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Sample records for nuclear laboratory les

  1. Nuclear physics laboratory

    International Nuclear Information System (INIS)

    Deruytter, A.J.

    1979-01-01

    The report summarizes the main activities of the Linear Electron Accelerator Section of the Physics Laboratory of the State University of Ghent. The research fields are relative to: 1. Nuclear fission. 2. Photonuclear reactions. 3. Nuclear spectroscopy and positron annihilation. 4. Dosimetry. 5. Theoretical studies. (MDC)

  2. Nuclear physics laboratory

    International Nuclear Information System (INIS)

    Deruytter, A.J.

    1978-01-01

    The report summarizes the main activities of the Linear Electron Accelerator Section of the Physics Laboratory of the State University of Ghent. The research fields are relative to: 1. Nuclear fission. 2. Photonuclear reactions. 3. Nuclear spectroscopy and positron annihilation. 4. Dosimetry. 5. Theoretical studies. (MDC)

  3. Nuclear physics laboratory

    International Nuclear Information System (INIS)

    Deruytter, A.J.

    1980-01-01

    The report summarizes the main activities of the linear Electron Accelerator Section of the Physics Laboratory of the State University of Ghent. The research fields are relative to: 1. Nuclear fission 2. Photonuclear reactions 3. Nuclear spectroscopy and positron annihilation 4. Dosimetry 5. Theoretical studies. (MDC)

  4. Nuclear electronics laboratory manual

    International Nuclear Information System (INIS)

    1984-05-01

    The Nuclear Electronics Laboratory Manual is a joint product of several electronics experts who have been associated with IAEA activity in this field for many years. The manual does not include experiments of a basic nature, such as characteristics of different active electronics components. It starts by introducing small electronics blocks, employing one or more active components. The most demanding exercises instruct a student in the design and construction of complete circuits, as used in commercial nuclear instruments. It is expected that a student who completes all the experiments in the manual should be in a position to design nuclear electronics units and also to understand the functions of advanced commercial instruments which need to be repaired or maintained. The future tasks of nuclear electronics engineers will be increasingly oriented towards designing and building the interfaces between a nuclear experiment and a computer. The manual pays tribute to this development by introducing a number of experiments which illustrate the principles and the technology of interfacing

  5. Triangle Universities Nuclear Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    This report contains brief papers that discusses the following topics: Fundamental Symmetries in the Nucleus; Internucleon Interactions; Dynamics of Very Light Nuclei; Facets of the Nuclear Many-Body Problem; and Nuclear Instruments and Methods.

  6. Triangle Universities Nuclear Laboratory

    International Nuclear Information System (INIS)

    1991-01-01

    This report contains brief papers that discusses the following topics: Fundamental Symmetries in the Nucleus; Internucleon Interactions; Dynamics of Very Light Nuclei; Facets of the Nuclear Many-Body Problem; and Nuclear Instruments and Methods

  7. Nuclear Reactor Engineering Analysis Laboratory

    International Nuclear Information System (INIS)

    Carlos Chavez-Mercado; Jaime B. Morales-Sandoval; Benjamin E. Zayas-Perez

    1998-01-01

    The Nuclear Reactor Engineering Analysis Laboratory (NREAL) is a sophisticated computer system with state-of-the-art analytical tools and technology for analysis of light water reactors. Multiple application software tools can be activated to carry out different analyses and studies such as nuclear fuel reload evaluation, safety operation margin measurement, transient and severe accident analysis, nuclear reactor instability, operator training, normal and emergency procedures optimization, and human factors engineering studies. An advanced graphic interface, driven through touch-sensitive screens, provides the means to interact with specialized software and nuclear codes. The interface allows the visualization and control of all observable variables in a nuclear power plant (NPP), as well as a selected set of nonobservable or not directly controllable variables from conventional control panels

  8. Nuclear Physics Laboratory. Annual report no.21

    International Nuclear Information System (INIS)

    1986-11-01

    The annual report of the Nuclear Physics Laboratory covers the following subjects: 1) the accelerators; 2) work in experimental nuclear physics; 3) research in particle physics: experiments at TRIUMF and CERN; 4) work in applied nuclear physics; and 5) work in theoretical physics

  9. Nuclear Physics Laboratory. Annual report no.22

    International Nuclear Information System (INIS)

    1987-11-01

    The annual report of the Nuclear Physics Laboratory covers the following subjects: 1) the accelerators; 2) work in experimental nuclear physics; 3) research in particle physics: experiments at TRIUMF and CERN; 4) work in applied nuclear physics; and 5) work in theoretical physics

  10. Nuclear Physics Laboratory: Annual report

    International Nuclear Information System (INIS)

    1987-05-01

    Topics covered in this annual report are: astrophysics and cosmology, giant resonances in excited nuclei, heavy ions, fundamental symmetries, nuclear reactions, accelerator mass spectrometry, accelerators and ion sources, nuclear instrumentation, computer systems and the booster linac project

  11. Nuclear Physics Laboratory annual report

    International Nuclear Information System (INIS)

    Trainor, T.A.; Weitkamp, W.G.

    1985-04-01

    Progress is reported in these areas: nuclear physics relevant to astrophysics and cosmology; nuclear structure of 14 N; the Cabibbo angle in Fermi matrix elements of high j states; giant resonances; heavy ion reactions; 0 + - 0 - isoscalar parity mixing in 14 N; parity mixing in hydrogen and deuterium; medium energy physics; and accelerator mass spectrometry. Accelerators and ion sources, nuclear instrumentation, and computer systems at the university are discussed, including the booster linac project

  12. Nuclear Physics Laboratory annual report 1982

    International Nuclear Information System (INIS)

    1982-06-01

    This Annual Report describes the activities of the Nuclear Physics Laboratory of the University of Washington for the year ending approximately April 30, 1982. As in previous years we report here on a strong nuclear physics research program based upon use of the Laboratory's principal facility, an FN tandem and injector accelerator system. Other major elements of the Laboratory's current program include the hydrogen parity mixing experiment, intermediate-energy experiments conducted at Los Alamos and elsewhere, an accelerator mass spectrometry program emphasizing 10 Be and 14 C measurements on environmental materials, and a number of researches carried out by Laboratory members working collaboratively at other institutions both in this country and abroad

  13. Nuclear Physics Laboratory annual report

    International Nuclear Information System (INIS)

    1983-04-01

    Progress is described in the following areas: astrophysics and cosmology, nuclear structure and light ion reactions, giant resonances in radiative capture, heavy ion reations, nuclear tests of fundamental symmetries, parity violation in hydrogen, medium energy physics, accelerator mass spectrometry (C-14 and Be-10 radiochronology programs), accelerators and ion sources, magnetic spectrograph/momentum filter, instrumentation and experimental techniques, computers and computing, and the superconducting booster for the University of Washington tandem accelerator. Publications are listed

  14. Molten salts in nuclear reactors; Les sels fondus dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Dirian, J; Saint-James, [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1959-07-01

    Collection of references dealing with the physicochemical studies of fused salts, in particular the alkali and alkali earth halides. Numerous binary, ternary and quaternary systems of these halides with those of uranium and thorium are examined, and the physical properties, density, viscosity, vapour pressure etc... going from the halides to the mixtures are also considered. References relating to the corrosion of materials by these salts are included and the treatment of the salts with a view to recuperation after irradiation in a nuclear reactor is discussed. (author) [French] Bibliographie regroupant l'etude physico-chimique des sels fondus, en particulier des halogenures alcalins et alcalino-terreux. On etudie de nombreux systemes binaires, ternaires et quaternaires de ces halogenures avec des halogenures d'uranium, et de thorium. On etudie egalement les proprietes physiques des halogenures ou des melanges d'halogenures (densite, viscosite, tension de vapeur, etc...). On donne egalement des references quant a la corrosion des materiaux par ces sels, et le traitement de ceux-ci en vue de recuperation, apres irradiation dans un reacteur nucleaire. (auteur)

  15. Nuclear Accident Dosimetry at Argonne National Laboratory; Dosimetrie dans les Cas d'Accidents Nucleaires au Laboratoire National d'Argonne; 0421 041b 0423 0416 0411 0410 0414 ; Dosimetria en Casos de Accidente Nuclear en el Laboratorio Nacional de Argonne

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, L. L.; Duffy, T. L.; Sedlet, J.; O' Neil, D. P. [Argonne National Laboratory, Argonne, IL (United States)

    1965-06-15

    This report summarizes current planning at Argonne National Laboratory with respect to dose determination following a criticality incident. The discussion relates chiefly to two types of commercially obtained dosimeter packages, and includes the results of independent calibrations performed at the Laboratory. The primary dosimeter system incorporates threshold detectors developed at Oak Ridge National Laboratory for neutron spectrum measurement. Fission foil decay calibration curves have been determined experimentally for scintillation counting equipment routinely used at Argonne. This equipment also has been calibrated for determination of sodium-24 activity in blood. Dosimeter units of the type designed at Savannah River Laboratory are deployed as secondary stations. Data from the neutron activation components of these units will be used to make corrections to, the neutron spectrum for intermediate as well as thermal energies. The epicadmium copper foil activation, for a given fluence of intermediate energy neutrons, has been shown relatively insensitive to neutron spectrum variations within the region, and a meaningful average of copper cross-section has been determined. Counter calibration factors determined at Argonne are presented for the copper, indium, and sulphur components. The total neutron fluence is computed using the corrected spectrum in conjunction with a capture probability function and the blood sodium result. One or more specifications of neutron dose then may be calculated by applying the spectral information to the appropriate conversion function. The gamma portion of the primary dosimeter package contains fluorescent rods and a thermoluminescent dosimeter in addition to a two-phase chemical dosimeter. The gamma dosimeter in the secondary package is a polyacrylamide solution which is degraded by exposure to gamma radiation. The absorbed dose is derived from a measured change insolution viscosity. Difficulties in evaluation, placement, and

  16. Twenty years of an international nuclear laboratory

    International Nuclear Information System (INIS)

    Suschny, O.

    1982-01-01

    The laboratories of the International Atomic Energy Agency were started in 1959 with a physics laboratory, a chemistry laboratory and an electronics workshop. Early work centred on absolute radionuclide calibrations and on assessments of the consequences of radioactive fallout from atomic weapons testing on the health of the people in Member States. Subsequently, work was started on the use of radioactive and stable isotopes in agriculture, in hydrology, in medical applications, in pest and insect control and with the entry into force of the Nuclear Non-Proliferation Treaty a Safeguard Analytical Laboratory was established to provide support for the Agency's safeguards inspection responsibilities. Together with WHO a network of 43 Secondary Standard Dosimetry Laboratories were set up in Member States to improve dosimetric accuracy in medicine and radiation protection worldwide. Throughout their history, the laboratories of the IAEA have lent great importance on their training programmes that have enabled many workers in nuclear or nuclear related research to gain experience. This emphasis on training has been stressed particularly to benefit research workers from developing countries

  17. Polarized targets at triangle universities nuclear laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Seely, M.L. [North Carolina State Univ., Raleigh, NC (United States); Gould, C.R. [North Carolina State Univ., Raleigh, NC (United States); Haase, D.G. [North Carolina State Univ., Raleigh, NC (United States); Huffman, P.R. [Triangle Universities Nuclear Laboratory, Durham, NC 27708 (United States); Keith, C.D. [North Carolina State Univ., Raleigh, NC (United States); Roberson, N.R. [Triangle Universities Nuclear Laboratory, Durham, NC 27708 (United States); Tornow, W. [Triangle Universities Nuclear Laboratory, Durham, NC 27708 (United States); Wilburn, W.S. [Triangle Universities Nuclear Laboratory, Durham, NC 27708 (United States)

    1995-03-01

    A summary of the polarized and aligned nuclear targets which have been constructed and used at the Triangle Universities Nuclear Laboratory is given. Statically polarized targets, typically operating at a temperature of 12 mK and a magnetic field of 7 T, have provided significant nuclear polarization in {sup 1}H, {sup 3}He, {sup 27}Al, {sup 93}Nb and {sup 165}Ho. A rotating, aligned {sup 165}Ho target is also in use. A {sup 3}He melting curve thermometer has been developed for use in statically polarized targets. A dynamically polarized proton target is under construction. ((orig.))

  18. Idaho national laboratory - a nuclear research center

    International Nuclear Information System (INIS)

    Zaidi Mohammed, K.

    2006-01-01

    Full text: The Idaho National Laboratory (INL) is committed to providing international nuclear leadership for the 21st Century, developing and demonstrating compelling national security technologies, and delivering excellence in science and technology as one of the United States Department of Energy's (DOE) multi program national laboratories. INL runs three major programs - Nuclear, Security and Science. Nuclear programs covers the Advanced test reactor, Six Generation IV technology concepts selected for Rand D, targeting tumors - Boron Neutron Capture therapy. Homeland Security establishes the Control System Security and Test Center, Critical Infrastructure Test Range evaluates technologies on a scalable basis, INL conducts high performance computing and visualization research and science. To provide leadership in the education and training, INL has established an Institute of Nuclear Science and Engineering (INSE) under the Center for Advanced Energy Studies (CAES) and the Idaho State University (ISU). INSE will offer a four year degree based on a newly developed curriculum - two year of basic science course work and two years of participation in project planning and development. The students enrolled in this program can continue to get a masters or a doctoral degree. This summer INSE is the host for the training of the first international group selected by the World Nuclear University (WNU) - 75 fellowship holders and their 30 instructors from 40 countries. INL has been assigned to provide future global leadership in the field of nuclear science and technology. Here, at INL, we keep safety first above all things and our logo is 'Nuclear leadership synonymous with safety leadership'. (author)

  19. 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

  20. Idaho National Laboratory - Nuclear Research Center

    International Nuclear Information System (INIS)

    Zaidi, M.K.

    2005-01-01

    Full text: The Idaho National Laboratory is committed to the providing international nuclear leadership for the 21st Century, developing and demonstrating compiling national security technologies, and delivering excellence in science and technology as one of the United States Department of Energy's (DOE) multiprogram national laboratories. INL runs three major programs - Nuclear, Security and Science. nuclear programs covers the Advanced test reactor, Six Generation technology concepts selected for R and D, Targeting tumors - Boron Neutron capture therapy. Homeland security - Homeland Security establishes the Control System Security and Test Center, Critical Infrastructure Test Range evaluates technologies on a scalable basis, INL conducts high performance computing and visualization research and science - INL facility established for Geocentrifuge Research, Idaho Laboratory, a Utah company achieved major milestone in hydrogen research and INL uses extremophile bacteria to ease bleaching's environmental cost. To provide leadership in the education and training, INL has established an Institute of Nuclear Science and Engineering (Inset). The institute will offer a four year degree based on a newly developed curriculum - two year of basic science course work and two years of participation in project planning and development. The students enrolled in this program can continue to get a masters or a doctoral degree. This summer Inset is the host for the training of the first international group selected by the World Nuclear University (WNU) - 75 fellowship holders and their 30 instructors from 40 countries. INL has been assigned to provide future global leadership in the field of nuclear science and technology. Here, at INL, we keep safety first above all things and our logo is 'Nuclear leadership synonymous with safety leadership'

  1. Technology transfer from Canadian nuclear laboratories

    International Nuclear Information System (INIS)

    MacDonald, R.D.; Evans, W.; MacEwan, J.R.; Melvin, J.G.

    1985-09-01

    Canada has developed a unique nuclear power system, the CANDU reactor. AECL - Research Company (AECL-RC) has played a key role in the CANDU program by supplying its technology to the reactor's designers, constructors and operators. This technology was transferred from our laboratories to our sister AECL companies and to domestic industries and utilities. As CANDUs were built overseas, AECL-RC made its technology available to foreign utilities and agencies. Recently the company has embarked on a new transfer program, commercial R and D for nuclear and non-nuclear customers. During the years of CANDU development, AECL-RC has acquired the skills and technology that are especially valuable to other countries embarking on their own nuclear programs. This report describes AECL-RC's thirty years' experience with the transfer of technology

  2. Corrosion by cooling gases in nuclear reactors; la corrosion par les gaz caloporteurs dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Darras, R. [Commissariat a l' energie atomique et aux energies alternatives - CEA, Centre de Saclay, Section d' etude de la corrosion par gaz et metaux liquides (France)

    1960-07-01

    This article begins with a review of the various materials which can be used and the cooling gases in which they may be heated, emphasis being placed on the importance of reaching temperatures as high as possible. This is followed by a few general remarks on the dry oxidation of metals and alloys, particularly with regard to diffusion phenomena and their various possible mechanisms, and also the methods of investigation employed. Finally, the behaviour of the chief nuclear materials heated in the various gases is studied successively. Materials used for fuel (metallic uranium, uranium oxide, carbides and silicides), canning materials (magnesium, aluminium, zirconium, beryllium, stainless and refractory steels), structural materials (ordinary or slightly alloyed steels), and finally moderators (graphite, beryllium oxide) are deal with in this way. This account is backed up both by the results obtained at the CEA and by work published outside or abroad up to the present day. In conclusion, every effort has been made to direct future research on the basis of the foregoing. Reprint of a paper published in Industries Atomiques - no. 9/10, 1959, p. 3-23 [French] Dans cet article, on passe tout d'abord en revue les divers materiaux utilisables et les gaz de refroidissement dans lesquels ils peuvent etre chauffes, en insistant sur l'interet d'atteindre des temperatures aussi elevees que possible. On rappelle ensuite quelques generalites sur l'oxydation seche des metaux et alliages, notamment en ce qui concerne les phenomenes de diffusion et leurs divers mecanismes possibles ainsi que les methodes d'etude. Enfin, le comportement des principaux materiaux nucleaires chauffes dans les divers gaz est etudie successivement. On traita ainsi des materiaux combustibles (uranium metallique, oxyde, carbures et siliciures d'uranium), des materiaux de gainage (magnesium, aluminium, zirconium, beryllium, aciers inoxydables et refractaires), des materiaux de structure (aciers ordinaires

  3. French research in the field of nuclear agronomy; Les recherches francaises en agronomie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Guerin De Montgareuil, P. [Commissariat a l' Energie Atomique, Cadarache (France). Centre d' Etudes Nucleaires

    1964-07-01

    , industrial firms, university laboratories scientific institutes. The role of the Commissariat a l'Energie Atomique is defined: on the one hand it supplies information and support, and on the other hand it takes charge of specifically nuclear aspects of the work. Its part in the field has recently found expression in the creation, within the Biology Department, of a Radio-agronomy Section; its objective are described,, as well as the, means placed att its disposal at the Centre d'etudes Nucleaires, Cadarache. (author) [French] On propose un bilan des travaux les plus significatifs effectues en France depuis la deuxieme conference internationale en matiere d'agronomie nucleaire et qui vont d'une recherche apparemment desinteressee a l'application la plus directe. Une telle differenciation recouvre de moins en moins, au fur et a mesure de l'evolution des programmes, la distinction qui est faite dans l'expose entre l'action biologique des rayonnements et les autres emplois des techniques nucleaires. C'est ainsi que les recherches do radiogenetique agricole sont poursuivies dans deux directions: d'un point de vue theorique et methodologique avec l'etude comparative de l'action des divers types de rayonnements, l'influence du debit de dose et de la temperature, l'action des agents mutagenes chimiques, la production de chimeres sous irradiation gamma; et d'autre part, sous un aspect pratique aboutissant a la creation de varietes nouvelles plus resistantes ou plus precoces (riz, mil, arachide). Les problemes de destruction des insectes (eradication) et de conservation des denrees sous irradiation se trouvent egalement abordes par des voies et avec des objectifs tres divers. A la demarche globale representee par une irradiation pure et simple (grains humides, pommes de terre...) sont parfois associees des etudes souvent originales, d'ordre biochimique ou microbiologique (par exemple: alteration de l

  4. French research in the field of nuclear agronomy; Les recherches francaises en agronomie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Guerin De Montgareuil, P [Commissariat a l' Energie Atomique, Cadarache (France). Centre d' Etudes Nucleaires

    1964-07-01

    , industrial firms, university laboratories scientific institutes. The role of the Commissariat a l'Energie Atomique is defined: on the one hand it supplies information and support, and on the other hand it takes charge of specifically nuclear aspects of the work. Its part in the field has recently found expression in the creation, within the Biology Department, of a Radio-agronomy Section; its objective are described,, as well as the, means placed att its disposal at the Centre d'etudes Nucleaires, Cadarache. (author) [French] On propose un bilan des travaux les plus significatifs effectues en France depuis la deuxieme conference internationale en matiere d'agronomie nucleaire et qui vont d'une recherche apparemment desinteressee a l'application la plus directe. Une telle differenciation recouvre de moins en moins, au fur et a mesure de l'evolution des programmes, la distinction qui est faite dans l'expose entre l'action biologique des rayonnements et les autres emplois des techniques nucleaires. C'est ainsi que les recherches do radiogenetique agricole sont poursuivies dans deux directions: d'un point de vue theorique et methodologique avec l'etude comparative de l'action des divers types de rayonnements, l'influence du debit de dose et de la temperature, l'action des agents mutagenes chimiques, la production de chimeres sous irradiation gamma; et d'autre part, sous un aspect pratique aboutissant a la creation de varietes nouvelles plus resistantes ou plus precoces (riz, mil, arachide). Les problemes de destruction des insectes (eradication) et de conservation des denrees sous irradiation se trouvent egalement abordes par des voies et avec des objectifs tres divers. A la demarche globale representee par une irradiation pure et simple (grains humides, pommes de terre...) sont parfois associees des etudes souvent originales, d'ordre biochimique ou microbiologique (par exemple: alteration de l'amidon, metabolisme glucidique des tubercules irradies, radioresistance des levures

  5. Impact of Nuclear Laboratory Personnel Credentials & Continuing Education on Nuclear Cardiology Laboratory Quality Operations.

    Science.gov (United States)

    Malhotra, Saurabh; Sobieraj, Diana M; Mann, April; Parker, Matthew W

    2017-12-22

    Background/Objectives: The specific credentials and continuing education (CME/CE) of nuclear cardiology laboratory medical and technical staff are important factors in the delivery of quality imaging services that have not been systematically evaluated. Methods: Nuclear cardiology accreditation application data from the Intersocietal Accreditation Commission (IAC) was used to characterize facilities performing myocardial perfusion imaging by setting, size, previous accreditation and credentials of the medical and technical staff. Credentials and CME/CE were compared against initial accreditation decisions (grant or delay) using multivariable logistic regression. Results: Complete data were available for 1913 nuclear cardiology laboratories from 2011-2014. Laboratories with initial positive accreditation decisions had a greater prevalence of Certification Board in Nuclear Cardiology (CBNC) certified medical directors and specialty credentialed technical directors. Certification and credentials of the medical and technical directors, respectively, staff CME/CE compliance, and assistance of a consultant with the application were positively associated with accreditation decisions. Conclusion: Nuclear cardiology laboratories directed by CBNC-certified physicians and NCT- or PET-credentialed technologists were less likely to receive delay decisions for MPI. CME/CE compliance of both the medical and technical directors was associated with accreditation decision. Medical and technical directors' years of experience were not associated with accreditation decision. Copyright © 2017 by the Society of Nuclear Medicine and Molecular Imaging, Inc.

