difficult, sometime impossible, due to the Coulomb repulsion between the interacting nuclei which turns out in cross-section values down to the fbar level. To overcome these obstacles, several experimental approaches have been developed and the adopted techniques can be roughly divided into two categories, i.e. direct and indirect methods. In this review paper, the general problem of nuclear astrophysics is introduced and discussed from the point of view of experimental approach. We focus on direct methods and in particular on the features of low-background experiments performed at underground laboratory facilities. The present knowledge of reactions involved in the Big Bang and stellar hydrogen-burning scenarios is discussed as well as the ongoing projects aiming to investigate mainly the helium- and carbon-burning phases. Worldwide, a new generation of experiment in the MeV range is in the design phase or at the very first steps and decisive progresses are expected to come in the next years.

Nuclear energy demon

International Nuclear Information System (INIS)

Ruckdeschel, W.

1980-01-01

The German nuclear power plants (here Grafenrheinfeld, Isar) dispose of large-scale provisions echeloned in depth against release of activity due to incidents. According to human judgement environmental risks can be excluded. The direct risk is explained in the Rasmussen-study and in the German Risk Study Nuclear Power Plants. The Inhaber-study represents an important contribution to the risk assessment. (DG) [de

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Greece

International Nuclear Information System (INIS)

2015-01-01

In Greece, there are no nuclear power plants and nuclear energy is not considered as an option in the foreseeable future. There is, however, one nuclear research reactor (in extended shutdown since 2014) and one sub-critical assembly. Radioactive waste originating from medicine, research and industry is classified as low level. Although there is no framework act dealing comprehensively with the different aspects of nuclear energy, there are various laws, decrees and regulations of a more specific nature governing several aspects of nuclear activities. This paper gives information on the general regulatory regime (mining regime, radioactive substances, nuclear fuel and equipment, nuclear installations (licensing and inspection, including nuclear safety, emergency response, trade in nuclear materials and equipment, radiation protection, radioactive waste management, nuclear security, transport, nuclear third party liability) and on the institutional framework with the regulatory and supervisory authorities (Greek Atomic Energy Commission (EEAE))

National program for the fostering and development of safety culture in the nuclear activities in Cuba

International Nuclear Information System (INIS)

Ferro Fernandez, R.; Guillen Campos, A.

2002-01-01

Since its appearance, as a result of the investigations of the accident in the Chernobyl Nuclear Power Plant, the term Safety Culture has been considered a key element to achieve a high level of safety in the nuclear installations, becoming a basic safety principle, internationally. The Cuban regulatory authority understood from very early the importance of the promotion and development of attitudes and characteristics in the organizations and personnel involved in the nuclear sector, reflecting a high Safety Culture, in order to propitiate a higher involvement of all employees in safety, contributing this way to the prevention of accidents in the nuclear facilities. Although the Cuban Nuclear Program was significantly reduced in the 90's, the regulatory authority has continued working in this direction and assimilated all the international experience for its application in its strategies for the development of a Safety Culture in the nuclear activities in the country. The present work summarizes the Cuban experience in the establishment of a National Program for the fostering and development of a Safety Culture. (author)

Direction of Technology Development for Nuclear Power Plants at the O and M Phase

Energy Technology Data Exchange (ETDEWEB)

Jung, Insu; Park, Hwanpyo; Kim, Younghyun [Korea Institute of Construction Technology, Goyang (Korea, Republic of)

2014-05-15

Recently, Korea has attempted to advance overseas markets by securing competitive power in nuclear power technology. In order to develop and operate overall construction management systems with Korea's own brand equipped with sufficient applicability and competitive power in the market abroad and to ensure equal competitive power with other foreign advanced companies of nuclear power plants, Korea has launched a project called 'Data Centric Integration/Automation Technology for NP Project Management System' since July 2011. This project is divided into two phases: the first phase from 2012 to 2016 realizes EPCS stage, and the second phase from 2017 to 2020 extends to O and M stage. Appropriate technology development planning must be established if 'Data Centric Integration/Automation Technology for NP Project Management System' conducted at the first phase would extend to O and M stage at the second phase. Therefore, this study aimed at drawing out the direction of technology development based on present analysis of process at the operational phase of nuclear power plants in Korea conducted as previous study. This study analyzed current operation and maintenance systems first, analyzing the results of differences between the operation process of nuclear plants in Korea which was suggested at the previous study and the process of the Korea Hydro and Nuclear Power Co., Ltd. (hereafter referred to as 'KHNP') and drawing out the direction of technology development for nuclear power plants at the operational phase from the viewpoint of life cycle.

Direction of Technology Development for Nuclear Power Plants at the O and M Phase

International Nuclear Information System (INIS)

Jung, Insu; Park, Hwanpyo; Kim, Younghyun

2014-01-01

Recently, Korea has attempted to advance overseas markets by securing competitive power in nuclear power technology. In order to develop and operate overall construction management systems with Korea's own brand equipped with sufficient applicability and competitive power in the market abroad and to ensure equal competitive power with other foreign advanced companies of nuclear power plants, Korea has launched a project called 'Data Centric Integration/Automation Technology for NP Project Management System' since July 2011. This project is divided into two phases: the first phase from 2012 to 2016 realizes EPCS stage, and the second phase from 2017 to 2020 extends to O and M stage. Appropriate technology development planning must be established if 'Data Centric Integration/Automation Technology for NP Project Management System' conducted at the first phase would extend to O and M stage at the second phase. Therefore, this study aimed at drawing out the direction of technology development based on present analysis of process at the operational phase of nuclear power plants in Korea conducted as previous study. This study analyzed current operation and maintenance systems first, analyzing the results of differences between the operation process of nuclear plants in Korea which was suggested at the previous study and the process of the Korea Hydro and Nuclear Power Co., Ltd. (hereafter referred to as 'KHNP') and drawing out the direction of technology development for nuclear power plants at the operational phase from the viewpoint of life cycle

Chicago section activities to enhance public acceptance of nuclear power

International Nuclear Information System (INIS)

Snyder, T.L.; Keffer, J.W.

1992-01-01

The Chicago section of the American Nuclear Society (ANS) is an active organization with ∼450 members. The local section territory encompasses northern Illinois and includes in its territory all six of Commonwealth Edison Company's (CECo's) nuclear generating stations as well as Argonne National Laboratory (ANL). Included in the territory are several large engineering firms - ABB Impell, Bechtel, Fluor Daniel, and Sargent ampersand Lundy. The national headquarters of the ANS is also located within the local section boundaries. All these organizations are represented in the local section membership and provide access to abundant technical resources that can be used to enhance public acceptance of nuclear power. An important attribute of any local section that enables it to perform interesting programs and be active in the community is its financial resources. The Chicago section has a strong financial base because of its ability to raise funds by participating in and sponsoring ANS topical and other meetings. For instance, in 1991, they sponsored and were actively involved in the Emergency Preparedness Topical Meeting held in Chicago. In 1992, they were actively involved in sponsoring the organizational activities of the ANS/ENS International Meeting, which will celebrate the 50th year of nuclear fission. The financial and technical resources of the Chicago section continue to contribute to a successful program of public education and public acceptance activities regarding the nuclear industry

Management of nuclear PRs activity with optimal conditions

International Nuclear Information System (INIS)

Ohnishi, Teruaki

1997-01-01

A methodology is proposed to derive optimal conditions for the activity of nuclear public relations (PRs). With the use of data-bases available at present, expressions were derived which connect the budget allocated for the PRs activity with the intensity of stimulus for four types of activity of the advertisement in the press, the exclusive publicity, the pamphlet and the advertisement on television. Optimal conditions for the activity were determined by introducing a model describing a relation between the intensity of stimulus and the extent of the change of public's attitude to nuclear energy, namely the effect of PRs activity, and also by giving the optimal ratio of allocation of the budget among the four types of activity as a function of cost versus effectiveness of each type. Those optimal conditions, being for the ratio of allocation of the budget, the execution time and the intensity of each type of activity at that time, vary depending on the number of household in a target region, the target class of demography, the duration time of activity, and the amount of budget for the activity. It becomes clear from numerical calculation that the optimal conditions and the effect of activity show quite strong non-linearity with respect to the variation of those variables, and that the effect of PRs activity averaged over all public in the target region becomes to be maximum, in Japan, when the activity is executed with the optimal conditions determined for the target class of middle- and advanced-aged women. The management of nuclear PRs activity becomes possible by introducing such a method of fixation of optimal conditions for the activity as described here. (author)

Experimental Nuclear Physics Activity in Italy

Science.gov (United States)

Chiavassa, E.; de Marco, N.

2003-04-01

The experimental Nuclear Physics activity of the Italian researchers is briefly reviewed. The experiments, that are financially supported by the INFN, are done in strict collaboration by more than 500 INFN and University researchers. The experiments cover all the most important field of the modern Nuclear Physics with probes extremely different in energy and interactions. Researches are done in all the four National Laboratories of the INFN even if there is a deeper involvement of the two national laboratories expressly dedicated to Nuclear Physics: the LNL (Laboratorio Nazionale di Legnaro) and LNS (Laboratorio Nazionale del Sud) where nuclear spectroscopy and reaction dynamics are investigated. All the activities with electromagnetic probes develops in abroad laboratories as TJNAF, DESY, MAMI, ESFR and are dedicated to the studies of the spin physics and of the nucleon resonance; hypernuclear and kaon physics is investigated at LNF. A strong community of researchers work in the relativistic and ultra-relativistic heavy ions field in particular at CERN with the SPS Pb beam and in the construction of the ALICE detector for heavy-ion physics at the LHC collider. Experiments of astrophysical interest are done with ions of very low energy; in particular the LUNA accelerator facility at LNGS (Laboratorio Nazionale del Gran Sasso) succeeded measuring cross section at solar energies, below or near the solar Gamow peak. Interdisciplinary researches on anti-hydrogen atom spectroscopy and on measurements of neutron cross sections of interest for ADS development are also supported.

Non-coplanar polychlorinated biphenyls (PCBs) are direct agonists for the human pregnane-X receptor and constitutive androstane receptor, and activate target gene expression in a tissue-specific manner

International Nuclear Information System (INIS)

Al-Salman, Fadheela; Plant, Nick

2012-01-01

The polychlorinated biphenyl group possesses high environmental persistence, leading to bioaccumulation and a number of adverse effects in mammals. Whilst coplanar PCBs elicit their toxic effects through agonism of the aryl hydrocarbon receptor; however, non-coplanar PCBs are not ligands for AhR, but may be ligands for members of the nuclear receptor family of proteins. To better understand the biological actions of non-coplanar PCBs, we have undertaken a systematic analysis of their ability to activate PXR and CAR-mediated effects. Cells were exposed to a range of non-coplanar PCBs (99, 138, 153, 180 and 194), or the coplanar PCB77: Direct activation of PXR and CAR was measured using a mammalian receptor activation assay in human liver cells, with rifampicin and CITCO used as positive controls ligands for PXR and CAR, respectively; activation of target gene expression was examined using reporter gene plasmids for CYP3A4 and MDR1 transfected into liver, intestine and lung cell lines. Several of the non-coplanar PCBs directly activated PXR and CAR, whilst the coplanar PCB77 did not. Non-coplanar PCBs were also able to activate PXR/CAR target gene expression in a substitution- and tissue-specific manner. Non-coplanar PCBs act as direct activators for the nuclear receptors PXR and CAR, and are able to elicit transcriptional activation of target genes in a substitution- and tissue-dependent manner. Chronic activation of PXR/CAR is linked to adverse effects and must be included in any risk assessment of PCBs. -- Highlights: ► Several Non-coplanar PCBs are able to directly activate both PXR and CAR in vitro. ► PCB153 is the most potent direct activator of PXR and CAR nuclear receptors. ► Non-coplanar PCB activation of CYP3A4/MDR1 reporter genes is structure-dependent. ► Non-coplanar PCB activate CYP3A4/MDR1 reporter genes in a tissue-dependent. ► PCB153 is the most potent activator of PXR/CAR target gene in all tissues.

Activities of Japan Nuclear Technology Institute Japanese TSO of Industry

International Nuclear Information System (INIS)

Nagata, T.

2010-01-01

Nuclear energy is a superior form of energy in that it delivers stable power supplies and counters global warming, and it is important to promote nuclear power generation as the core power sources for a nation. However, the Japanese environment surrounding nuclear energy is changing drastically, following the liberalization of market and recent series of troubles or falsifications shaking public confidence in nuclear energy. In the above mentioned situation, nuclear industries and organizations must fulfill their individual roles, and amass its strength to work toward enhancing industry initiatives for safety activities, securing safe / stable plant operations, restoring public confidence and initiate revitalization of nuclear energy operations. The Japan Nuclear Technology Institute (JANTI) has been established as a new entity for supporting and leading the industry's further progress in March 2005. Members of JANTI are not only utilities but also component manufacturers and constructors. JANTI enhance the technological foundation of nuclear energy based on scientific and rational data, coordinates its use among a wide range of relevant organizations, and helps members enhance their voluntary safety activities. At the same time, it is independent of utilities, and exercises a function of checking industry at the objective, third-party standpoint. As for the activities of JANTI itself, information disclosure and the establishment of a council comprising external members will enhance administration transparency. (author)

Testing of different data libraries in activation analysis of concrete and graphite from nuclear installations

International Nuclear Information System (INIS)

Cometto, M.; Ancius, D.; Ridikas, D.

2003-01-01

With the aging of the nuclear park, decommissioning and dismantling of nuclear installations after their service life is becoming an important issue for the nuclear industry. The radiological characterisation of the equipment and structures present in the reactor and its environment is an essential stage in a decommissioning project since it permits to define and optimize the decommissioning strategy and the disassembling operations. In addition, correct activation estimates are essential for determining the quantity and the nature of the radiological waste generated during decommissioning. The adoption of efficient dismantling procedures and the optimization of the mass flow going to different waste repositories might reduce substantially the total cost of decommissioning. The present work has been done in the framework of the decommissioning and dismantling of the experimental reactor of the University of Strasbourg (RUS). A methodology that combines theoretical calculations and direct measurements has been developed for determining the long-term induced activity in the graphite, concrete and materials present in the reactor. After characterisation of the different elements present in the reactor, it is then possible to plan efficiently the disassembling and dismantling of the system and to optimise the mass flow going to different waste repositories. From a scientific perspective, the comparison of theoretical predictions with experimental values validates the approach and the methodology used in the present study and tests the consistency and the reliability of the nuclear data used for activation analysis. (orig.)

Recent activities of the nuclear fuel technology department of Cekmece Nuclear Research and Training Center

International Nuclear Information System (INIS)

Can, S.; Aybers, T.; Kopuz, B.

1997-01-01

The Nuclear Fuel Technology Department (NFTD) in CNRTC is a unique unit in Turkey in charge of performing all activities in nuclear fuel field. It has a pilot plant on uranium refining and conversion to UO 2 since 1986. Presently, its R and D activities are focused on pellet manufacturing and characterization: UO 2 , ThO 2 and (Th,U)O 2 . The studies on thorium dioxide fuel include to obtain ThO 2 pellets from thorium nitrate and mixed (Th,U)O 2 pellets. A study on evaluation of different fuel cycle options in accordance with nuclear energy planning in Turkey is also going on. (author)

Applied nuclear physics group - activities report. 1977-1997; Grupo de fisica nuclear aplicada - relatorio de atividades. 1977-1997

Energy Technology Data Exchange (ETDEWEB)

Appoloni, Carlos Roberto

1998-06-01

This report presents the activities conducted by the Applied Nuclear Physics group of the Londrina State University - Applied Nuclear Physics Laboratory - Brazil, from the activities beginning (1977) up to the end of the year 1997.

The Role of Nuclear Diplomacy

International Nuclear Information System (INIS)

Samodra Sriwidjaja

2007-01-01

In the midst of nuclear countries and non-nuclear countries in the framework of non-proliferation and disarmament, Indonesia has played an important role. Indonesia has been actively involved in each activity at the international level to create a world free from nuclear weapons. This involvements needs to be maintained and increased in the years to come. As a large country, Indonesia should play a key role in the field of nuclear diplomacy. All of the efforts of nuclear diplomacy as mentioned above had a clear objective to support Indonesia's energy program, at the institution framework as well as capacity building. Indonesia's effort is also directed to attain appropriated international public acceptance. (author)

The Role of Nuclear Diplomacy

Directory of Open Access Journals (Sweden)

S. Sriwidjaja

2007-01-01

Full Text Available In the midst of nuclear countries and non-nuclear countries in the framework of non-proliferation and disarmament, Indonesia has played an important role. Indonesia has been actively involved in each activity at the international level to create a world free from nuclear weapons. This involvements needs to be maintained and increased in the years to come. As a large country, Indonesia should play a key role in the field of nuclear diplomacy. All of the efforts of nuclear diplomacy as mentioned above had a clear objective to support Indonesia’s energy program, at the institution framework as well as capacity building. Indonesia’s effort is also directed to attain appropriated international public acceptance.

Nuclear reactor melt-retention structure to mitigate direct containment heating

International Nuclear Information System (INIS)

Tutu, N.K.; Ginsberg, T.; Klages, J.R.