  6. Nuclear magnetic resonance common laboratory, quadrennial report

    International Nuclear Information System (INIS)

    1994-01-01

    This quadrennial report of the nuclear magnetic resonance common laboratory gives an overview of the main activities. Among the different described activities, only one is interesting for the INIS database: it concerns the Solid NMR of cements used for radioactive wastes storage. In this case, the NMR is used to characterize the structure of the material and the composition, structure and kinetics of formation of the alteration layer which is formed at the surface of concrete during water leaching conditions. The NMR methodology is given. (O.M.)

  7. The dangers of irradiate uranium in nuclear reactors; Les dangers de l'uranium irradie dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Jammet, H; Joffre, H [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1955-07-01

    The danger of the uranium cans sur-activated by the use in the nuclear reactors is triple: - Irradiation from afar, during manipulations of the cans. - Contamination of air when decladding. - Contamination of air by fire of uranium in a reactor in function The first two dangers are usual and can be treated thanks to the rules of security in use in the atomic industry. The third has an accidental character and claimed for the use of special and exceptional rules, overflowing the industrial setting, to reach the surrounding populations. (authors) [French] Le danger des cartouches d'uranium suractive par utilisation dans les reacteurs nucleaires est triple: - Irradiation a distance, lors des manipulations des cartouches. - Contamination de l'air au moment de leur degainage. - Contamination de l'air par incendie d'uranium dans un reacteur en fonctionnement. Les deux premiers dangers sont habituels et peuvent etre traites grace aux regles de securite en usage dans l'industrie atomique. Le troisieme revet un caractere accidentel et reclame l'emploi de regles speciales et exceptionnelles, debordant le cadre industriel, pour atteindre celui des populations environnantes. (auteurs)

  8. Safety guide for protection in nuclear medicine laboratories

    International Nuclear Information System (INIS)

    1995-01-01

    The regulations that must be taken into account during constructing the nuclear medicine laboratories to meet the requirements of radiation protection and the specifications of equipment in the laboratory, quality control, radioactive monitoring, protective procedures, personnel qualifications are given

  9. Nuclear Physics Laboratory 1976 annual report. [Nuclear Physics Laboratory, Univ. of Washington

    Energy Technology Data Exchange (ETDEWEB)

    1976-06-01

    Laboratory activities for the period spring, 1975 to spring, 1976 are described. The emphasis of the work can be discerned from the chapter headings: accelerator development; ion source development; instrumentation, detectors, research techniques; computer and computing; atomic physics; nuclear astrophysics; fundamental symmetries in nuclei; nuclear structure; radiative capture measurements and calculations; scattering and reactions; reactions with polarized protons and deuterons; heavy-ion elastic and inelastic scattering; heavy-ion deeply inelastic and fusion reactions; heavy ion transfer and intermediate structure reactions; medium-energy physics; and energy studies. Research by users and visitors is also described; and laboratory personnel, degrees granted, and publications are listed. Those summaries having significant amounts of information are indexed individually. (RWR)

  10. French people and nuclear wastes; Les francais et les dechets nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    D' Iribarne, Ph [Centre National de la Recherche Scientifique (CNRS), 75 - Paris (France)

    2005-07-01

    On March 21, 2005, the French minister of industry gave to the author of this document, the mission to shade a sociological light on the radioactive wastes perception by French people. The objective of this study was to supply an additional information before the laying down in 2006 of the decisions about the management of high-level and long-lived radioactive wastes. This inquiry, carried out between April 2004 and March 2005, stresses on the knowledge and doubts of the questioned people, on the vision they have of radioactive wastes and of their hazards, and on their opinion about the actors in concern (experts, nuclear companies, government, anti-nuclear groups, public). The last two parts of the report consider the different ways of waste management under study today, and the differences between the opinion of people living close to the Bure site and the opinion of people living in other regions. (J.S.)

  11. Nuclear Forensics at Los Alamos National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Kinman, William Scott [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Steiner, Robert Ernest [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lamont, Stephen Philip [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-09-30

    Nuclear forensics assists in responding to any event where nuclear material is found outside of regulatory control; a response plan is presented and a nuclear forensics program is undergoing further development so that smugglers are sufficiently deterred.

  12. Nuclear forensics: a comprehensive model action plan for Nuclear Forensics Laboratory in India

    International Nuclear Information System (INIS)

    Deshmukh, A.V.; Nyati, S.; Fatangre, N.M.; Raghav, N.K.; Reddy, P.G.

    2013-01-01

    Nuclear forensic is an emerging and highly specialized discipline which deals with nuclear investigation and analysis of nuclear or radiological/radioactive materials. Nuclear Forensic analysis includes various methodology and analytical methods along with morphology, physical, chemical, elemental and isotopic analysis to characterize and develop nuclear database for the identification of unknown nuclear or radiological/radioactive material. The origin, source history, pathway and attribution of unknown radioactive/nuclear material is possible with certainty through Nuclear Forensics. Establishment of Nuclear Forensic Laboratory and development of expertise for nuclear investigation under one roof by developing the nuclear data base and laboratory network is need of the hour to ably address the problems of all the law enforcement and nuclear agencies. The present study provides insight in Nuclear Forensics and focuses on an urgent need for a comprehensive plan to set up Nuclear Forensic Laboratory across India. (author)

  13. Nuclear physics: large instruments and challenges; La physique nucleaire: les grands instruments et les defis

    Energy Technology Data Exchange (ETDEWEB)

    Harar, S. [CEA Centre d`Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Direction des Sciences de la Matiere

    1997-12-31

    Researches on nuclear physics and atomic nucleus can be divided into three periods of time at the CEA: from 1950 to 1970, the characteristics of atomic nucleus structure are measured and accelerators are used; in the early 70`s, heavy ion physics, with the Ganil accelerator, allows for the study of large perturbations in nuclei, while the meson physics study the nucleon interactions using the Saclay 700 MeV electron linear accelerator. In the early 90`s, the radioactive beams provided by the SPIRAL/Ganil device allows for the study of the nucleon internal structure, the quarks, and their effects while their deconfinement is studied by the means of the relativistic heavy ions provided by the LHC accelerator

  14. Nuclear medicine at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    Atkins, H.L.

    1976-01-01

    The Nuclear Medicine Program at the Brookhaven National Laboratory seeks to develop new materials and methods for the investigation of human physiology and disease processes. Some aspects of this research are related to basic research of how radiopharmaceuticals work. Other aspects are directed toward direct applications as diagnostic agents. It is likely that cyclotron-produced positron emitting nuclides will assume greater importance in the next few years. This can be attributed to the ability to label biologically important molecules with high specific activity without affecting biological activity, using 11 C, 13 N, and 15 O. Large quantities of these short-lived nuclides can be administered without excessive radiation dose and newer instrumentation will permit reconstructive axial tomography, providing truly quantitative display of distribution of radioactivity. The 122 Xe- 122 I generator has the potential for looking at rapid dynamic processes. Another generator, the 68 Ge- 68 Ga generator produces a positron emitter for the use of those far removed from cyclotrons. The possibilities for 68 Ga radiopharmaceuticals are as numerous as those for /sup 99m/Tc diagnostic agents

  15. Nuclear biological studies in France; Les etudes de biologie nucleaires en France

    Energy Technology Data Exchange (ETDEWEB)

    Coursaget, J. [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1961-07-01

    On the occasion of a colloquium on radiobiological research programmes, a number of documents dealing with French accomplishments and projects in this field were collected together. We felt that it would be useful to assemble these papers in one report; although they are brief and leave gaps to be filled in, they provide certain data, give an overall view of the situation, and can also suggest a rough plan for the general policy to adopt in the field of 'nuclear' biological research; i.e. research based on the nuclear tracer method or devoted to the action of ionising radiations. (author) [French] Un colloque sur les programmes de recherche en radiobiologie nous a donne l'occasion de reunir des documents sur les realisations et les projets francais dans ce domaine. Il nous a semble utile de reunir en un rapport l'ensemble de ces documents, qui, malgre leur brievete et malgre les lacunes qu'ils comportent, donnent un certain nombre d'informations, permettent une vue d'ensemble et peuvent dessiner aussi l'ebauche d'une politique coherente en matiere de recherches biologiques 'nucleaires', c'est-a-dire de recherches basees sur la methode des indicateurs nucleaires ou consacrees a l'action des rayonnements ionisants. (auteur)

  16. Nuclear biological studies in France; Les etudes de biologie nucleaires en France

    Energy Technology Data Exchange (ETDEWEB)

    Coursaget, J [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1961-07-01

    On the occasion of a colloquium on radiobiological research programmes, a number of documents dealing with French accomplishments and projects in this field were collected together. We felt that it would be useful to assemble these papers in one report; although they are brief and leave gaps to be filled in, they provide certain data, give an overall view of the situation, and can also suggest a rough plan for the general policy to adopt in the field of 'nuclear' biological research; i.e. research based on the nuclear tracer method or devoted to the action of ionising radiations. (author) [French] Un colloque sur les programmes de recherche en radiobiologie nous a donne l'occasion de reunir des documents sur les realisations et les projets francais dans ce domaine. Il nous a semble utile de reunir en un rapport l'ensemble de ces documents, qui, malgre leur brievete et malgre les lacunes qu'ils comportent, donnent un certain nombre d'informations, permettent une vue d'ensemble et peuvent dessiner aussi l'ebauche d'une politique coherente en matiere de recherches biologiques 'nucleaires', c'est-a-dire de recherches basees sur la methode des indicateurs nucleaires ou consacrees a l'action des rayonnements ionisants. (auteur)

  17. Associative memories in nuclear physics; Les memoires associatives en physique nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Blanca, E; Carriere, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1967-07-01

    Experiments in nuclear physics involve the use of large size 'memories'. After showing the difficulties arising from the use of such memories, the authors give the principles of the various programming methods which make it possible to operate the memories associatively thus benefiting from a reduction in size and better operational conditions. They attempt to estimate the shape and dimensions of an associative memory with cable connections which could be designed specially for nuclear research, contrary to those actually in service. (authors) [French] Les experiences de physique nucleaire necessitent l'emploi de 'memoires' de grandes dimensions. Apres avoir montre les inconvenients que presente l'utilisation de telles memoires, les auteurs exposent les principes des diverses methodes de programmation qui permettent d'assurer un fonctionnement des memoires sur le mode associatif donc une reduction de leurs dimensions et un meilleur usage. Ils tentent d'evaluer le format d'une memoire associative cablee qui, contrairement a celles qui existent actuellement, serait prevue specialement pour l'experimentation nucleaire. (auteurs)

  18. Non-nuclear energies; Les energies autres que le nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Nifenecker, H. [Laboratoire de Physique Subatomique et de Cosmologie, IN2P3-CNRS/UJF/INPG, 53 av. des Martyrs, 38026 Grenoble Cedex and Sauvons le Climat (http://www.sauvonsleclimat.org), Grenoble (France)

    2007-07-01

    The different meanings of the word 'energy', as understood by economists, are reviewed and explained. Present rates of consumption of fossil and nuclear fuels are given as well as corresponding reserves and resources. The time left before exhaustion of these reserves is calculated for different energy consumption scenarios. On finds that coal and nuclear only allow to reach the end of this century. Without specific dispositions, the predicted massive use of coal is not compatible with any admissible value of global heating. Thus, we discuss the clean coal techniques, including carbon dioxide capture and storage. One proceeds with the discussion of availability and feasibility of renewable energies, with special attention to electricity production. One distinguishes controllable renewable energies from those which are intermittent. Among the first we find hydroelectricity, biomass, and geothermal and among the second, wind and solar. At world level, hydroelectricity will, most probably, remain the main renewable contributor to electricity production. Photovoltaic is extremely promising for providing villages remote deprived from access to a centralized network. Biomass should be an important source of bio-fuels. Geothermal energy should be an interesting source of low temperature heat. Development of wind energy will be inhibited by the lack of cheap and massive electricity storage; its contribution should not exceed 10% of electricity production. Its present development is totally dependent upon massive public support. A large part of this paper follows chapters of the monograph 'L'energie de demain: technique, environnement, economie', EDP Sciences, 2005. (author)

  19. The Los Alamos National Laboratory Nuclear Vision Project

    International Nuclear Information System (INIS)

    Arthur, E.D.; Wagner, R.L. Jr.

    1996-01-01

    Los Alamos National Laboratory has initiated a project to examine possible futures associated with the global nuclear enterprise over the course of the next 50 years. All major components are included in this study--weapons, nonproliferation, nuclear power, nuclear materials, and institutional and public factors. To examine key issues, the project has been organized around three main activity areas--workshops, research and analyses, and development of linkages with other synergistic world efforts. This paper describes the effort--its current and planned activities--as well as provides discussion of project perspectives on nuclear weapons, nonproliferation, nuclear energy, and nuclear materials focus areas

  20. Build of virtual instrument laboratory related to nuclear species specialized

    International Nuclear Information System (INIS)

    Shan Jian; Zhao Guizhi; Zhao Xiuliang; Tang Lingzhi

    2009-01-01

    As rapid development of specialized related to nuclear science,the requirement of laboratory construct is analyzed in this article at first, One total conceive, One scheme deploy soft and hardware,three concrete characteristics targets and five different phases of put in practice of virtual instrument laboratory of specialized related to nuclear science are suggest in the paper,the concrete hardware structure and the headway of build of virtual instrument laboratory are described,and the first step effect is introduced.Lastly,the forward target and the further deliberateness that the virtual instrument laboratory construct are set forth in the thesis. (authors)

  1. Nuclear Physics Laboratory 1981 annual report

    International Nuclear Information System (INIS)

    1981-06-01

    Research progress is reported in the following areas: astrophysics and cosmology, nuclear tests of fundamental symmetries, parity mixing in the hydrogen atom, nuclear structure and reactions, radiative capture, medium energy physics, heavy ion reactions, research by outside users, accelerators and ion sources, final design and construction of the magnetic momentum filter, instrumentation and experimental techniques, and computers and computing. Publications are listed

  2. 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)

  3. Some developments and applications of LES of single phase turbulent flows for nuclear industry

    International Nuclear Information System (INIS)

    Frederic Ducros; Valerie Barthel; Ulrich Bieder; Alexandre Chatelain; Younes Benarafa; Olivier Cioni; Gauthier Fauchet; Philippe Emonot; Patrick Quemere; Bernard Menant; Nicolas Tauveron; Simone Vandroux; Christophe Calvin

    2005-01-01

    Full text of publication follows: The turbulence modelling is an important issue concerning the predictive capability of the CFD codes applied to nuclear reactor safety (NRS), in particular for single-phase flows. Common features of these unsteady high Reynolds number turbulent flows are various regimes (laminar, transitional, fully turbulent) developing in arbitrary complex geometries involving a large extend of standard flow configurations (attached and detached boundary layers, mixing layers, jets in cavity, in cross flows, jet impingement) eventually submitted to buoyancy forces, to dilatation effects and leading to mixing of constituents and temperatures. NRS issues are most of the time related to the eventual knowledge of parietal quantities such as temperature (mean and fluctuating), leading to consider the wall region as a crucial one and to deal with coupled problems. All these features can lead to consider different approaches for turbulence modelling: more or less standard 'Reynolds Average Navier-Stokes equations' closures, Large Eddy Simulations, both of them considered with or without wall functions, with or without large implicit time stepping etc. The development and industrialization of LES as a target of providing 'reference simulations' for NRS are parts of the Trio-U project, developed at CEA for several years [1]. First, the paper presents the current status of LES implementation and some insights on the R and D effort concerning the turbulence modelling. The R and D strategy will be introduced as a result of both the extra-nuclear community know-how on LES and several years of applications of LES for nuclear issues at CEA. It will be shown that LES can be considered as a good candidate to deal with the previous mentioned issues. A large emphasis will be devoted to the R and D on approximate wall conditions, including first the checking of the consistency of standard and advanced wall conditions with LES approach, second specific works dealing

  4. Nuclear astrophysics at Gran Sasso Laboratory: the LUNA experiment

    Science.gov (United States)

    Cavanna, Francesca

    2018-05-01

    LUNA is an experimental approach for the study of nuclear fusion reactions based on an underground accelerator laboratory. Aim of the experiment is the direct measurement of the cross section of nuclear reactions relevant for stellar and primordial nucleosynthesis. In the following the latest results and the future goals will be presented.

  5. Laboratory neutrons - a breakthrough in non-nuclear disciplines

    International Nuclear Information System (INIS)

    Jervis, R.E.

    1983-01-01

    The availability of laboratory neutrons at SLOWPOKE Nuclear reactor facility, has greatly facilitated interdisciplinary applied research there. Examples of the uses of the laboratory neutrons include those involved with environmental dispersal of inorganic pollutants, and those associated with public health investigations. (UK)

  6. Nuclear Physics Laboratory technical progress report

    International Nuclear Information System (INIS)

    1991-01-01

    This contract supports broadly based experimental work in intermediate energy nuclear physics. The program includes pion- nucleon studies at TRIUMF and LAMPF, inelastic pion scattering and charge exchange reactions at LAMPF, and nucleon charge exchange at LAMPF/NTOF. The first results of spin-transfer observables in the isovector (rvec p,rvec n) reaction are included in this report. Our data confirm the tentative result from (rvec p,rvec p) reactions that the nuclear isovector spin response shows neither longitudinal enhancement nor transverse quenching. Our program in quasifree scattering of high energy pions shows solid evidence of isoscalar enhancement of the nuclear nonspin response. We include several comparisons of the quasifree scattering of different probes. Results from our efforts in the design of accelerator RF cavities are also included in this report

  7. Laboratory portrait: the Saclay nuclear physics division

    International Nuclear Information System (INIS)

    Alamanos, N.; Auger, F.

    2005-01-01

    The research activities of the nuclear physics division (SPHN) of DAPNIA (Cea) take place within strong national and international collaborations. Its programs cover a broad range of topics in nuclear physics from low to high energies, they include the structure and dynamics of the nucleus, the structure of the nucleon, the search for phase transitions in nuclear matter, and contribution to the development of nuclear energy. Concerning the structure of the nucleus, SPHN is involved in the study of the structure of light exotic nuclei such as He 6-8 , C 10-11 , Ne 27 and in the study of shape coexistence in Kr isotopes. The experiments are performed at GANIL. SPHN is also involved in the study of the structure of Md 251 through experiments made in Finland. Near-barrier and sub-barrier fusion of light unstable nuclei and their respective stable isotopes with U 238 targets are studied in Louvain-la-Neuve (Belgium). Concerning nuclear phase transitions, the purpose of our activities is twofold: the study of the liquid-gas phase transition in nuclei at relatively low incident energies and the search for the quark-gluon plasma (QGP) at very high energies. We look for QGP signatures in 2 experiments: Phenix with the accelerator RHIC at Bnl and Alice at the LHC (CERN). Concerning the structure of the nucleon, SPHN is involved in 2 experimental programs both using electromagnetic probes, one to obtain information on the spin carried by the gluons in the proton (Compass at CERN) and the other to extract information on generalized parton distributions by means of deeply virtual Compton scattering (Clas at Jlab). Concerning nuclear energy, the activities are focused along 3 main lines: spallation studies, neutron cross-section measurements and application oriented modeling. (A.C.)

  8. ReNuAL: Renovation of the Nuclear Applications Laboratories

    International Nuclear Information System (INIS)

    Harman, Ruzanna

    2014-01-01

    The IAEA Department of Nuclear Sciences and Applications (NA) operates eight laboratories in Seibersdorf, near Vienna. Each of these laboratories performs unique functions that include supporting research and training for improving animal production and health, ensuring the effective and safe use of radiotherapy equipment, reinforcing food safety and developing hardier and higher-yielding food crops. They also contribute to protecting the global environment, enhancing countries’ capabilities in using nuclear instrumentation and analytical techniques, eliminating insect pests and managing soil and water sustainably. These are essential contributions to the IAEA’s mission of supporting the peaceful use of nuclear technologies to help meet global development challenges

  9. Nuclear Physics Laboratory 1980 annual report

    International Nuclear Information System (INIS)

    Adelberger, E.G.

    1980-09-01

    Research progress is reported in the following areas: astrophysics and cosmology, fundamental symmetries, nuclear structure and reactions, radiative capture, medium energy physics, heavy ion reactions, research by outside users, accelerators and ion sources, instrumentation and experimental techniques, and computers and computing. Publications are listed

  10. Nuclear Physics Laboratory 1979 annual report

    Energy Technology Data Exchange (ETDEWEB)

    Adelberger, E.G. (ed.)

    1979-07-01

    Research progress is reported in the following areas: astrophysics and cosmology, fundamental symmetries, nuclear structure, radiative capture, medium energy physics, heavy ion reactions, research by users and visitors, accelerator and ion source development, instrumentation and experimental techniques, and computers and computing. Publications are listed. (WHK)

  11. Nuclear Physics Laboratory 1980 annual report

    Energy Technology Data Exchange (ETDEWEB)

    Adelberger, E.G. (ed.)

    1980-09-01

    Research progress is reported in the following areas: astrophysics and cosmology, fundamental symmetries, nuclear structure and reactions, radiative capture, medium energy physics, heavy ion reactions, research by outside users, accelerators and ion sources, instrumentation and experimental techniques, and computers and computing. Publications are listed. (WHK)

  12. Microcomputers in a nuclear physics laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez Ortega, J; Guardiola, R

    1986-01-01

    The use of a small home computer as a measurement device in a Nuclear Physics Lab. An important aspect of our approach is that there is no hardware at all, and some simple and modular machine language programs are needed. In this form the system can work as a pulse counter, a multiscale device or a time-interval analyzer.

  13. Protection of personnel against atmospheric contamination by plutonium in the laboratory (1963); Protection du personnel contre la contamination atmospherique par le plutonium, dans les laboratoires (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Feliers, P; Pomarola, J; Risselin, A [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1963-07-01

    Various problems about measurement of atmospheric contamination by plutonium in laboratories are considered. In particular are studied sampling methods, continuous measurement for alarm, criteria used for fixation of the concentrations to be measured, sensitivity of apparatus and effects of natural atmospheric contamination. The means actually available for measurement of contamination and their limits of use are briefly analysed. (authors) [French] Les differents problemes a resoudre pour realiser un controle satisfaisant de la contamination atmospherique par le plutonium, dans les laboratoires, sont abordes. On etudie en particulier les differents modes d'echantillonnage, le controle continu en vue de l'alarme, les criteres qui servent a la fixation des concentrations a mesurer, la sensibilite a donner aux moyens de mesure, les difficultes provenant de la contamination atmospherique naturelle. Les moyens actuellement disponibles pour le controle de la contamination et leurs moyens limites d'emploi sont analyses sommairement. (auteurs)

  14. Nuclear electronics laboratory manual 1989 edition

    International Nuclear Information System (INIS)

    1989-10-01

    This manual is a joint product of several electronics experts who have been associated with IAEA activity in this field for many years. It is based on the experience of conducting twenty-three training courses on nuclear electronics. Compared with the first edition, published 1984, this edition contains many new experiments, mainly on the advanced technical level. The total number of experiments and special projects is 58. Tabs and figs

  15. Personal nuclear accident dosimetry at Sandia National Laboratories

    International Nuclear Information System (INIS)

    Ward, D.C.; Mohagheghi, A.H.; Burrows, R.