1991-01-01

This patent describes a nuclear reactor melt-retention structure that functions to retain molten core material within a melt retention chamber to mitigate the extent of direct containment heating. The structure being adapted to be positioned within or adjacent to a pressurized or boiling water nuclear reactor containment building at a location such that at least a portion of the melt retention structure is lower than and to one side of the nuclear reactor pressure vessel, and such that the structure is adjacent to a gas escape channel means that communicates between the reactor cavity and the containment building of the reactor. It comprises a melt-retention chamber, wall means defining a passageway extending between the reactor cavity underneath the reactor pressure vessel and one side of the chamber, the passageway including vent means extending through an upper wall portion thereof. The vent means being in communication with the upper region of the reactor containment building, whereby gas and steam discharged from the reactor pressure vessel are vented through the passageway and vent means into the gas-escape channel means and the reactor containment building

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - United Kingdom

International Nuclear Information System (INIS)

2003-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining Regime; 3. Radioactive Substances; 4. Nuclear Installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in Nuclear Materials and Equipment; 6. Radiation Protection; 7. Radioactive Waste Management; 8. Non-Proliferation and Physical Protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and Supervisory Authorities (Department of Trade and Industry - DTI; Secretary of State for Environment, Food and Rural Affairs and the Secretary of State for Health; Secretary of State for Transport; Secretary of State for Education); 2. Advisory Bodies (Medical Research Council - MRC; Nuclear Safety Advisory Committee; Radioactive Waste Management Advisory Committee); 3. Public and Semi-Public Agencies (United Kingdom Atomic Energy Authority - UKAEA; Health and Safety Commission and Executive - HSC/HSE; National Radiological Protection Board - NRPB; Environment Agencies; British Nuclear Fuels plc. - BNFL; Amersham International plc.; The National Nuclear Corporation Ltd. - NNC; United Kingdom Nirex Ltd.; Magnox Electric plc.; British Energy Generation Ltd.; Scottish Electricity Generator Companies; British Energy Generation Ltd.; Regional Electricity Companies in England and Wales)

OECD and NEA countries' national frameworks for nuclear activities

International Nuclear Information System (INIS)

Kuzeyli, Kaan

2016-01-01

To assist its member countries in maintaining and further developing, through international co-operation, the scientific, technological and legal bases required for a safe, environmentally friendly and economical use of nuclear energy for peaceful purposes, the NEA serves as a forum for sharing and analysing information and experience among its member countries in order to pool and maintain their technical expertise and human infrastructure and to support nuclear activities by providing them with nuclear policy analyses. Comprehensive and effective legal regimes are necessary to help achieve confidence in the peaceful use of nuclear energy. These regimes, whose goals are to protect the public and the natural environment from the risks inherent in such activities, include regulation at a national level, co-operation at bilateral and multilateral levels and international harmonisation of national policies and legislation through adherence to international conventions. Regimes need to be strong enough to set and enforce limits, and flexible enough to keep pace with technological advances and changing public concerns. The NEA collects, analyses and disseminates information on nuclear law in general and on topical nuclear legal issues in particular. Nuclear law is the body of special legal norms created to regulate the conduct of legal or natural persons engaged in activities related to fissionable materials, ionising radiation and exposure to natural sources of radiation. In 1995, the NEA began publishing country profiles entitled Nuclear Legislation in OECD and NEA Countries - Regulatory and Institutional Frameworks for Nuclear Activities or the 'Grand Orange', a name which was adopted and became widely used because of the colour of the initial cover. Since 2006, these country profiles can be downloaded free online both in English and French from the NEA web site. The NEA endeavours to complement country profiles by publishing online an English, non

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - Italy

International Nuclear Information System (INIS)

2010-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General regulatory regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment; 4. Nuclear installations (Licensing and inspection, including nuclear safety; Protection of the environment against radiation effects; Emergency response); 5. Trade in nuclear materials and equipment (General provisions; Patents); 6. Radiation Protection (Protection of workers; Protection of the public; Protection of the environment); 7. Radioactive Waste Management; 8. Non-proliferation and physical protection; 9. Transport; 10. Nuclear Third Party Liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Interdepartmental Committee for Economic Planning; Nuclear Safety Agency; Prime Minister; Minister for Economic Development; Minister for Labour and Social Security; Minister for Health; Minister for the Environment; Minister for the Interior; Minister for Transport and Navigation; Minister for Foreign Trade (now incorporated in Ministry for Economic Development); Minister for Education; Treasury Minister; Minister for Universities and for Scientific and Technical Research; Minister for Foreign Affairs; State Advocate General); 2. Advisory bodies (Inter-ministerial Council for Consultation and Co-ordination; Coordinating Committee for Radiation Protection of Workers and the Public; Regional and Provincial Commissions for Public Health Protection

Summary of nuclear fuel reprocessing activities around the world

International Nuclear Information System (INIS)

Mellinger, P.J.; Harmon, K.M.; Lakey, L.T.

1984-11-01

This review of international practices for nuclear fuel reprocessing was prepared to provide a nontechnical summary of the current status of nuclear fuel reprocessing activities around the world. The sources of information are widely varied

ILK statement about the proposed EU directives on nuclear safety and the management of radioactive waste

International Nuclear Information System (INIS)

2003-01-01

In November 2002, the European Commission proposed a package of measures for a community concept of the EU on nuclear safety. It includes a proposed directive on the safety of nuclear installations during operating and decommissioning, and a proposed directive on the management of radioactive waste. In the opinion of the International Nuclear Committee (ILK), the competences and obligations of the member states and their safety authorities must be preserved in the future. Primary responsibility for plant safety rests with the operator. This objective is served by transparent, harmonized EU-wide safety standards. New standards and definitions are not generally required. Harmonized safety standards to be developed should initially be limited to nuclear power plants because of the fundamental differences in design of nuclear facilities. The Commission should obtain the technical competence required to perform the duties arising from the application of the proposed directive. Formal inspections by the Commission of the national regulatory authorities are not necessary. Instead, a peer review process will be the better solution. A reporting system at three-year intervals is generally regarded as the most effective approach. The ILK considers the tight schedule for final storage, especially of high-level waste, problematic. Joint repository projects, also for countries with low waste arisings, are suitable approaches. The envisaged reports about the state of radioactive waste management should be integrated into the reporting systems under other international agreements. The Commission's intention to intensify cooperation in the field of research is welcomed. (orig.) [de

Managing nuclear knowledge: IAEA activities and international coordination. Asian Network for Education in Nuclear Technology (ANENT)

International Nuclear Information System (INIS)

2007-07-01

This CD-ROM is attached to the booklet 'Managing nuclear knowledge: IAEA activities and international coordination. Asian Network for Education in Nuclear Technology (ANENT)'. It contains the background material with regard to ANENT in full text, including policy level papers, reports, presentation material made by Member States, and meeting summaries during the period 2002-2005. Further information on the current ANENT activities and related IAEA activities is available at 'http://anent-iaea.org' and 'http://iaea.org/inisnkm'

Calculation of Direct photon production in nuclear collisions

CERN Document Server

Cepila, J

2012-01-01

Prompt photons produced in a hard reaction are not expected to be accompanied by any final state interaction, either energy loss or absorption and one should not expect any nuclear effects at high pT . However, data from the PHENIX experiment indicates large-pT suppression in d+Au and central Au+Au collisions that cannot be accompanied by coherent phenomena. We propose a mechanism based on the energy sharing problem at large pT near the kinematic limit that is induced by multiple initial state interactions and that improves the agreement of calculations with PHENIX data. We calculate inclusive direct photon production cross sections in p+p collisions at RHIC and LHC energies using the color dipole approach without any additional parameter. Our predictions are in good agreement with the available data. Within the same framework, we calculate direct photon production rates in d+A and A+A collisions at RHIC energy. We also provide predictions for the same process in p+A collisions at LHC energy. Since the kinema...

Federal supervisory authorities' power to issue directives in nuclear licensing procedures (Kalkar reactor)

International Nuclear Information System (INIS)

Anon.

1990-01-01

The Federal Constitutional Court (BVerfG) is concerned in its judgement with the legal instrument of Federal supervisory authorities' power to issue directives in nuclear licensing procedures (Kalkar reactor). Dealt with are questions concerning material and excercising competences, the Federal Government's right to issue directives and possible violation of Laender rights, as well as the legal position between Land and Federal Government, the necessity to issue clear directives, questions concerning the competence to issue directives and the Federal Government's duty to consider the overall interests (Federal Government and Laender interests), questions concerning constitutional state principles and the limits in the relations between Federal Government - Laender concerning legal competence. (RST) [de

Future Direction of the Instrumentation and Control System for Security of Nuclear Facilities

International Nuclear Information System (INIS)

Kim, Woo Jin; Kim, Jae Kwang

2014-01-01

Instrumentation and control systems are pervasively used as a vital component in modern industries. Nuclear facilities, such as nuclear power plants (NPPs), originally use I and C systems for plant status monitoring, processes control, and many other purposes. After some events that raised security concerns, application areas of I and C systems have been expanded to physical protection of nuclear material and facilities. As nuclear policies over the world are strengthening security issues, the future direction of roles and technical requirements of security related I and C systems is described: An introduction of I and C systems, especially digitalized I and C systems, to security of nuclear facilities requires many careful considerations, such as system integration, verification and validation (V/V), etc. Institute of Nuclear Nonproliferation and Control (KINAC) established 'International Nuclear Nonproliferation and Security Academy, INSA' in 2014. One of the main achievements of INSA is test-bed implementation for technical criteria development of nuclear facilities' physical protection systems (PPSs) as well as for education and training of those systems. The test bed was modified and improved more suitably from the previous version to modern PPSs including state-of-the-art I and C technologies. KINAC is confident in the new test bed to become a fundamental technical basis of security related I and C systems in near future

JAEA's activities relating the Fukushima Nuclear Plant accident

International Nuclear Information System (INIS)

Tagawa, Akihiro

2012-01-01

JAEA started the activities relating to the Fukushima nuclear plant accident immediately after the Great East Japan Earthquake. The Office of Fukushima Partnership Operations for Environmental Remediation was opened and the JAEA staff was stationed as the base of cooperation with other organizations. It is conducting environmental radiation monitoring, environmental radioactivity analyses, resident public consulting, and demonstration of decontamination technology. Experts of JAEA are providing technical advice and supports to the Nuclear Safety Commission of Japan and the Ministry of Education, Culture and Sports. Furthermore, the water radiolysis leading to hydrogen gas evolution by Cs 137 adsorbed zeolite and the technique for radioactive waste process and its disposal of fuel debris are being studied. JAEA's Nuclear Emergency Assistance and Training Center (NEAT) is acting as a center of these supporting activities of JAEA. (S. Ohno)

Status and future plan of nuclear data activities in Korea

Energy Technology Data Exchange (ETDEWEB)

Oh, Soo-Youl; Chang, Jonghwa [Korea Atomic Energy Research Inst., Taejon (Korea, Republic of)

1997-03-01

It was reviewed the nuclear data related activities in Korea, and was explained a 15-year term nation-wide R and D project that had been launched at 1996. The experiences up to now show, as a whole, that the nuclear data field in Korea is in the early stage. Through the long term project, however, it is expected that a firm foundation be established. Then it would be possible to contribute actively to the international nuclear data community as well as to meet domestic requests for nuclear data. Also it was pointed out the necessity of the international collaboration such as consultings and co-works. (author)

Annual and activity report 2005 - INB - Brazilian Nuclear Industries. Nuclear fuel: technology for the essential

International Nuclear Information System (INIS)

2005-01-01

This document reports the activities of Brazilian Nuclear Industry company during 2005 as follows: uranium isotope enrichment; production of nuclear fuel; mineral resources; finance and administration; planning and sales; quality, safety and environment, communication and social action; economic and financial management

Report on activities of Nuclear Regulatory Authority of the Slovak Republic and safety of nuclear installations in the Slovak Republic in 2008. Annual report

International Nuclear Information System (INIS)

Zemanova, D.; Pirozekova, M.

2009-04-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2008 is presented. These activities are reported under the headings: (1) Foreword; (2) Legislation; (3) Issuance of authorizations, assessment, supervisory activities and enforcement; (4) Nuclear safety of nuclear installations in the Slovak Republic; (5) Safety of other nuclear installations; (6) Management of radioactive waste; (7) Nuclear materials and physical protection of nuclear materials; (8) Activity of Building Office; (9) Emergency planning and preparedness; (10) International activities; (11) Public communication; (11) Nuclear Regulatory Authority of the Slovak Republic; (12) UJD SR organization chart; (13) Abbreviations

Nuclear data project evaluation activity report. October 1998 - October 2000

Energy Technology Data Exchange (ETDEWEB)

Akovali, Y; Blackmon, J; Radford, D; Smith, M [Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN (United States)

2001-02-01

This report summarizes the activities of the ORNL Nuclear Data Project since the IAEA Advisory Group meeting in December 1998. The group's future plans are also included. The ORNL Nuclear Data Project's responsibility includes the compilation/evaluation of astrophysics data, as well as the evaluation and compilation of nuclear structure data. The Nuclear Data Project, therefore, is composed of two groups. The Nuclear Data Project staff through September 2000 is listed below. Accomplishments for the period of October 1998 through September 2000 of the nuclear structure data group and the nuclear astrophysics group are submitted in this Nuclear Data Project report.

Nuclear data project evaluation activity report. October 1998 - October 2000

International Nuclear Information System (INIS)

Akovali, Y.; Blackmon, J.; Radford, D.; Smith, M.

2001-01-01

This report summarizes the activities of the ORNL Nuclear Data Project since the IAEA Advisory Group meeting in December 1998. The group's future plans are also included. The ORNL Nuclear Data Project's responsibility includes the compilation/evaluation of astrophysics data, as well as the evaluation and compilation of nuclear structure data. The Nuclear Data Project, therefore, is composed of two groups. The Nuclear Data Project staff through September 2000 is listed below. Accomplishments for the period of October 1998 through September 2000 of the nuclear structure data group and the nuclear astrophysics group are submitted in this Nuclear Data Project report

OECD/NEA Ongoing activities related to the nuclear fuel cycle

International Nuclear Information System (INIS)

Cornet, S.M.; McCarthy, K.; Chauvin, N.

2013-01-01

As part of its role in encouraging international collaboration, the OECD Nuclear Energy Agency is coordinating a series of projects related to the Nuclear Fuel Cycle. The Nuclear Science Committee (NSC) Working Party on Scientific Issues of the Nuclear Fuel Cycle (WPFC) comprises five different expert groups covering all aspects of the fuel cycle from front to back-end. Activities related to fuels, materials, physics, separation chemistry, and fuel cycles scenarios are being undertaken. By publishing state-of-the-art reports and organizing workshops, the groups are able to disseminate recent research advancements to the international community. Current activities mainly focus on advanced nuclear systems, and experts are working on analyzing results and establishing challenges associated to the adoption of new materials and fuels. By comparing different codes, the Expert Group on Advanced Fuel Cycle Scenarios is aiming at gaining further understanding of the scientific issues and specific national needs associated with the implementation of advanced fuel cycles. At the back end of the fuel cycle, separation technologies (aqueous and pyrochemical processing) are being assessed. Current and future activities comprise studies on minor actinides separation and post Fukushima studies. Regular workshops are also organized to discuss recent developments on Partitioning and Transmutation. In addition, the Nuclear Development Committee (NDC) focuses on the analysis of the economics of nuclear power across the fuel cycle in the context of changes of electricity markets, social acceptance and technological advances and assesses the availability of the nuclear fuel and infrastructure required for the deployment of existing and future nuclear power. The Expert Group on the Economics of the Back End of the Nuclear Fuel Cycle (EBENFC), in particular, is looking at assessing economic and financial issues related to the long term management of spent nuclear fuel. (authors)

Results of a Direct Search Using Synchrotron Radiation for the Low-Energy (229)Th Nuclear Isomeric Transition.

Science.gov (United States)

Jeet, Justin; Schneider, Christian; Sullivan, Scott T; Rellergert, Wade G; Mirzadeh, Saed; Cassanho, A; Jenssen, H P; Tkalya, Eugene V; Hudson, Eric R

2015-06-26

We report the results of a direct search for the (229)Th (I(π)=3/2(+)←5/2(+)) nuclear isomeric transition, performed by exposing (229)Th-doped LiSrAlF(6) crystals to tunable vacuum-ultraviolet synchrotron radiation and observing any resulting fluorescence. We also use existing nuclear physics data to establish a range of possible transition strengths for the isomeric transition. We find no evidence for the thorium nuclear transition between 7.3 eV and 8.8 eV with transition lifetime (1-2) s≲τ≲(2000-5600)  s. This measurement excludes roughly half of the favored transition search area and can be used to direct future searches.

A project in support of international nuclear cooperation activities

Energy Technology Data Exchange (ETDEWEB)

Lee, Jeongkong; Kim, Myungro; Choi, Pyunghoon; Kim, Kyungpyo; Jung, Sunghyon; Park, Jiyeon; Eom, Jaesik; Kim, Wangkeun; Chung, Byungsun

2011-12-15

This study contains the work undertaken to promote multilateral cooperation within the framework of international nuclear related organizations and regional cooperative agreements and the relevant forums, to enhance bilateral cooperation with foreign nuclear related research institutes as well as to promote cooperation through the exchange of foreign scientists. As for multilateral cooperation, activities for promoting cooperation within the IAEA and regional cooperative frameworks are introduced. Regarding bilateral cooperation, activities for concluding arrangements and MOUs with foreign research institutes and for participation in joint nuclear coordinating committee meetings between Korea and other countries are presented. For promoting personnel exchanges, activities for inviting and utilizing foreign scientists and mutual discussions with foreign experts, who have visited KAERI, are also described. Continuous efforts to contributing towards the international community through utilizing Korea's experience gained in the process of technical self-reliance and development of human resources are needed. Also efforts to establish the foundation of international cooperation and to make inroad into overseas nuclear markets for export of our nuclear technologies should be made. Meanwhile in the bilateral cooperation, we need to beef up cooperation with U. S. A. and Canada through the joint committee for the joint export to third countries. It is expected that this study would be utilized as a basic material for the international cooperation of nuclear energy, especially for the KAERI's international cooperation in an effective way.

Nuclear Power and Safety Division activity

International Nuclear Information System (INIS)

Pazdera, F.

1991-01-01

History of the Division is briefly described. Present research is centered on reliability analyses and thermal hydraulic analyses of transients and accidents. Some results of the safety analyses have been applied at nuclear power plants. A characterization is presented of computer codes for analyzing the behavior of fuel in normal and accident conditions. Research activities in the field of water chemistry and corrosion are oriented to the corrosion process at high temperatures and high pressures, and the related mass and radioactivity transfer; the effect of some chemical processes on primary coolant circuit materials; optimization of PWR filtration systems; and the development of the requisite monitoring instrumentation. A computerized operator support system has been developed, and at present it is tested at the Dukovany nuclear power plant. A program of nuclear fuel cycle strategy and economy has been worked out for nuclear fuel performance evaluation. Various options for better fuel exploitation, alternatives for advanced fuelling, and fuel cycle costs are assessed, and out-of-reactor fuel cycle options are compared. (M.D.). 7 refs., 32 refs

The Report on Activities of the Nuclear Regulatory Authority of the Slovak Republic and on Safety of Nuclear Installations in the Slovak Republic in 2011

International Nuclear Information System (INIS)

2012-05-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2011 is presented. These activities are reported under the headings: Foreword; (1) Legislative activities; (2) Regulatory Activities; (3) Nuclear safety of nuclear power plants; (4) Nuclear Materials in SR; (5) Nuclear materials and physical protection of nuclear materials; (6) Scope of powers of the office building; (7) Emergency planning and preparedness; (8) International activities; (9) Public communication; (10) Nuclear Regulatory Authority of the Slovak Republic; (11) UJD SR organization chart; The International Nuclear Event Scale (INES); (12) Abbreviations.

Update of Nuclear Waste Policy Act transportation activities

International Nuclear Information System (INIS)

Callaghan, E.F.

1987-01-01

As directed by the Nuclear Waste Policy Act of 1982 (NWPA), the Department of Energy (DOE) is developing a nationwide system for transporting spent nuclear fuel and high-level radioactive waste from commercial power plants to deep geologic repositories for disposal. Plans for the transportation system will consider the following factors: the President's 1985 decision to co-locate some defense high-level waste with commercial waste in a repository, the NWPA requirement that the private sector be used to the fullest extent possible in developing and operating the system, and the possible approval by Congress of the DOE's proposal for a Monitored Retrievable Storage (MRS) facility, submitted in March 1987. (The MRS, if approved, would provide for the consolidation, packaging, and perhaps the temporary storage of spent fuel from reactors.) The ''Transportation Business Plan'', published in January 1986, reflects these considerations. The transportation system, when operational, will consist of two elements: (1) the cask system, which includes the transportation casks, the vehicular conveyances, tie-downs, and associated equipment for handling the casks; and (2) the transportation support system which is comprised of facilities, equipment, and services to support waste transportation. Development of the transportation system incorporates the following work elements: operational planning, support systems development, cash system development, systems analysis, and institutional activities. This paper focusses on the technical aspects of the system

Activities of Brazilian Nuclear Energy Commission in the field of nuclear power plant licesing

International Nuclear Information System (INIS)

Alves, R.N.