    1996-09-01

    DOE installations possessing sufficient quantities of fissile material to potentially constitute a critical mass, such that the excessive exposure of personnel to radiation from a nuclear accident is possible, are required to provide nuclear accident dosimetry services. This document describes the personal nuclear accident dosimeter (PNAD) used by SNL and prescribes methodologies to initially screen, and to process PNAD results. In addition, this report describes PNAD dosimetry results obtained during the Nuclear Accident Dosimeter Intercomparison Study (NAD23), held during 12-16 June 1995, at Los Alamos National Laboratories. Biases for reported neutron doses ranged from -6% to +36% with an average bias of +12%

  16. US-Russian laboratory-to-laboratory cooperation in nuclear materials protection, control, and accounting

    International Nuclear Information System (INIS)

    Mullen, M.; Augustson, R.; Horton, R.

    1995-01-01

    Under the guidance of the Department of Energy (DOE), six DOE laboratories have initiated a new program of cooperation with the Russian Federation's nuclear institutes. The purpose of the program is to accelerate progress toward a common goal shared by both the US and Russia--to reduce the risks of nuclear weapons proliferation, including such threats as theft, diversion, and unauthorized possession of nuclear materials, by strengthening systems of nuclear materials protection, control, and accounting. This new program is called the Laboratory-to-Laboratory Nuclear Materials Protection, Control, and Accounting (Lab-to-Lab MPC and A) Program. It is designed to complement other US-Russian MPC and A programs such as the government-to-government (Nunn-Lugar) programs. The Lab-to-Lab MPC and A program began in 1994 with pilot projects at two sites: Arzamas-16 and the Kurchitov Institute. This paper presents an overview of the Laboratory-to-Laboratory MPC and A Program. It describes the background and need for the program; the objectives and strategy; the participating US and Russian laboratories, institutes and enterprises; highlights of the technical work; and plans for the next several years

  17. Radiotracer laboratory for agricultural research at the Malaysian Nuclear Agency

    International Nuclear Information System (INIS)

    Nashriyah Mat; Misman Sumin; Maizatul Akmam Mhd Nasir

    2007-01-01

    Radiotracer Laboratory for agricultural research at the Malaysian Nuclear Agency was established since 1990. It accommodates three laboratories, three chemical temporary storage compartments plus one compartment for storage of pressurized gas. This facility is situated in ground floor of Block 44, Agrotechnology and Biosciences Division, Dengkil Complex. Currently it houses a liquid scintillation counter, sample oxidizer, gas liquid chromatography, high performance liquid chromatography and auxiliary equipments. A road map for this laboratory will be discussed in relation with present scenario i.e. R and D service, training and consultancy provided by this laboratory; and future requirements and direction. (Author)

  18. Nuclear Structure Committee annual report 1976-1977, nuclear structure grants and laboratory agreements

    International Nuclear Information System (INIS)

    1977-01-01

    The Annual Report for the period 1 August 1976 to 31 July 1977 of the Nuclear Structure Committee of the Nuclear Physics Board, under the (United Kingdom) Science Research Council, is presented. Details are given of nuclear structure grants and laboratory agreements. (U.K.)

  19. How the Nuclear Applications Laboratories Help in Strengthening Emergency Response

    International Nuclear Information System (INIS)

    2014-01-01

    Safety is one of the most important considerations when engaging in highly advanced scientific and technological activities. In this respect, utilizing the potential of nuclear technology for peaceful purposes also involves risks, and nuclear techniques themselves can be useful in strengthening emergency response measures related to the use of nuclear technology. In the case of a nuclear incident, the rapid measurement and subsequent monitoring of radiation levels are top priorities as they help to determine the degree of risk faced by emergency responders and the general public. Instruments for the remote measurement of radioactivity are particularly important when there are potential health risks associated with entering areas with elevated radiation levels. The Nuclear Science and Instrumentation Laboratory (NSIL) — one of the eight laboratories of the Department of Nuclear Sciences and Applications (NA) in Seibersdorf, Austria — focuses on developing a variety of specialized analytical and diagnostic instruments and methods, and transferring knowledge to IAEA Member States. These include instruments capable of carrying out remote measurements. This emergency response work carried out by the NA laboratories supports health and safety in Member States and supports the IAEA’s mandate to promote the safe and peaceful use of nuclear energy

  20. Nuclear Plant Analyzer development at the Idaho National Engineering Laboratory

    International Nuclear Information System (INIS)

    Laats, E.T.

    1986-10-01

    The Nuclear Plant Analyzer (NPA) is a state-of-the-art safety analysis and engineering tool being used to address key nuclear power plant safety issues. Under the sponsorship of the US Nuclear Regulatory Commission (NRC), the NPA has been developed to integrate the NRC's computerized reactor behavior simulation codes such as RELAP5, TRAC-BWR and TRAC-PWR, with well-developed computer color graphics programs and large repositories of reactor design and experimental data. An important feature of the NPA is the capability to allow an analyst to redirect a RELAP5 or TRAC calculation as it progresses through its simulated scenario. The analyst can have the same power plant control capabilities as the operator of an actual plant. The NPA resides on the dual Control Data Corporation Cyber 176 mainframe computers at the Idaho National Engineering Laboratory and Cray-1S computers at the Los Alamos National Laboratory (LANL) and Kirtland Air Force Weapons Laboratory (KAFWL)

  1. The Los Alamos Scientific Laboratory - An Isolated Nuclear Research Establishment

    Energy Technology Data Exchange (ETDEWEB)

    Bradbury, Norris E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Meade, Roger Allen [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-09-23

    Early in his twenty-five year career as the Director of the Los Alamos Scientific Laboratory, Norris Bradbury wrote at length about the atomic bomb and the many implications the bomb might have on the world. His themes were both technical and philosophical. In 1963, after nearly twenty years of leading the nation’s first nuclear weapons laboratory, Bradbury took the opportunity to broaden his writing. In a paper delivered to the International Atomic Energy Agency’s symposium on the “Criteria in the Selection of Sites for the Construction of Reactors and Nuclear Research Centers,” Bradbury took the opportunity to talk about the business of nuclear research and the human component of operating a scientific laboratory. This report is the transcript of his talk.

  2. Development and Manufacture of the Nuclear Laboratory Equipment

    International Nuclear Information System (INIS)

    Youm, Ki Un; Kim, J. K.; Kim, K. S.; Lee, I. B.; Youm, J. H.; Park, I. W.

    2008-12-01

    This report on development and manufacture of the nuclear laboratory equipment contains the work scope and contents performed for supporting the researches and the developments projects efficiently. And also, the records for the principal production design, the manufacture contents, the working drawings and the CNC program are described in it. Most of works are to support the successful and convenient performance of the R and D projects by development and manufacturing the requested laboratory equipment

  3. Development and Manufacture of the Nuclear Laboratory Equipment

    International Nuclear Information System (INIS)

    Youm, Ki Un; Moon, J. S.; Lee, I. B.; Youn, J. H.

    2010-12-01

    This report on development and manufacture of the nuclear laboratory equipment contains the work scope and contents performed for supporting the researches and the developments projects efficiently. And also, the records for the principal production design, the manufacture contents, the working drawings and the CNC program are described in it. Most of works are to support the successful and convenient performance of the R and D projects by development and manufacturing the requested laboratory equipment

  4. Development and Manufacture of the Nuclear laboratory equipment

    International Nuclear Information System (INIS)

    Youm, Ki Un; Lee, I. B.; Youm, J. H.

    2009-12-01

    This report on development and manufacture of the nuclear laboratory equipment contains the work scope and contents performed for supporting the researches and the developments projects efficiently. And also, the records for the principal production design, the manufacture contents, the working drawings and the CNC program are described in it. Most of works are to support the successful and convenient performance of the R and D projects by development and manufacturing the requested laboratory equipment

  5. New horizons for nuclear and radioanalytical chemistry laboratories

    International Nuclear Information System (INIS)

    Bode, P.

    2005-01-01

    Nuclear and radiochemistry are reported to suffer from a worldwide depression in support in the academic curriculum. The visibility of nuclear research groups is weak in general as can be illustrated by the low citation impact factors of the nuclear science related journals. Moreover, the use of nuclear techniques over other techniques is often insufficiently justified. Although in many countries a shortage in radiochemists is forecasted to occur by the end of this decade -and ample jobs becoming available-, students in chemistry and physics seem to prefer a career in contemporary sciences such as biotechnology, nanotechnology and genomics. Much of the research in these sciences is related to organic compounds and biomolecules or deals with elements that seemingly have little or no opportunities to be studied using radionuclides and (nuclear) radiation. Laboratories operating nuclear analytical techniques therefore need to use their creativity finding ways for participation in the scientific areas that are booming at the beginning of the 21st century. It requires an open mind on the strengths and weaknesses of existing techniques, and a departure from traditional views on measurement, analysis and even sources for activation. The unique features of using radiotracers and activatable tracers need again to be explored. Some radiochemistry laboratories at large (national) research centers have already converted their traditional technique-oriented research into more problem-oriented research, combining nuclear and complimentary non-nuclear techniques. Smaller laboratories have fewer opportunities for such holistic approaches but there are still a variety of nuclear and radiochemical techniques that fruitfully can be applied in these sciences and which also may turn attention towards the potentials of nuclear research reactor facilities, (nuclear) radiation and radionuclides, contributing to the sustainability of nuclear analytical groups. Advances in radiation

  6. Bringing atomic and nuclear physics laboratory data into the classroom

    International Nuclear Information System (INIS)

    Norman, Eric B.; Larimer, Ruth-Mary; Rech, Gregory; Lee, Jeffrey; Vue, Chue; Leubane, Tholoana; Zamvil, Kenneth; Guthrie, Laura

    2003-01-01

    To illustrate a number of basic concepts in atomic and nuclear physics, we have developed three websites where students can analyze data from modern laboratories. By working through the on-line procedures, students will become acquainted with characteristic x-ray spectra, the concept of half-life, x-ray fluorescence, and neutron activation analysis

  7. Nuclear fuel cycle safety research at Sandia Laboratories

    International Nuclear Information System (INIS)

    Ericson, D.M. Jr.

    1978-11-01

    This paper provides a brief introduction to Sandia Laboratories and an overview of Nuclear Regulatory Commission sponsored safety research with particular emphasis on light water reactor related activities. Several experimental and analytical programs are highlighted and the range of activities of a typical staff member illustrated

  8. Universities and national laboratory roles in nuclear engineering

    International Nuclear Information System (INIS)

    Sackett, J.I.

    1991-01-01

    Nuclear Engineering Education is being significantly challenged in the United States. The decline in enrollment generally and the reduction of the number of nuclear engineering departments has been well documented. These declines parallel a lack of new construction for nuclear power plants and a decline in research and development to support new plant design. Precisely at a time when innovation is is needed to deal with many issues facing nuclear power, the number of qualified people to do so is being reduced. It is important that the University and National Laboratory Communities cooperate to address these issues. The Universities must increasingly identify challenges facing nuclear power that demand innovative solutions and pursue them. To be drawn into the technology the best students must see a future, a need and identify challenges that they can meet. The University community can provide that vision with help from the National Laboratories. It has been a major goal within the reactor development program at Argonne National Laboratory to establish the kind of program that can help accomplish this

  9. University of Washington, Nuclear Physics Laboratory annual report, 1995

    International Nuclear Information System (INIS)

    1995-04-01

    The Nuclear Physics Laboratory of the University of Washington supports a broad program of experimental physics research. The current program includes in-house research using the local tandem Van de Graff and superconducting linac accelerators and non-accelerator research in double beta decay and gravitation as well as user-mode research at large accelerator and reactor facilities around the world. This book is divided into the following areas: nuclear astrophysics; neutrino physics; nucleus-nucleus reactions; fundamental symmetries and weak interactions; accelerator mass spectrometry; atomic and molecular clusters; ultra-relativistic heavy ion collisions; external users; electronics, computing, and detector infrastructure; Van de Graff, superconducting booster and ion sources; nuclear physics laboratory personnel; degrees granted for 1994--1995; and list of publications from 1994--1995

  10. Summer school in nuclear and radiochemistry at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    Kolsky, K.L.

    2005-01-01

    The U.S. Department of Energy supports 24 fellowships for students to attend six-week programs at either San Jose State University in California, or Brookhaven National Laboratory (BNL) in New York. The American Chemical Society through the Division of Nuclear Science and Technology operates both schools. The twelve students at the BNL program are enrolled in the State University of New York at Stony Brook (SUNYSB) and receive 3 college credits for the lecture course (CHE-361) and 3 additional credits for the laboratory course (CHE-362). In addition to lectures and laboratories, students tour various nuclear facilities offsite, at BNL, and at SUNYSB. Opportunities are given the students to interact with faculty and scientists within the profession through the Guest Lecture Program. Further details are discussed along with results of student surveys for the years 1999 through 2002. (author)

  11. On the use of (U)RANS and LES approaches for turbulent incompressible single phase flows in nuclear engineering applications

    Energy Technology Data Exchange (ETDEWEB)

    Benhamadouche, Sofiane, E-mail: sofiane.benhamadouche@edf.fr

    2017-02-15

    Highlights: • The paper deals with the use of (U)RANS and LES in nuclear engineering applications. • It gives some ideas and guidelines to run high quality computations. • Some perspectives are drawn concerning the development of (U)RANS and LES approaches in the future. - Abstract: The present paper gives some ideas and guidelines in order to run high quality (U)RANS or LES computations. The paper starts with (U)RANS approaches, advocating the use of Reynolds Stress Models for complex flows and recommending further work on modeling of turbulent heat fluxes, which remains today too basic in industry. The superiority of wall-resolved models vs. wall-modeled in RANS is recalled and the use of adaptive wall treatment is suggested. The concept of Unsteady RANS is finally questioned. Then, important issues around LES are raised. The mesh refinement criteria are recalled for wall-resolved LES and the use of wall models addressed. The production of DNS and wall-resolved LES calculations for flow understanding and RANS validation is encouraged.

  12. Nuclear structure research at the Triangle Universities Nuclear Laboratory

    International Nuclear Information System (INIS)

    Mitchell, G.E.

    1992-01-01

    Studies of fundamental symmetries by the TRIPLE collaboration using the unique capabilities at LAMTF have found unexpected systematics in the parity-violating amplitudes for epithermal-neutron scattering. Tests to lower the present limits on time-reversal-invariance violation in the strong interaction are being made at in experiments on the scattering of polarized fast neutrons from aligned holmium targets. Studies of few-nucleon systems have received increasing emphasis over the past year, involving a broad program for testing the low- to medium-energy internucleon interactions, from the tensor component in n-p scattering and the n-n scattering lengths, through three-nucleon systems and the alpha particle, on up to 8 Be. Of particular interest are three-nucleon systems, both in elastic scattering and in three-body breakup. Beam requirements range from production of intense and highly-polarized neutron beams to tensor-polarized beams for measurements at both very low energies (25--80 keV) and at tandem energies for definitive measurements of D-state components of the triton, 3 He, and 4 He obtained from transfer reactions. The program in nuclear astrophysics expanded during 1991--1992. Several facets of the nuclear many-body problem and of excitation mechanisms of the nucleus are being elucidated, including measurements and analyses to elucidate the neutron--nucleus elastic-scattering interaction over a wide range of nuclei and energies. Several projects involved developments in electronuclear physics, instrumentation, rf-transition units, and low-temperature bolometric particle detectors

  13. Laboratory instrumentation modernization at the WPI Nuclear Reactor Facility

    International Nuclear Information System (INIS)

    1995-01-01

    With partial funding from the Department of Energy (DOE) University Reactor Instrumentation Program several laboratory instruments utilized by students and researchers at the WPI Nuclear Reactor Facility have been upgraded or replaced. Designed and built by General Electric in 1959, the open pool nuclear training reactor at WPI was one of the first such facilities in the nation located on a university campus. Devoted to undergraduate use, the reactor and its related facilities have been since used to train two generations of nuclear engineers and scientists for the nuclear industry. The low power output of the reactor and an ergonomic facility design make it an ideal tool for undergraduate nuclear engineering education and other training. The reactor, its control system, and the associate laboratory equipment are all located in the same room. Over the years, several important milestones have taken place at the WPI reactor. In 1969, the reactor power level was upgraded from 1 kW to 10 kW. The reactor's Nuclear Regulatory Commission operating license was renewed for 20 years in 1983. In 1988, under DOE Grant No. DE-FG07-86ER75271, the reactor was converted to low-enriched uranium fuel. In 1992, again with partial funding from DOE (Grant No. DE-FG02-90ER12982), the original control console was replaced

  14. Damage caused to houses and equipment by underground nuclear explosions; Degats dus aux explosions nucleaires souterraines sur les habitations et les equipements

    Energy Technology Data Exchange (ETDEWEB)

    Delort, F; Guerrini, C [Commissariat a l' Energie Atomique, Bruyeres-le-Chatel (France). Centre d' Etudes

    1969-07-01

    A description is given of the damaged caused to various structures, buildings, houses, mechanical equipment and electrical equipment by underground nuclear explosions in granite. For each type of equipment or building are given the limiting distances for a given degree of damage. These distances have been related to a parameter characterizing the movement of the medium; it is thus possible to generalize the results obtained in granite, for different media. The problem of estimating the damage caused at a greater distance from the explosion is considered. (authors) [French] Les degats sur diverses structures, constructions, habitations, equipements mecaniques et materiels electriques provoques par des explosions nucleaires souterraines dans le granite sont decrits. On a indique pour chaque type de materiel ou de construction, les distances limites correspondant a un degre de gravite de dommage observe. Ces distances ont ete reliees a un parametre caracterisant le mouvement du milieu, permettant ainsi de generaliser les resultats obtenus dans le granite, a differents milieux. Le probleme de la prevision des degats en zone lointaine a ete aborde. (auteurs)

  15. Annual report of Laboratory of Nuclear Studies, Osaka University, 1980

    International Nuclear Information System (INIS)

    1981-01-01

    This is the progress report of the research activities in the Laboratory of Nuclear Studies during the period from April, 1980, to March, 1981. The activities were carried out by the OULNS staffs and also by outsiders at the OULNS. In this period, the X-ray astrophysics group, the radiation physics group and the high energy physics group joined the OULNS. The main accelerators in the OULNS are a 110 cm variable energy cyclotron and a 4.7 MeV Van de Graaff machine. The detailed experimental studies on inbeam e-gamma spectroscopy and beta-decay were carried out at two accelerator laboratories. The radiochemistry facility and a mass spectrometer were fully used. The research activities extended to high energy physics by utilizing national facilities, such as a 230 cm cyclotron in the Research Center for Nuclear Physics and a proton synchrotron in the National Laboratory for High Energy Physics. The theoretical studies on elementary particles and nuclear physics were carried out also. It is important that the facilities in the OULNS were used by the outsiders in Osaka University, such as solid state physics group and particle-induced X-ray group. The activities of the divisions of cyclotron, Van de Graaff, high energy physics, accelerator development and nuclear instrumentation, mass spectroscopy, radioisotope, solid state and theoretical physics are reported. (Kako, I.)

  16. Presentation of the Nuclear Material Metrology Laboratory (LAMMAN)

    International Nuclear Information System (INIS)

    Arpigny, S.; Biscarrat, C.; Ruas, A.; Viallesoubranne, C.; Hanssens, A.; Roche, C.

    2008-01-01

    The EQRAIN Uranium or Plutonium programmes (Evaluation of the Quality of Analysis Results in the Nuclear Industry) have led to the creation of round-robins, which require reference solutions of uranyl nitrate or of plutonium nitrate to be made available. The samples are fabricated and packaged, and their benchmark values determined, by the Nuclear Material Metrology Laboratory in the Atalante facility. All the operations are carried out by highly precise weighing, including correction for air buoyancy. In order to guarantee the preservation of reference samples, a laser-sealing apparatus is used to condition the final solutions in ampoules. Random tests to check the concentration of uranium or plutonium are carried out on a certain number of ampoules after the sealing step. The analysis are performed on a photo-gravimetric analysis line (in glove box for Pu) based on the titanium potentiometric analysis method. The ampoules are then packaged and delivered to the participating laboratories. The French nuclear laboratories participating in the EQRAIN programs belong to the Cea and to the AREVA Group, with activities covering the entire fuel cycle. They have been joined by new participants from European, Japanese and South American laboratories

  17. Presentation of the Nuclear Material Metrology Laboratory (LAMMAN)

    Energy Technology Data Exchange (ETDEWEB)

    Arpigny, S.; Biscarrat, C.; Ruas, A.; Viallesoubranne, C. [CEA/DEN/DRCP/SE2A/LAMM, Marcoule, BP 17171, 30207 Bagnols sur Ceze (France); Hanssens, A.; Roche, C. [CEA/DEN/DRCP/CETAMA Marcoule, BP 17171, 30207 Bagnols sur Ceze (France)

    2008-07-01

    The EQRAIN Uranium or Plutonium programmes (Evaluation of the Quality of Analysis Results in the Nuclear Industry) have led to the creation of round-robins, which require reference solutions of uranyl nitrate or of plutonium nitrate to be made available. The samples are fabricated and packaged, and their benchmark values determined, by the Nuclear Material Metrology Laboratory in the Atalante facility. All the operations are carried out by highly precise weighing, including correction for air buoyancy. In order to guarantee the preservation of reference samples, a laser-sealing apparatus is used to condition the final solutions in ampoules. Random tests to check the concentration of uranium or plutonium are carried out on a certain number of ampoules after the sealing step. The analysis are performed on a photo-gravimetric analysis line (in glove box for Pu) based on the titanium potentiometric analysis method. The ampoules are then packaged and delivered to the participating laboratories. The French nuclear laboratories participating in the EQRAIN programs belong to the Cea and to the AREVA Group, with activities covering the entire fuel cycle. They have been joined by new participants from European, Japanese and South American laboratories.

  18. MIT nuclear reactor laboratory high school teaching program

    International Nuclear Information System (INIS)

    Olmez, I.

    1991-01-01

    For the last 6 years, the Massachusetts Institute of Technology (MIT) Nuclear Reactor Laboratory's academic and scientific staff a have been conducting evening seminars for precollege science teachers, parents, and high school students from the New England area. These seminars, as outlined in this paper, are intended to give general information on nuclear technologies with specific emphasis on radiation physics, nuclear medicine, nuclear chemistry, and ongoing research activities at the MIT research reactor. The ultimate goal is to create interest or build on the already existing interest in science and technology by, for example, special student projects. Several small projects have already been completed ranging from environmental research to biological reactions with direct student involvement. Another outcome of these seminars was the change in attitudes of science teachers toward nuclear technology. Numerous letters have been received from the teachers and parents stating their previous lack of knowledge on the beneficial aspects of nuclear technologies and the subsequent inclusion of programs in their curriculum for educating students so that they may also develop a more positive attitude toward nuclear power

  19. Quality manual for Laboratories of the Nuclear Materials Characterization Division

    International Nuclear Information System (INIS)

    Sabato, S.F.

    1991-05-01

    This publication presents the first Quality Manual for the Laboratories at the Nuclear Materials Characterization Division. The Manual describes the laboratories, its organization structure, fields of activities, personnel records, equipments, maintenance and calibration. The main aspects concerning quality assurance in the analysis were discussed. The whole system of receiving, identifying and processing analysis of the samples is shown. Since there are many information to be contained in several subjects of the Quality Manual, there were produced separate documents that are cross referenced in the manual. (author)

  20. Decommissioning three nuclear reactors at Los Alamos National Laboratory

    International Nuclear Information System (INIS)

    Montoya, G.M.; Salazar, M.

    1992-01-01

    Three nuclear reactors, including the historic water boiler reactor, were decommissioned at Los Alamos National Laboratory (LANL). The decommissioning of the facilities involved removing the reactors and their associated components. Planning for the decommissioning operation included characterizing the facilities, estimating the costs of decommissioning operations, preparing environmental documentation, establishing systems to track costs and work progress, and preplanning to correct health and safety concerns in each facility

  1. Nuclear Physics Laboratory, University of Washington annual report

    International Nuclear Information System (INIS)

    1998-04-01

    The Nuclear Physics Laboratory at the University of Washington in Seattle pursues a broad program of nuclear physics. These activities are conducted locally and at remote sites. The current programs include in-house research using the local tandem Van de Graaff and superconducting linac accelerators and non-accelerator research in solar neutrino physics at the Sudbury Neutrino Observatory in Canada and at SAGE in Russia, and gravitation as well as user-mode research at large accelerators and reactor facilities around the world. Summaries of the individual research projects are included. Areas of research covered are: fundamental symmetries, weak interactions and nuclear astrophysics; neutrino physics; nucleus-nucleus reactions; ultra-relativistic heavy ions; and atomic and molecular clusters

  2. Bulletin of the Research Laboratory for Nuclear Reactors

    International Nuclear Information System (INIS)

    Aritomi, Masanori

    2008-01-01

    The bulletin consists of two parts. The first part includes General Research Report. The Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology has three engineering divisions such as Energy Engineering, Mass Transmutation Engineering, and System and Safety Engineering. In this part, 17 reports of Energy Engineering division, 8 reports of Mass transmutation Engineering division, 11 reports of System and Safety Engineering division are described as their activities. In addition, 3 reports of Cooperative Researches are also summarized. The second part is Special Issue about COE-INES RESEARCH REPORT 2007. In this part, 3 reports of Innovative Reactor Group, 2 reports of Innovative Nuclear Energy Utilization System Group, 3 reports of Innovative Transmutation/Separation Group, 2 reports of Relationship between Nuclear and Society Group, 1 report of RA Students in the COE-INES Captainship Educational Program are described as results to their researches. (J.P.N.)

  3. Nuclear energy related capabilities at Sandia National Laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Pickering, Susan Y. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2014-02-01

    Sandia National Laboratories' technology solutions are depended on to solve national and global threats to peace and freedom. Through science and technology, people, infrastructure, and partnerships, part of Sandia's mission is to meet the national needs in the areas of energy, climate and infrastructure security. Within this mission to ensure clean, abundant, and affordable energy and water is the Nuclear Energy and Fuel Cycle Programs. The Nuclear Energy and Fuel Cycle Programs have a broad range of capabilities, with both physical facilities and intellectual expertise. These resources are brought to bear upon the key scientific and engineering challenges facing the nation and can be made available to address the research needs of others. Sandia can support the safe, secure, reliable, and sustainable use of nuclear power worldwide by incorporating state-of-the-art technologies in safety, security, nonproliferation, transportation, modeling, repository science, and system demonstrations.

  4. Development of a new virtual nuclear reactor laboratory

    International Nuclear Information System (INIS)

    Ahmad Abrishami; Ali Pazirandeh

    2009-01-01

    Full text: Nowadays the education industry benefits from computer programs and software in various ways as well as many other industries. Here the e-learning technology uses some forms of software platform to present its contents. Virtual laboratories are superior tools in this technology. A virtual laboratory is interactive graphical user interface software that is based on known scientific laws of its virtual elements, which responses to user acts as desired in the real case. There are some known commercial and non-commercial ones. There are also some simulation software in the field of nuclear industry that has some uses in operator learning and some other applications such as analyzing the effects of human mistakes on plant safety. In this paper we discuss more about the ways to develop a virtual nuclear reactor laboratory and propose our first release of such tool. Our target reactor is Tehran Research Reactor (TRR), which is a pool type reactor. We used WIMS and COSTANZA to develop the simulator kernel of virtual laboratory. (Author)

  5. Felsenkeller shallow-underground accelerator laboratory for nuclear astrophysics

    Science.gov (United States)

    Bemmerer, D.; Cowan, T. E.; Gohl, S.; Ilgner, C.; Junghans, A. R.; Reinhardt, T. P.; Rimarzig, B.; Reinicke, S.; Röder, M.; Schmidt, K.; Schwengner, R.; Stöckel, K.; Szücs, T.; Takács, M.; Wagner, A.; Wagner, L.; Zuber, K.

    2015-05-01

    Favored by the low background in underground laboratories, low-background accelerator-based experiments are an important tool to study nuclear reactions involving stable charged particles. This technique has been used for many years with great success at the 0.4 MV LUNA accelerator in the Gran Sasso laboratory in Italy, proteced from cosmic rays by 1400 m of rock. However, the nuclear reactions of helium and carbon burning and the neutron source reactions for the astrophysical s-process require higher beam energies than those available at LUNA. Also the study of solar fusion reactions necessitates new data at higher energies. As a result, in the present NuPECC long range plan for nuclear physics in Europe, the installation of one or more higher-energy underground accelerators is strongly recommended. An intercomparison exercise has been carried out using the same HPGe detector in a typical nuclear astrophysics setup at several sites, including the Dresden Felsenkeller underground laboratory. It was found that its rock overburden of 45m rock, together with an active veto against the remaining muon flux, reduces the background to a level that is similar to the deep underground scenario. Based on this finding, a used 5 MV pelletron tandem with 250 μA upcharge current and external sputter ion source has been obtained and transported to Dresden. Work on an additional radio-frequency ion source on the high voltage terminal is underway. The project is now fully funded. The installation of the accelerator in the Felsenkeller is expected for the near future. The status of the project and the planned access possibilities for external users will be reported.

  6. The laboratories of geological studies; Les laboratoires d`etudes geologiques

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-01-01

    This educational document comprises 4 booklets in a folder devoted to the presentation of the ANDRA`s activities in geological research laboratories. The first booklet gives a presentation of the missions of the ANDRA (the French agency for the management of radioactive wastes) in the management of long life radioactive wastes. The second booklet describes the approach of waste disposal facilities implantation. The third booklet gives a brief presentation of the scientific program concerning the underground geologic laboratories. The last booklet is a compilation of questions and answers about long-life radioactive wastes, the research and works carried out in geologic laboratories, the public information and the local socio-economic impact, and the storage of radioactive wastes in deep geological formations. (J.S.)

  7. Decommissioning of fuel PIE caves at Berkeley Nuclear Laboratories

    International Nuclear Information System (INIS)

    Brant, A.W.

    1990-01-01

    This paper describes the first major contract awarded to private industry to carry out decommissioning of a facility with significant radiation levels. The work required operatives to work in pressurised suits, entry times were significantly affected by sources of radiation in the Caves, being as low as thirty minutes per day initially. The Caves at Berkeley Nuclear Laboratories carry out post irradiation examination of fuel elements support units and reactor core components from CEGB power stations. The decommissioning work is part of an overall refurbishment of the facility to allow the receipt of AGR Fuel Stringer Component direct from power stations. The paper describes the decommissioning and decontamination of the facility from the remote removal and clean up work carried out by the client to the hands-on work. It includes reference to entry times, work patterns, interfaces with the client and the operations of the laboratory. Details of a specially adapted size reduction method are given. (Author)

  8. The dynamic analysis facility at the Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Argue, D.S.; Howatt, W.T.

    1979-10-01

    The Dynamic Analysis Facility at the Chalk River Nuclear Laboratories (CRNL) of Atomic Energy of Canada Limited (AECL) comprises a Hybrid Computer, consisting of two Applied Dynamic International AD/FIVE analog computers and a Digital Equipment Corporation (DEC) PDP-11/55 digital computer, and a Program Development System based on a DEC PDP-11/45 digital computer. This report describes the functions of the various hardware components of the Dynamic Analysis Facility and the interactions between them. A brief description of the software available to the user is also given. (auth)

  9. Some particular aspects of control in nuclear power reactors; Quelques aspects particuliers du controle dans les piles atomiques de puissance

    Energy Technology Data Exchange (ETDEWEB)

    Furet, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires; Pupponi, J [Electricite de France (EDF), 75 - Paris (France)

    1964-07-01

    There are still many problems in the field of measurement and control of neutron flux. The present studies in connexion with high flux reactors contribute to the solution of these problems which concern specialists in reactor control. The present state of this investigation and the results of different studies carried out in France by the C A and the EDF are pointed out: A - In the nuclear instrumentation field, work is at present devoted to the technologies used to develop detectors and cables, which have to work at high temperature and in a high {gamma} background; fast electronic techniques are applied to fission counters to measure low neutron fluxes in a high {gamma} background (10 Rh). B - In the control and safety field, there is a real need for studies on the behaviour of reactors in the subcritical state. This increases the margin of security during restarts when poison effects must be overcome The perturbations due to control rod movements necessitate a new organisation of power level safety and control assemblies, in connexion with thermal or activation measurements. Two methods of fast start-up are described. They are related to the fission rate measurement as a function of time. This is done either continuously by a constant and high reactivity change, or step by step. The application of automatic techniques to detector motion seems to give the answer to control and safety in normal start-up. C - The scope of these studies covers the methods used for the control of E.D.F. 3, which are described. (authors) [French] La mesure et le controle du flux neutronique dans les piles de puissance posent encore de nombreux problemes. Les etudes actuellement entreprises dans le domaine des piles a haut flux, doivent apporter une contribution importante a la solution de ces problemes qui interessent les specialistes du controle des piles de puissance. On analyse l'etat actuel de ces etudes et on donne les resultats des differents travaux effectues en France, dans

  10. Nuclear physics and heavy element research at Lawrence Livermore National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Stoyer, Mark A; Ahle, L E; Becker, J A; Bernshein, L A; Bleuel, D L; Burke, J T; Dashdorj, D; Henderson, R A; Hurst, A M; Kenneally, Jacqueline M; Lesher, S R; Moody, K J; Nelson, S L; Norman, E B; Pedretti, M; Scielzo, N D; Shaughnessy, D A; Sheets, S A; Stoeffl, W; Stoyer, N J [Lawrence Livermore National Laboratory, University of California, Livermore (United States)

    2009-12-31

    This paper highlights some of the current basic nuclear physics research at Lawrence Livermore National Laboratory (LLNL). The work at LLNL concentrates on investigating nuclei at the extremes. The Experimental Nuclear Physics Group performs research to improve our understanding of nuclei, nuclear reactions, nuclear decay processes and nuclear astrophysics; an expertise utilized for important laboratory national security programs and for world-class peer-reviewed basic research.

  11. Contribution to the study of nuclear resonance in magnetic media (1963); Contribution a l'etude de la resonance nucleaire dans les milieux magnetique (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Hartmann-Boutron, F [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1963-06-15

    An attempt is made to interpret the results of nuclear magnetic resonance experiments made by various workers on ferro and ferrimagnetic compounds of the iron group. The problems encountered are the following: effects of the dipolar fields and the hyperfine structure anisotropy; signal intensity; frequency pulling due to the Suhl-Nakamura interaction between nuclear spins ; nuclear relaxation and ferrimagnetic resonance in single domain samples of impure YIG; nuclear relaxation in the Bloch walls of insulators. The results of our calculations are generally in good agreement with experiment. (author) [French] On se propose d'interpreter les resultats d'experiences de resonance magnetique nucleaire fates par divers auteurs sur des composes ferro et ferrimagnetiques du groupe du fer. Les problemes abordes sont les suivants: effets des champs dipolaires et de l'anisotropie de structure hyperfine; intensite des signaux; deplacement de frequence du a l'interaction de Suhl-Nakamura entre spins nucleaires; relaxation nucleaire et resonance ferrimagnetique dans les echantillons monodomaines de grenat de fer et d'yttrium impur; relaxation nucleaire dans les parois de Bloch des isolants. Les resultats des calculs sont generalement en bon accord avec l'experience. (auteur)

  12. Contribution to the study of nuclear resonance in magnetic media (1963); Contribution a l'etude de la resonance nucleaire dans les milieux magnetique (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Hartmann-Boutron, F. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1963-06-15

    An attempt is made to interpret the results of nuclear magnetic resonance experiments made by various workers on ferro and ferrimagnetic compounds of the iron group. The problems encountered are the following: effects of the dipolar fields and the hyperfine structure anisotropy; signal intensity; frequency pulling due to the Suhl-Nakamura interaction between nuclear spins ; nuclear relaxation and ferrimagnetic resonance in single domain samples of impure YIG; nuclear relaxation in the Bloch walls of insulators. The results of our calculations are generally in good agreement with experiment. (author) [French] On se propose d'interpreter les resultats d'experiences de resonance magnetique nucleaire fates par divers auteurs sur des composes ferro et ferrimagnetiques du groupe du fer. Les problemes abordes sont les suivants: effets des champs dipolaires et de l'anisotropie de structure hyperfine; intensite des signaux; deplacement de frequence du a l'interaction de Suhl-Nakamura entre spins nucleaires; relaxation nucleaire et resonance ferrimagnetique dans les echantillons monodomaines de grenat de fer et d'yttrium impur; relaxation nucleaire dans les parois de Bloch des isolants. Les resultats des calculs sont generalement en bon accord avec l'experience. (auteur)

  13. The nuclear power stations of the French atomic energy programme (1960); Les centrales nucleaires de puissance du programme francais (1960)

    Energy Technology Data Exchange (ETDEWEB)

    Leduc, C [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires; Roux, J P [Electricite de France (EDF), 75 - Paris (France)

    1960-07-01

    After recalling the entry of nuclear energy into energy production in France, the paper emphasizes the evolution of techniques applied in the designing of French nuclear power plants and describes the means employed for reducing costs per kWh of EDF2 and EDF3 compared with EDF1: the electric power per ton of uranium varies from 493 kW/t for EDF1 to 970 kW/t for EDF3. For this purpose the thermal power and electric power of units are changed respectively from 290 MWt for EDF1 to 1200 or 1600 MWt for EDF3 and from 28 to 250 MW. The results are obtained by an improvement in neutronic characteristics, developments in nuclear fuel technology, and simplification of the system of charging the reactor, whose means of maintenance are increased; the EDF2 heat-exchangers have been so designed as to increase the unit power of the elements, which will attain 9 MWt, as against 3 for EDF1. For EDF3 an advance project forecasts a thermodynamic layout with only one pressure stage. The paper ends with a description of the burst-slug detection systems, and an appendix gives a detailed comparative table of EDF1, EDF2 and EDF3 plant characteristics. (author) [French] Apres avoir rappele l'integration de l'energie nucleaire parmi les moyens de production de l'energie en France, les auteurs se penchent surtout sur l'evolution des techniques appliquees dans l'equipement des centrales nucleaires francaises et decrivent les moyens mis en oeuvre pour reduire les prix de revient du kWh d'EDF2 et d'EDF3 par rapport a EDF1: la puissance electrique par tonne d'uranium varie de 493 kW/t pour EDF1 a 970 kW/t pour EDF3. C'est dans ce but que les puissances thermiques et la puissance unitaire des groupes turbo-alternateurs passent respectivement de 290 MWt pour EDF1 a 1200 ou 1600 MWt pour EDF3 et de 82 a 250 MW. Les resultats sont obtenus par une amelioration des caracteristiques neutroniques, des progres realises sur la technologie des elements combustibles, une simplification du systeme de

  14. Interactive virtual laboratory for distance education in nuclear engineering

    International Nuclear Information System (INIS)

    Jain, P.; Stubbins, J.; Uddin, R.

    2006-01-01

    A real time, distance lab module is being developed and implemented in the Dept. of Nuclear, Plasma and Radiological Engineering at the Univ. of Illinois at Urbana-Champaign. This internet based system allows remote personnel to watch the experiments, acquire data, and interact with on-site personnel. The e-lab broadcasts not only the live scenes of laboratory and experiments, but also the real time data and plots being measured and displayed in graphical and other formats. Moreover, use of LabVIEW's remote front panel feature allows communications between the local lab and remote client so that, if permitted, remote client can control part or all of the experiment in real-time. (authors)

  15. The role of underground laboratories in nuclear waste disposal programmes

    International Nuclear Information System (INIS)

    2001-01-01

    Underground research laboratories (URLs) are essential to provide the scientific and technical information and practical experience that are needed for the design and construction of nuclear waste disposal facilities, as well as for the development of the safety case that must be presented at various stages of repository development. This report provides an overview of the purpose of URLs within repository development programmes; the range of URLs that have been developed, or are planned, in NEA Member countries to date; the various contributions that such facilities can make to repository development programmes and the development of a safety case; considerations on the timing of developing a URL within a national programme; and the opportunities and benefits of international co-operation in relation to URLs. (author)

  16. Bibliography of Connecticut Advanced Nuclear Engineering Laboratory reports

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1965-12-01

    This report, published in two volumes, is a bibliography of the reports published at the Connecticut Advanced Nuclear Engineering Laboratory (CANEL). The reports cover the period 1952 through 1965 and include the Aircraft Nuclear Propulsion program, the Advanced Liquid Metal Cooled Reactor program, the Advanced Reactor Materials program and the SNAP-50 program. The bibliography contains the report number, title, author, date published, and classification. In some cases where the writing of a report was a group effort, and in some reports containing compilations of certain types of data, the author column is not applicable. This is indicated by a {open_quotes}n.a.{close_quotes} in the author column. The following types of reports are included: PWAC`s, TIM`s, CNLM`s, FXM`s and miscellaneous reports. PWAC and TIM reports conform to the requirements of AEC Manual Chapter 3202-041 and 3202-042, respectively. Most of the technical information of interest generated by this project is documented in these reports. CNLM and FXM reports were written primarily for internal distribution. However, these reports contain enough information of technical interest to warrant their inclusion. All CNLM`s and those FXM`s considered to be of interest are included in this bibliography. The MPR`s (Monthly Progress Reports) are the most important of the miscellaneous categories of reports. The other miscellaneous categories relate primarily to equipment and reactor specifications. The Division of Technical Information Extension (DTIE) at Oak Ridge, Tennessee has been designated as the primary recipient of the reports in the CANEL library. When more than one copy of a report was available, the additional copies were delivered to the Lawrence Radiation Laboratory, Livermore, California.

  17. Bibliography of Connecticut Advanced Nuclear Engineering Laboratory reports

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1965-12-01

    This report, published in two, volumes, is a bibliography of the reports published at the Connecticut Advanced Nuclear Engineering Laboratory (CANEL). The reports cover the period 1952 through 1965 and include the Aircraft Nuclear Propulsion program, the Advanced Liquid Metal Cooled Reactor program, the Advanced Reactor Materials program and the SNAP-50 program. The bibliography contains the report number, title, author, date published, and classification. In some cases where the writing of a report was a group effort, and in some reports containing compilations of certain types of data, the author column is not applicable. This is indicated by a {open_quotes}n.a.{close_quotes} in the author column. The following types of reports are included: PWAC`s, TIM`s, CNLM`s. FXM`s and miscellaneous reports. PWAC and TIM reports conform to the requirements of AEC Manual Chapter 3202-041 and 3202-042, respectively. Most of the technical information of interest generated by this project is documented in these reports, CNLM and FXM reports were written primarily for internal distribution. However, these reports contain enough information of technical interest to warrant their inclusion. All CNLM`s and those FXM`s considered to be of interest are included in this bibliography. The MPR`s (Monthly Progress Reports) are the most important of the miscellaneous categories of reports. The other miscellaneous categories relate primarily to equipment and reactor specifications. The Division of Technical Information Extension (DTIE) at Oak Ridge, Tennessee has been designated as the primary recipient of the reports in the CANEL library. When more than one copy of a report was available, the additional copies were delivered to the Lawrence Radiation Laboratory, Livermore, California.

  18. Experience with radioactive waste incineration at Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Le, V.T.; Beamer, N.V.; Buckley, L.P.

    1988-06-01

    Chalk River Nuclear Laboratories is a nuclear research centre operated by Atomic Energy of Canada Limited. A full-scale waste treatment centre has been constructed to process low- and intermediate-level radioactive wastes generated on-site. A batch-loaded, two-stage, starved-air incinerator for solid combustible waste is one of the processes installed in this facility. The incinerator has been operating since 1982. It has consistently reduced combustible wastes to an inert ash product, with an average volume reduction factor of about 150:1. The incinerator ash is stored in 200 L drums awaiting solidification in bitumen. The incinerator and a 50-ton hydraulic baler have provided treatment for a combined volume of about 1300 m 3 /a of solid low-level radioactive waste. This paper presents a review of the performance of the incinerator during its six years of operation. In addition to presenting operational experience, an assessment of the starved-air incineration technique will also be discussed

  19. Lawrence Livermore Laboratory Nuclear Test Effects and Geologic Data Bank

    International Nuclear Information System (INIS)

    Howard, N.W.

    1976-01-01

    Data on the geology of the USERDA Nevada Test Site have been collected for the purpose of evaluating the possibility of release of radioactivity at proposed underground nuclear test sites. These data, including both the rock physical properties and the geologic structure and stratigraphy of a large number of drill-hole sites, are stored in the Lawrence Livermore Laboratory Earth Sciences Division Nuclear Test Effects and Geologic Data Bank. Retrieval programs can quickly provide a geological and geophysical comparison of a particular site with other sites where radioactivity was successfully contained. The data can be automatically sorted, compared, and averaged, and information listed according to site location, drill-hole construction, rock units, depth to key horizons and to the water table, and distance to faults. These programs also make possible ordered listings of geophysical properties (interval bulk density, overburden density, interval velocity, velocity to the surface, grain density, water content, carbonate content, porosity, and saturation of the rocks). The characteristics and capabilities of the data bank are discussed

  20. Laboratory for Nuclear Science. High Energy Physics Program

    Energy Technology Data Exchange (ETDEWEB)

    Milner, Richard [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

    2014-07-30

    High energy and nuclear physics research at MIT is conducted within the Laboratory for Nuclear Science (LNS). Almost half of the faculty in the MIT Physics Department carry out research in LNS at the theoretical and experimental frontiers of subatomic physics. Since 2004, the U.S. Department of Energy has funded the high energy physics research program through grant DE-FG02-05ER41360 (other grants and cooperative agreements provided decades of support prior to 2004). The Director of LNS serves as PI. The grant supports the research of four groups within LNS as “tasks” within the umbrella grant. Brief descriptions of each group are given here. A more detailed report from each task follows in later sections. Although grant DE-FG02-05ER41360 has ended, DOE continues to fund LNS high energy physics research through five separate grants (a research grant for each of the four groups, as well as a grant for AMS Operations). We are pleased to continue this longstanding partnership.