1986-01-01

The objectives, the procedures and the ways of implementation of measures aiming at safety use of nuclear energy are presented. The juridical aspects in the licensing area and the regulatory activities used by CNEN. The description of nuclear power plants and the methodology used in studies of environmental protection and radiation protection are presented [pt

Bordeaux Gradignan Nuclear Research Centre - CENBG - 2009-2012 Activity report

International Nuclear Information System (INIS)

2013-01-01

The Bordeaux Gradignan Nuclear Research Centre (CENBG) is a joint research unit of the CNRS/IN2P3 and the University Bordeaux 1 'Science and Technology'. The laboratory is composed of permanent researchers, permanent engineers and technicians and PhD students, post-docs and visitors. The scientific program covers a broad range of topics in nuclear physics, particle physics, Astro-particle physics as well as applications of subatomic physics to different multidisciplinary fields. The main research subjects are: exotic nuclei far from the valley of beta stability and rare radioactive decays; neutrino physics (type and mass of the neutrino) and double beta decay; high energy gamma ray astronomy; innovative approaches to nuclear power generation and transmutation of nuclear waste; laser induced nuclear excitations; the effects of various environmental exposures studied via macro, micro or nano-ion beams using the new platform AIFIRA; and finally theoretical studies of nuclear and hadronic matter. All these activities take place within strong national and international collaborations involving the academic world and enabling the selection and training of high-quality students and post-doctoral researchers. To promote dissemination in the regional and national network, within the technologies developed at the laboratory in the domain of characterization with beams of ions or neutrons, there exists a transfer unit ARCANE which works through contracts. This document is the 2009-2012 Activity report of CNBG, content: 1 - Research activities (Exotic nuclei; theoretical physics; laser nuclear excitations; Astro-particles; neutrino and low radioactivities; downstream of the fuel cycle and nuclear energy; radioactivity and environment; physics-biology interface; publications (journals, conferences and workshops); 2 - Skills and technical realisations (Electronics dept.; Instrumentation/detectors dept.; administration; Information and technology Dept.; Mechanics Dept.; Platform

Bordeaux Gradignan Nuclear Research Centre - CENBG - 2013-2014 Activity report

International Nuclear Information System (INIS)

2015-01-01

The Bordeaux Gradignan Nuclear Research Centre (CENBG) is a joint research unit of the CNRS/IN2P3 and the University Bordeaux 1 'Science and Technology'. The laboratory is composed of permanent researchers, permanent engineers and technicians and PhD students, post-docs and visitors. The scientific program covers a broad range of topics in nuclear physics, particle physics, Astro-particle physics as well as applications of subatomic physics to different multidisciplinary fields. The main research subjects are: exotic nuclei far from the valley of beta stability and rare radioactive decays; neutrino physics (type and mass of the neutrino) and double beta decay; high energy gamma ray astronomy; innovative approaches to nuclear power generation and transmutation of nuclear waste; laser induced nuclear excitations; the effects of various environmental exposures studied via macro, micro or nano-ion beams using the new platform AIFIRA; and finally theoretical studies of nuclear and hadronic matter. All these activities take place within strong national and international collaborations involving the academic world and enabling the selection and training of high-quality students and post-doctoral researchers. To promote dissemination in the regional and national network, within the technologies developed at the laboratory in the domain of characterization with beams of ions or neutrons, there exists a transfer unit ARCANE which works through contracts. This document is the 2013-2014 Activity report of CNBG, content: 1 - Research activities (Exotic nuclei; theoretical physics; laser nuclear excitations; Astro-particles; neutrino and low radioactivities; downstream of the fuel cycle and nuclear energy; radioactivity and environment; physics-biology interface; chemical imaging and speciation; publications (journals, conferences and workshops); 2 - Skills and technical realisations (Electronics dept.; Instrumentation/detectors dept.; administration; Information and technology

Current status and issues of nuclear human resource development/General activities of Japan nuclear human resource development network

International Nuclear Information System (INIS)

Murakami, Hiroyuki; Hino, Sadami; Tsuru, Hisanori

2013-01-01

The Japan Nuclear Human Resource Development Network (JN-HRD Net) was established in November 2010 with the aim of developing a framework for mutual cooperation and information sharing among nuclear-related organizations. Although the tasks and goals of developing human resources in the nuclear field have been shifted since the accident at the Tokyo Electric Power Company (TEPCO) Fukushima Daiichi Nuclear Power Plant, the necessity of fostering capable personnel in this field stays unchanged and the importance of our network activities has further emphasized. The meeting of JN-HRD Net was held on the 5th of February 2013, where its activities by each field were reported and views and opinions were actively exchanged between more than 90 participants. This paper briefly describes current status and issues of JN-HRD Net and its general activities conducted by the JN-HRD Net secretariat. (J.P.N.)

Institute of Nuclear Physics of Orsay - IPNO. Activity report 2008/2009

International Nuclear Information System (INIS)

2010-01-01

The Institute of Nuclear Physics of Orsay (IPN Orsay) is undertaking nuclear physics research that is centered on the nature of matter and its ultimate constituents. By the nature of its scientific activities, the IPN is at the heart of a wide range of international collaborations. IPN Orsay is a unit of both the CNRS (National Centre of Scientific Research) and of the Paris-Sud University. It plays a vital role in experiments being carried out by wide-ranging collaborations at major experimental facilities most notably in Europe, the United States and Japan. Its own facilities allows the IPN to carry out fundamental theoretical and experimental research studies in nuclear physics, astro-particle physics, radiochemistry but also in pluri-disciplinary activities. This document presents the activity of the Institute during the 2008-2009 years: 1 - Scientific activities: Nuclear structure; Hadronic physics and Astro-particles; Theoretical physics; Particle Matter Interactions; Nuclear dynamics and thermodynamics; Energy and Environment; 2 - Technical activities: Technical departments; Accelerators Division; Instrumentation division; 3 - Knowledge dissemination; 4 - General services; 5 - Appendixes: Publications, Proceedings, Conferences, workshops, collaboration meetings, Seminars, PhDs, accreditations to supervise research, Staff, Visitors, Work experiences

Nuclear energy national plan. The directions for nuclear energy policy in Japan

International Nuclear Information System (INIS)

2006-11-01

Nuclear energy is a key attaining an integrated solution for energy security and global warming issues. Under the Framework for Nuclear Energy Policy Japan aims to (1) maintain the 30 to 40% or more share of nuclear energy on electricity generation up to 2030 and afterwards, (2) promote the nuclear fuel cycle and (3) commercialize the fast-breeder reactors. As for policies to realize the basic targets, the 'Nuclear Energy National Plan' was compiled in August 2006 as follows: (1) Investment to construct new nuclear power plants and replace existing reactors in an era of electric power liberalization, 2) Appropriate use of existing nuclear power plants with assuring safety as a key prerequisite, (3) Steady advancement of the nuclear fuel cycle and strategic reinforcement of nuclear fuel cycle industries, (4) Strategy to secure uranium supplied, (5) Early commercialization of the fast breeder reactor cycle, (6) Achieving and developing advanced, technologies, industries and personnel, (7) Assisting the Japanese nuclear industry in promoting the international development, (8) Involved in and/or creating international frameworks to uphold both nonproliferation and expansion of nuclear power generation, (9) Fostering trust between the sates and communities where plants are located by making public hearings and public relations highly detailed and (10) Steady promotion of measures for disposal of radioactive wastes. Implementation policies were presented in details in this book with relevant data and documents. (T. Tanaka)

Activities report 1991-1992: Nuclear Research Center of Strasbourg

International Nuclear Information System (INIS)

1993-01-01

This activities report of the Nuclear Research Centre of Strasbourg for the years 1991 and 1992, presents nine research axis: theoretical physics, mechanisms of reactions and nuclear structure, extreme forms of nuclei, exotic nuclei, hot and dense nuclear matter, ultra-relativistic heavy ions, physics of LEP (European Large Electron-Positron storage ring) at 'DELPHI', chemistry and physics of radiations, physics and applications of semi-conductors

Activities of the ANS special committee on nuclear nonproliferation

International Nuclear Information System (INIS)

Buckner, M.R.; Sanders, T.L.

2001-01-01

The American Nuclear Society (ANS) Special Committee on Nuclear Nonproliferation (SCNN) believes that to reverse current trends, U.S. policy must revisit the fundamental premise of Atoms for Peace: A collaborative nuclear enterprise enhances rather than diminishes national security. To accomplish this, the U.S. Government must develop an integrated policy on energy, nuclear technology, and national security. The policy must recognize that these are interrelated and that an integrated policy will require substantial investments in nuclear research and development and in nuclear education. This paper describes the current activities of the SCNN to heighten awareness of nonproliferation issues for decision makers and ANS members, and alert them to the need for action to resolve these concerns. (author)

Activities of the ANS special committee on nuclear nonproliferation

Energy Technology Data Exchange (ETDEWEB)

Buckner, M.R. [Westinghouse Savannah River Co., Aiken, SC (United States); Sanders, T.L. [Sandia National Labs., Albuquerque, NM (United States)

2001-07-01

The American Nuclear Society (ANS) Special Committee on Nuclear Nonproliferation (SCNN) believes that to reverse current trends, U.S. policy must revisit the fundamental premise of Atoms for Peace: A collaborative nuclear enterprise enhances rather than diminishes national security. To accomplish this, the U.S. Government must develop an integrated policy on energy, nuclear technology, and national security. The policy must recognize that these are interrelated and that an integrated policy will require substantial investments in nuclear research and development and in nuclear education. This paper describes the current activities of the SCNN to heighten awareness of nonproliferation issues for decision makers and ANS members, and alert them to the need for action to resolve these concerns. (author)

Background and future activities of PBNCC's nuclear training working group

International Nuclear Information System (INIS)

Rieh, C.H.; Chung, K.; Hamlin, K.W.

1988-01-01

This paper presents a review of the background and activities of the nuclear training working group of the Pacific Basin Nuclear Cooperation Committee. The working group has examined various mechanisms for regional cooperation including the development of a regional catalog of training programs and the conceptualization of sharing training facilities among nuclear operators in the region. The working group has focused its attention on the exchange of information on the on-going training programs, operator training facilities, available resources for training assistance and proposed cooperative schemes. These activities are expected to continue and will provide invaluable information for nuclear power programs in the Pacific Basin region. The group also reviewed problems and issues associated with developing regional cooperation

Background and future activities of PBNCC's nuclear training working group

International Nuclear Information System (INIS)

Chong Hun Rieh; Kunmo Chung; Hamlin, K.W.

1987-01-01

This paper presents a review of the background and activities of the nuclear training working group of the Pacific Basin Nuclear Cooperation Committee. The working group has examined various mechanisms for regional cooperation including the development of aregional catalog of training programs and the conceptualization of sharing training facilities among nuclear operators in the region. The working group has focused its attention on the exchange of information on the on-going training programs, operator training facilities, available resources for training assistance and proposed cooperative schemes. These activities are expected to continue and will provide invaluable information for nuclear power programs in the Pacific Basin region. The group also reviewed problems and issues associated with developing regional cooperation. (author)

Activity report 1992

International Nuclear Information System (INIS)

1993-01-01

This activity report of the DSIN ( Direction of Nuclear Installations Safety) is divided into 4 parts bearing on: (1) Organisation, Safety principles, Regulations (2) Nuclear basis installations following (3) Surveillance by the regional directions of the Ministry of Industry, Research and Environment (4) Other missions of the DSIN

Direct observation of nanoparticle-cancer cell nucleus interactions.

Science.gov (United States)

Dam, Duncan Hieu M; Lee, Jung Heon; Sisco, Patrick N; Co, Dick T; Zhang, Ming; Wasielewski, Michael R; Odom, Teri W

2012-04-24

We report the direct visualization of interactions between drug-loaded nanoparticles and the cancer cell nucleus. Nanoconstructs composed of nucleolin-specific aptamers and gold nanostars were actively transported to the nucleus and induced major changes to the nuclear phenotype via nuclear envelope invaginations near the site of the construct. The number of local deformations could be increased by ultrafast, light-triggered release of the aptamers from the surface of the gold nanostars. Cancer cells with more nuclear envelope folding showed increased caspase 3 and 7 activity (apoptosis) as well as decreased cell viability. This newly revealed correlation between drug-induced changes in nuclear phenotype and increased therapeutic efficacy could provide new insight for nuclear-targeted cancer therapy.

Nuclear Data Activities in Support of the DOE Nuclear Criticality Safety Program

International Nuclear Information System (INIS)

Westfall, R.M.; McKnight, R.D.

2005-01-01

The DOE Nuclear Criticality Safety Program (NCSP) provides the technical infrastructure maintenance for those technologies applied in the evaluation and performance of safe fissionable-material operations in the DOE complex. These technologies include an Analytical Methods element for neutron transport as well as the development of sensitivity/uncertainty methods, the performance of Critical Experiments, evaluation and qualification of experiments as Benchmarks, and a comprehensive Nuclear Data program coordinated by the NCSP Nuclear Data Advisory Group (NDAG).The NDAG gathers and evaluates differential and integral nuclear data, identifies deficiencies, and recommends priorities on meeting DOE criticality safety needs to the NCSP Criticality Safety Support Group (CSSG). Then the NDAG identifies the required resources and unique capabilities for meeting these needs, not only for performing measurements but also for data evaluation with nuclear model codes as well as for data processing for criticality safety applications. The NDAG coordinates effort with the leadership of the National Nuclear Data Center, the Cross Section Evaluation Working Group (CSEWG), and the Working Party on International Evaluation Cooperation (WPEC) of the OECD/NEA Nuclear Science Committee. The overall objective is to expedite the issuance of new data and methods to the DOE criticality safety user. This paper describes these activities in detail, with examples based upon special studies being performed in support of criticality safety for a variety of DOE operations

Direct disposal of spent nuclear fuel. The current status of technology January 1987

International Nuclear Information System (INIS)

Wheelton, I.S.; Kelly, B.R.; Wood, E.

1987-02-01

The Study assesses the degree and status of research and development worldwide on Direct Disposal of Spent Nuclear Fuel. It is limited to technological, radiological and waste management aspects appertaining to Light Water and AGR Reactor Systems and reviews the 'State of the Art' in terms of applicability to the United Kingdom. The report concludes that much technology exists both at National and International level which the UK can apply to the subject of Direct Disposal. (author)

Licensing of nuclear reactor operators

International Nuclear Information System (INIS)

1979-09-01

Recommendations are presented for the licensing of nuclear reactor operators in units licensed according to the legislation in effect. They apply to all physical persons designated by the Operating Organization of the nuclear reactor or reactors to execute any of the following functional activities: a) to manipulate the controls of a definite reactor b) to direct the authorized activities of the reactor operators licesed according to the present recommendations. (F.E.) [pt

Nuclear starburst activity induced by elongated bulges in spiral galaxies

Science.gov (United States)

Kim, Eunbin; Kim, Sungsoo S.; Choi, Yun-Young; Lee, Gwang-Ho; de Grijs, Richard; Lee, Myung Gyoon; Hwang, Ho Seong

2018-06-01

We study the effects of bulge elongation on the star formation activity in the centres of spiral galaxies using the data from the Sloan Digital Sky Survey Data Release 7. We construct a volume-limited sample of face-on spiral galaxies with Mr nuclear starbursts using the fibre specific star formation rates derived from the SDSS spectra. We find a statistically significant correlation between bulge elongation and nuclear starbursts in the sense that the fraction of nuclear starbursts increases with bulge elongation. This correlation is more prominent for fainter and redder galaxies, which exhibit higher ratios of elongated bulges. We find no significant environmental dependence of the correlation between bulge elongation and nuclear starbursts. These results suggest that non-axisymmetric bulges can efficiently feed the gas into the centre of galaxies to trigger nuclear starburst activity.

Fusion Nuclear Data activities at FNL, IPR

OpenAIRE

P. M. Prajapati; B. Pandey; S. Jakhar; C.V. S. Rao; T. K. Basu; B. K. Nayak; S. V. Suryanarayana; A. Saxena

2015-01-01

This paper briefly describes the current fusion nuclear data activities at Fusion Neutronics Laboratory, Institute for Plasma Research. It consist of infrastructure development for the cross-section measurements of structural materials with an accelerator based 14 MeV neutron generator and theoretical study of the cross-section using advanced nuclear reaction modular codes EMPIRE and TALYS. It will also cover the proposed surrogate experiment to measure 55Fe (n, p) 55Mn using BARC-TIFR Pel...

Future directions in nuclear data publication

International Nuclear Information System (INIS)

Firestone, R.B.; Chu, S.Y.F.; Ekstroem, L.P.; Nordberg, H.

1997-01-01

Rapid advances in computer based technologies provide enormous opportunities and great challenges to the way nuclear data is disseminated. Simple text databases and linear, command driven software are giving way to more complex, indexed databases and object-oriented, menu-driven applications. The Internet will clearly dominate dissemination of nuclear data in for foreseeable future, and CD-ROM technology (or similar high-density media) will replace hard-copy publication. The Isotopes Project has released Version 1.0 of VuENSDF, a versatile, 32-bit, C ++ , Internet enabled application for disseminating nuclear data. VuENSDF can automatically retrieve data over Internet; display decay scheme drawings, level tables, and references; and perform limited database searching of nuclear bands, transition coincidences, and reference authors. Version 2.0 of VuENSDF is being developed and will offer more complete database searches, plotting, and data entry utilities. The Isotopes Project has established a series of home pages on the WWW to provide data for various topics of nuclear physics. The group has also published a CD-ROM version of the Table of Isotopes using Adobe Acrobat software. Updated, Internet versions of the Table of Isotopes are planned. (author)

Report on activities of Nuclear Regulatory Authority of the Slovak Republic and safety of nuclear installations in the Slovak Republic in 2009. Annual report

International Nuclear Information System (INIS)

2010-04-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2009 is presented. These activities are reported under the headings: (1) Foreword; (2) Legislation; (3) Issuance of authorizations, assessment, supervisory activities and enforcement; (4) Nuclear safety of nuclear installations in the Slovak Republic; (5) Safety of other nuclear installations; (6) Management of radioactive waste; (7) Nuclear materials and physical protection of nuclear materials; (8) Emergency planning and preparedness; (9) International activities; (10) Public communication; (11) Nuclear Regulatory Authority of the Slovak Republic; (12) UJD SR organization chart; (13) Abbreviations.

The role of nuclear suppliers group in preventing the proliferation of nuclear weapons

International Nuclear Information System (INIS)

Medakovic, S.; Cizmek, A.; Horvatic, M.; Ilijas, B.

2009-01-01

The non-proliferation regime today is a pretty heterogeneous system of measures and different ways of control of nuclear material production, transport and use, as well as nuclear activities and technology in general. In its basis are the Statute of International Atomic Energy Agency (IAEA) and Non-proliferation Treaty. However, the development of a nuclear technology and technological progress in the world in general, poses the need for more efficient and much more concrete systems of control of nuclear material and activities. One of organizations which cover these issues is Nuclear Suppliers Group (NSG), founded in 1991 with goal to assemble all states suppliers, regardless are they signatories of Non-proliferation Treaty or not. The important thing is that NSG do not rely only to the list of limitations for traffic of the equipment which is directly related to nuclear activities, but also to so call dual use equipment, i.e. equipment which could be, besides its primary purpose, converted to some nuclear activities. Concerning continuous technological development, and also the actual political situation in the world, these lists are continuously amended. In this presentation the principles and methods of work of NSG are analyzed, together with the role of the Republic of Croatia as its member.(author)

The Role of Nuclear Suppliers Group in Preventing the Proliferation of Nuclear Weapons

International Nuclear Information System (INIS)

Ilijas, B.; Cizmek, A.; Prah, M.; Medakovic, S.

2008-01-01

The non-proliferation regime today is a pretty heterogeneous system of measures and different ways of control of nuclear material production, transport and use, as well as nuclear activities and technology in general. In its basis are the Statute of International Atomic Energy Agency (IAEA) and Non-proliferation Treaty. However, the development of a nuclear technology and technological progress in the world in general, poses the need for more efficient and much more concrete systems of control of nuclear material and activities. One of organizations which covers these issues is Nuclear Suppliers Group (NSG), founded in 1991 with goal to assemble all states suppliers, regardless are they signatories of Non-proliferation Treaty or not. The important thing is that NSG do not rely only to the list of limitations for traffic of the equipment which is directly related to nuclear activities, but also to so call dual use equipment, i.e. equipment which could be, besides its primary purpose, converted to some nuclear activities. Concerning continuous technological development, and also the actual political situation in the world, these lists are continuously amended. In this presentation the principles and methods of work of NSG are analyzed, together with the role of the Republic of Croatia as its member as from 2005.(author)

arXiv Probing Nuclear PDF and Gluon Saturation At The LHC with Forward Direct Photons

CERN Document Server

Cosentino, Mauro Rogerio

2017-01-30

In relativistic nuclear collisions some of the important aspects to be addressed are the effects of the nuclear PDF and the gluon saturation. In the LHC the best way to address these questions is by means of pA collisions and in particular through the measurement of direct photon production in the forward direction. In order to achieve this measurement a new forward calorimeter (FoCal) is proposed as an upgrade to the ALICE experiment. The proposed detector will cover the range 3.5 4 GeV. We will discuss performance studies and demonstrate that extremely high-granularity calorimetry is required for such measurement. We will also present a few results from R\\&D for this project.

Report on activities of Nuclear Regulatory Authority of the Slovak Republic and safety of nuclear installations in the Slovak Republic in 2007. Annual report

International Nuclear Information System (INIS)

2007-04-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2007 is presented. These activities are reported under the headings: (1) Foreword; (2) Legislation; (3) Issuance of authorizations, assessment, supervisory activities and enforcement; (4) Nuclear safety of nuclear installations in the Slovak Republic; (5) Safety of other nuclear installations; (6) Management of radioactive waste; (7) Nuclear materials; (8) Emergency planning and preparedness; (9) International activities; (10) Public communication; (11) Nuclear Regulatory Authority of the Slovak Republic; (12) Abbreviations

Nuclear Legislation in OECD and NEA Countries. Regulatory and Institutional Framework for Nuclear Activities - United States

International Nuclear Information System (INIS)

2015-01-01

This country profile provide comprehensive information on the regulatory and Institutional Framework governing nuclear activities as well as a detailed review of a full range of nuclear law topics, including: mining regime; radioactive substances; nuclear installations; trade in nuclear materials and equipment; radiation protection; radioactive waste management; non-proliferation and physical protection; transport; and nuclear third party liability. The profile is complemented by reproductions of the primary legislation regulating nuclear activities in the country. Content: I. General Regulatory Regime: 1. Introduction; 2. Mining regime; 3. Radioactive substances, nuclear fuel and equipment (Special nuclear material; Source material; By-product material; Agreement state programmes); 4. Nuclear installations (Initial licensing; Operation and inspection, including nuclear safety; Operating licence renewal; Decommissioning; Emergency response); 5. Radiological protection (Protection of workers; Protection of the public); 6. Radioactive waste management (High-level waste; Low-level waste; Disposal at sea; Uranium mill tailings; Formerly Utilized Sites Remedial Action Program - FUSRAP); 7. Non-proliferation and exports (Exports of source material, special nuclear material, production or utilisation facilities and sensitive nuclear technology; Exports of components; Exports of by-product material; Exports and imports of radiation sources; Conduct resulting in the termination of exports or economic assistance; Subsequent arrangements; Technology exports; Information and restricted data); 8. Nuclear security; 9. Transport; 10. Nuclear third party liability; II. Institutional Framework: 1. Regulatory and supervisory authorities (Nuclear Regulatory Commission - NRC; Department of Energy - DOE; Department of Labor - DOL; Department of Transportation - DOT; Environmental Protection Agency - EPA); 2. Public and semi-public agencies: A. Cabinet-level departments (Department of

Third Party Liability governing Dangerous and Nuclear Activities

International Nuclear Information System (INIS)

Di Martino, Vittorio.

1979-01-01

The introductory chapters of this book analyse the concept of fault as a basis for third party liability and the evolution of jurisprudence and doctrine towards the concept of absolute liability. The following part covers the Italian system of liability for hazardous activities. The nuclear third party liability system is then analysed according to existing international conventions and nuclear legislation in several countries. The Appendix contains various legislative and regulatory texts on nuclear third party liability in Italy and in other countries which provide for special legislation in this field. (NEA) [fr

Nuclear power reactor safety research activities in CIAE

International Nuclear Information System (INIS)

Pu Shendi; Huang Yucai; Xu Hanming; Zhang Zhongyue

1994-01-01

The power reactor safety research activities in CIAE are briefly reviewed. The research work performed in 1980's and 1990's is mainly emphasised, which is closely related to the design, construction and licensing review of Qinshan Nuclear Power Plant and the safety review of Guangdong Nuclear Power Station. Major achievements in the area of thermohydraulics, nuclear fuel, probabilistic safety assessment and severe accident researches are summarized. The foreseeable research plan for the near future, relating to the design and construction of 600 MWe PWR NPP at Qinshan Site (phase II development) is outlined

Activities of the PNC Nuclear Safety Working Group

International Nuclear Information System (INIS)

Kato, W.Y.

1991-01-01

The Nuclear Safety Working Group of the Pacific Nuclear Council promotes nuclear safety cooperation among its members. Status of safety research, emergency planning, development of lists of technical experts, severe accident prevention and mitigation have been the topics of discussion in the NSWG. This paper reviews and compares the severe accident prevention and mitigation program activities in some of the areas of the Pacific Basin region based on papers presented at a special session organized by the NSWG at an ANS Topical Meeting as well as papers from other sources

The Report on Activities of the Nuclear Regulatory Authority of the Slovak Republic and on Safety of Nuclear Installations in the Slovak Republic in 2010

International Nuclear Information System (INIS)

2010-05-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2010 is presented. These activities are reported under the headings: Address of the Chairperson; (1) Legislative activities; (2) Issuance of authorizations, assessment, supervisory activities and enforcement; (3) Nuclear safety of nuclear power plants; (4) Nuclear materials and physical protection of nuclear materials; (5) Powers of the office building; (6) Emergency planning and preparedness; (7) International activities; (8) Public communication; (9) Nuclear Regulatory Authority of the Slovak Republic; (10) Appendix: UJD SR organization chart; The International Nuclear Event Scale (INES); Abbreviations.

Nuclear supervision - Administration by the federal states on behalf of the Federal Government or direct federal administration? Evaluation from a practical point of view

International Nuclear Information System (INIS)

Cloosters, W.

2005-01-01

The organization of supervisory authorities under the Atomic Energy Act is not a new issue. In fact, it was discussed vehemently in the Federal Republic of Germany as far back as in the early fifties. Federal legislation in late 1959 decided to have the Atomic Energy Act executed in part under direct federal responsibility and, as far as the important supervision of the nuclear power plants operated in the Federal Republic of Germany was concerned, by the federal states on behalf of the federal government. Federal Minister for the Environment Trittin reopened the debate about the organization of nuclear administration by announcing his intention to transfer the supervision of nuclear power plants to direct federal administration. This announcement not only raises the question of legal permissibility of transferring nuclear power plant oversight to federal administration, but also requires a critical review, as presented in this article, of practical regulatory supervision to ensure safe operation of nuclear facilities. In this connection, both the actual content of supervisory activities and the way in which they are carried out must be examined in an effort to find an answer based on solid premises to the question raised above. For reasons explained in the contribution, oversight of nuclear power plants cannot be carried out as a centralized function. Instead, the legislative decision of 1959 in favor of the federal states exercising supervision on behalf of the federal government continues to be correct at the present stage also in the light of the steps initiated to opt out of the peaceful uses of nuclear power. (orig.)

Activities of nuclear training centre in Ljubljana for nuclear community in Slovenia and internationally

International Nuclear Information System (INIS)

Stritar, Andrej

1998-01-01

It is the vision of the Nuclear Training Centre to be a respected source of knowledge about nuclear technologies in the country and internationally. Our main mission is training of NPP Krsko personnel. For that purpose the training centre was established ten years ago. In addition we are spreading our activities also to other users. We are organizing international training courses, mainly under the sponsorship of the International Atomic Energy Agency. We are also authorized to train professionals, dealing with ionizing radiation in medicine, industry and science. Growing importance is given to our public information activity in our information centre. (author)

International economic association on production of nuclear instrumentation - ''INTERINSTRUMENT''

International Nuclear Information System (INIS)

Twardon, Z.

1979-01-01

History of establishment and development of the International economic association ''Interinstrument'' is stated. Structure of the Association is given and directions of its activity, as well as structure of its budget. List is given of organizations, performing works according to the agreements with the Association. Main directions are stated of activity of the Association in the field of specialization of production of items of nuclear equipment; co-ordination of activity in the sphere of foreign trade; information about new instruments. Activity is stated of the branch offices of the Association, engaged in maintenance of instruments and nuclear equipment [ru

Security of material: Preventing criminal activities involving nuclear and other radioactive materials

International Nuclear Information System (INIS)

Nilsson, A.

2001-01-01

The report emphasizes the need for national regulatory authorities to include in the regulatory systems, measures to control and protect nuclear materials from being used in illegal activities, as well as aspects of relevance for detecting and responding to illegal activities involving nuclear and other radioactive materials. The report will give an overview of the international treaties and agreements that underpin the establishment of a regulatory structure necessary for States to meet their non-proliferation policy and undertakings. Ongoing work to strengthen the protection of nuclear material and to detect and respond to illegal activities involving nuclear and other radioactive material will be included. The focus of the paper is on the need for standards and national regulation in the nuclear security area. (author)

Rho-kinase signaling controls nucleocytoplasmic shuttling of class IIa Histone Deacetylase (HDAC7) and transcriptional activation of orphan nuclear receptor NR4A1

Energy Technology Data Exchange (ETDEWEB)

Compagnucci, Claudia; Barresi, Sabina [Unit of Molecular Medicine for Neuromuscular and Neurodegenerative Disorders, Department of Neurosciences, Bambino Gesù Children’s Hospital, IRCCS, Rome (Italy); Petrini, Stefania [Research Laboratories, Confocal Microscopy Core Facility, Bambino Gesù Children’s Hospital, IRCCS, Rome (Italy); Bertini, Enrico [Unit of Molecular Medicine for Neuromuscular and Neurodegenerative Disorders, Department of Neurosciences, Bambino Gesù Children’s Hospital, IRCCS, Rome (Italy); Zanni, Ginevra, E-mail: ginevra.zanni@opbg.net [Unit of Molecular Medicine for Neuromuscular and Neurodegenerative Disorders, Department of Neurosciences, Bambino Gesù Children’s Hospital, IRCCS, Rome (Italy)

2015-04-03

Rho-kinase (ROCK) has been well documented to play a key role in RhoA-induced actin remodeling. ROCK activation results in myosin light chain (MLC) phosphorylation either by direct action on MLC kinase (MLCK) or by inhibition of MLC phosphatase (MLCP), modulating actin–myosin contraction. We found that inhibition of the ROCK pathway in induced pluripotent stem cells, leads to nuclear export of HDAC7 and transcriptional activation of the orphan nuclear receptor NR4A1 while in cells with constitutive ROCK hyperactivity due to loss of function of the RhoGTPase activating protein Oligophrenin-1 (OPHN1), the orphan nuclear receptor NR4A1 is downregulated. Our study identify a new target of ROCK signaling via myosin phosphatase subunit (MYPT1) and Histone Deacetylase (HDAC7) at the nuclear level and provide new insights in the cellular functions of ROCK. - Highlights: • ROCK regulates nucleocytoplasmic shuttling of HDAC7 via phosphorylation of MYPT1. • Nuclear export of HDAC7 and upregulation of NR4A1 occurs with low ROCK activity. • High levels of ROCK activity due to OPHN1 loss of function downregulate NR4A1.

Compulsory Checking of Nuclear Power Engineering Materials by Direct and Eddy Current

Science.gov (United States)

Larionov, V. V.; Lider, A. M.; Sednev, D. A.; Xu, Shupeng

2016-08-01

The testing technology of copper parts designed for dry storage of spent nuclear fuel with application of direct and eddy current has been developed. Measurements results of flaw quantity caused hydrogenation and oxidation processes are presented. Evolution of copper M 001 flaw structure during hydrogenation from gaseous medium is analyzed. It has been demonstrated that the dependence of copper p electrical resistance on number of flaws in its structure has dome shaped character and changes with eddy current frequency change. Number of flaws formed by hydrogen depends on direction (100) or (200) of the crystal structure of copper lattice.

Safety of nuclear installations in the Slovak Republic and activities of the Nuclear Regulatory Authority of the Slovak Republic in 2007

International Nuclear Information System (INIS)

Zemanova, D.

2008-01-01

Prepared pursuant to the provisions of the Atomic Act, the report provides information on the safety of nuclear installation in the Slovak Republic and activities of the Nuclear Regulatory Authority of the Slovak Republic ( UJD SR). UJD SR executes its activities in the area of legislation, issuance of authorizations and permissions for the siting, construction, operation and decommissioning of nuclear installations, in the area of reviews, assessments and control of nuclear safety of nuclear installations and emergency planning, in the area of records and accountability of nuclear materials, independent public information and in the area of international co-operation focused on peaceful uses of nuclear power. Based on the results of inspection activities and evaluation of safety indicators, UJD SR assessed the operation of nuclear installations in the Slovak Republic as safe and reliable. No significant event that could have a negative impact on the personnel, population or environment occurred in 2007. (orig.)

Report of activities of the Japanese Nuclear Data Committee

International Nuclear Information System (INIS)

1977-01-01

A progress report of the Japanese Nuclear Data Committee for the period of April 1, 1975 to March 31, 1977 is presented with emphasis on the topics of Japanese Evaluated Nuclear Data Library, version I(JENDL-1). Activities of working groups are also reported briefly. (auth.)

Nuclear safety activities in the SR of Slovenia in 1986

Energy Technology Data Exchange (ETDEWEB)

Susnik, J [Inst. Jozef Stefan, Ljubljana (Slovenia)

1987-06-15

Currently Yugoslavia has one 632 MWe nuclear power plant (NPP) of PWR design, located at Krsko in the Socialist Republic (SR) of Slovenia. Krsko NPP, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in the SR of Slovenia are mostly related to upgrading the safety of our Krsko NPP and to developing capabilities for use in future units. This report presents the nuclear safety related legislation and organization of the corresponding regulatory body, and the activities related to nuclear safety of the participating organizations in the SR of Slovenia in 1986. (author)

Nuclear safety activities in the SR of Slovenia in 1986

International Nuclear Information System (INIS)

Susnik, J.

1987-06-01

Currently Yugoslavia has one 632 MWe nuclear power plant (NPP) of PWR design, located at Krsko in the Socialist Republic (SR) of Slovenia. Krsko NPP, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in the SR of Slovenia are mostly related to upgrading the safety of our Krsko NPP and to developing capabilities for use in future units. This report presents the nuclear safety related legislation and organization of the corresponding regulatory body, and the activities related to nuclear safety of the participating organizations in the SR of Slovenia in 1986. (author)

Nuclear industry in France: 125000 direct staff and a contribution of 0.71% to the GNP in 2009

International Nuclear Information System (INIS)

Anon.

2011-01-01

In France the nuclear industry employs 125000 people directly which represents 4% of the employment in the industrial sector. The cumulated added value of the enterprises working in the nuclear sector reached 12.3 billions euros in 2009 which represented 0.71% of the gross national product (GNP). During the construction phase of an EPR, 2700 jobs are created and during its service life 500 jobs. In fact if we cumulate direct jobs and indirect jobs (the jobs generated by the purchases realised outside the nuclear sector) and induced jobs (the jobs generated by all the expenses of the staff) we get 1650 jobs during its 80 year long service life. A similar assessment shows that the total number of people in France whose job depends on the nuclear industry was 410.000 in 2009. (A.C.)

Institute of Nuclear physics of Lyon - IPNL, Activity Report 2010-2011

International Nuclear Information System (INIS)

2012-01-01

The Institute of Nuclear physics of Lyon (IPNL) is under the joint supervision of the Claude Bernard University of Lyon (UCBL) and the National Institute of Nuclear and particle physics (IN2P3) of the CNRS (National Centre for Scientific Research). The laboratory studies the properties and interactions of sub-atomic particles. Its activities are largely experimental, with groups involved in a wide range of national and international collaborations concerning particle and astro-particle physics, nuclear matter and the interactions of ions and cluster with matter. In addition, the Institute has important interdisciplinary and applied research activities related to: detectors R and D, confinement of radioactive waste, bio-medical imaging, measurement of environmental levels of radioactive elements. This document presents the activity of the Centre during the 2010-2011 years: 1 - Forewords; 2 - Research activities: Quarks and Leptons, Astro-particles, Hadronic and nuclear matter, Theoretical physics, trans-disciplinary activities, publications, communications, partnerships; 3 - Teaching and research training; 4 - Technical services: electronics, Computers, Mechanics, Instrumentation, Accelerators, LABRADOR metrology service; 5 - Laboratory administration; 6 - Communication and scientific mediation (seminars, conferences, exhibitions..)

Challenging effective public outreach activities for increasing mutual understanding of nuclear energy

International Nuclear Information System (INIS)

Gunji, Ikuko

2006-01-01

An outreach activity is two-way communication for communicating information. The public outreach activities of USA and Japan for increasing mutual understanding of nuclear energy, and the effective outreach activities are stated. On USA, many communicators in the member of ANS (American Nuclear Society) play an active part in the outreach activities for the policy makers, educators, students, and stakeholders. NEI (Nuclear Energy Institute, USA) provides people with useful information such as benefits and safety control system of nuclear energy, and it has carried out an attitude survey. FPL (Florida Power and Light Company) selected the communicators by ten evaluation items and they made a group and a clear grasp of the goal, needs, and plans and then communicated residents, and sent out questionnaires. Some examples of the special education program for training the communicators in USA are described. In Japan, JAEA gave lessons of nuclear energy, radiation and disaster prevention at the primary, junior high and high schools, friendly talks with local residents, preparing the teaching materials with residents and training of communicators. (S.Y.)

Radiopharmaceutical activities administered for paediatric nuclear medicine procedures in Australia

International Nuclear Information System (INIS)

Towson, J.E.; Smart, R.C.; Rossleigh, M.A.