  1. Contaminant dispersion simulation with micrometeorological parameters generated by LES in the area around the Angra Nuclear Power Plant

    International Nuclear Information System (INIS)

    Dorado, Rodrigo M.; Moreira, Davidson M.

    2009-01-01

    In this work we report a numerical and statistical comparison between ADMM (Advection-Diffusion Multilayer Method) and GILTT (Generalized Integral Laplace Transform Technique) approaches to simulate radioactive pollutant dispersion in the atmosphere using micrometeorological parameters generated by LES (Large Eddy Simulation). To a better description of the wind profile for the irregular ground level terrain, we consider the wind profile as solution of the MesoNH model. Furthermore, we show the aptness of the discussed methods to solve contaminant dispersion problem in the atmosphere for more realistic micrometeorological parameters and wind field considering experimental data of the Angra I Nuclear Power Plant. (author)

  2. Triangle Universities Nuclear Laboratory annual report - TUNL XXIV, 1 July 1984-31 August 1985

    International Nuclear Information System (INIS)

    1985-01-01

    Research programs of the Triangle Nuclear Laboratory are discussed. These studies are based on reactions induced by polarized beam, protons, deuterons and neutrons. Individual programs are cataloged separately

  3. Annual report of the Nuclear Physics Laboratory, University of Washington

    International Nuclear Information System (INIS)

    Snover, K.; Fulton, B.

    1996-04-01

    The Nuclear Physics Laboratory of the University of Washington has for over 40 years supported a broad program of experimental physics research. Some highlights of the research activities during the past year are given. Work continues at a rapid pace toward completion of the Sudbury Neutrino Observatory in January 1997. Following four years of planning and development, installation of the acrylic vessel began last July and is now 50% complete, with final completion scheduled for September. The Russian-American Gallium Experiment (SAGE) has completed a successful 51 Cr neutrino source experiment. The first data from 8 B decay have been taken in the Mass-8 CVC/Second Class Current study. The analysis of the measured barrier distributions for Ca-induced fission of prolate 192 Os and oblate 194 Pt has been completed. In a collaboration with a group from the Bhabha Atomic Research Centre they have shown that fission anisotropies at energies well above the barrier are not influenced by the mass asymmetry of the entrance channel relative to the Businaro-Gallone critical asymmetry. They also have preliminary evidence at higher bombarding energy that noncompound nucleus fission scales with the mean square angular momentum, in contrast to previous suggestions. The authors have measured proton and alpha particle emission spectra from the decay of A ∼ 200 compound nuclei at excitation energies of 50--100 MeV, and used these measurements to infer the nuclear temperature. The investigations of multiparticle Bose-Einstein interferometry have led to a new algorithm for putting Bose-Einstein and Coulomb correlations of up to 6th order into Monte Carlo simulations of ultra-relativistic collision events, and to a new fast algorithm for extracting event temperatures

  4. Keeping the Momentum and Nuclear Forensics at Los Alamos National Laboratory

    International Nuclear Information System (INIS)

    Steiner, Robert Ernest; Dion, Heather M.; Dry, Donald E.; Kinman, William Scott; LaMont, Stephen Philip; Podlesak, David; Tandon, Lav

    2016-01-01

    LANL has 70 years of experience in nuclear forensics and supports the community through a wide variety of efforts and leveraged capabilities: Expanding the understanding of nuclear forensics, providing training on nuclear forensics methods, and developing bilateral relationships to expand our understanding of nuclear forensic science. LANL remains highly supportive of several key organizations tasked with carrying forth the Nuclear Security Summit messages: IAEA, GICNT, and INTERPOL. Analytical chemistry measurements on plutonium and uranium matrices are critical to numerous programs including safeguards accountancy verification measurements. Los Alamos National Laboratory operates capable actinide analytical chemistry and material science laboratories suitable for nuclear material and environmental forensic characterization. Los Alamos National Laboratory uses numerous means to validate and independently verify that measurement data quality objectives are met. Numerous LANL nuclear facilities support the nuclear material handling, preparation, and analysis capabilities necessary to evaluate samples containing nearly any mass of an actinide (attogram to kilogram levels).

  5. Keeping the Momentum and Nuclear Forensics at Los Alamos National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Steiner, Robert Ernest [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dion, Heather M. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Dry, Donald E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kinman, William Scott [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); LaMont, Stephen Philip [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Podlesak, David [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Tandon, Lav [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-07-22

    LANL has 70 years of experience in nuclear forensics and supports the community through a wide variety of efforts and leveraged capabilities: Expanding the understanding of nuclear forensics, providing training on nuclear forensics methods, and developing bilateral relationships to expand our understanding of nuclear forensic science. LANL remains highly supportive of several key organizations tasked with carrying forth the Nuclear Security Summit messages: IAEA, GICNT, and INTERPOL. Analytical chemistry measurements on plutonium and uranium matrices are critical to numerous programs including safeguards accountancy verification measurements. Los Alamos National Laboratory operates capable actinide analytical chemistry and material science laboratories suitable for nuclear material and environmental forensic characterization. Los Alamos National Laboratory uses numerous means to validate and independently verify that measurement data quality objectives are met. Numerous LANL nuclear facilities support the nuclear material handling, preparation, and analysis capabilities necessary to evaluate samples containing nearly any mass of an actinide (attogram to kilogram levels).

  6. Some fundamental aspects of boiling in nuclear reactors; Quelques aspects fondamentaux de l'ebullition dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Mondin, H; Lavigne, P; Semeria, R [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1964-07-01

    The main results obtained at Grenoble during the last four years in the field of boiling mechanisms and related phenomena in nuclear reactors are reported. 1 - Observation Of Boiling: By the use of photography and ultrafast cinematography (8000 frames per second maximum), boiling in a vessel or a tube was observed up to 140 kg/cm{sup 2}. The populations of bubble-generating seeds (sites) were counted, and a correlation established giving their number per unit of surface area as a function of the thermal flux and the pressure. The diameter of the bubbles breaking of from the wall was studied up to 140 kg/cm{sup 2}: three types of bubble have been shown to exist: - those in equilibrium, their diameter following the formula of Fritz and Ende, - bubbles found by boiling, the diameters of which decrease rapidly with the pressure (1/100 mm to 140 kg/cm{sup 2}), - the coalescences which appear in saturated liquid above 15 W/cm{sup 2}, their proportion being independent of the pressure. Strioscopic observations were made of the movements of the thermal film associated with the generation of the seeds, at the initiation and condensation of the bubbles, the mechanisms responsible for the highly efficient heat transfer could thus be defined. 2 - Pressure Losses In Two-Phase Flow: A physical model of the continuous variation of the free space content in a boiling channel has been proposed by means of which the pressure losses can be calculated without invoking a break in the coefficient of friction when free boiling begins. Agreement between theory and experiment is satisfactory. The various forms which total pressure loss in a boiling tube may present as a function of flow rate have been studied. Special features are observed at very low and very high speeds. 3 - Burn-Out: Under steady operating conditions, it is shown that in a uniformly heated channel the burn-out flux as a function of output rate is generally independent of the length. When burn-out is a result of output

  7. Educational laboratory experiments on chemistry in a nuclear engineering school

    International Nuclear Information System (INIS)

    Akatsu, E.

    1982-01-01

    An educational laboratory experiment on radiochemistry was investigated by students in the general course of the Nuclear Engineering School of Japan Atomic Energy Research Institute. Most of them are not chemical engineers, but electrical and mechanical engineers. Therefore, the educational experiment was designed for them by introducing a ''word experiment'' in the initial stage and by reducing the chemical procedure as far as possible. It began with calculations on a simple solvent extraction process-the ''word experiment''--followed by the chemical separation of 144 Pr from 144 Ce with tri-n-butyl phosphate in a nitric acid system and then measurement of the radioactive decay and growth of the separated 144 Pr and 144 Ce, respectively. The chemical procedure was explained by the phenomenon but not by the mechanism of chelation. Most students thought the experiment was an exercise in solvent extraction or radiochemical separation rather than a radioactive equilibrium experiment. However, a pure chemist considered it as a sort of physical experiment, where the chemical procedure was used only for preparation of measuring samples. Another experiment, where 137 Cs was measured after isolation with ammonium phosphomolybdate, was also investigated. The experiment eliminated the need for students who were not chemists to know how to use radioactive tracers. These students appreciated the realization that they could understand the radioactivity in the environmental samples in a chemical frame of reference even though they were not chemists

  8. Elecnuc. Nuclear power plants in the world; Elecnuc. Les centrales nucleaires dans le monde

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    This small booklet summarizes in tables all data relative to the nuclear power plants worldwide. These data come from the IAEA's PRIS and AREVA-CEA's GAIA databases. The following aspects are reviewed: 2007 highlights; Main characteristics of reactor types; Map of the French nuclear power plants on 2007/01/01; Worldwide status of nuclear power plants (12/31/2007); Units distributed by countries; Nuclear power plants connected to the Grid- by reactor type groups; Nuclear power plants under construction on 2007; Evolution of nuclear power plants capacities connected to the grid; First electric generations supplied by a nuclear unit in each country; Electrical generation from nuclear power plants by country at the end 2007; Performance indicator of French PWR units; Evolution of the generation indicators worldwide by type; Nuclear operator ranking according to their installed capacity; Units connected to the grid by countries at 12/31/2007; Status of licence renewal applications in USA; Nuclear power plants under construction at 12/31/2007; Shutdown reactors; Exported nuclear capacity in net MWe; Exported and national nuclear capacity connected to the grid; Exported nuclear power plants under construction; Exported and national nuclear capacity under construction; Nuclear power plants ordered at 12/31/2007; Long term shutdown units at 12/31/2007; COL (combined licences) applications in the USA; Recycling of Plutonium in reactors and experiences; Mox licence plants projects; Appendix - historical development; Meaning of the used acronyms; Glossary.

  9. A High Intensity Multi-Purpose D-D Neutron Generator for Nuclear Engineering Laboratories

    International Nuclear Information System (INIS)

    Ka-Ngo Leung; Jasmina L. Vujic; Edward C. Morse; Per F. Peterson

    2005-01-01

    This NEER project involves the design, construction and testing of a low-cost high intensity D-D neutron generator for teaching nuclear engineering students in a laboratory environment without radioisotopes or a nuclear reactor. The neutron generator was designed, fabricated and tested at Lawrence Berkeley National Laboratory (LBNL)

  10. 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

  11. Accelerator Mass Spectrometry at the Nuclear Science Laboratory: Applications to Nuclear Astrophysics

    Science.gov (United States)

    Collon, P.; Bauder, W.; Bowers, M.; Lu, W.; Ostdiek, K.; Robertson, D.

    The Accelerator Mass Spectrometry (AMS) program at the Nuclear Science Laboratory of the University of Notre Dame is focused on measurements related to galactic radioactivity and to nucleosynthesis of main stellar burning as well as the production of so called Short-Lived Radionuclides (SLRs) in the Early Solar System (ESS). The research program is based around the 11MV FN tandem accelerator and the use of the gas-filled magnet technique for isobar separation. Using a technique that evolved from radiocarbon dating, this paper presents a number of research programs that rely on the use of an 11MV tandem accelerator at the center of the AMS program.

  12. Elecnuc. Nuclear power plants in the world; Elecnuc. Les centrales nucleaires dans le monde

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This 2003 version of Elecnuc contents information, data and charts on the nuclear power plants in the world and general information on the national perspectives concerning the electric power industry. The following topics are presented: 2002 highlights; characteristics of main reactor types and on order; map of the French nuclear power plants; the worldwide status of nuclear power plants on 2002/12/3; units distributed by countries; nuclear power plants connected to the Grid by reactor type groups; nuclear power plants under construction; capacity of the nuclear power plants on the grid; first electric generations supplied by a nuclear unit; electrical generation from nuclear plants by country at the end 2002; performance indicator of french PWR units; trends of the generation indicator worldwide from 1960 to 2002; 2002 cumulative Load Factor by owners; nuclear power plants connected to the grid by countries; status of license renewal applications in Usa; nuclear power plants under construction; Shutdown nuclear power plants; exported nuclear power plants by type; exported nuclear power plants by countries; nuclear power plants under construction or order; steam generator replacements; recycling of Plutonium in LWR; projects of MOX fuel use in reactors; electricity needs of Germany, Belgium, Spain, Finland, United Kingdom; electricity indicators of the five countries. (A.L.B.)

  13. Elecnuc. Nuclear power plants worldwide; Elecnuc. Les centrales nucleaires dans le monde

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    This small folder presents a digest of some useful information concerning the nuclear power plants worldwide and the situation of nuclear industry at the end of 1997: power production of nuclear origin, distribution of reactor types, number of installed units, evolution and prediction of reactor orders, connections to the grid and decommissioning, worldwide development of nuclear power, evolution of power production of nuclear origin, the installed power per reactor type, market shares and exports of the main nuclear engineering companies, power plants constructions and orders situation, evolution of reactors performances during the last 10 years, know-how and development of nuclear safety, the remarkable facts of 1997, the future of nuclear power and the energy policy trends. (J.S.)

  14. The American and Russian plans of nuclear disarmament; Les plans americain et sovietique de desarmement nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Gallois, P.

    2010-07-15

    This text was published in 1991, at the end of the Cold War. The author comments the intentions of the US and Russia leaders, Bush and Gorbachev, on nuclear disarmament and more specifically on limitations and reductions concerning the different nuclear weapons types and vectors (ballistic missiles, submarine launched missiles, Europe-based missiles, nuclear strategic warheads, nuclear weapon movements, short range missiles, cruise missiles). He also evokes the consequences for France of the American propositions

  15. Progress report for (1974-1984) of Nuclear Research Laboratory, Srinagar, Kashmir

    International Nuclear Information System (INIS)

    Kaul, P.K.; Razdan, H.

    1985-01-01

    The Nuclear Research Laboratory, established at Srinagar in 1974, serves as a base laboratory to organise research activities at the High Altitude Research Laboratory at Gulmarg. Space physics, nuclear physics, radiation and atmospheric chemistry, and technical physics: are the fields in which the research facilities are established at the Laboratory, over the past ten years. The highlights of the various research programmes undertaken at the Laboratory during the period 1974-1984 are presented in the form of summaries. A list of papers published in various journals and presented at different conferences, symposia etc. is given at the end. (M.G.B.)

  16. Materials characterization capabilities at DOE Nuclear Weapons Laboratories and Production Plants

    International Nuclear Information System (INIS)

    Pyper, J.W.

    1984-06-01

    The materials characterization and analytical chemistry capabilities at the 11 DOE Nuclear Weapons Laboratories or Production Plants have been surveyed and compared. In general, all laboratories have similar capabilities and equipment. Facilities or capabilities that are unique or that exist at only a few laboratories are described in detail

  17. Managing Spent Nuclear Fuel at the Idaho National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Thomas Hill; Denzel L. Fillmore

    2005-10-01

    The Idaho National Laboratory (INL) has a large inventory of diverse types of spent nuclear fuel (SNF). This legacy derives from the history of the INL as the National Reactor Testing Station, and from its mission to recover HEU from SNF and to test and examine SNF after irradiation. The INL also has a large diversity of SNF storage facilities, some 50 years old. SNF at INL has many forms—from intact assemblies down to metallurgical mounts, and some fuel has been wet stored for over 40 years. SNF is stored bare or in metal cans under water, or dry in vaults, caissons or casks. Inspection shows varying corrosion and degradation of the SNF and its storage cans. SNF has been stored in 10 different facilities: 5 pools, one cask storage pad, one vault, two generations of caisson facilities, and one modular Independent Spent Fuel Storage Installation (ISFSI). The pools range in age from 40 years old to the most modern in the US Department of Energy (DOE) complex. The near-term objective is to move SNF from older pools to interim dry storage, allowing shutdown and decommissioning of the older facilities. This move involves drying methods that are dependent on fuel type. The long-term objective is to have INL SNF in safe dry storage and ready to be shipped to the National Repository. The unique features of the INL SNF requires special treatments and packaging to meet the proposed repository acceptance criteria and SNF will be repackaged in standardized canisters for shipment and disposal in the National Repository. Disposal will use the standardized canisters that can be co-disposed with High Level Waste glass logs to limit the total fissile material in a repository waste package. The DOE standardized canister also simplifies the repository handling of the multitude of DOE SNF sizes and shapes.

  18. Status report on US-Russian laboratory-to-laboratory cooperation in nuclear materials protection, control and accounting

    International Nuclear Information System (INIS)

    Mullen, M.

    1996-01-01

    In April 1994, a new program of cooperation on nuclear materials protection, control, and accounting (MPC and A) was initiated between (1) the US Department of Energy and its laboratories and (2) nuclear institutes and enterprises of the Russian Federation. The program is called the Laboratory-to-Laboratory Nuclear Materials Protection, Control, and Accounting Program (Lab-to-Lab MPC and A Program); it is one of several, complementary US-Russian MPC and A programs. The purpose of the Lab-to-Lab MPC and A Program is to accelerate progress toward a goal that is vital to the national security interests of both countries: reducing the risk of nuclear weapons proliferation by strengthening MPC and A systems. In its first two years, the program has made significant progress and has expanded to include many additional Russian participants. It has also fostered a spirit of mutual understanding, partnership, and respect between US and Russian nuclear specialists, which has paved the way for advances in other MPC and A and nuclear security cooperative efforts. This paper reviews the current status of the program. In addition to summarizing the background and objectives of the program, the paper describes highlights of recent work and outlines future directions for Lab-to-Lab MPC and A cooperation

  19. The Los Alamos National Laboratory nuclear vision project

    International Nuclear Information System (INIS)

    Arthur, E.D.; Wagner, R.L. Jnr.

    1996-01-01

    The aims, methodology and approach of the Nuclear Vision Project are described. It is not an attempt to predict the future but aims to explore alternative futures and their implications. Some essential elements of the study are: the future of nuclear power and other civil applications; nuclear weapons and proliferation; the institutions associated with, and public opinions about, nuclear science and technology; and environment-related issues. The overall objective is to create a ''global vision'' of how to balance the benefits and dangers of nuclear technology. (6 figures; 12 references). (UK)

  20. LES of a laboratory-scale turbulent premixed bunsen flame using FSD, PCM-FPI and thickened flame models

    NARCIS (Netherlands)

    Hernandez Perez, F.E.; Yuen, F.T.C.; Groth, C.P.T.; Gülder, O.L.

    2011-01-01

    Large-eddy simulations (LES) of a turbulent premixed Bunsen flame were carried out with three subfilter-scale (SFS) modelling approaches for turbulent premixed combustion. One approach is based on the artificially thickened flame and power-law flame wrinkling models, the second approach is based on

  1. Argonne National Laboratory: An example of a US nuclear research centre

    International Nuclear Information System (INIS)

    Bhattacharyya, S.

    2001-01-01

    The nuclear era was ushered in 1942 with the demonstration of a sustained nuclear chain reaction in Chicago Pile 1 facility. The USA then set up five large national multi disciplinary laboratories for developing nuclear technology for civilian use and three national laboratories for military applications. Reactor development, including prototype construction, was the main focus of the Argonne National Laboratory. More than 100 power reactors operating in the USA have benefited from R and D in the national laboratories. However, currently the support for nuclear power has waned. With the end of the cold war there has also been a need to change the mission of laboratories involved in military applications. For all laboratories of the Department of Energy (DOE) the mission, which was clearly focused earlier on high risk, high payoff long term R and D has now become quite diffused with a number of near term programmes. Cost and mission considerations have resulted in shutting down of many large facilities as well as auxiliary facilities. Erosion of infrastructure has also resulted in reduced opportunities for research which means dwindling of interest in nuclear science and engineering among the younger generation. The current focus of nuclear R and D in the DOE laboratories is on plant life extension, deactivation and decommissioning, spent fuel management and waste management. Advanced aspects include space nuclear applications and nuclear fusion R and D. At the Argonne National Laboratory, major initiatives for the future would be in the areas of science, energy, environment and non-proliferation technologies. International collaboration would be useful mechanisms to achieve cost effective solutions for major developmental areas. These include reactor operation and safety, repositories for high level nuclear waste, reactor system decommissioning, large projects like a nuclear fusion reactor and advanced power reactors. The IAEA could have a positive role in these

  2. Nuclear energy and its synergies with renewable energies; Le nucleaire dans ses synergies avec les renouvelables

    Energy Technology Data Exchange (ETDEWEB)

    Carre, F. [CEA Saclay, DEN, 91 - Gif-sur-Yvette (France); Mermilliod, N. [CEA Grenoble, Dir. de la Recherche Technologique, 38 (France); Devezeaux De Lavergne, J.G. [CEA Saclay, Dir. de l' Institut de tecchnico-economie des systemes energetiques I-tese, 91 - Gif-sur-Yvette (France); Durand, S. [CEA Grenoble, European Institute of Technology -KIC InnoEnergy, 38 (France)

    2011-05-15

    France has the ambition to become a world leader in both nuclear industry and in renewable energies. 3 types of synergies between nuclear power and renewable energies are highlighted. First, nuclear power can be used as a low-carbon energy to produce the equipment required to renewable energy production for instance photovoltaic cells. Secondly, to benefit from the complementary features of both energies: continuous/intermittency of the production, centralized/local production. The future development of smart grids will help to do that. Thirdly, to use nuclear energy to produce massively hydrogen from water and synthetic fuels from biomass. (A.C.)

  3. From dripline to dripline: Nuclear astrophysics in the laboratory

    International Nuclear Information System (INIS)

    Meisel, Zach

    2016-01-01

    For the better part of a century the field of nuclear astrophysics has aimed to answer fundamental questions about nature, such as the origin of the elements and the behavior of high-density, low-temperature matter. Sustained and concerted efforts in nuclear experiment have been key to achieving progress in these areas and will continue to be so. Here I will briefly review recent accomplishments and open questions in experimental nuclear astrophysics. (paper)

  4. Unrestricted re-use of decommissioned nuclear laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Cornelissen, R; Noynaert, L; Harnie, S; Marien, J

    1996-09-18

    A decommissioning strategy was developed by the Belgian Nuclear Research Centre SCK/CEN. In this strategy decommissioning works are limited to the radioactive parts of the nuclear installation. After obtaining an attestation for unrestricted reuse of the building after removal of all radioactivity, the building can be used for new industrial purposes outside the nuclear field. The decommissioning activities according to this strategy have been applied in four buildings. The results are described.