2001-01-01

A survey of radiopharmaceutical activities used at the eight hospital centres specialising in paediatric nuclear medicine in Australia was conducted in 1999-2000 by the Australian and New Zealand Society of Nuclear Medicine and the Australasian Radiation Protection Society. Data on the maximum and minimum administered activities (A max and A min ) as obtained for 43 paediatric imaging procedures are presented. The results are also available on the ANZSNM and ARPS websites at: http://www.anzsnm.org.au and http://www.arps.org.au. The A max values were significantly less than the corresponding Reference Activities for adults determined in a previous study. Activities for individual patients are calculated using surface area scaling at five centres and body weight scaling at three centres. The median values of A max and A min are recommended as Paediatric Reference Activities. The effective dose to patients of various sizes for the Paediatric Reference Activities and both methods of scaling was calculated for each procedure. Copyright (2000) The Australian and New Zealand Society of Nuclear Medicine Inc

Procedures, activities and doses in nuclear medicine cycle in Brazil

International Nuclear Information System (INIS)

Oliveira, Silvia Maria Velasques de

2005-01-01

With the aim of characterizing nuclear medicine procedures performed in Brazil, activities of radiopharmaceuticals used and effective doses to patients, data was collected from nuclear medicine institutions in three regions of the country, namely the Southeast, the Northeast and the South regions, representing public hospitals, university hospitals, private and philanthropic institutions with low, medium and high levels of consumption of radiopharmaceuticals. The three chosen regions are responsible for 92% of radiopharmaceutical consumption and imaging equipment in the country. Accordingly, it was requested of some participating institutions to fulfill manually from individual patients data, to record gender, age, weight, height and activities used, for each type of exam as well as the equipment used. In others, the researcher collected data personally. Per institution, nuclear medicine diagnostic procedures ranged from 700 to 13,000 per year, most of which are myocardial and bone imaging procedures, and imaging equipment ranged, from 1 to 8 machines, one or two head SPECT's (hybrid or not). 26.782 patients protocols were analysed, 24.371 adults and 2.411 children and teenagers. For adult patients, differences were observed in the amount of activities used in diagnostic procedures between public and private institutions, with lower average activities used in public institutions. Activities administered to children and their effective doses were difficult to evaluate due to the incompleteness of individual records. Appropriate individual patient records could be adopted without affecting hospitals routine and contributing for a comprehensive evaluation of the radiation protection of nuclear medicine patients. Data from 8.881 workers were analysed, 346 working at nuclear medicine institutions. For monitored workers and measurably exposed workers in nuclear medicine, the values 2.3 mSv and 5.4 mSv, respectively, for effective annual doses are greater than data

Protoparvovirus Knocking at the Nuclear Door.

Science.gov (United States)

Mäntylä, Elina; Kann, Michael; Vihinen-Ranta, Maija

2017-10-02

Protoparvoviruses target the nucleus due to their dependence on the cellular reproduction machinery during the replication and expression of their single-stranded DNA genome. In recent years, our understanding of the multistep process of the capsid nuclear import has improved, and led to the discovery of unique viral nuclear entry strategies. Preceded by endosomal transport, endosomal escape and microtubule-mediated movement to the vicinity of the nuclear envelope, the protoparvoviruses interact with the nuclear pore complexes. The capsids are transported actively across the nuclear pore complexes using nuclear import receptors. The nuclear import is sometimes accompanied by structural changes in the nuclear envelope, and is completed by intranuclear disassembly of capsids and chromatinization of the viral genome. This review discusses the nuclear import strategies of protoparvoviruses and describes its dynamics comprising active and passive movement, and directed and diffusive motion of capsids in the molecularly crowded environment of the cell.

Identification of uranium signatures in swipe samples on verification of nuclear activities for nuclear safeguards purposes

International Nuclear Information System (INIS)

Pestana, Rafael Cardoso Baptistini

2013-01-01

The use of environmental sampling for safeguards purposes, has been applied by the International Atomic Energy Agency–IAEA since 1996 and are routinely used as a complementary measure to strengthen the traditional nuclear safeguards procedures. The aim is verify if the states signatory to the safeguards agreements are not diverging their peaceful nuclear activities for undeclared nuclear activities. This work describes a new protocol of collect and analysis of the swipe samples for identification of nuclear signatures that may be related to the nuclear activities developed in the inspected facility. This work was used as a case of study a real uranium conversion plant of the nuclear fuel cycle of IPEN. The strategy proposed uses different analytical techniques, such as alpha radiation meter, SEM-EDX and ICP-MS to identify signatures of uranium adhered to the swipe samples. In the swipe samples analysis, it was possible to identify particles of UO 2 F 2 and UF4 through the morphological comparison and semi-quantitative analyses performed by SEM-EDX technique. In this work, methods were used that as a result has the average isotopic composition of the sample, in which the enrichment ranged from 1.453 ± 0.023 to 18.24 % ± 0.15 % in the 235 U isotope. Through these externally collections, a non-intrusive sampling, it was possible to identify enriched material handling activities with enrichment of 1.453 % ± 0.023 % to 6.331 ± 0.055 % in the isotope 235 U, as well as the use of reprocessed material, through the identification of the 236 U isotope. The uncertainties obtained for the n( 235 U)/n( 238 U) ratio varied from 0.40% to 0.86 % for the internal swipe samples. (author)

Bordeaux Gradignan Nuclear Research Centre - CENBG - 2003-2004 Activity report

International Nuclear Information System (INIS)

2005-01-01

The Bordeaux Gradignan Nuclear Research Centre (CENBG) is a joint research unit of the CNRS/IN2P3 and the University Bordeaux 1 'Science and Technology'. The laboratory is composed of permanent researchers, permanent engineers and technicians and PhD students, post-docs and visitors. The scientific program covers a broad range of topics in nuclear physics, particle physics, Astro-particle physics as well as applications of subatomic physics to different multidisciplinary fields. The main research subjects are: exotic nuclei far from the valley of beta stability and rare radioactive decays; neutrino physics (type and mass of the neutrino) and double beta decay; high energy gamma ray astronomy; innovative approaches to nuclear power generation and transmutation of nuclear waste; laser induced nuclear excitations; the effects of various environmental exposures studied via macro, micro or nano-ion beams using the new platform AIFIRA; and finally theoretical studies of nuclear and hadronic matter. All these activities take place within strong national and international collaborations involving the academic world and enabling the selection and training of high-quality students and post-doctoral researchers. To promote dissemination in the regional and national network, within the technologies developed at the laboratory in the domain of characterization with beams of ions or neutrons, there exists a transfer unit ARCANE which works through contracts. This document is the 2003-2004 Activity report of CNBG, content: 1 - Foreword; 2 - Research activities (Astro-particle, downstream of the fuel cycle and nuclear energy; laser nuclear excitations; physics-biology interface; neutrino and low radioactivities; exotic nuclei; theoretical physics); 3 - Services; 4 - Platform and cell facilities; 5 - other actions; 6 - scientific production; 7 - personnel

The nuclear energy in the context of Brazilian law

International Nuclear Information System (INIS)

Faria, N.M. de; Goes Fischer, M.D. de

1981-01-01

The present work has as its objective the study of nuclear activity within the context of Brazilian Law. It focuses on the organizational structure in which, as part of the Directives of the National Nuclear Energy Policy, this activity is being developed through specific legal norms. (Author) [pt

Decommissioning of nuclear facilities: a growing activity in the world

International Nuclear Information System (INIS)

Anasco, Raul

2001-01-01

Nuclear power plants and nuclear facilities are no different from normal buildings and factories. Eventually, they become worn-out or old fashioned, too expensive to maintain or remodel. Decommissioning a nuclear facility is different from retiring other types because of the radioactivity involved. The most important consideration in nuclear decommissioning is to protect workers and the public from exposure to harmful levels of radiation. General criteria and strategies for the decommissioning of nuclear facilities are described as well as the present decommissioning activities of the Argentine CNEA (author)

The Report on Activities of the Nuclear Regulatory Authority of the Slovak Republic. Annual Report 2012

International Nuclear Information System (INIS)

2013-04-01

A brief account of activities carried out by the Nuclear Regulatory Authority of the Slovak Republic (UJD SR) in 2012 is presented. These activities are reported under the headings: Foreword; (1) Legislative activities; (2) Regulatory Activities; (3) Nuclear safety of nuclear power plants; (4) Stress tests on the nuclear power plants; (5) Nuclear Materials in SR; (6) Building Authority; (7) Emergency planning and preparedness; (8) International activities; (9) Public communication; (10) Nuclear Regulatory Authority of the Slovak Republic; (11) Attachments; (12) Abbreviations used.

Medical activities at nuclear disaster. Experience in the accident of Fukushima nuclear power plant

International Nuclear Information System (INIS)

Hasegawa, Arifumi

2013-01-01

The Great East Japan Earthquake brought multiple disaster resulting nuclear accident at Fukushima. Existing medical system for emergency radiation exposure did not work well. Present medical system for the nuclear disaster is maintained temporary with supports by teams from regions other than Fukushima Pref. The radiation protection action must be both for the public and the medical persons. Medical activities for nuclear disaster are still in progress now. Medical system for radiation exposure should be maintained in future for works of decommissioning of reactors. Problems, however, may exist in economy and education of medical personnel. (K.Y.)

Scientific and technological activity in the National Institute of Nuclear Research

International Nuclear Information System (INIS)

Escobar A, L.; Monroy G, F.; Morales R, P.; Romero H, S.

2008-01-01

The present book was published on the occasion of the 50 years of the existence of the Institute, from its creation in 1956 like National Commission of Nuclear Energy to 1979 that arises like National Institute of Nuclear Research. The objective of this publication is the one to leave a writing testimony of all the activities that are realized in the National Institute of Nuclear Research and an accessible language within the diverse subjects boarded. Referring subjects to the activities of nuclear physics, radiochemistry, research and development of materials, dosimetry, plasma physics, production of radiopharmaceuticals, tissue sterilization by radiation, food irradiation and other included. (Author)

'Low-activation' fusion materials development and related nuclear data needs

International Nuclear Information System (INIS)

Cierjacks, S.

1990-01-01

So-called ''low-activation'' materials are presently considered as an important means of improving the safety characteristics of future DT fusion reactors. Essential benefits are expected in various problem areas ranging from operation considerations to aspects of decommissioning and waste disposal. Present programs on ''low-activation'' materials development depend strongly on reliable activity calculations for a wide range of technologically important materials. The related nuclear data requirements and important needs for more and improved nuclear data are discussed. (author). 32 refs, 4 figs, 4 tabs

Law no. 111/1996 on the safe deployment of nuclear activities - A law central to the Romanian nuclear law system

International Nuclear Information System (INIS)

Chiripus, Vlad-Ionut

2004-01-01

Law no. 111/1996 on the safe deployment of nuclear activities was published in its original form in the Official Gazette of Romania, Part no. 267 of 29th October 1996. The complexity of this law prevents from performing a comprehensive analysis of the legal provisions thereof for which reason the author shall review only those aspects he consider to be relevant to the issues dealt with by this law. Furthermore, as the author intends his undertaking to be a comparative analysis of Law no. 111/1996 in its successive stages - from its issue till the present - he uses mostly the present tense even though the law has been amended and in some respects the changes are quite significant. The presentation contains the following three sections: 1. Passing of Law no. 111/1996 on the safe deployment of nuclear activities - a turning point in the development of the Romanian nuclear law; 2. The successive modifications of Law no. 111/1996 on safe deployment of nuclear activities; 3. Law no. 193/2003 for the modification and completion of Law no. 111/1996 on the safe deployment of nuclear activities - a key moment in the modernization of Romanian nuclear law and harmonization with the relevant international requirement. In conclusion, the issue of Law no. 111/1996 on safe deployment of nuclear activities represents a turning point in the development of Romanian nuclear law. From this moment on one may regard it as a modern area of the Romanian law, European in spirit. The pre-existent legal framework - namely the Law no. 61/1974 on the deployment of activities in the Romanian nuclear field - was no longer up to the existing standards and its replacement by a new, modern law, fully harmonized with the European and NATO accession requirements was a must. Such a new, European law was to fully guarantee the safe deployment of nuclear activities for exclusively peaceful purposes, so that the requirements regarding the nuclear safety, protection of professionally exposed personnel

Building Public Confidence in Nuclear Activities

International Nuclear Information System (INIS)

Isaacs, T

2002-01-01

Achieving public acceptance has become a central issue in discussions regarding the future of nuclear power and associated nuclear activities. Effective public communication and public participation are often put forward as the key building blocks in garnering public acceptance. A recent international workshop in Finland provided insights into other features that might also be important to building and sustaining public confidence in nuclear activities. The workshop was held in Finland in close cooperation with Finnish stakeholders. This was most appropriate because of the recent successes in achieving positive decisions at the municipal, governmental, and Parliamentary levels, allowing the Finnish high-level radioactive waste repository program to proceed, including the identification and approval of a proposed candidate repository site. Much of the workshop discussion appropriately focused on the roles of public participation and public communications in building public confidence. It was clear that well constructed and implemented programs of public involvement and communication and a sense of fairness were essential in building the extent of public confidence needed to allow the repository program in Finland to proceed. It was also clear that there were a number of other elements beyond public involvement that contributed substantially to the success in Finland to date. And, in fact, it appeared that these other factors were also necessary to achieving the Finnish public acceptance. In other words, successful public participation and communication were necessary but not sufficient. What else was important? Culture, politics, and history vary from country to country, providing differing contexts for establishing and maintaining public confidence. What works in one country will not necessarily be effective in another. Nonetheless, there appear to be certain elements that might be common to programs that are successful in sustaining public confidence and some of

Building Public Confidence in Nuclear Activities

International Nuclear Information System (INIS)

Isaacs, T

2002-01-01

Achieving public acceptance has become a central issue in discussions regarding the future of nuclear power and associated nuclear activities. Effective public communication and public participation are often put forward as the key building blocks in garnering public acceptance. A recent international workshop in Finland provided insights into other features that might also be important to building and sustaining public confidence in nuclear activities. The workshop was held in Finland in close cooperation with Finnish stakeholders. This was most appropriate because of the recent successes in achieving positive decisions at the municipal, governmental, and Parliamentary levels, allowing the Finnish high-level radioactive waste repository program to proceed, including the identification and approval of a proposed candidate repository site Much of the workshop discussion appropriately focused on the roles of public participation and public communications in building public confidence. It was clear that well constructed and implemented programs of public involvement and communication and a sense of fairness were essential in building the extent of public confidence needed to allow the repository program in Finland to proceed. It was also clear that there were a number of other elements beyond public involvement that contributed substantially to the success in Finland to date. And, in fact, it appeared that these other factors were also necessary to achieving the Finnish public acceptance. In other words, successful public participation and communication were necessary but not sufficient. What else was important? Culture, politics, and history vary from country to country, providing differing contexts for establishing and maintaining public confidence. What works in one country will not necessarily be effective in another. Nonetheless, there appear to be certain elements that might be common to programs that are successful in sustaining public confidence, and some of

Nuclear medicine in developing nations

International Nuclear Information System (INIS)

Nofal, M.M.

1985-01-01

Agency activities in nuclear medicine are directed towards effectively applying techniques to the diagnosis and management of patients attending nuclear medicine units in about 60 developing countries. A corollary purpose is to use these techniques in investigations related to control of parasitic diseases distinctive to some of these countries. Through such efforts, the aim is to improve health standards through better diagnosis, and to achieve a better understanding of disease processes as well as their prevention and management. Among general trends observed for the region: Clinical nuclear medicine; Radiopharmaceuticals; Monoclonal antibodies; Radioimmunoassay (RIA); Nuclear imaging

Sector activities related to spent nuclear fuel in the spanish nuclear power plants; Actuaciones sectoriales en relaci@n con el combustible nuclear gastado en las centrales nucleares espa@olas.

Energy Technology Data Exchange (ETDEWEB)

Francia, L.

2016-07-01

Royal Decree 102/2014 of February 21 defines spent nuclear fuel as the irradiated nuclear fuel in the reactor core that is permanently removed from it. Spent nuclear fuel can be considered either as a usable resource that can be reprocessed, or else as a radioactive waste destined for final disposal. Likewise, spent nuclear fuel management refers to all the activities related to handling, temporary storage, reprocessing and final storage. The article presents all the plans and actions taken by the nuclear power plants, which can be divided into the following two categories: Actions taken by the plants themselves to not only maintain the fuel in stable, safe conditions, but also to characterize and process it for the subsequent management routes established by the current General Radioactive Waste Plan. Activities undertaken under the UNESA umbrella to help implement the above mentioned management routes.

Nuclear Power Plant Control and Instrumentation activities in Finland

International Nuclear Information System (INIS)

Haapanen, P.; Wahlstroem, B.

1990-01-01

Finland has achieved some remarkable achievements in nuclear power production. Existing four plants have some of the best operating records in the world - high capacity factors, low occupational doses and short refuelling outages. Although public opinion was strongly turned against nuclear power after Chernobyl accident, and no decisions for new nuclear plants can be made before next elections in 1991, the nuclear option is still open. Utility companies are maintaining readiness to start new construction immediately after a positive political decision is made. One important component of the good operation history of the Finnish nuclear power plants is connected to the continuous research, development, modification and upgrading work, which is proceeding in Finland. In the following a short description is given on recent activities related to the I and C-systems of the nuclear power plants. (author). 2 tabs

Esculetin attenuates receptor activator of nuclear factor kappa-B ligand-mediated osteoclast differentiation through c-Fos/nuclear factor of activated T-cells c1 signaling pathway

Energy Technology Data Exchange (ETDEWEB)

Baek, Jong Min; Park, Sun-Hyang; Cheon, Yoon-Hee; Ahn, Sung-Jun [Department of Anatomy, School of Medicine, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Lee, Myeung Su [Division of Rheumatology, Department of Internal Medicine, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Institute for Skeletal Disease, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Oh, Jaemin, E-mail: jmoh@wku.ac.kr [Department of Anatomy, School of Medicine, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Institute for Skeletal Disease, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of); Kim, Ju-Young, E-mail: kimjy1014@gmail.com [Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University, Iksan, Jeonbuk 570-749 (Korea, Republic of)

2015-05-29

Esculetin exerts various biological effects on anti-oxidation, anti-tumors, and anti-inflammation. However, the involvement of esculetin in the bone metabolism process, particularly osteoclast differentiation has not yet been investigated. In the present study, we first confirmed the inhibitory effect of esculetin on receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast formation. We then revealed the relationship between esculetin and the expression of osteoclast-specific molecules to elucidate its underlying mechanisms. Esculetin interfered with the expression of c-Fos and nuclear factor of activated T cell c1 (NFATc1) both at the mRNA and protein level with no involvement in osteoclast-associated early signaling pathways, suppressing the expression of various transcription factors exclusively expressed in osteoclasts such as tartrate-resistant acid phosphatase (Trap), osteoclast-associated receptor (Oscar), dendritic cell-specific transmembrane protein (Dcstamp), osteoclast stimulatory transmembrane protein (Ocstamp), cathepsin K, αvβ3 integrin, and calcitonin receptor (Ctr). Additionally, esculetin inhibited the formation of filamentous actin (F-actin) ring-positive osteoclasts during osteoclast differentiation. However, the development of F-actin structures and subsequent bone resorbing activity of mature osteoclasts, which are observed in osteoclast/osteoblast co-culture systems were not affected by esculetin. Taken together, our results indicate for the first time that esculetin inhibits RANKL-mediated osteoclastogenesis via direct suppression of c-Fos and NFATc1 expression and exerts an inhibitory effect on actin ring formation during osteoclastogenesis. - Highlights: • We first investigated the effects of esculetin on osteoclast differentiation and function. • Our data demonstrate for the first time that esculetin can suppress osteoclastogenesis in vitro. • Esculetin acts as an inhibitor of c-Fos and NFATc1 activation. �

Institute of Nuclear physics of Lyon - IPNL, Activity Report 2002-2003

International Nuclear Information System (INIS)

2004-01-01

The Institute of Nuclear physics of Lyon (IPNL) is under the joint supervision of the Claude Bernard University of Lyon (UCBL) and the National Institute of Nuclear and particle physics (IN2P3) of the CNRS (National Centre for Scientific Research). The laboratory studies the properties and interactions of sub-atomic particles. Its activities are largely experimental, with groups involved in a wide range of national and international collaborations concerning particle and astro-particle physics, nuclear matter and the interactions of ions and cluster with matter. In addition, the Institute has important interdisciplinary and applied research activities related to: detectors R and D, confinement of radioactive waste, bio-medical imaging, measurement of environmental levels of radioactive elements. This document presents the activity of the Centre during the 2002-2003 years: 1 - Research topics: Quarks and Leptons; Astro-particles; Hadronic matter; Nuclear matter; Theoretical physics; trans-disciplinary activities; 2 - Technical support to experiments (electronics, Computers, Mechanics, Accelerators, Instrumentation, Radiation protection, LABRADOR metrology service, Administration); 3 - Transverse activities (Training, Science and society, Communication, Documentation); 4 - Scientific life (Scientific production, participation to scientific bodies); 5 - Manpower (Permanent training, Staff)

Institute of Nuclear physics of Lyon - IPNL, Activity Report 2004-2005

International Nuclear Information System (INIS)

2006-01-01

The Institute of Nuclear physics of Lyon (IPNL) is under the joint supervision of the Claude Bernard University of Lyon (UCBL) and the National Institute of Nuclear and particle physics (IN2P3) of the CNRS (National Centre for Scientific Research). The laboratory studies the properties and interactions of sub-atomic particles. Its activities are largely experimental, with groups involved in a wide range of national and international collaborations concerning particle and astro-particle physics, nuclear matter and the interactions of ions and cluster with matter. In addition, the Institute has important interdisciplinary and applied research activities related to: detectors R and D, confinement of radioactive waste, bio-medical imaging, measurement of environmental levels of radioactive elements. This document presents the activity of the Centre during the 2004-2005 years: 1 - Research topics: Quarks and Leptons; Astro-particles; Hadronic and nuclear matter; Theoretical physics; trans-disciplinary activities; 2 - Technical support to experiments (electronics, Computers, Mechanics, Instrumentation, Radiation protection, Accelerators, LABRADOR metrology service, Administration); 3 - Transverse activities (Training, Science and society, Communication, Documentation); 4 - Scientific life (publications, seminars, conferences, exhibitions, PhDs..); 5 - Manpower (Permanent training, Staff)

Institute of Nuclear Physics of Orsay - IPNO. Activity report 2002-2003

International Nuclear Information System (INIS)

2004-01-01

The Institute of Nuclear Physics of Orsay (IPN Orsay) is undertaking nuclear physics research that is centered on the nature of matter and its ultimate constituents. By the nature of its scientific activities, the IPN is at the heart of a wide range of international collaborations. IPN Orsay is a unit of both the CNRS (National Centre of Scientific Research) and of the Paris-Sud University. It plays a vital role in experiments being carried out by wide-ranging collaborations at major experimental facilities most notably in Europe, the United States and Japan. Its own facilities allows the IPN to carry out fundamental theoretical and experimental research studies in nuclear physics, astro-particle physics, radiochemistry but also in pluri-disciplinary activities. This document presents the activity of the Institute during the 2002-2003 years: 1 - Scientific activities: Nuclear structure; Hadronic physics and matter; Astro-particles; Theoretical physics; Hot nuclei; Energy and Environment; Particle Matter Interactions; Physics-Biology-Medicine Interfaces in Neurobiology, Oncology and Genomic; Knowledge dissemination and communication; 2 - Technical activities: General and technical departments; Instrumentation/Detectors; Accelerators Division; 3 - Appendixes: Publications, meetings, seminars, workshops, PhDs, Staff

Institute of Nuclear Physics of Orsay - IPNO. Activity report 2006/2007

International Nuclear Information System (INIS)

2008-01-01

The Institute of Nuclear Physics of Orsay (IPN Orsay) is undertaking nuclear physics research that is centered on the nature of matter and its ultimate constituents. By the nature of its scientific activities, the IPN is at the heart of a wide range of international collaborations. IPN Orsay is a unit of both the CNRS (National Centre of Scientific Research) and of the Paris-Sud University. It plays a vital role in experiments being carried out by wide-ranging collaborations at major experimental facilities most notably in Europe, the United States and Japan. Its own facilities allows the IPN to carry out fundamental theoretical and experimental research studies in nuclear physics, astro-particle physics, radiochemistry but also in pluri-disciplinary activities. This document presents the activity of the Institute during the 2006-2007 years: 1 - Scientific activities: Nuclear structure; Hadronic physics and matter; Astro-particles; Theoretical physics; Hot nuclei; Energy and Environment; Particle Matter Interactions; Knowledge dissemination and communication; 2 - Administration; 3 - Technical activities: General and technical departments; Accelerators Division; 4 - Appendixes: Publications, Proceedings, Conferences, workshops, collaboration meetings, Seminars, Schools and lectures, PhDs, accreditations to supervise research, Books and works, Staff, Visitors

Safety surveillance of activities on nuclear pressure components in China

International Nuclear Information System (INIS)

Li Ganjie; Li Tianshu; Yan Tianwen

2005-01-01

The nuclear pressure components, which perform the nuclear safety functions, are one of the key physical barriers for nuclear safety. For the national strategy on further development of nuclear power and localization of nuclear pressure components, there still exist some problems in preparedness on the localization. As for the technical basis, what can not be overlooked is the management. Aiming at the current problems, National Nuclear Safety Administration (NNSA) has taken measures to strengthen the propagation and popularization of nuclear safety culture, adjust the review and approval policies for nuclear pressure components qualification license, establish more stringent management requirements, and enhance the surveillance of activities on nuclear pressure equipment. Meanwhile, NNSA has improved the internal management and the regulation efficiency on nuclear pressure components. At the same time, with the development and implementation of 'Rules on the Safety Regulation for Nuclear Safety Important Components' to be promulgated by the State Council of China, NNSA will complete and improve the regulation on nuclear pressure components and other nuclear equipment. (authors)

Institute of Nuclear Physics of Orsay - IPNO. Activity report 2000-2001

International Nuclear Information System (INIS)

2002-01-01

The Institute of Nuclear Physics of Orsay (IPN Orsay) is undertaking nuclear physics research that is centered on the nature of matter and its ultimate constituents. By the nature of its scientific activities, the IPN is at the heart of a wide range of international collaborations. IPN Orsay is a unit of both the CNRS (National Centre of Scientific Research) and of the Paris-Sud University. It plays a vital role in experiments being carried out by wide-ranging collaborations at major experimental facilities most notably in Europe, the United States and Japan. Its own facilities allows the IPN to carry out fundamental theoretical and experimental research studies in nuclear physics, astro-particle physics, radiochemistry but also in pluri-disciplinary activities. This document presents the activity of the Institute during the 2000-2001 years: 1 - Scientific activities: exotic and hot nuclei; nucleon sub-structure; Mesons, Quarks and Gluons; Astro-particles; Theoretical physics (nuclear structure and reactions - N-body systems, fields theory applied to particle physics and to condensed matter physics); Radiochemistry; Physics of Downstream Cycle and Spallation Reactions; Particle Matter Interactions; Physics-Biology-Medicine Interfaces in Neurobiology, Oncology and Genomic; Science, Education, History and Society; 2 - Technical activities: General and technical departments; Detectors and associated instrumentation; Accelerators; Scientific and technical activities

Activities of the IPEN laboratory (CNEN/SP - Brazil) of nuclear metrology

International Nuclear Information System (INIS)

Dias, M.S.; Koskinas, M.F.; Pocobi, E.; Silva, C.A.M.; Machado, R.R.

1987-01-01

The determination of radionuclide activity for radioactive sources and standardized solutions is reported as the main purpose of the IPEN laboratory of nuclear metrology. The measurement systems installed in the laboratory, the measurable activity intervals and some of the standardized radionuclides (emphasizing the ones used in nuclear medicine) are presented. (M.A.C.) [pt

EPRI activities in support of new nuclear plant deployment

International Nuclear Information System (INIS)

Mulford, T.

2007-01-01

This paper describes the challenges to new plant deployment in the United States and discusses the role of the Electric Power Research Institute (EPRI) in efforts to address these challenges. These technical challenges include completing remaining design work, licensing review, and standardization required to ensure that new LWRs are a competitive near-term option. The costs for construction, licensing, and operation of new nuclear plants are uncertain and this uncertainty, along with concerns about construction schedule form a financial challenge to investment. Because the new process for licensing nuclear power plants in the United States has not been fully demonstrated, regulatory concerns also serve as a challenge to near-term commitments to build new nuclear power plants. EPRI is working in concert with utilities and vendors to upgrade certified LWR designs and obtain certification of new LWR designs. Specific technical areas being addressed by EPRI projects include updating the Utility Requirements Document (URD), seismic resolution, radiation protection, radioactive waste management, the development of utility planning tools, and staff optimization. EPRI's key on-going project, the New Plant Deployment Program Model (NPDPM), is designed to help prospective and actual new nuclear plant managers and staff to identify schedule and resource requirements from the point of the decision to build a plant through to the start of commercial operation. This model will describe and organize key activities and assess schedule, activity duration, logic relationships and critical path analysis. The new plant licensing and deployment process is a five to ten year activity representing a significant financial investment that requires coordination with federal and state regulators, designers, architect engineers, and numerous other contributing organizations. Planning is crucial to schedule and budget control. EPRI has also supported projects to quantify the environmental

Worldwide nuclear power

International Nuclear Information System (INIS)

Anon.

1981-01-01

Worldwide Nuclear Power (WNP) is a companion volume to Update. Our objective in the publication of WNP is to provide factual information on nuclear power programs and policies in foreign countries to U.S. policymakers in the Federal Government. Facts about the status of nuclear activities abroad should be available to those who are instrumental in defining the direction of nuclear power in the U.S. WNP is prepared by the Office of Nuclear Energy from reports obtained from foreign embassies in Washington, U.S. Embassies overseas, foreign and domestic publications, participation in international studies, and personal communications. It consists of two types of information, tabular and narrative. Domestic nuclear data is included only where its presence is needed to provide easy and immediate comparisons with foreign data. In general, complete U.S. information will be found in Update

Future of international cooperative activity for graduate school education in nuclear field

International Nuclear Information System (INIS)

Obara, Toru

2008-01-01

Further improvement of graduate school education in nuclear field is one of the important issues in universities in nuclear field. The COE-INES program has performed international cooperative activities for graduate school education with foreign universities in nuclear field. There are a lot of possibilities in international cooperation with foreign universities for graduate school education. The use of Internet can be a strong tool for the activities. (author)

Results of activities of the State Office for Nuclear Safety in state supervision of nuclear safety of nuclear facilities and radiation protection in 2003

International Nuclear Information System (INIS)

Kovar, P.

2004-01-01

The report summarises results of activities of the State Office for Nuclear Safety (SUJB) in the supervision of nuclear safety and radiation protection in the Czech Republic. The first part of the report evaluates nuclear safety of nuclear installations and contains information concerning the results of supervision of radiation protection in 2003 in the Czech Republic. The second part of the report describes new responsibilities of the SUJB in the domain of nuclear, chemical, bacteriological (biological) and toxin weapons ban. (author)

Progress report on nuclear data activities in Sweden for 1980

International Nuclear Information System (INIS)

Conde, H.

1981-04-01

The report contains information from laboratories in Sweden about measurements and compilations which are relevant to obtain nuclear data for research and development in different applied fields of nuclear physics. The report also contains short information about changes of existing experimental facilities. Reports relevant to the nuclear energy field are given of neutron cross section measurements and studies of the fission process. Reports are also given of nuclear structure and decay data measurements especially fission product nuclear data measurements of importance for the research on reactor safety and nuclear waste handling. Charged particle and photonuclear cross section measurements with applications in e.g. activation analysis and the production of radioisotopes for medical use are reported as well.(author)

A Study of Nuclear Recoils in Liquid Argon Time Projection Chamber for the Direct Detection of WIMP Dark Matter

Energy Technology Data Exchange (ETDEWEB)

Cao, Huajie [Princeton Univ., NJ (United States)

2014-11-01

Robust results of WIMP direct detection experiments depend on rm understandings of nuclear recoils in the detector media. This thesis documents the most comprehensive study to date on nuclear recoils in liquid argon - a strong candidate for the next generation multi-ton scale WIMP detectors. This study investigates both the energy partition from nuclear recoil energy to secondary modes (scintillation and ionization) and the pulse shape characteristics of scintillation from nuclear recoils.

Status of nuclear data activities at Karlsruhe

Energy Technology Data Exchange (ETDEWEB)

Kawano, Toshihiko [Kyushu Univ., Fukuoka (Japan)

1997-03-01

This is a brief introduction to nuclear data activity at Karlsruhe Research Center. Some URLs concerned are given. Topics mentioned here are, the FENDL and JEF/EFF project at INR, and measurements of neutron capture cross sections at IK III. (author)

Activities report of Instituto de Pesquisas Energeticas e Nucleares -IPEN - 1993

International Nuclear Information System (INIS)

1994-08-01

This is an activity report of 1993 year from Instituto de Pesquisas Energeticas Nucleares - IPEN, one brazilian organization that form personnel actuate in radioprotection at the man and environment. Their works in social and environmental applications of nuclear energy, developing of reactors, alternative technologies to energy generation, advanced technologies and infra-structure activities are presented. (C.M.)

Activities of the USSR Nuclear Data Center

International Nuclear Information System (INIS)

Usachev, L.M.; Popov, V.J.

1972-01-01

In any activity, one must start with the determination of its usefulness: in the field of nuclear data, this consists in the compilation of request lists, analogous to the RENDA list, issued in cooperation by the CCDN and the Nuclear Data Center of the N. D. S. At Obninsk, we have a somewhat different approach for our RENDA entries. We do not ask our reactor physicists to formulate their requests for concrete microscopic measurements or to share the requested accuracies between the different needed cross sections, because they are not really specialists in this field. We ask them to formulate their requirements, based on technical and economical considerations, for the tolerable uncertainties on the reactor parameters which are, of course, linked to the uncertainties on nuclear data. In addition, we ask them to give us the sensitivity coefficients for the values of reactor parameters as a function of modifications of the nuclear data. These sensitivity coefficients include all the needed information concerning the reactor in view of the determination of the requirements on nuclear data. The problem of the determination of the set of measurements necessary to obtain the reactor parameters with the required accuracies must, from our point of view be treated mathematically by specialists of the planification theory, working in close connection with specialists of microscopic data measurements and of integral experiments. In order to work out an optimal planing, it is necessary to evaluate the relative costs of the experiments; it is also essential to evaluate correctly the correlations between the uncertainties of the measurements and the estimation of their costs. Moreover, we may know all the information concerning the present accuracy on the measurements of a given type, first of all for a comparative evaluation of the costs of the experiments and, secondly, for drawing conclusions on the possible necessity for more accurate values by comparing the accuracies which

Present situation of Japan's public acceptance of nuclear energy - JAERO's activities

International Nuclear Information System (INIS)

Akama, Kozo

1993-01-01

Electricity demand in Japan is expected to keep increasing without doubt, reflecting her constant economic growth and the rising living standard of the people. The target figure is 20.5% or a capacity of 52 million kW, and 11 nuclear power plants with a capacity of 12 million kW are under construction. Whether such a target is achievable depends on whether or not information activities will succeed in obtaining public consensus to the siting of the new nuclear power plants. According to the result of public opinion poll by the Science and Technology Agency in 1992, 73 % people recognize the necessity of nuclear energy, however, 10% feel uneasy as well. It seems that the scale of damage caused by severe accidents and the distrust against nuclear promoters are major factors to create uneasiness among the people. This presentation describes public information activities by JAERO, the Japan Atomic Energy Relations Organization (JAERO), a non-profit organization established in 1969. There is no secret strategy or specific remedy to obtain public consensus on the nuclear issues, and an immediate effect is in no way expected, either. It is all the more imperative to enhance the safety of nuclear power plants, pursue further the operational safety, and to gain the trust from the general public. We must investigate more effective means for public information activities to gain public consent, and implement them positively and continuously with beliefs. We are prepared to do so. Activities for public acceptance of nuclear energy may vary in line with the situation in each country. It is therefore very meaningful to have the experts' gatherings like this workshop to exchange, views on the public acceptance

Activity report 1993

International Nuclear Information System (INIS)

1994-01-01

This activity report of the DSIN (Direction of Nuclear Installations Safety) is divided into 13 chapters bearing on: (1)Nuclear safety (2) Nuclear safety organisation (3) Regulations (4) Nuclear installations inspections (5) Crisis organisation (6) Information and communication (7) International relations (8) PWR (9)Other reactors (10) Experimental reactors, laboratories and other installations (11) Fuel cycle centers (12) Radioactive wastes storages (13) Nuclear installations definitively stopped

Activities on covariance estimation in Japanese Nuclear Data Committee

Energy Technology Data Exchange (ETDEWEB)

Shibata, Keiichi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

1997-03-01

Described are activities on covariance estimation in the Japanese Nuclear Data Committee. Covariances are obtained from measurements by using the least-squares methods. A simultaneous evaluation was performed to deduce covariances of fission cross sections of U and Pu isotopes. A code system, KALMAN, is used to estimate covariances of nuclear model calculations from uncertainties in model parameters. (author)

Guidelines for attendance and registration for radiological emergencies of nuclear accidents

International Nuclear Information System (INIS)

1994-01-01

Today in Brazil the use of nuclear energy is becoming an usual practice in various activities. Thus, must be a matter of great weight, directions for attendance and registration for radiological emergencies or nuclear accidents. This work shows the planning elaborated by the Comissao Nacional de Energia Nuclear (Brazilian CNEN) for nuclear plants, aiming avoid the injurious effects from the ionizing radiation exposure, radionuclides release or the direct or indirect exposure of ionizing radiation, that proceeding from a radiological emergencies or a nuclear accidents. (J.A.M.M.)