  5. MANAGING SPENT NUCLEAR FUEL WASTES AT THE IDAHO NATIONAL LABORATORY

    Energy Technology Data Exchange (ETDEWEB)

    Hill, Thomas J

    2005-09-01

    The Idaho National Engineering Laboratory (INL) has a large inventory of diverse types of spent nuclear fuel (SNF). This legacy is in part due to the history of the INL as the National Reactor Testing Station, in part to its mission to recover highly enriched uranium from SNF and in part to it’s mission to test and examine SNF after irradiation. The INL also has a large diversity of SNF storage facility, some dating back 50 years in the site history. The success of the INL SNF program is measured by its ability to: 1) achieve safe existing storage, 2) continue to receive SNF from other locations, both foreign and domestic, 3) repackage SNF from wet storage to interim dry storage, and 4) prepare the SNF for dispositioning in a federal repository. Because of the diversity in the SNF and the facilities at the INL, the INL is addressing almost very condition that may exist in the SNF world. Many of solutions developed by the INL are applicable to other SNF storage sites as they develop their management strategy. The SNF being managed by the INL are in a variety of conditions, from intact assemblies to individual rods or plates to powders, rubble, and metallurgical mounts. Some of the fuel has been in wet storage for over forty years. The fuel is stored bare, or in metal cans and either wet under water or dry in vaults, caissons or casks. Inspections have shown varying degrees of corrosion and degradation of the fuel and the storage cans. Some of the fuel has been recanned under water, and the conditions of the fuel inside the second or third can are unknown. The fuel has been stored in one of 10 different facilities: five wet pools and one casks storage pad, one vault, two generations of caisson facilities, and one modular Independent Spent Fuel Storage Installation (ISFSI). The wet pools range from forty years old to the most modern pool in the US Department of Energy (DOE) complex. The near-term objective is moving the fuel in the older wet storage facilities to

  6. A new nuclear materials laboratory at Queen's University

    International Nuclear Information System (INIS)

    Holt, R.A.; Daymond, M.R.

    2015-01-01

    The Reactor Materials Testing Laboratory (RMTL) at Queen's University and the results of commissioning tests are described. RMTL uses energetic protons (up to 8MeV) to simulate fast neutron damage in materials for reactor components. The laboratory is also capable of He implantation (up to 12 MeV) to simulate the effects of transmutation He in reactor components. The $17.5M laboratory comprises a new building, a 4MV tandem accelerator, two electron microscopes, mechanical testing and specimen preparation equipment, and a radiation detection laboratory. RMTL focusses on studying dynamic effects of irradiation (irradiation creep, irradiation growth, irradiation induced swelling, fatigue under irradiation) in-situ. (author)

  7. Elecnuc. Nuclear power plants in the world; Elecnuc. Les centrales nucleaires dans le monde

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This small booklet summarizes in tables all the numerical data relative to the nuclear power plants worldwide. These data come from the French CEA/DSE/SEE Elecnuc database. The following aspects are reviewed: 1999 highlights; main characteristics of the reactor types in operation, under construction or on order; map of the French nuclear power plants; worldwide status of nuclear power plants at the end of 1999; nuclear power plants in operation, under construction and on order; capacity of nuclear power plants in operation; net and gross capacity of nuclear power plants on the grid and in commercial operation; grid connection forecasts; world electric power market; electronuclear owners and share holders in EU, capacity and load factor; first power generation of nuclear origin per country, achieved or expected; performance indicator of PWR units in France; worldwide trend of the power generation indicator; 1999 gross load factor by operator; nuclear power plants in operation, under construction, on order, planned, cancelled, shutdown, and exported; planning of steam generators replacement; MOX fuel program for plutonium recycling. (J.S.)

  8. Group fellowship training in nuclear spectroscopy instrumentation maintenance at the Seibersdorf Laboratories

    International Nuclear Information System (INIS)

    Xie, Y.; Abdel-Rassoul, A.A.

    1989-01-01

    Nuclear spectroscopy instruments are important tools for nuclear research and applications. Several types of nuclear spectrometers are being sent to numerous laboratories in developing countries through technical co-operation projects. These are mostly sophisticated systems based on different radiation detectors, analogue and digital circuitry. In most cases, they use microprocessor or computer techniques involving software and hardware. Maintenance service and repair of these systems is a major problem in many developing countries because suppliers do not set up service stations. The Agency's Laboratories at Seibersdorf started conducting group fellowship training on nuclear spectroscopy instrumentation maintenance in 1987. This article describes the training programme

  9. Health problems raised by the elimination of radioactive wastes and nuclear accidents; Problemes sanitaires poses par l'elimination des dechets radioactifs et par les accidents nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Jammet, H; Mechali, D; Dousset, M [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1964-07-01

    The rapid development of nuclear energy demands an urgent solution to the health problems arising from the discharge into the environment of radioactive residues produced by nuclear installations. - To be able to evaluate the risks run by the population and to fix tolerance limits for waste discharge, it is necessary to possess an exact knowledge of the course taken by the radioelements discharged, from their source until they reach man. The incorporation of radioelements in food cycles is the first risk to take into consideration. The factors involved in all stages of this transmission must be foreseen, whether they concern physical or biological media, because of their continuity and their interdependence. Finally, socio-economic and dietetic data must be collected in order that the risks and tolerance levels estimated are based on concrete and experimental rather than theoretical knowledge. The risk of nuclear accidents in the atomic industry, although very improbable, must be taken into consideration because of the seriousness of their consequences. The health problems arise in the field of professional hygiene on the one hand and in that of public hygiene on the other. In the first field the risk is two-fold and involves irradiation and contamination. The public sphere is reduced essentially to the risk of contamination by radioactive substances accidentally released in the surrounding medium. The health studies to be conducted in this field therefore include research not only on irradiation or contamination therapeutics but also on the transfer of radioelements from the accident site to man, mainly through food cycles, in their physical and in their biological components. Studies of this kind form the basis of decisions in the health field which would have to be taken in the case of an accident. (authors) [French] Le developpement rapide de l'energie nucleaire rend urgente la solution des problemes sanitaires poses par le rejet dans le milieu ambiant des

  10. Retrospect over past 25 years at Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

    International Nuclear Information System (INIS)

    Aoki, Shigebumi

    1983-01-01

    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, was established on April 1, 1956, with the aims of the investigation on the peaceful use of nuclear energy and of the education of scientists and engineers in this field. This report reviews the history of the Laboratory during 25 years and traces the process of growth concerning research divisions, buildings, large-scale experimental facilities and the education in the graduate course for nuclear engineering. In addition, considering what the Laboratory has to be and what the future plan will be, it is mentioned that the research interest should be extended to the field of nuclear fusion reactor, especially the blanket engineering, as a long-term future project of the Research Laboratory. (author)

  11. Nuclear Physics Laboratory, University of Washington annual report, 1989

    International Nuclear Information System (INIS)

    1989-04-01

    This report discusses the following topics: astrophysics; giant resonances; heavy ion induced reactions; fundamental symmetries; nuclear reaction -- polarization; medium energy reactions; accelerator mass spectroscopy; research by outside users; van de Graaff and ion sources; computer systems; instrumentation; and booster linac

  12. Description of methods for making activation detectors for use in nuclear reactors; Description des procedes de fabrication des detecteurs d'activation utilises dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Barbalat, R; Le Coguie, R; Leger, P; Salon, L; Thierry, M [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1968-07-01

    A brief description of methods currently used for making activation detectors, thin films and various deposits used in nuclear reactors. The thicknesses required vary from about a few tenths of a micron to a few tenths of a millimeter. Different techniques are used for fixing the large variety of elements: rolling, moulding, painting, electrolysis, vacuum deposition, thin films, wires, enamels, protective linings, etc. (authors) [French] Expose succinct des procedes actuellement mis en oeuvre pour la realisation des detecteurs d'activation, feuilles minces et depots divers utilises dans les reacteurs nucleaires. La gamme des epaisseurs necessaires s'etendant approximativement des dixiemes de micrometre aux dixiemes de millimetre. La diversite des elements a fixer justifiant les techniques differentes selon les cas: laminage, moulage, peinture, electrolyse, depot sous vide, couches minces, fils, emaux, revetements protecteurs, etc. (auteurs)

  13. Nuclear Forensics and Attribution: A National Laboratory Perspective

    Science.gov (United States)

    Hall, Howard L.

    2008-04-01

    Current capabilities in technical nuclear forensics - the extraction of information from nuclear and/or radiological materials to support the attribution of a nuclear incident to material sources, transit routes, and ultimately perpetrator identity - derive largely from three sources: nuclear weapons testing and surveillance programs of the Cold War, advances in analytical chemistry and materials characterization techniques, and abilities to perform ``conventional'' forensics (e.g., fingerprints) on radiologically contaminated items. Leveraging that scientific infrastructure has provided a baseline capability to the nation, but we are only beginning to explore the scientific challenges that stand between today's capabilities and tomorrow's requirements. These scientific challenges include radically rethinking radioanalytical chemistry approaches, developing rapidly deployable sampling and analysis systems for field applications, and improving analytical instrumentation. Coupled with the ability to measure a signature faster or more exquisitely, we must also develop the ability to interpret those signatures for meaning. This requires understanding of the physics and chemistry of nuclear materials processes well beyond our current level - especially since we are unlikely to ever have direct access to all potential sources of nuclear threat materials.

  14. Laboratory approaches of nuclear reactions involved in primordial and stellar nucleosynthesis

    International Nuclear Information System (INIS)

    Rolfs, C.; California Inst. of Tech., Pasadena

    1986-01-01

    Laboratory-based studies of primordial and stellar nucleosynthesis are reviewed, with emphasis on the nuclear reactions induced by charged particles. The analytical approach used to investigate nuclear reactions associated with stellar reactions is described, as well as the experimental details and procedures used to investigate nuclear reactions induced by charged particles. The present knowledge of some of the key reactions involved in primordial nucleosynthesis is discussed, along with the progress and problems of nuclear reactions involved in the hydrogen and helium burning phases of a star. Finally, a description is given of new experimental techniques which might be useful for future experiments in the field of nuclear astrophysics. (U.K.)

  15. Assistance to high schools: A mobile Nuclear Physics Laboratory. Final report, 1991--1992 activities

    International Nuclear Information System (INIS)

    Kerlin, T.W.; Dean, C.H.

    1992-01-01

    The Nuclear Engineering Department of the University of Tennessee was awarded a grant from DOE to expand and improve a program of assisting high school physics teachers in their coverage of nuclear physics. Nuclear physics has routinely been handled poorly in high school classes. There are several reasons for this: nuclear physics is usually near the end of high school physics texts and teachers often fail to get to it, many teachers are unfamiliar with nuclear physics and are reluctant to cover it, and laboratories are a problem because equipment is expensive, teachers often do not know how to use the equipment and schools often do not want to store radioactive sources. The assistance program encourages teachers to cover nuclear physics and overcomes the problems associated with laboratories

  16. The development of computer industry and applications of its relevant techniques in nuclear research laboratories

    International Nuclear Information System (INIS)

    Dai Guiliang

    1988-01-01

    The increasing needs for computers in the area of nuclear science and technology are described. The current status of commerical availabe computer products of different scale in world market are briefly reviewed. A survey of some noticeable techniques is given from the view point of computer applications in nuclear science research laboratories

  17. G.N. Florov Laboratory of Nuclear Reactions, history and the present day

    International Nuclear Information System (INIS)

    Szmider, J.

    1996-01-01

    The scientific activity and review of results attained at Florov Nuclear Reactions Laboratory of the Joined Institute of Nuclear Research, Dubna, have been presented in historical order. Especially the heavy ion cyclotron use for synthesis of new super-heavy elements as well as investigations of their physical and chemical properties have been shown. 1 fig

  18. Technical basis for nuclear accident dosimetry at the Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Kerr, G.D.; Mei, G.T.

    1993-08-01

    The Oak Ridge National Laboratory (ORNL) Environmental, Safety, and Health Emergency Response Organization has the responsibility of providing analyses of personnel exposures to neutrons and gamma rays from a nuclear accident. This report presents the technical and philosophical basis for the dose assessment aspects of the nuclear accident dosimetry (NAD) system at ORNL. The issues addressed are regulatory guidelines, ORNL NAD system components and performance, and the interpretation of dosimetric information that would be gathered following a nuclear accident

  19. Formal training program for nuclear material custodians at Hanford Engineering Development Laboratory

    International Nuclear Information System (INIS)

    Scott, D.D.

    1979-01-01

    Hanford Engineering Development Laboratory (HEDL) has established a formal training program for nuclear material (NM) custodians. The program, designed to familiarize the custodian with the fundamental concepts of proper nuclear materials control and accountability, is conducted on a semiannual basis. The program is prepared and presented by the Safeguards and Materials Management Section of HEDL and covers 14 subjects on accountability, documentation, transportation, custodian responsibilities, and the safeguarding of nuclear material

  20. The wastes of nuclear fission; Les dechets de la fission nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Doubre, H. [Paris-11 Univ., Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, IN2P3/CNRS, 91 - Orsay (France)

    2005-07-01

    In this paper the author presents the problems of the radioactive wastes generated by the nuclear fission. The first part devoted to the fission phenomenon explains the incident neutron energy and the target nuclei role. The second part devoted to the nuclear wastes sources presents the production of wastes upstream of the reactors, in the reactors and why these wastes are dangerous. The third part discusses the radioactive wastes management in France (classification, laws). The last part details the associated research programs: the radionuclides separation, the disposal, the underground storage, the transmutation and the thorium cycle. (A.L.B.)

  1. Radiopharmaceutical substances and nuclear pharmacy; Les medicaments radiopharmaceutiques et la radiopharmacie

    Energy Technology Data Exchange (ETDEWEB)

    Guilloteau, D [Hopital Bretonneau, 37 - Tours (France)

    1994-12-31

    Nuclear medicine needs more and more specific radiolabelled agents which are injected in humans for diagnosis or therapy: as such, they are pharmaceutical substances. Therefore, these radiopharmaceuticals must be prepared and distributed according to the rules applied to other pharmaceutical drugs. Such rules allow to warrant a good quality in diagnosis and therapy applications with a high security for the patient. In this article, we describe the role of the nuclear pharmacist in the field of development, preparation, quality control and dispensation. (author). 16 refs.

  2. Nuclear robotics and remote handling at Harwell Laboratory

    International Nuclear Information System (INIS)

    Abel, E.; Brown, M.H.; Fischer, P.J.; Garlick, D.R.; Hanna, T.T.; Siva, K.V.

    1988-01-01

    After reviewing robotics technology and its possible application in nuclear remote handling systems of the future, six main research topics were identified where particular effort should be made. The Harwell Nuclear Robotics Programme is currently establishing sets of demonstration hardware which will allow generic research to be carried out on telerobotics, systems integration, the man machine interface, communications, servo systems and radiation tolerance. The objectives of the demonstrators are to allow validation of the techniques required for successful active facility applications such as decommissioning, decontamination, refurbishment, maintenance and repair, and to act as training aids to encourage plant designers and operators to adopt developments in new technology. (author)

  3. Thermal energy of nuclear origin produced in non-fissile materials (1962); Energie calorifique d'origine nucleaire degagee dans les materiaux non fissiles (1962)

    Energy Technology Data Exchange (ETDEWEB)

    Naudet, G [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires; Millies, P; Berger, J [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1962-07-01

    A first part is devoted to the description of the interaction phenomena between elementary particles and material that may be observed during the irradiation process in a nuclear reactor: nuclear reactions due to neutrons, production of gamma rays and absorption of those gamma rays through various processes. In a second part the phenomena producing calorific energy in irradiated material are quantitatively examined. In the third part results are summed up in a formulary. The fourth part presents tables and figures giving to the reader all the numerical values necessary for practical calculations. (authors) [French] Une premiere partie est consacree a l'examen des principaux phenomenes d'interaction des particules avec la matiere qui interviennent lors d'une irradiation dans un reacteur: reactions nucleaires dues aux neutrons, production des rayons gamma et absorption de ces derniers par les divers processus. Une deuxieme partie etudie quantitativement les phenomenes qui conduisent a l'apparition d'energie calorifique dans le materiau irradie. En troisieme partie, un formulaire resume les resultats etablis. Dans une quatrieme partie, des tableaux et des courbes fournissent a l'experimentateur toutes les valeurs numeriques necessaires aux calculs pratiques. (auteurs)

  4. Computer-based nuclear radiation detection and instrumentation teaching laboratory system

    International Nuclear Information System (INIS)

    Ellis, W.H.; He, Q.

    1993-01-01

    The integration of computers into the University of Florida's Nuclear Engineering Sciences teaching laboratories is based on the innovative use of MacIntosh 2 microcomputers, IEEE-488 (GPIB) communication and control bus system and protocol, compatible modular nuclear instrumentation (NIM) and test equipment, LabVIEW graphics and applications software, with locally prepared, interactive, menu-driven, HyperCard based multi-exercise laboratory instruction sets and procedures. Results thus far have been highly successful with the majority of the laboratory exercises having been implemented

  5. Re-Development of Radiocarbon Dating Laboratory in Malaysian Nuclear Agency

    International Nuclear Information System (INIS)

    Norfaizal Mohamed; Nita Salina Abu Bakar; Phillip, E.

    2015-01-01

    Nuclear Dating Laboratory, formerly known as Radiocarbon Laboratory was established in Malaysian Nuclear Agency (Nuclear Malaysia) since 1983. A benzene synthesis line for radiocarbon (carbon-14) dating was installed in this laboratory by Australian Atomic Energy Commission (AAEC) under the Hydrology Isotope Project, a collaboration project between IAEA, AAEC and PUSPATI (former name for Nuclear Malaysia). Determining the age of samples could be performed using this facility throughout two main processes, namely the production of benzene containing C-14 isotopes and activity determination of C-14 using Liquid Scintillation Counter. Realizing the need and importance of Nuclear Dating Laboratory for the nations science and technology development, the Top Management of Nuclear Malaysia was agreed to hand over this laboratory and its facilities to Waste Technology and Environmental Division (BAS) started in June 2013 for the redevelopment. Hence, this paper will highlight the weaknesses and problems that need to be addressed and improved to enable it to be used in providing a good service. (author)

  6. Nuclear Reactor Laboratory annual report, fiscal year 1981-1982

    International Nuclear Information System (INIS)

    Cashwell, R.J.

    1982-01-01

    Information related to the use of the UWNR reactor is presented concerning instructional use by the Nuclear Engineering Department; reactor sharing program; utility personnel training; sample irradiations and neutron activation analysis services; changes in personnel, facility, and procedures; and results of surveillance tests

  7. The Chalk River Nuclear Laboratories contingency plan -a brief description

    International Nuclear Information System (INIS)

    White, J.M.

    1982-01-01

    A brief description of the contingency plan which deals with both the on-site and off-site consequences of a serious nuclear accident is given. The off-site consequences of different size releases and the subsequent action taken by employees, radiation protection experts, municipal, Provincial and Federal authorities is described and the interaction of the various groups is discussed. (author)

  8. Nuclear Physics Laboratory annual report, University of Washington April 1992

    International Nuclear Information System (INIS)

    1992-01-01

    This report contains short discusses on topics in the following areas: astrophysics; giant resonances and photonuclear reactions; nucleus-nucleus reactions; fundamental symmetries; accelerator mass spectrometry; medium energy nuclear physics; ultra-relativistic heavy ion collisions; cluster fusion; instrumentation; van de graaff accelerators and ion sources; and computer data acquisition systems

  9. Nuclear Physics Laboratory annual report, University of Washington April 1992

    Energy Technology Data Exchange (ETDEWEB)

    1992-07-01

    This report contains short discusses on topics in the following areas: astrophysics; giant resonances and photonuclear reactions; nucleus-nucleus reactions; fundamental symmetries; accelerator mass spectrometry; medium energy nuclear physics; ultra-relativistic heavy ion collisions; cluster fusion; instrumentation; van de graaff accelerators and ion sources; and computer data acquisition systems. (LSP)

  10. Nuclear Physics Laboratory annual report, University of Washington April 1992

    Energy Technology Data Exchange (ETDEWEB)

    Cramer, John G.; Ramirez, Maria G.

    1992-01-01

    This report contains short discusses on topics in the following areas: astrophysics; giant resonances and photonuclear reactions; nucleus-nucleus reactions; fundamental symmetries; accelerator mass spectrometry; medium energy nuclear physics; ultra-relativistic heavy ion collisions; cluster fusion; instrumentation; van de graaff accelerators and ion sources; and computer data acquisition systems. (LSP)

  11. Development of an in vitro laboratory manual for nuclear medicine technology students

    International Nuclear Information System (INIS)

    Meyers, A.

    1989-01-01

    This study evaluated existing in vitro education materials in qualitative and quantitative parameters that currently exist to educate potential clinicians of nationally accredited nuclear medicine programs. A review of over 300 articles, texts, and manuals pertaining to in vitro nuclear medicine procedures clearly demonstrated that no in vitro laboratory manual for undergraduate students presently exited. Every nuclear medicine program director in the United States was surveyed. They were asked for their overall philosophy in terms of developing an in vitro manual and requested to evaluate the significant of 22 general principles/concepts and 34 specific laboratory testing procedures. From the response to the survey, an in vitro nuclear medicine manual was created and appended to the study. The manual consists of lecture and study material, chapter reviews, and laboratory assignments and exercises

  12. The nuclear structure facility tandem at Daresbury laboratory

    International Nuclear Information System (INIS)

    Voss, R.G.P.

    1976-01-01

    A 30MV tandem electrostatic accelerator for ions of all types, including heavy ions, is being built at Daresbury Laboratory. Construction is well advanced, and considerable effort is continuing to be devoted to R and D programme into the technology of electrostatic accelerators

  13. Possibilities and limitations of analogue methods for studying the dynamics of nuclear power stations; Possibilites et limitations du calcul analogique pour les etudes dynamiques de centrales nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Caillet, C; Deat, M [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1958-07-01

    1. Introduction: the present paper is devoted to analog simulation of problems related to nuclear reactors other than the simulation of the kinetic equations which is well known. 2. Thermodynamic problems: various problems relative to temperature evolution in a reactor, in a pipe, in an exchanger, in a turbine, are studied, and simulation techniques used by earlier authors are critically reviewed. 3. Pipe simulators: it is shown that this problem can be solved by the use of specialized simulators which will be described and analysed. 4. Rotating machine simulators: the particular aspect of rotating machine calculations introducing frequent use of diagrams is emphasized. A simulator requiring both digital and analogue methods is described. 5. The study of a nuclear power station: as an example it is proposed to discuss problems a rising in connection with the preceding elements (a, b, c, d) when simulating the behaviour of large nuclear plants. The part played by ordinary computing elements for the simulation of the different servomechanism transfer functions is considered and process of regulation is outlined. 6. Conclusion: the necessity of the use of high quality simulators and computers is underlined and the accuracy of the solutions is discussed. (author)Fren. [French] 1. Cinetique des reacteurs: la simulation des equations cinetiques d'un reacteur nucleaire ne pose desormais plus de probleme. II est donc possible de faire le point des differentes applications de la technique analogique dans ce domaine. 2. Les problemes thermodynamiques: on discute les differents problemes poses par l'evolution des temperatures dans un reacteur, dans une tuyauterie, dans un echangeur, dans une turbine, et on passe en revue les techniques de simulation proposees jusqu'a ce jour. 3s simulateurs de tuyauteries: on montre comment les differents problemes poses ci-dessus peuvent etre resolus, pour une classe tres vaste de reacteurs par l'emploi de simulateurs speciaux que l

  14. Nuclear Plant Analyzer development at the Idaho National Engineering Laboratory

    International Nuclear Information System (INIS)

    Laats, E.T.; Beelman, R.J.; Charlton, T.R.; Hampton, N.L.; Burtt, J.D.