Activity-based protein profiling of the hepatitis C virus replication in Huh-7 hepatoma cells using a non-directed active site probe

Directory of Open Access Journals (Sweden)

McKay Craig S

2010-02-01

Full Text Available Abstract Background Hepatitis C virus (HCV poses a growing threat to global health as it often leads to serious liver diseases and is one of the primary causes for liver transplantation. Currently, no vaccines are available to prevent HCV infection and clinical treatments have limited success. Since HCV has a small proteome, it relies on many host cell proteins to complete its life cycle. In this study, we used a non-directed phenyl sulfonate ester probe (PS4≡ to selectively target a broad range of enzyme families that show differential activity during HCV replication in Huh-7 cells. Results The PS4≡ probe successfully targeted 19 active proteins in nine distinct protein families, some that were predominantly labeled in situ compared to the in vitro labeled cell homogenate. Nine proteins revealed altered activity levels during HCV replication. Some candidates identified, such as heat shock 70 kDa protein 8 (or HSP70 cognate, have been shown to influence viral release and abundance of cellular lipid droplets. Other differentially active PS4≡ targets, such as electron transfer flavoprotein alpha, protein disulfide isomerase A5, and nuclear distribution gene C homolog, constitute novel proteins that potentially mediate HCV propagation. Conclusions These findings demonstrate the practicality and versatility of non-directed activity-based protein profiling (ABPP to complement directed methods and accelerate the discovery of altered protein activities associated with pathological states such as HCV replication. Collectively, these results highlight the ability of in situ ABPP approaches to facilitate the identification of enzymes that are either predominantly or exclusively labeled in living cells. Several of these differentially active enzymes represent possible HCV-host interactions that could be targeted for diagnostic or therapeutic purposes.

Kazakhstan center of nuclear technology safety. Approach of work, possibilities and plans

International Nuclear Information System (INIS)

Tazhibaeva, I.L; Romanenko, O.G.; Cherepnin, Yu. S.; Planchon, H.P; Imel, G; Newton, D.

2000-01-01

NTSC was created in November, 1997 as an association of experts in all the areas of nuclear and radiation safety and radioactive materials handling The main goal of creation is investigation of safety aspects of nuclear power in the Republic of Kazakhstan, taking into account the interests of environment and human health protection in the regions of nuclear industry units allocation. The Center was created with support and special cooperation with the US, has grown and developed cooperative ties with several other countries.In the report are enumerate the main directions of NTSC activity, general directions of cooperation, current and completed activity, planing activity

Nuclear recoil energy scale in liquid xenon with application to the direct detection of dark matter

International Nuclear Information System (INIS)

Sorensen, Peter; Dahl, Carl Eric

2011-01-01

We show for the first time that the quenching of electronic excitation from nuclear recoils in liquid xenon is well-described by Lindhard theory, if the nuclear recoil energy is reconstructed using the combined (scintillation and ionization) energy scale proposed by Shutt et al. We argue for the adoption of this perspective in favor of the existing preference for reconstructing nuclear recoil energy solely from primary scintillation. We show that signal partitioning into scintillation and ionization is well described by the Thomas-Imel box model. We discuss the implications for liquid xenon detectors aimed at the direct detection of dark matter.

Scientific activities 1980 Nuclear Research Center ''Democritos''

International Nuclear Information System (INIS)

1982-01-01

The scientific activities and achievements of the Nuclear Research Center Democritos for the year 1980 are presented in the form of a list of 76 projects giving title, objectives, responsible of each project, developed activities and the pertaining lists of publications. The 16 chapters of this work cover the activities of the main Divisions of the Democritos NRC: Electronics, Biology, Physics, Chemistry, Health Physics, Reactor, Scientific Directorate, Radioisotopes, Environmental Radioactivity, Soil Science, Computer Center, Uranium Exploration, Medical Service, Technological Applications, Radioimmunoassay and Training. (N.C.)

Progress report on nuclear spectroscopic studies, June 1, 1977--May 31, 1978

International Nuclear Information System (INIS)

Bingham, C.R.; Riedinger, L.L.; Guidry, M.W.

1978-01-01

Research progress is summarized for activities of the University of Tennessee department of physics and astronomy in the following areas: (1) in-beam spectroscopy of high-spin state, (2) Coulomb-nuclear interference and inelastic heavy ion scattering (3) Coulomb excitation, nuclear theory, (4) nuclear structure studies with alpha-induced direct reactions, and (5) developmental activities

A study on the nuclear technology policy

Energy Technology Data Exchange (ETDEWEB)

Yang, Maeng Ho; Ham, C. H.; Kim, H. J.; Chung, W. S.; Lee, T. J.; Lee, B. O.; Yun, S. W.; Choi, Y. M.; Eom, T. Y

1998-01-01

This study analyzed the major issues as the research activities for the support of establishment and implementation of national policy. The analyses were focused on the recommendations of the responsive direction of national policy in positive and effective manners in accordance with the changes of international nuclear affairs. This study also analyzed the creation of environmental foundation for effective implementation of the national policy and national R and D investment such as securing national consensus and openings of policy information to the public. The major results of the role and position of nuclear policy, trends of nuclear policy and nuclear R and D activities of USA, France, Japan, Asian developing countries etc. and international trends of small- and medium-sized reactor as well as spin-offs of nuclear R and D activities, were analyzed. (author). 66 refs., 27 tabs., 15 figs

Radiological characterization of nuclear plants under decommissioning

International Nuclear Information System (INIS)

Mincarini, M.

1989-01-01

In the present work a description of major problems encountered in qualitative and quantitative radiological characterization of nuclear plants for decommissioning and decontamination purpose is presented. Referring to several nuclear plant classes activation and contamination processes, direct and indirect radiological analysis and some italian significant experience are descripted

Activation Analysis and Nuclear Research in Burma

Energy Technology Data Exchange (ETDEWEB)

Thiele, R. W.

1971-07-01

Research endeavours in the field of Nuclear Sciences in Burma appear to be concentrated in three main Institutions. These are the Chemistry and Physics Departments of the Rangoon Arts & Science University and the Union of Burma Applied Research Institute (UBARI). In view of possible forthcoming developments an expanded research programme, which is to be implemented on the basis of a five year plan, has been drawn up. Research topics included in this programme are predominantly of practical interest and aimed at a contribution by nuclear methods, in particular activation analysis, to the technological and industrial needs of the country.

Nuclear Forensics' role in analyzing nuclear trafficking activities

International Nuclear Information System (INIS)

Hrnecek, E.; Mayer, K.; Schubert, A.; Wallenius, M.

2010-01-01

Nuclear forensics aims at identifying origin and intended use of nuclear material using information inherent to the nuclear material.The information gathered in nuclear forensics include isotopic composition, elemental composition, impurities and age of the material, macroscopic appearance and microstructure. The information so collected helps to solve criminal cases and put the individuals involved in nuclear trafficking in jails. The information also helps to improve safeguards and physical protection measures at place of theft or diversion to prevent future thefts or diversions.

Current status and future directions of nuclear education in elementary and secondary education. Several measures for revitalization

International Nuclear Information System (INIS)

Hirose, Masami; Tsuruta, Takao; Shibata, Toshikazu

1999-01-01

It has been a long time since a necessity to deepen education concerning energy, in particular, nuclear-related education in the elementary and secondary education curriculums in Japan was pointed out. To attain this objective, the nuclear industry and the education industry should work in close cooperation. As the Ministry of Education's Course of Study substantially regulates the direction of school education in Japan, nuclear energy experts should be involved in its development from an early stage in an appropriate manner. At least, training for the teaching profession for science teachers should include experiments related to nuclear energy and radiation. It is considered quite effective to provide incumbent teachers with various training opportunities by nuclear organizations in order to solve the problem in question. (author)

ENEA activities on seismic isolation of nuclear and non-nuclear structures

International Nuclear Information System (INIS)

Martelli, A.; Masoni, P.; Forni, M.; Indirli, M.; Spadoni, B.; Di Pasquale, G.; Lucarelli, V.; Sano, T.; Bonacina, G.; Castoldi, A.

1989-01-01

Work on seismic isolation of nuclear and non-nuclear structures was started by ENEA in cooperation with ISMES in 1988. The first activity consisted of a proposal for guidelines for seismically isolated nuclear plants using high-damping, steel-laminated elastomer bearings. This is being performed in the framework of an agreement with General Electric Company. Furthermore, research and development work has been defined and recently initiated to support development of the seismic isolation guidelines as well as that of qualification procedures for seismic isolation systems in general. The present R and D work includes static and dynamic experiments on single bearings, shake table tests with multi-axial simultaneous excitations on reduced-scale mockups of isolated structures supported by multiple bearings, and dynamic tests on large-scale isolated structures with on-site test techniques. It also includes the development and validation of finite-element nonlinear models of the single bearings, as well as those of simplified design tools for the analysis of the isolated structures dynamic behavior. Extension of this work is foreseen in a wider national frame

Implementing the strategy of multileveled PI activities to promote rapid nuclear power development

International Nuclear Information System (INIS)

Chen Gang

2005-01-01

The first two decades of the 21st century is the golden time for nuclear power development in China. According to the nuclear power development program laid down by the State Development and Reform Commission, nearly 30 units of 1000MW will be built in the next 15 years, so as to meet fastgrowing energy demand, to optimize energy mix and to alleviate environmental pollution. Under such a new situation, based on the public information practice and experience during the construction and operation of Qinshan Nuclear Power Complex where the first commercial NPP originated in the Mainland of China, this paper emphasizes on the necessity of establishment of an active and open strategy of multileveled nuclear energy public information activities and implementation of the strategy with adoption of various forms of nuclear energy popularization means, including seminars, contests, exhibitions, site tour to nuclear power plants, reports by mass media, hosting questions-answering dialogue by experts via Internet, TV and radio programs, newspapers and journals , etc.. Thus through the nuclear energy public information activity the recognition and confidence of the public, especially the local community and the public in vicinity of new nuclear power sites on the nuclear energy can be enhanced, and the nuclear power program can gain their support. Furthermore, the fine social environment for nuclear power development can be fostered. (authors)

Salvaging of nuclear waste by nuclear-optical converters

Science.gov (United States)

Karelin, A. V.; Shirokov, R. V.

2007-06-01

In modern conditions of power consumption growing in Russia, apparently, it is difficult to find alternative to further development of nuclear power engineering. The negative party of nuclear power engineering is the spent fuel of nuclear reactors (radioactive waste). The gaseous and fluid radioactive waste furbished of highly active impurity, dumps in atmosphere or pools. The highly active fluid radioactive waste stores by the way of saline concentrates in special tanks in surface layers of ground, above the level of groundwaters. A firm radioactive waste bury in pods from a stainless steel in underground workings, salt deposits, at the bottom of oceans. However this problem can be esteemed in a positive direction, as irradiation is a hard radiation, which one can be used as a power source in nuclear - optical converters with further conversion of optical radiation into the electric power with the help of photoelectric converters. Thus waste at all do not demand special processing and exposure in temporary storehouses. And the electricity can be worked out in a constant mode within many years practically without gang of a stimulus source, if a level of a residual radioactivity and the half-lives of component are high enough.

Rattling nucleons: New developments in active interrogation of special nuclear material

International Nuclear Information System (INIS)

Runkle, Robert C.; Chichester, David L.; Thompson, Scott J.

2012-01-01

Active interrogation is a vigorous area of research and development due to its promise of offering detection and characterization capabilities of special nuclear material in environments where passive detection fails. The primary value added by active methods is the capability to penetrate shielding - special nuclear material itself, incidental materials, or intentional shielding - and advocates hope that active interrogation will provide a solution to the problem of detecting shielded uranium, which is at present the greatest obstacle to interdiction efforts. The technique also provides a unique benefit for quantifying nuclear material in high background-radiation environments, an area important for nuclear material safeguards and material accountancy. Progress has been made in the field of active interrogation on several fronts, most notably in the arenas of source development, systems integration, and the integration and exploitation of multiple fission and non-fission signatures. But penetration of interrogating radiation often comes at a cost, not only in terms of finance and dose but also in terms of induced backgrounds, system complexity, and extended measurement times (including set up and acquisition). These costs make the calculus for deciding to implement active interrogation more subtle than may be apparent. The purpose of this review is thus to examine existing interrogation methods, compare and contrast their attributes and limitations, and identify missions where active interrogation may hold the most promise.

The management plan preparation activities nuclear power plant in Indonesia

International Nuclear Information System (INIS)

Utomo

2011-01-01

A feasibility Study that has been updated show that two nuclear power units with each unit of power up to 1000 MWe can represent decently an economical alternative energy supply. It added that the available time schedule was quite tight so that the preparation for the development must be starting first. This paper will discuss the preparation of plans of the first nuclear power plant which includes program activities, the structure of contracts, schedules of activities and funding. From the information obtained to date that in addition to a candidate site that is ready to be built in Muria peninsula is still required another potential alternative site besides to search other complete data information. This site investigation activities completed within the time schedule was passed ''critical path'', so that these activities should be carried out intensively and obey the time. This paper describes the steps that need to be prepared to welcome the first nuclear power plant, after reviewing the various input above and apply the reality in Indonesia as the initial conditions. (author)

Low activation material design methodology for reduction of radio-active wastes of nuclear power plant

International Nuclear Information System (INIS)

Hasegawa, A.; Satou, M.; Nogami, S.; Kakinuma, N.; Kinno, M.; Hayashi, K.

2007-01-01

Most of the concrete shielding walls and pipes around a reactor pressure vessel of a light water reactor become low level radioactive waste at decommission phase because they contain radioactive nuclides by thermal-neutron irradiation during its operation. The radioactivity of some low level radioactive wastes is close to the clearance level. It is very desirable in terms of life cycle cost reduction that the radioactivity of those low level radioactive wastes is decreased below clearance level. In case of light water reactors, however, methodology of low activation design of a nuclear plant has not been established yet because the reactor is a large-scale facility and has various structural materials. The Objectives of this work are to develop low activation material design methodology and material fabrication for reduction of radio-active wastes of nuclear power plant such as reinforced concrete. To realize fabrication of reduced radioactive concrete, it is necessary to develop (1) the database of the chemical composition of raw materials to select low activation materials, (2) the tool for calculation of the neutron flux and the spectrum distribution of nuclear plants to evaluate radioactivity of reactor components, (3) optimization of material process conditions to produce the low activation cement and the low activation steels. Results of the data base development, calculation tools and trial production of low activation cements will be presented. (authors)

Graduate nuclear engineering programmes motivate educational and research activities

International Nuclear Information System (INIS)

Mavko, B.

2000-01-01

Some fifteen years ago the University of Ljubljana, Faculty for Mathematics and Physics together with the national research organisation the J. Stefan jointly established a Graduate programme of Nuclear Engineering. From the onset, the programme focused on nuclear technology, nuclear safety, and reactor physics and environment protection. Over the years this graduate programme has became the focal point of nuclear related, research and educational activities in Slovenia. It has grown into a meeting ground for recognised national and distinguished foreign educators and experienced professionals from the industry. In conjunction with an important national project, supported by the Slovenian government, entitled 'Jung Researcher' it also enhances the knowledge transfer to the next generation. Since the programme was introduced, the interest for this programme has been steadily growing. Accordingly, a number of PhD and MS degrees in NE have been awarded. The graduates of this programme have encountered very good job opportunities in nuclear as well as in non-nuclear sector. (author)

PA activity by using nuclear power plant safety demonstration and analysis

International Nuclear Information System (INIS)

Tsuchiya, Mitsuo; Kamimae, Rie

1999-01-01

INS/NUPEC presents one of Public acceptance (PA) methods for nuclear power in Japan, 'PA activity by using Nuclear Power Plant Safety Demonstration and Analysis', by using one of videos which is explained and analyzed accident events (Loss of Coolant Accident). Safety regulations of The National Government are strictly implemented in licensing at each of basic design and detailed design. To support safety regulation activities conducted by the National Government, INS/NLTPEC continuously implement Safety demonstration and analysis. With safety demonstration and analysis, made by assuming some abnormal conditions, what impacts could be produced by the assumed conditions are forecast based on specific design data on a given nuclear power plants. When analysis results compared with relevant decision criteria, the safety of nuclear power plants is confirmed. The decision criteria are designed to help judge if or not safety design of nuclear power plants is properly made. The decision criteria are set in the safety examination guidelines by taking sufficient safety allowance based on the latest technical knowledge obtained from a wide range of tests and safety studies. Safety demonstration and analysis is made by taking the procedure which are summarized in this presentation. In Japan, various PA (Public Acceptance) pamphlets and videos on nuclear energy have been published. But many of them focused on such topics as necessity or importance of nuclear energy, basic principles of nuclear power generation, etc., and a few described safety evaluation particularly of abnormal and accident events in accordance with the regulatory requirements. In this background, INS/NUPEC has been making efforts to prepare PA pamphlets and videos to explain the safety of nuclear power plants, to be simple and concrete enough, using various analytical computations for abnormal and accident events. In results, PA activity of INS/NUPEC is evaluated highly by the people

Disposal of high-activity nuclear wastes

International Nuclear Information System (INIS)

Hamilton, E.I.

1983-01-01

A discussion is presented on the deep sea ocean disposal for high-activity nuclear wastes. The following topics are covered: effect of ionizing radiation on marine ecosystems; pathways by which radionuclides are transferred to man from the marine environment; information about releases of radioactivity to the sea; radiological protection; storage and disposal of radioactive wastes and information needs. (U.K.)

Perspective of nuclear power policy change and trend of nuclear industry activities from energy policy of European countries

International Nuclear Information System (INIS)

Murakami, Tomoko; Matsuo, Yuji; Nagatomi, Yu

2009-01-01

European countries of nuclear power phase-out have changed to commit to the future of nuclear energy due to the intended low-carbon power, the energy security concerns and the need of replacement reactors as current reactors approach the end of operating lives, as Italian government has passed legislation to build new nuclear power plants. This article described the perspective of nuclear power policy changes in UK, Italy an Sweden and the business trend and the SWOT analysis of related electric utilities (EDF, Enel and Vattenfall) and nuclear industries (Areva NP, Sheffield Forgemasters, ENSA and Studsvik). Policy implications obtained from this analysis were commented for Japanese nuclear industry activities. (T. Tanaka)

Institute of Nuclear physics of Lyon - IPNL, Activity Report 2006-2007

International Nuclear Information System (INIS)

2008-01-01

The Institute of Nuclear physics of Lyon (IPNL) is under the joint supervision of the Claude Bernard University of Lyon (UCBL) and the National Institute of Nuclear and particle physics (IN2P3) of the CNRS (National Centre for Scientific Research). The laboratory studies the properties and interactions of sub-atomic particles. Its activities are largely experimental, with groups involved in a wide range of national and international collaborations concerning particle and astro-particle physics, nuclear matter and the interactions of ions and cluster with matter. In addition, the Institute has important interdisciplinary and applied research activities related to: detectors R and D, confinement of radioactive waste, bio-medical imaging, measurement of environmental levels of radioactive elements. This document presents the activity of the Centre during the 2006-2007 years: 1 - Research topics: Quarks, Leptons and FUNDAMENTAL INTERACTIONS; Astro-particles; Hadronic and nuclear matter; Theoretical physics; trans-disciplinary activities; 2 - Technical support to experiments (electronics, Computers, Mechanics, Instrumentation, Accelerators, LABRADOR metrology service); 3 - Research support (administration, documentation, partnership and valorisation, quality assurance, permanent training, open university); 4 - Scientific life (publications, seminars, conferences, exhibitions, PhDs..)