    1985-01-01

    The Nuclear Plant Analyzer (NPA) is a state-of-the-art safety analysis and engineering tool being used to address key nuclear power plant safety issues. The NPA has been developed to integrate the NRC's computerized reactor behavior simulation codes such as RELAP5, TRAC-BWR, and TRAC-PWR, with well-developed computer graphics programs and large repositories of reactor design and experimental data. An important feature of the NAP is the capability to allow an analyst to redirect a RELAP5 or TRAC calculation as it progresses through its simulated scenario. The analyst can have the same power plant control capabilities as the operator of an actual plant. The NPA resides on the dual CDS Cyber-176 mainframe computers at the INEL and is being converted to operate on a Cray-1S computer at the LANL. The subject of this paper is the program conducted at the INEL

  15. Handling and final disposal of nuclear waste. Hard Rock Laboratory

    International Nuclear Information System (INIS)

    1989-09-01

    The purpose of the Hard Rock Laboratory is to provide an opportunity for research and development in a realistic and undisturbed underground rock environment down to the depth planned for the future repository. The R and D work in the underground laboratory has the following main goals: To test the quality and appropriateness of different methods for characterizing the bedrock with respect to conditions of importance for a final repository. To refine and demonstrate methods for how to adapt a repository to the local properties of the rock in connection with planning and construction. And, finally, to collect material and data of importance for the safety of the future repository and for confidence in the quality of the safety assessments 13 figs, 3 tabs

  16. Assembly of laboratory line for nuclear fuel reprocessing

    International Nuclear Information System (INIS)

    Fidler, J.; Chotivka, V.

    1979-01-01

    The dismantling of a laboratory line for spent fuel reprocessing after the termination of the research programme and the procedures for hot and semi-hot cell decontamination are described. The equipment was mostly disassembled in smaller parts which were then decontaminated by wiping them with cotton wool soaked in detergent and citric acid, varnished with two-component epoxi varnish, wrapped into multiple polyethylene foils, sealed in PVC bags and thus ready for transport. (B.S.)

  17. Reliability research on nuclear I and C system at KAIST NIC laboratory

    International Nuclear Information System (INIS)

    Seong, Poong-Hyun

    1996-01-01

    As the use of computer systems becomes popular in nuclear industry, reliability assurance of digitized nuclear instrumentation and control systems is becoming one of hot issues. Some issues on this are S/W verification and validation, reliability estimation of digital systems, development strategy of high integrity knowledge base for expert systems, and so on. In order to address these issues, the Nuclear Instrumentation and Control (NIC) laboratory at KAIST is conducting some research projects. This paper describes some highlights of these research activities. The final goal of these research activities is to develop some useful methodologies and tools for development of dependable digital nuclear instrument and control systems. (author)

  18. Nuclear wastes: status and perspectives; Les Dechets nucleaires: etat des lieux et perspectives

    Energy Technology Data Exchange (ETDEWEB)

    Barre, B.; Bazile, F.; Bonin, B.; Marvy, A.; Ouzounian, G.; Wizsenfeld, B.

    2011-07-01

    Radioactive wastes are considered by the large public as a problem which mortgages the future of nuclear industry. Today, the main principles of radioactive wastes management are defined: separation, conditioning, storage and disposal are the main elements of a strategy allowing to protect the man and the environment from the impacts of the inevitable ultimate wastes. In a period of debate concerning the future of these wastes, this book aims at supplying to the public the elements which will allow him to build his own opinion about this hot topic. (J.S.)

  19. Licence prolongations of US nuclear power plants; Les prolongations de licence des centrales nucleaires americaines

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-04-01

    Licences of US nuclear reactors were initially attributed for a 40 years duration. However, the vast majority of the reactors can benefit of a licence prolongation for a period of 20 years maximum. This article recalls first the procedure to follow for the licence prolongation demands (safety analysis, components aging, environmental impact statement), and then it makes a status of the accepted prolongations, of the demands under examination, and of the demands that should be presented in the next 5 years. (J.S.)

  20. Progress report 1986. Laboratory of high energy nuclear physics

    International Nuclear Information System (INIS)

    1987-01-01

    A study of hadron structure using neutrino interactions; high energy photon interactions; a search for gluinos; a spectrometer for the study of quark fusion and structure functions; measurement of the real part of the pp - scattering amplitude at 546 GeV; measurement of photon production in the fragmentation region of pp - interactions at 630 GeV; investigation of very high energy nucleus-nucleus interactions: the quagma; an experience on nucleon stability; as well as high energy nuclear physics research facilities are described [fr

  1. Studies of nuclear processes at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1994--31 August 1995

    International Nuclear Information System (INIS)

    Ludwig, E.J.

    1995-01-01

    The Triangle Universities Nuclear Laboratory (TUNL)--a collaboration of Duke University, North Carolina State University, and the University of North Carolina at Chapel Hill--has had a very productive year. This report covers the second year of a three-year grant between the US Department of Energy and the three collaborating universities. The TUNL research program focuses on the following areas of nuclear physics: parity violation in neutron and charged-particle resonances--the mass and energy dependence of the weak interaction spreading width; chaotic behavior in 30 P from studies of eigenvalue fluctuations in nuclear level schemes; studies of few-body systems; nuclear astrophysics; nuclear data evaluation for A = 3--20, for which TUNL is now the international center; high-spin spectroscopy and superdeformation in nuclei, involving collaborations at Argonne National Laboratory. Developments in technology and instrumentation have been vital to the research and training program. In this progress report the author describes: a proposed polarized γ-beam facility at the Duke Free Electron Laser Laboratory; cryogenic systems and microcalorimeter development; continuing development of the Low Energy Beam Facility. The research summaries presented in this progress report are preliminary

  2. Studies of nuclear processes at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1994--31 August 1995

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, E.J.

    1995-09-01

    The Triangle Universities Nuclear Laboratory (TUNL)--a collaboration of Duke University, North Carolina State University, and the University of North Carolina at Chapel Hill--has had a very productive year. This report covers the second year of a three-year grant between the US Department of Energy and the three collaborating universities. The TUNL research program focuses on the following areas of nuclear physics: parity violation in neutron and charged-particle resonances--the mass and energy dependence of the weak interaction spreading width; chaotic behavior in {sup 30}P from studies of eigenvalue fluctuations in nuclear level schemes; studies of few-body systems; nuclear astrophysics; nuclear data evaluation for A = 3--20, for which TUNL is now the international center; high-spin spectroscopy and superdeformation in nuclei, involving collaborations at Argonne National Laboratory. Developments in technology and instrumentation have been vital to the research and training program. In this progress report the author describes: a proposed polarized {gamma}-beam facility at the Duke Free Electron Laser Laboratory; cryogenic systems and microcalorimeter development; continuing development of the Low Energy Beam Facility. The research summaries presented in this progress report are preliminary.

  3. Cancer and workers' compensation at Chalk River nuclear laboratories

    International Nuclear Information System (INIS)

    Evans, D.W.S.

    1985-01-01

    This paper describes the circumstances leading to the notification to the Worker's Compensation Board of Ontario of two cases of cancer, both involving the lymphatic and haematoporetic systems, in employees at Chalk River Nulcear Laboratories. Twenty of these neoplasms are known to have occurred in the CRNL population between 1966 and 1983. The leukemia/lymphoma ratio observed in the twenty neoplasms is similar to that found in populations not occupationally exposed to ionizing radiation. The possible relationship between asbestos exposure and lymphoid neoplasms was discussed. 5 refs

  4. Gaerttner LINAC Laboratory report on international nuclear data measurements

    International Nuclear Information System (INIS)

    Mesh, D.W.; Block, R.C.

    1999-04-01

    The Gaerttner LINAC Laboratory has made neutron transmission and capture measurements up to several hundred eV on samples of Zr, Nb, Mo, Sm, Nd, Ho, Er, Tm, Hf, and W. A new neutron time-of-flight target has been built and installed and a new 6 Li glass transmission detector is under construction. The electron linear accelerator is being refurbished with new klystrons, a new RF transport system and the reinstallation of the ninth accelerating section. These improvements are intended to provide a more powerful and monoenergetic electron beam

  5. Nuclear and related techniques in parasitology: A laboratory manual

    Energy Technology Data Exchange (ETDEWEB)

    Hayunga, E.G.; Stek, M. Jr. (eds.)

    1986-01-01

    The course, entitled ''Atomic Energy Applications in Parasitology'', was offered by the Division of Tropical Public Health, Department of Preventive Medicine, and Biometrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland. It was an intensive 3-week endeavor during which students attended lectures and acquired practical hands-on experience with the most recent laboratory tools. The course began with an exhaustive introduction to radiation physics, then encompassed a variety of practical applications including irradiation attenuation, radioisotope labeling, tracer techniques and radioimmunoassays. This laboratory manual was written by the faculty in an attempt to document the learning experience of the training course and to provide a detailed description of state-of-the-art technology with up-to-date references. Clearly, the manual has value as a historical document. However, the chapters were written with the explicit intention that they be useful to future investigators who wish to apply these methods to their particular research problem.

  6. The puzzling problem of nuclear materials and wastes - Les Cahiers de Global Chance Nr 34

    International Nuclear Information System (INIS)

    Dessus, Benjamin; Malisan, Philippe; Hippel, Frank von; Mac Kerron, Gordon; Zerbib, Jean-Claude; Guillemette, Andre; Janberg, Klaus; Schneider, Mycle; Thuillier, Bertrand

    2013-11-01

    A first set of contributions to this publication discusses the role of plutonium, energy resource or world burden. The authors address the following topics: plutonium and MOX fuel; international overview of the nature and origin of the plutonium deadlock and options to get out of it; the failure of the plutonium industry in the UK; assessments 2011 of radiotoxicity and thermal assessments, production and storages of EDF's MOX fuels; giving up reprocessing and dry warehousing-disposal in containers according to the German approach; the challenges not faced by the French strategy regarding plutonium. Then, two articles address the CIGEO project: one about the types and quantities of high activity nuclear wastes which can be stored in deep geological deposit in France, and a second about the feasibility of the CIGEO project

  7. Triangle Universities Nuclear Laboratory. Annual report, 1 September 1981-1 October 1982

    International Nuclear Information System (INIS)

    Seagondollar, L.W.

    1982-01-01

    The varied research programs described reflect a decision by TUNL to devote its major resources to the study of the multiple facets of nuclear structure which can be probed through light ion induced nuclear reactions. Particular emphasis is placed on reactions induced by polarized protons, deuterons, and neutrons. We also continue a major commitment to the study of the statistical properties of nuclear structure revealed by elastic and inelastic scattering experiments using ultra high resolution beams. A third major laboratory commitment involves measurements of fast neutron cross sections required by the Department of Energy's program to produce controlled thermonuclear fusion. The major accelerator facilities of the laboratory include a model FN tandem Van de Graaff accelerator and a 15 MeV fixed energy negative ion cyclotron injector. The laboratory has two additional single ended Van de Graaff accelerators with terminal energies of 4 MV and 3 MV, respectively

  8. Los Alamos National Laboratory Human and Intellectual Capital for Sustaining Nuclear Deterrence

    Energy Technology Data Exchange (ETDEWEB)

    McAlpine, Bradley [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-04-01

    This paper provides an overview of the current human and intellectual capital at Los Alamos National Laboratory, through specific research into the statistics and demographics as well as numerous personal interviews at all levels of personnel. Based on this information, a series of recommendations are provided to assist Los Alamos National Laboratory in ensuring the future of the human and intellectual capital for the nuclear deterrence mission. While the current human and intellectual capital is strong it stands on the precipice and action must be taken to ensure Los Alamos National Laboratory maintains leadership in developing and sustaining national nuclear capabilities. These recommendations may be applicable to other areas of the nuclear enterprise, including the Air Force, after further research and study.

  9. Annual report of Nuclear Engineering Research Laboratory, University of Tokyo in fiscal 1992

    International Nuclear Information System (INIS)

    1993-07-01

    In this annual report, the activities of education and research, the state of operation of research facilities and others in Nuclear Engineering Research Laboratory, University of Tokyo in fiscal year 1992 are summarized. In this Laboratory, there are four large research facilities, that are, the fast neutron source reactor 'Yayoi', the electron beam linac, the nuclear fusion reactor blanket experiment facility and the heavy irradiation research facility. Those are used for carrying out education and research in the wide fields of nuclear engineering, and are offered also for joint utilization. The results of research by using respective research facilities have been summarized in separate reports. The course of the management and operation of each research facility is described, and the research activities, the theses for doctorate and graduation these of teachers, personnel and graduate students in the Laboratory are summarized. (J.P.N.)

  10. Los Alamos National Laboratory Human and Intellectual Capital for Sustaining Nuclear Deterrence

    International Nuclear Information System (INIS)

    McAlpine, Bradley

    2015-01-01

    This paper provides an overview of the current human and intellectual capital at Los Alamos National Laboratory, through specific research into the statistics and demographics as well as numerous personal interviews at all levels of personnel. Based on this information, a series of recommendations are provided to assist Los Alamos National Laboratory in ensuring the future of the human and intellectual capital for the nuclear deterrence mission. While the current human and intellectual capital is strong it stands on the precipice and action must be taken to ensure Los Alamos National Laboratory maintains leadership in developing and sustaining national nuclear capabilities. These recommendations may be applicable to other areas of the nuclear enterprise, including the Air Force, after further research and study.

  11. Contribution to the Study of Nuclear Magnetic Resonance in Ferromagnets; Contribution a l'etude de la resonance nucleaire dans les corps ferromagnetiques

    Energy Technology Data Exchange (ETDEWEB)

    Robert, C. [Commissariat a l' Energie Atomique, Centre d' Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)

    1962-07-01

    Properties of nuclear magnetic resonance in the field acting on the nucleus in a ferromagnet were studied. Nuclei were {sup 57}Fe in iron and yttrium iron garnet. Static properties of resonance (frequency, line-width, dipolar structure) were investigated and compared with magnetic behavior and magnetic structure of the materials. Relaxation in garnet points out importance of long range fluctuations induced by impurities in a ferromagnetic lattice. (author) [French] Nous avons etudie les proprietes de la resonance nucleaire dans le champ existant a remplacement d'un noyau dans un corps ferromagnetique (champ local). Les noyaux etaient ceux de {sup 57}Fe dans le fer et dans le grenat d'yttrium et de fer. Les proprietes statiques de la resonance (frequence de resonance, largeur de la raie, structures dues a l'interaction dipolaire) ont ete etudiees et reliees aux caracteristiques magnetiques et a la structure de ces corps. La relaxation dans le grenat a mis en evidence les fluctuations a longue distance induites par des impuretes dans un reseau ferromagnetique. (auteur)

  12. Contribution to the Study of Nuclear Magnetic Resonance in Ferromagnets; Contribution a l'etude de la resonance nucleaire dans les corps ferromagnetiques

    Energy Technology Data Exchange (ETDEWEB)

    Robert, C [Commissariat a l' Energie Atomique, Centre d' Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)

    1962-07-01

    Properties of nuclear magnetic resonance in the field acting on the nucleus in a ferromagnet were studied. Nuclei were {sup 57}Fe in iron and yttrium iron garnet. Static properties of resonance (frequency, line-width, dipolar structure) were investigated and compared with magnetic behavior and magnetic structure of the materials. Relaxation in garnet points out importance of long range fluctuations induced by impurities in a ferromagnetic lattice. (author) [French] Nous avons etudie les proprietes de la resonance nucleaire dans le champ existant a remplacement d'un noyau dans un corps ferromagnetique (champ local). Les noyaux etaient ceux de {sup 57}Fe dans le fer et dans le grenat d'yttrium et de fer. Les proprietes statiques de la resonance (frequence de resonance, largeur de la raie, structures dues a l'interaction dipolaire) ont ete etudiees et reliees aux caracteristiques magnetiques et a la structure de ces corps. La relaxation dans le grenat a mis en evidence les fluctuations a longue distance induites par des impuretes dans un reseau ferromagnetique. (auteur)

  13. Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA

    Directory of Open Access Journals (Sweden)

    Liu WeiPing

    2016-01-01

    Full Text Available Jinping Underground lab for Nuclear Astrophysics (JUNA will take the advantage of the ultralow background in Jinping underground lab, high current accelerator based on an ECR source and highly sensitive detector to study directly a number of crucial reactions to the hydrostatic stellar evolution for the first time at their relevant stellar energies. In its first phase, JUNA aims at the direct measurements of 25Mg(p,γ26Al, 19F(p,α16O, 13C(α,n16O and 12C(α,γ16O. The experimental setup, which include the accelerator system with high stability and high intensity, the detector system, and the shielding material with low background, will be established during the above research. The current progress of JUNA will be given.

  14. Fire protection in laboratories and factories. Guide for nuclear operator

    International Nuclear Information System (INIS)

    Savornin, J.; Hebrard, L.; Michard, J.; Muller, G.; Vasseur, C.

    1987-12-01

    Putting in place a nuclear industry is possible only if is taken into account the systematic risks connecting with the manipulation of radioactive matters. The measures taken are essentially the putting in place of static or dynamic barriers confinement. Therefore in case of fire their efficiencies can be reduced. The basic safety rule no. I-4.a serie U defines the objectives but do not give all the means to arrive. The present guide has for objective to propose the means which allow to satisfy these objectives. It permits to define the importance of precautions to take in terms of possible consequences. This document is not a rule. It has for objective to give advices [fr

  15. Standard guide for establishing a quality assurance program for analytical chemistry laboratories within the nuclear industry

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2006-01-01

    1.1 This guide covers the establishment of a quality assurance (QA) program for analytical chemistry laboratories within the nuclear industry. Reference to key elements of ANSI/ISO/ASQC Q9001, Quality Systems, provides guidance to the functional aspects of analytical laboratory operation. When implemented as recommended, the practices presented in this guide will provide a comprehensive QA program for the laboratory. The practices are grouped by functions, which constitute the basic elements of a laboratory QA program. 1.2 The essential, basic elements of a laboratory QA program appear in the following order: Section Organization 5 Quality Assurance Program 6 Training and Qualification 7 Procedures 8 Laboratory Records 9 Control of Records 10 Control of Procurement 11 Control of Measuring Equipment and Materials 12 Control of Measurements 13 Deficiencies and Corrective Actions 14

  16. Building an integrated nuclear engineering and nuclear science human resources pipeline at the Idaho National Engineering and Environmental Laboratory

    International Nuclear Information System (INIS)

    Sneed, A.; Sikorski, B.; Lineberry, M.; Jolly, J.

    2004-01-01

    Full text: In 2002, the US Department of Energy (US DOE) transferred sponsorship of the INEEL and ANL-W to the DOE Office of Nuclear Energy, Science and Technology and designated the INEEL and ANL-W as the nation's lead laboratories for nuclear reactor and nuclear fuel cycle research and development. This transfer acknowledged the laboratories' history, infrastructure, expertise and commitment to collaborate broadly in order to fulfill its assigned role as the nation's center for nuclear energy research and development. Key to this role is the availability of well-educated and trained nuclear engineers, professionals from other disciplines of engineering, nuclear scientists, and others with advanced degrees in supporting disciplines such as physics, chemistry, and math. In 2005 the INEEL and ANL-W will be combined into the Idaho National Laboratory (INL). One of US DOE's objectives for the INL will be for it to take a strong role in the revitalization of nuclear engineering and nuclear science education in the US. Responding to this objective for the INL and the national need to rejuvenate nuclear engineering and nuclear science research and education, ISU, University of Idaho (UI), Boise State University, the INEEL, and ANL-W are all supporting a new Institute of Nuclear Science and Engineering (INSE), initially proposed by and to be administered by ISU. The Institute will rely on the resources of both universities and the INL to create a US center for reactor and fuel cycle research to development and attract outstanding faculty and students to Idaho and to the INL. The Institute and other university based education development efforts represent only one component of a viable Human Resources Pipeline from university to leading edge laboratory researcher. Another critical component is the successful integration of new graduates into the laboratory research environment, the transfer of knowledge from senior researchers, and the development of these individuals into

  17. Radioactive waste management research at CEGB Berkeley nuclear laboratories

    International Nuclear Information System (INIS)

    Bradbury, D.

    1988-01-01

    The CEGB is the major electric utility in the United Kingdom. This paper discusses how, at the research laboratories at Berkeley (BNL), several programs of work are currently taking place in the radioactive waste management area. The theme running through all this work is the safe isolation of radionuclides from the environment. Normally this means disposal of waste in solid form, but it may also be desirable to segregate and release nonradioactive material from the waste to reduce volume or improve the solid waste characteristics (e.g., the release of liquid or gaseous effluents after treatment to convert the radioactivity to solid form). The fuel cycle and radioactive waste section at BNL has a research program into these aspects for wastes arising from the operation or decommissioning of power stations. The work is done both in-house and on contract, with primarily the UKAEA

  18. Research opportunities in a reactor-based nuclear analytical laboratory

    International Nuclear Information System (INIS)

    Robinson, L.; Brown, D.H.

    1994-01-01

    Although considered by many to be a open-quotes matureclose quotes science, neutron activation analysis (NAA) continues to be a valuable elemental analysis tool. Examples of the applicability of NAA can be found in a variety of areas including archaeology, environmental science, epidemiology, forensic science, and materials science to name a few. The major components of neutron activation are sample preparation, irradiation, counting, and data analysis. Each one of these stages provides opportunities to share numerous practical and fundamental scientific principles with high school teachers. This paper presents an overview of these opportunities. In addition, a specific example of the collaboration with a high school teacher whose research involved the automation of a gamma-ray spectroscopy counting system using a laboratory robot is discussed

  19. Secondary standard dosimetry laboratory Saraykoy Nuclear Research and Training Center Ankara, Turkey

    International Nuclear Information System (INIS)

    Okruhlica, P.

    2014-01-01

    Turkish Saraykoy Nuclear Research and Training Center (SANA) was founded in 2005. In 2014 the company PTW Freiburg in cooperation with VF Cerna Hora started the construction of a comprehensive national metrology laboratories of ionizing radiation 'Secondary Standard Dosimetry Laboratory' (SSDL). The laboratory will be located in the area of 'Saraykoy Nuclear Research and Training Center' in Ankara in Turkey. SSDL will be equipped with metrology departments for calibration and measurement of standard required quantities of metrology of ionizing radiation: - Neutron workplace; Gamma workplace (low-energy X-ray, gamma Standard Cs-137 and high dose rate, Co-60); - Beta workplace; - Control system of metrology laboratories and irradiation VF DARS; - Radiation monitoring system VF RMS; - Camera and security system; - Measuring instruments (ionization chambers, electrometers, monitors for environmental measurements ...) with the appropriate phantoms and other systems.