Institute of Nuclear physics of Lyon - IPNL, Activity Report 2000-2001

International Nuclear Information System (INIS)

Chartoire, M.; Flores, S.; Hernaus, Z.; Jarroux-Declais, D.; Kibler, M.; Martin, J.P.

2002-01-01

The Institute of Nuclear physics of Lyon (IPNL) is under the joint supervision of the Claude Bernard University of Lyon (UCBL) and the National Institute of Nuclear and particle physics (IN2P3) of the CNRS (National Centre for Scientific Research). The laboratory studies the properties and interactions of sub-atomic particles. Its activities are largely experimental, with groups involved in a wide range of national and international collaborations concerning particle and astro-particle physics, nuclear matter and the interactions of ions and cluster with matter. In addition, the Institute has important interdisciplinary and applied research activities related to: detectors R and D, confinement of radioactive waste, bio-medical imaging, measurement of environmental levels of radioactive elements. This document presents the activity of the Centre during the 2000-2001 years: 1 - Forewords; 2 - Quarks and Leptons; 3 - Astro-particles; 4 - High-density hadronic matter; 5 - Nuclear matter; 6 - Theoretical physics; 7 - pluri-disciplinary activities; 8 - Technical services (electronics, Computers, Mechanics, Instrumentation, Accelerators, experiments support, radiation protection, health and safety, administration); 9 - Training, communication, documentation; 10 - Scientific production (publications, seminars, conferences, exhibitions, PhDs..); 11 - Staff and visitors; 12 - Organigram

Activities co-operations on nuclear data in China in 1991

International Nuclear Information System (INIS)

Cai Dunjiu

1992-01-01

The activities and co-operations on nuclear data in 1991 are introduced briefly. The meetings which were held by CNDC in 1991 are listed. The international meetings, workshops or training courses in the nuclear data field which were attended by chinese scientists in 1991 are presented. The international meeting held in China, the international cooperation projects during 1985 ∼ 1991 and the foreign scientists in nuclear fields visited CNDC/CIAE in 1991 are also described

Nuclear data activities at the NEA Data Bank

International Nuclear Information System (INIS)

Hasegawa, A.; Henriksson, H.; Mompean, F.J.; Nordborg, C.; Rugama, Y.; Sartori, E.

2008-01-01

The OECD Nuclear Energy Agency (NEA) Data Bank is an international centre of reference for its member countries with respect to basic nuclear tools, such as computer codes and nuclear data. The Data Bank is part of an international network of data centres in charge of the compilation and dissemination of basic nuclear data. The NEA nuclear data services include the collection of data, validation and distribution of the Nuclear Data libraries via the NEA web-site, offering easy access to databases containing bibliographical and experimental information, as well as evaluated libraries, e.g., the Joint Evaluated Fission and Fusion (JEFF) library. The selection and distribution of chemical thermodynamic data for radioactive waste management applications is the subject of the Thermochemical Database Project (TDB), supported by 17 organisations in 12 member countries and co-ordinated by the NEA Data Bank. In support of data evaluation, and generation of project oriented data libraries, relevant computer codes in the field of nuclear models, experimental data processing and evaluated data processing are made available to experts with the support of the member countries. Large collections of benchmark experiments for data and code validation are also available from the NEA in areas such as criticality safety (ICSBEP), radiation shielding (SINBAD), fuel performance (IFPE) and reactor physics (IRPhE). The NEA Working Party on international nuclear data Evaluation Co-operation (WPEC) provides a framework for co-operative activities between the six major evaluation projects (BROND, CENDL, Endf, FENDL, JEFF and JENDL). (authors)

Radiopharmaceutical activities administered for paediatric nuclear medicine procedures in Australia

International Nuclear Information System (INIS)

Towson, J.E.; Smart, R.C.; Rossleigh, M.A.; Children's Hospital, Randwick, NSW

2000-01-01

A survey of radiopharmaceutical activities used at the eight hospital centres specialising in paediatric nuclear medicine in Australia was conducted in 1999-2000 by the Australian and New Zealand Society of Nuclear Medicine and the Australasian Radiation Protection Society. Data on the maximum and minimum administered activities was obtained for 43 paediatric imaging procedures. The maximum values were significantly less than the corresponding Reference Activities for adults determined in a previous study. Activities for individual patients are calculated using surface area scaling at five centres and body weight scaling at three centres. The median values of A max and A min are recommended as Paediatric Reference Activities. The effective dose to patients of various sizes for the Paediatric Reference Activities and both methods of scaling was calculated for each procedure. Copyright (2000) Australasian Radiation Protection Society Inc

Nukem Nuclear GmbH activity in CIS countries in the sphere of radioactive wastes and nuclear fuel handling

International Nuclear Information System (INIS)

Vaihard, A.

1997-01-01

NUKEM was founded in 1960 as one of the first nuclear companies in the German Federal Republic. With this work, Nukem developed not only processes for producing fuels and fuel elements, but also the plant and equipment necessary for this production. NUKEM engineers further planned and built the total infrastructure for operation of these manufacturing plants, including the supply and waste plants, the nuclear ventilation technology, the laboratory and the remote handling manipulators. The scope of activities extends from the design to the manufacture and construction of turnkey plants. The points of emphasis are plants and processes for the Treatment of radioactive wastes, storage and container technology, the decommissioning of nuclear plants, the planning and building of nuclear laboratories, the design of fuel elements and safety and monitoring technology. NUKEM Nuclear Technology is an independent division within the plant construction of the NUKEM Group. Additionally, five further subsidiary and partner companies have a spectrum of nuclear technology activities. Altogether, Nukem Nuclear Technology counts around 300 highly qualified engineers, scientists and technicians. Numerous Designs and patents underline the strength of innovative output in this area. The engineering service offered by NUKEM includes the whole spectrum of process and technology as well as construction and start-up as general engineer or general contractor: Basic engineering; Detail engineering; Procurement; Personnel Training; Start-up. Engineering and safety for nuclear technology: Process and plant planing; Media supply and disposal; Building and architecture; Electrical, measurement and control technology; Safety and accident analysis; Licensing procedures. Treatment of Radioactive Wastes: - Volume reduction of soil and liquid wastes: vaporizer plants; evaporator plants; incineration plants; pyrolysis plants; compactors. - Chemical/physical processes for residue treatment: boric acid

OECD Nuclear Energy Agency activities on PTS evaluation

International Nuclear Information System (INIS)

Miller, A.

1997-01-01

The Safety Division of the OECD Nuclear Energy Agency provides the secretariat for the Committee on the Safety of Nuclear Installations (CSNI), which deals with technological aspects, and for the Committee for Nuclear Regulatory Activities (CNRA) dealing with regulatory aspects. Under these committees, activities are carried out through five Principal Working Groups (PWGs). The relevant group for PTS is PWG-3 on the integrity of structures and components. There is also PWG-2 on coolant system behavior, but the thermal hydraulic aspects of PTS have not been considered by PWG-2. PWG-3 carries out it work in a similar manner to the IAEA IWG LMNPP, by preparing reports and organizing round robins, Specialists Meetings and Workshops. The general context of RPV PTS has been considered in several workshops: on the 'Complementary roles of Fracture Mechanics and Non-Destructive Examination in the Safety Assessment of Components' in Wuerenlingen in 1988; on the 'Safety Assessment of RPVs' in Espoo in 1990; and on 'Fracture Mechanics Verification by Large Scale Testing' (joint with IAEA) at Oak Ridge in 1992. Activities specific to PTS have been an international survey on regulatory practices on PTS carried out in 1991, and a series of fracture round robins addressing PTS conditions organized by GRS in Germany and ORNL in the USA. 3 refs, 5 tabs

OECD Nuclear Energy Agency activities on PTS evaluation

Energy Technology Data Exchange (ETDEWEB)

Miller, A [NEA Nuclear Safety Div., Issy-les-Moulineaux (France)

1997-09-01

The Safety Division of the OECD Nuclear Energy Agency provides the secretariat for the Committee on the Safety of Nuclear Installations (CSNI), which deals with technological aspects, and for the Committee for Nuclear Regulatory Activities (CNRA) dealing with regulatory aspects. Under these committees, activities are carried out through five Principal Working Groups (PWGs). The relevant group for PTS is PWG-3 on the integrity of structures and components. There is also PWG-2 on coolant system behavior, but the thermal hydraulic aspects of PTS have not been considered by PWG-2. PWG-3 carries out it work in a similar manner to the IAEA IWG LMNPP, by preparing reports and organizing round robins, Specialists Meetings and Workshops. The general context of RPV PTS has been considered in several workshops: on the `Complementary roles of Fracture Mechanics and Non-Destructive Examination in the Safety Assessment of Components` in Wuerenlingen in 1988; on the `Safety Assessment of RPVs` in Espoo in 1990; and on `Fracture Mechanics Verification by Large Scale Testing` (joint with IAEA) at Oak Ridge in 1992. Activities specific to PTS have been an international survey on regulatory practices on PTS carried out in 1991, and a series of fracture round robins addressing PTS conditions organized by GRS in Germany and ORNL in the USA. 3 refs, 5 tabs.

Background activity values from the nuclear power plants at the spanish coast

International Nuclear Information System (INIS)

Montesinos, M.

1979-01-01

The radiological data obtained from gross alpha and beta measurements are exposed. Also the activity of differents long lived radionuclides from a significant number of the Cantabric coast sea biota samples is given, where the Lemoniz nuclear power plant is located, as well as those from the Mediterranean coast, where the Vandellos nuclear power plant is sitting. The activity transfer through the different steps of the food-chain in each biota sample, as well as the activity values for sediments and water are presented. Eventually, a comparatif study of the background activity values between the two coasts mentioned above, is made. Also a comparison between the preoperational and operational values for the operating Vandellos nuclear power plant is described. (author)

Saclay Center of Nuclear Studies, Direction of Materials and Nuclear Fuels, Department of Physico-Chemistry, Division of Physical Chemistry. 1968 Annual report

International Nuclear Information System (INIS)

Schmidt, M.; Clerc, M.; Le Calve, J.; Bourene, M.; Lesigne, B.; Gillois, M.; Devillers, C.; Arvis, M.; Gilles, L.; Moreau, M.; Sutton, J.; Faraggi, M.; Desalos, J.; Tran Dinh Son; Barat, F.; Hickel, B.; Chachaty, C.; Forchioni, A.; Shiotani, M.; Larher, Y.; Maurice, P.; Le Bail, H.; Nenner, T.

1969-03-01

This document is the 1968 annual report of research activities at the Physico-Chemistry Department (Physical Chemistry Division), part of the Directorate of Materials and Nuclear Fuels of the CEA Saclay center of nuclear studies. The report is divided into two main parts: radiolysis and photolysis studies (gaseous phase, condensed phase), and general physico-chemical studies (sorption, molecular jets)

Legal framework related to access to information and public participation on nuclear activity

International Nuclear Information System (INIS)

Arias, M. C.; Bernaldez, A.L.; Ghiggeri, M.; Tula, C.

2011-01-01

The right of access to information by citizens about activities related to scientific and technological development of nuclear energy for peaceful uses, has evolved over time. Governments began to perceive the necessity and the benefits of informing the community, who manifested certain prejudices about nuclear activity as a consequence of the propelling of nuclear bombs in Nagasaki and Hiroshima. With the advent of environmental law and the influence of its principles, the idea of transparency of information in the nuclear field was imposed, and also the importance of both the inhabitants of countries with nuclear developments and neighbouring countries who may be affected by the bordering effects of ionizing radiation, could have access to information and to participate actively. The access to information and citizen participation has been institutionalized and reflected in international regulations through international conventions subscribed by our country and nationally through the National Constitution, the Provincials Constitutions, the City of Buenos Aires Constitution, Laws No. 25.675, 25.831 and PEN Decree No. 1172/03, among others. The present work aims to make an overview of the legal framework related to access to information on nuclear activity. (authors) [es

Intercomparison of 131I activity measurements in nuclear medicine

International Nuclear Information System (INIS)

Kim, G. Y.; Yang, H. K.; Lim, C. I.; Lee, H. K.; Jeong, H. K.

2004-01-01

Activity measurements in nuclear medicine using a dose calibrator have been performed for several decades and their reliability has varied. To minimise the radiation dose to patients with radionuclides, it is necessary to ensure that the sample administered is accurately assayed. Recognizing the importance of intercomparison in nuclear medicine and the need to make access to activity standards traceable to the international measurement system, the KFDA, as a national secondary standard dosimetry laboratory (SSDL), started an intercomparison program in 2002. This program was initiated by survey to all nuclear medicine centres regarding general information about their dose calibrators, radioisotopes etc. 71 nuclear medicine centres (79 dose calibrators) participated in the intercomparison program with 131 I isotope. To assess the accuracy of clinical measurements of the activity of 131 I solutions and to determine the reason for the disagreement, an intercomparison was conducted using 4 ml aliquots in 10 ml P6 vial with a total activity in the region of 10 -20 MBq. The reference time of decay for all solutions was 0:00 on 25 September 2002. The half-life used was 8.04 days. For the evaluation of solution in KFDA, a sealed, high pressure and re-entrant ionisation chamber, NPL-CRC radionuclide calibrators were used. The verification of our calibration quality was by means of a comparison with the Korea Primary Standard Laboratory (KRISS). The activity ratio of KFDA to KRISS for the 131 I solutions is 1.011. The difference between the value quoted by the clinic, A hospital and the value obtained by the KFDA, A KFDA , is expressed as a percent deviation, i.e. DEV(%) 100x(A hospital -A KFDA )/A KFDA . From the data obtained it was found that 61% of the calibrators showed a deviation within +/-5%; 23% had a deviation in the range 5% 131 I solution activity measurements, using dose calibrators in Koreas, and also to provide the participants with a traceable standard to

Activities in the field of small nuclear power reactors

Energy Technology Data Exchange (ETDEWEB)

Baranaev, Yu.D.; Dolgov, V.V.; Sergeev, Yu.A. [Physics and Power Eng. Inst., Obninsk (Russian Federation). State Res. Centre

1997-10-01

Considerable efforts have been undertaken for development, design, construction and operation of small nuclear power plants (SNPP) in Russia. Systematic work in this area was started in the mid-1950s. The driving force for this activity was the awareness that the use of nuclear fuel would practically solve the problem of fuel transportation. As far as the remote northern regions are concerned, this provides the key advantage of nuclear over conventional energy sources. The activity in the field of SNPP has included pre-design analytical feasibility studies and experimental research including large-scale experiments on critical assemblies, thermal and hydraulic test facilities, research and development work, construction and operation of pilot and demonstration SNPPs, and finally, construction and more than 20 years of operation of the commercial SNPP, namely Bilibino nuclear co-generation plant (NCGP) located in Chukotka autonomous district, which is one of the most remote regions in the far north-east of Russia. In recent years, studies have been carried out on the development of several new SNPP designs using advanced reactors of the new generation. Among these are the second stage of Bilibino NCGP, floating NCGP VOLNOLOM-3, designated for siting in the Arctic sea coast area, and a nuclear district heating plant for the town of Apatity, in the Murmansk region. In this paper, the background and current status of the SNPPs are given, and the problems as well as prospects of small nuclear reactors development and implementation are considered. (orig.) 20 refs.

Mid-Term Direction of JAEA Nuclear Fuel Cycle Engineering Laboratories

International Nuclear Information System (INIS)

Ojima, H.; Sugiyama, T.; Tanaka, K.; Takeda, S.; Nomura, S.

2009-01-01

1. Introduction Nuclear Fuel Cycle Engineering Laboratories (NCL) of Japan Atomic Energy Agency (JAEA) has sufficient experience and ability through its 50 year operation to establish the next generation closed cycle. It strives to become a world-class Center Of Excellence. 2. Current activity in NCL: 1) - Recycling of MOX fuel: The Tokai Reprocessing Plant has reprocessed 29 tons of MOX fuel from the ATR Fugenh as a part of 1140 tons of cumulative spent fuel reprocessed. JAEA has supported the pre-operation of the Rokkasho Reprocessing Plant. An innovative MOX pellet fabrication process has been developed in the Plutonium Fuel Development Center, and a part of products obtained by the development are used as a fuel for core confirmation test for re-startup of the FBR Monjuh. Characterization of MOX containing Am and Np has been studied and a new data such as melting point and thermal conductivity were reported. In the Chemical Processing Facility, a hot lab., an advanced aqueous reprocessing technology has been tested for TRU recovery, economical improvement, etc., using irradiated MOX fuel from the FR Joyoh. 2) - Supporting Activity: JAEA has improved the effectiveness and efficiency of existing safeguards activities. The Integrated Safeguards approach for all facilities in NCL has been implemented since August, 2008, as a pioneer and a good example in the world. To reduce anxiety among local residents, NCL has explained its operation plans and exchanged information and opinions with them concerning potential risks to health and environment. Recently, stake-holder participation in the management of NCL was started from the view point of Corporate Social Responsibility. In April, 2008, the agreement was signed with Idaho National Laboratory for cooperation of personnel training in fuel cycle area. 3. Mid-Term Direction: In Japan, feasibility and direction of the transition period from the LWR era to the FBR era should be discussed for the next several years. Study

Mid-Term Direction of JAEA Nuclear Fuel Cycle Engineering Laboratories

Energy Technology Data Exchange (ETDEWEB)

Ojima, H.; Sugiyama, T.; Tanaka, K.; Takeda, S.; Nomura, S. [Tokai-mura, Ibaraki-ken 319-1194 (Japan)

2009-06-15

1. Introduction Nuclear Fuel Cycle Engineering Laboratories (NCL) of Japan Atomic Energy Agency (JAEA) has sufficient experience and ability through its 50 year operation to establish the next generation closed cycle. It strives to become a world-class Center Of Excellence. 2. Current activity in NCL: 1) - Recycling of MOX fuel: The Tokai Reprocessing Plant has reprocessed 29 tons of MOX fuel from the ATR Fugenh as a part of 1140 tons of cumulative spent fuel reprocessed. JAEA has supported the pre-operation of the Rokkasho Reprocessing Plant. An innovative MOX pellet fabrication process has been developed in the Plutonium Fuel Development Center, and a part of products obtained by the development are used as a fuel for core confirmation test for re-startup of the FBR Monjuh. Characterization of MOX containing Am and Np has been studied and a new data such as melting point and thermal conductivity were reported. In the Chemical Processing Facility, a hot lab., an advanced aqueous reprocessing technology has been tested for TRU recovery, economical improvement, etc., using irradiated MOX fuel from the FR Joyoh. 2) - Supporting Activity: JAEA has improved the effectiveness and efficiency of existing safeguards activities. The Integrated Safeguards approach for all facilities in NCL has been implemented since August, 2008, as a pioneer and a good example in the world. To reduce anxiety among local residents, NCL has explained its operation plans and exchanged information and opinions with them concerning potential risks to health and environment. Recently, stake-holder participation in the management of NCL was started from the view point of Corporate Social Responsibility. In April, 2008, the agreement was signed with Idaho National Laboratory for cooperation of personnel training in fuel cycle area. 3. Mid-Term Direction: In Japan, feasibility and direction of the transition period from the LWR era to the FBR era should be discussed for the next several years. Study

Cloning retinoid and peroxisome proliferator-activated nuclear receptors of the Pacific oyster and in silico binding to environmental chemicals.

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