  20. In-situ measurement of environment radioactivity by mobile nuclear field laboratory (MNFL)

    International Nuclear Information System (INIS)

    Gopalani, Deepak; Mathur, A.P.; Rawat, D.K.; Barala, S.S.; Singhal, K.P.; Singh, G.P.; Samant, R.P.

    2008-01-01

    In-situ measurement of environment radioactivity is useful tool for determine the unusual increase of radioactivity at any place due to any nuclear eventuality take place. A mobile nuclear field laboratory has been designed and developed for in-situ measurement of environment radioactivity at any desired location. This vehicle is equipped with different monitoring and analysis instruments. These equipment can be operated while vehicle is moving. The measured data can be stored in computer. This vehicle has the space for storage of various environmental matrices of affected area and these can analysis in laboratory. (author)

  1. Modernization of physical protection educational laboratories in the National Research Nuclear University MEPhI

    Science.gov (United States)

    Geraskin, N. I.; Krasnoborodko, A. A.

    2017-01-01

    Non-proliferation of nuclear materials includes, in addition to accounting and control, the Physical Protection (PP) of one. The paper considers the experience by MEPhI in application the practical educational in the area of PP technical systems. The following aspects are discussed in the paper: specific features graduate program in nuclear security area; overview of the practical course curricula in the special laboratory.

  2. Laboratory training manual on the use of nuclear techniques in pesticide research

    International Nuclear Information System (INIS)

    1983-01-01

    This is a laboratory training manual on the use of nuclear techniques, and in particular radioisotopes in pesticide research. It is designed to give the scientists involved in pesticide research the basic terms and principles for understanding ionizing radiation: detection and measurement its hazards and safety measures, and some of the more common applications. Laboratory exercises representing the types of experiments that are valuable in pesticide research programmes and field tests which demonstrate the use of radiolabelled pesticides are included

  3. Radio-protection problems presented by iodine isotopes in nuclear fuel chemical treatment plants (1962); Les problemes de radioprotection poses par les isotopes de l'iode dans les installations de traitement chimique des combustibles (1962)

    Energy Technology Data Exchange (ETDEWEB)

    Bouzigues, H; Scheidhauer, J; Messainguiral, L [Commissariat a l' Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d' Etudes Nucleaires

    1962-07-01

    The origin of radio-iodine and the conditions in which it is liberated are given. The authors review the question of the risks associated with the presence of this radioelement In the atmosphere. Finally a method is proposed for the trapping and rapid measuring of the iodine in the vapour form, applicable to radioprotection. (authors) [French] L'origine et les conditions de liberation du radioiode sont exposees. Les auteurs font le point de la question des risques associes a la presence de ce radioelement dans l'atmosphere. Enfin, une methode de piegeage et de mesure rapide de l'iode a l'etat de vapeur applicable a la radioprotection, est proposee. (auteurs)

  4. Establishment of a clean laboratory for ultra trace analysis of nuclear materials in safeguards environmental samples

    International Nuclear Information System (INIS)

    Hanzawa, Yukiko; Magara, Masaaki; Watanabe, Kazuo

    2003-01-01

    The Japan Atomic Energy Research Institute has established a cleanroom facility with cleanliness of ISO Class 5: the Clean Laboratory for Environmental Analysis and Research (CLEAR). It was designed to be used for the analysis of nuclear materials in environmental samples mainly for the safeguards, in addition to the Comprehensive Nuclear-Test-Ban Treaty verification and research on environmental sciences. The CLEAR facility was designed to meet conflicting requirements of a cleanroom and for handling of nuclear materials according to Japanese regulations, i.e., to avoid contamination from outside and to contain nuclear materials inside the facility. This facility has been intended to be used for wet chemical treatment, instrumental analysis and particle handling. A fume-hood to provide a clean work surface for handling of nuclear materials was specially designed. Much attention was paid to the selection of construction materials for use to corrosive acids. The performance of the cleanroom and analytical background in the laboratory are discussed. This facility has satisfactory specification required for joining the International Atomic Energy Agency Network of Analytical Laboratories. It can be concluded that the CLEAR facility enables analysis of ultra trace amounts of nuclear materials at sub-pictogram level in environmental samples. (author)

  5. Building an integrated nuclear engineering and nuclear science human resources pipeline at the Idaho National Engineering and Environmental Laboratory

    International Nuclear Information System (INIS)

    Sneed, A.; Sikorski, B.; Lineberry, M.; Jolly, J.

    2004-01-01

    In a joint effort with the Argonne National Laboratory - West (ANL-W), the Idaho National Engineering and Environmental Laboratory (INEEL) has assumed the lead role for nuclear energy reactor research for the United States Government. In 2005, these two laboratories will be combined into one entity, the Idaho National Laboratory (INL). There are two objectives for the INL: (1) to act as the lead systems integrator for the Department of Energy's Office of Nuclear Energy Science and Technology and, (2) to establish a Center for Advanced Energy Studies. Focusing on the Center for Advanced Energy Studies, this paper presents a Human Resources Pipeline Model outlining a nuclear educational pathway that leads to university and industry research partnerships. The pathway progresses from education to employment and into retirement. Key to the model is research and mentoring and their impact upon each stage. The Center's success will be the result of effective and advanced communications, faculty/student involvement, industry support, inclusive broadbased involvement, effective long-term partnering, and increased federal and state support. (author)

  6. Testing times: A nuclear weapons laboratory at the end of the Cold War

    International Nuclear Information System (INIS)

    Gusterson, H.

    1992-01-01

    This dissertation focuses on the role of discursive and other practices in the construction of two alternative regimes of truth in regard to nuclear weapons, and in the cultural production of persons at the Livermore Laboratory and in the local anti-nuclear movement. In the 1980s the scientists' regime of truth was challenged by a heterogeneous anti-nuclear movement recruited largely from the humanistic middle class - a class fragment profoundly hostile to the policies of the Reagan Administration. The movement attacked the Laboratory in a number of ways, ranging from local ballot initiatives and lobbying in Washington to civil disobedience at the Laboratory. By the end of the 1980s this movement, in combination with Gorbachev's reforms in the Soviet Union and a decade of internal scandals at the Laboratory, left the Laboratory weakened - though Laboratory scientists and managers are currently working to adapt the system of ideas and practices evolved during the Cold War to legitimate continued weapons work in a post-Cold War environment

  7. Particles identification using nuclear emulsion in OPERA; Identification des particules par les emulsions nucleaires dans OPERA

    Energy Technology Data Exchange (ETDEWEB)

    Manai, K

    2007-10-15

    The Opera experiment will try to confirm the {nu}{sub {mu}} {yields} {nu}{sub {tau}} oscillations by the appearance of the {nu}{sub {tau}} in a pure {nu}{sub {mu}} beam. Indeed, a neutrino beam almost pure is produced at CERN (CNGS Beam) and sent to the Opera detector. The detector is composed of two muons spectrometers and a target formed by walls of bricks. Each brick is an alternation of lead plates and emulsions. This modular structure allows to reconstruct the kink topology of the {tau} lepton decay with a high spatial resolution. The great challenge of the Opera experiment is to detect the {nu}{sub {tau}} interactions with the less uncertainty. To reduce this uncertainty it is essential to identify with the greatest efficiency any background event not including a tau particle. My work permits to reduce background. My principal contribution concerns the selection development, the reconstruction and the muons identification at low energy. This work is based on the setting of variables related to the deposit energy and the multiple scattering. Previously, only deposit energy was used in the analyses of pion/muon separation. This study allows doubling the muon identification efficiency at low energy. This leads to increase the background events rejection in Opera and to decrease the contamination by 30%. I also studied the nuclear emulsions capacity to identify charged particles through the analysis of a test beam carried out by the Nagoya group. This test contains protons and pions with different energies. My work proves that the European scan system gives comparable results with those obtained by the Japanese scan system. (author)

  8. Dismantling of nuclear facilities: the industrial know-how; Demantelement des installations nucleaires: les voies de la maitrise industrielle

    Energy Technology Data Exchange (ETDEWEB)

    Lellament, R. [Societe Francaise d' Energie Nucleaire (SFEN), Groupe de Reflexion Energie/Environnement, 75 - Paris (France)

    2004-11-01

    Numerous nuclear facilities in laboratories or research reactors have been decommissioned and dismantled over the 2 last decades throughout the world. The valuable feedback experience has allowed nuclear industry to design, upgrade and test specific techniques for dismantling. These techniques are efficient although they have been validated on a reduced number of nuclear power plants. In France only 3 power units have been dismantled: Chinon A1, A2 and Brennilis (EL4) and they are not representative of the real park of EDF'reactors. 6 PWR-type reactors have already been dismantled in the Usa. The results of a survey concerning 26 countries shows that the dismantling cost is around 320 dollars/kWe, it represents 15% of the construction cost which is far from being excessive as it is often read in the media. The dismantling costs can be broken into: - de-construction (25-55%), - wastes from dismantling (17-43%), - security and monitoring (8-13%), - site reclamation (5-13%), and - engineering and project management (5-24%). (A.C.)

  9. Triangle Universities Nuclear Laboratory: Annual report, TUNL XXV, 1 September 1985-31 August 1986

    International Nuclear Information System (INIS)

    1986-01-01

    The varied research programs described in this report reflect a decision to devote major resources to the study of the multiple facets of nuclear structure which can be probed through light-ion and neutron induced nuclear reactions. Particular emphasis is placed on reactions induced by polarized protons, deuterons, and neutrons. A major commitment continues towards the study of the statistical properties of nuclear structure revealed by elastic and inelastic scattering experiments using ultra high resolution proton beams. A third major laboratory commitment involves measurements of fast neutron cross sections required by the Department of Energy's program for the development of controlled thermonuclear fusion

  10. Some problems on the aqueous corrosion of structural materials in nuclear engineering; Problemes de corrosion aqueuse de materiaux de structure dans les constructions nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Coriou, H; Grall, L [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1964-07-01

    The purpose of this report is to give a comprehensive view of some aqueous corrosion studies which have been carried out with various materials for utilization either in nuclear reactors or in irradiated fuel treatment plants. The various subjects are listed below. Austenitic Fe-Ni-Cr alloys: the behaviour of austenitic Fe-Ni-Cr alloys in nitric medium and in the presence of hexavalent chromium; the stress corrosion of austenitic alloys in alkaline media at high temperatures; the stress corrosion of austenitic Fe-Ni-Cr alloys in 650 C steam. Ferritic steels: corrosion of low alloy steels in water at 25 and 360 C; zirconium alloys; the behaviour of ultrapure zirconium in water and steam at high temperature. (authors) [French] On presente un ensemble d'etudes de corrosion en milieu aqueux effectuees sur des materiaux utilises, soit dans la construction des reacteurs soit pour la realisation des usines de traitement des combustibles irradies. Les differents sujets etudies sont les suivants. Les alliages austenitiques Fer-Nickel-Chrome: comportement d'alliages austenitiques fer-nickel-chrome en milieu nitrique en presence de chrome hexavalent; Corrosion sous contrainte d'alliages austenitiques dans les milieux alcalins a haute temperature; Corrosion sous contrainte dans la vapeur a 650 C d'alliages austenitiques fer-nickel-chrome. Les aciers ferritiques; Corrosion d'aciers faiblement allies dans l'eau a 25 et 360 C; le zirconium et ses alliages; Comportement du zirconium tres pur dans l'eau et la vapeur a haute temperature. (auteurs)

  11. Annual report of Nuclear Engineering Research Laboratory, University of Tokyo in fiscal 1989

    International Nuclear Information System (INIS)

    1990-01-01

    This report summerizes the research and educational activities at the Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo. The Laboratory holds four main facilities, which are Yayoi reactor, an electron accelerator, fusion blanket research facility, and heavy ion irradiation research facility. And they are open to the researchers both inside and outside the University. The application of the facilities are described. The activities and achievements of the Laboratory staffs, and theses for graduate, master, and doctor degrees are also summerized. (J.P.N.)

  12. Research and service capabilities of the National Nuclear Forensic Research Laboratory

    International Nuclear Information System (INIS)

    Romero G, E. T.; Hernandez M, H.; Flores C, J.; Paredes G, L. C.

    2016-09-01

    According to the recommendations of the International Atomic Energy Agency, Mexico is taking steps to combat illicit trafficking in nuclear material. The creation of a National Nuclear Forensic Research Laboratory (Lanafonu, acronym in Spanish) has been assigned to the Instituto Nacional de Investigaciones Nucleares (ININ, Mexico) in 2014. The objectives of this Laboratory are: to combat illicit trafficking in nuclear materials, to optimize scientific processes and techniques used to analyze nuclear materials (orphans or radioactive sources), environmental and potential biological sources as a result of the handling, transport and final storage. At present, the Lanafonu facilities are focused on the optimization of emergency and routine protocols for measuring radioisotopes in environmental and biological samples using inductive coupling mass spectrometer with magnetic sector. The main activities are: i) optimization of the methods for measuring the isotopes of Pu by alpha-spectrometry, Icp-SFMS and AMS (accelerator mass spectrometry), ii) development or radiochemical methods for routine situations and nuclear emergencies, iii) participation in the scientific technical commission on nuclear forensic science, iv) participation in international intercomparison exercises to optimize and validate methods, and v) consolidation of Lanafonu in Mexico and the IAEA. (Author)

  13. Annual report of Radiation Laboratory Department of Nuclear Engineering Kyoto University for fiscal 1993

    International Nuclear Information System (INIS)

    1994-07-01

    This publication is the collection of the papers presented research activities of Radiation Laboratory, Department of Nuclear Engineering, Kyoto University during the 1993 academic/fiscal year (April, 1993 - March, 1994). The 47 of the presented papers are indexed individually. (J.P.N.)

  14. Radiation chemistry in the nuclear power reactor environment: from laboratory study to practical application

    International Nuclear Information System (INIS)

    Stuart, C.R.

    1999-01-01

    This paper discusses the work carried out at the Chalk River Nuclear Laboratories in underlying and applied radiation chemical research performed to optimise the processes occurring in the four aqueous systems in and around the core. The aqueous systems subject to radiolysis in CANDU reactors are Heat Transport System, Moderator, Liquid Zone Controls and End Shields.

  15. Implementation of a communication and control network for the instruments of a nuclear analytical laboratory

    International Nuclear Information System (INIS)

    Cunya, Eduardo; Baltuano, Oscar; Bedregal, Patricia

    2013-01-01

    This paper describes the implementation of a communication network and control for a conventional laboratory instruments and nuclear analytical processes based on CAN open field bus to control devices and machines. Hardware components and software developed as well as installation and configuration tools for incorporating new instruments to the network re presented. (authors).

  16. Education and research at the Ohio State University nuclear reactor laboratory

    International Nuclear Information System (INIS)

    Miller, D.W.; Myser, R.D.; Talnagi, J.W.

    1989-01-01

    The educational and research activities at the Ohio State University Nuclear Reactor Laboratory (OSUNRL) are discussed in this paper. A brief description of an OSUNRL facility improvement program and its expected impact on research is presented. The overall long-term goal of the OSUNRL is to support the comprehensive education, research, and service mission of OSU

  17. Annual report of Radiation Laboratory Department of Nuclear Engineering Faculty of Engineering, Kyoto University

    International Nuclear Information System (INIS)

    1993-07-01

    This publication is the collection of the papers presented research activities of Radiation laboratory, Department of Nuclear Engineering, Kyoto University during the 1992 academic/fiscal year (April, 1992 - March, 1993). The 48 of the presented papers are indexed individually. (J.P.N.)

  18. Heating- and growing-degree days at Chalk River Nuclear Laboratories, 1976-1980

    International Nuclear Information System (INIS)

    Jay, P.C.; Wildsmith, D.P.

    1981-05-01

    An update of the report, Heating- and Growing-Degree-Days at Chalk River Nuclear Laboratories (AECL-5547) is presented along with various other meteorological variables which were not included in the previous publication. Also included, and shown in graph form, are the monthly degree-day frequencies. (author)

  19. Avaliação da função e da lesão renal: um desafio laboratorial Evaluation of renal function and damage: a laboratorial challenge

    Directory of Open Access Journals (Sweden)

    Fábio L. Sodré

    2007-10-01

    Full Text Available Atualmente a doença renal é um grande problema de saúde pública, que acomete milhares de pessoas no Brasil e no mundo. O estudo da função e dos diversos processos patológicos renais tem despertado o interesse de muitos pesquisadores, principalmente no campo do desenvolvimento de testes que auxiliem os médicos a estabelecer um diagnóstico precoce, classificar a doença de base, obter prognóstico seguro e monitorar terapêutica medicamentosa. Neste artigo sete marcadores de função e de lesão renal são avaliados: uréia, creatinina, cistatina C, proteinúria, dismorfismo eritrocitário, microalbuminúria e fração hepática das proteínas ligadas a ácidos graxos. É apresentado um breve histórico da utilização clínica e da fisiopatologia de cada um deles, seguidas de sua aplicabilidade e dos avanços técnicos e metodológicos disponíveis. Apesar de melhorias terem sido conseguidas e incorporadas à prática laboratorial, nenhum marcador atualmente disponível é completamente eficaz em analisar a função e/ou a lesão renal de forma precisa, sendo imprescindível o conhecimento de todos eles para uma correta avaliação desses testes comuns na rotina laboratorial.Nowadays, renal disease is an important public health problem, affecting millions of people in Brazil and in the world. The study of renal function and renal pathologic processes has aroused the interest of researchers, mainly in the field of development of new assays that could aid physicians in establishing early diagnosis, better classifying the disease, obtaining better outcome and monitoring drug therapeutics. In this article, seven laboratory markers of renal function or damage are evaluated: urea, creatinine, cystatin C, proteinuria, dysmorphic erythrocytes, microalbuminuria and liver-type fatty acid binding protein (L-FABP. For each one of them, a short historical report of its clinical utility and physiopathology is presented. Then technical and

  20. The Legnaro National Laboratories and the SPES facility: nuclear structure and reactions today and tomorrow

    Science.gov (United States)

    de Angelis, Giacomo; Fiorentini, Gianni

    2016-11-01

    There is a very long tradition of studying nuclear structure and reactions at the Legnaro National Laboratories (LNL) of the Istituto Nazionale di Fisica Nucleare (Italian Institute of Nuclear Physics). The wide expertise acquired in building and running large germanium arrays has made the laboratories one of the most advanced research centers in γ-ray spectroscopy. The ’gamma group’ has been deeply involved in all the national and international developments of the last 20 years and is currently one of the major contributors to the AGATA project, the first (together with its American counterpart GRETINA) γ-detector array based on γ-ray tracking. This line of research is expected to be strongly boosted by the coming into operation of the SPES radioactive ion beam project, currently under construction at LNL. In this report, written on the occasion of the 40th anniversary of the Nobel prize awarded to Aage Bohr, Ben R Mottelson and Leo Rainwater and particularly focused on the physics of nuclear structure, we intend to summarize the different lines of research that have guided nuclear structure and reaction research at LNL in the last decades. The results achieved have paved the way for the present SPES facility, a new laboratories infrastructure producing and accelerating radioactive ion beams of fission fragments and other isotopes.

  1. The Legnaro National Laboratories and the SPES facility: nuclear structure and reactions today and tomorrow

    International Nuclear Information System (INIS)

    De Angelis, Giacomo; Fiorentini, Gianni

    2016-01-01

    There is a very long tradition of studying nuclear structure and reactions at the Legnaro National Laboratories (LNL) of the Istituto Nazionale di Fisica Nucleare (Italian Institute of Nuclear Physics). The wide expertise acquired in building and running large germanium arrays has made the laboratories one of the most advanced research centers in γ -ray spectroscopy. The ’gamma group’ has been deeply involved in all the national and international developments of the last 20 years and is currently one of the major contributors to the AGATA project, the first (together with its American counterpart GRETINA) γ -detector array based on γ -ray tracking. This line of research is expected to be strongly boosted by the coming into operation of the SPES radioactive ion beam project, currently under construction at LNL. In this report, written on the occasion of the 40th anniversary of the Nobel prize awarded to Aage Bohr, Ben R Mottelson and Leo Rainwater and particularly focused on the physics of nuclear structure, we intend to summarize the different lines of research that have guided nuclear structure and reaction research at LNL in the last decades. The results achieved have paved the way for the present SPES facility, a new laboratories infrastructure producing and accelerating radioactive ion beams of fission fragments and other isotopes. (invited comment)

  2. Health problems raised by the elimination of radioactive wastes and nuclear accidents; Problemes sanitaires poses par l'elimination des dechets radioactifs et par les accidents nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Jammet, H.; Mechali, D.; Dousset, M. [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1964-07-01

    The rapid development of nuclear energy demands an urgent solution to the health problems arising from the discharge into the environment of radioactive residues produced by nuclear installations. - To be able to evaluate the risks run by the population and to fix tolerance limits for waste discharge, it is necessary to possess an exact knowledge of the course taken by the radioelements discharged, from their source until they reach man. The incorporation of radioelements in food cycles is the first risk to take into consideration. The factors involved in all stages of this transmission must be foreseen, whether they concern physical or biological media, because of their continuity and their interdependence. Finally, socio-economic and dietetic data must be collected in order that the risks and tolerance levels estimated are based on concrete and experimental rather than theoretical knowledge. The risk of nuclear accidents in the atomic industry, although very improbable, must be taken into consideration because of the seriousness of their consequences. The health problems arise in the field of professional hygiene on the one hand and in that of public hygiene on the other. In the first field the risk is two-fold and involves irradiation and contamination. The public sphere is reduced essentially to the risk of contamination by radioactive substances accidentally released in the surrounding medium. The health studies to be conducted in this field therefore include research not only on irradiation or contamination therapeutics but also on the transfer of radioelements from the accident site to man, mainly through food cycles, in their physical and in their biological components. Studies of this kind form the basis of decisions in the health field which would have to be taken in the case of an accident. (authors) [French] Le developpement rapide de l'energie nucleaire rend urgente la solution des problemes sanitaires poses par le rejet dans le milieu ambiant des

  3. Status of Simulations for the Cyclotron Laboratory at the Institute for Nuclear Research and Nuclear Energy

    Science.gov (United States)

    Asova, G.; Goutev, N.; Tonev, D.; Artinyan, A.

    2018-05-01

    The Institute for Nuclear Research and Nuclear Energy is preparing to operate a high-power cyclotron for production of radioisotopes for nuclear medicine, research in radiochemistry, radiobiology, nuclear physics, solid state physics. The cyclotron is a TR24 produced by ASCI, Canada, capable to deliver proton beams in the energy range of 15 to 24 MeV with current as high as 400 µA. Multiple extraction lines can be fed. The primary goal of the project is the production of PET and SPECT isotopes as 18F, 67,68Ga, 99mTc, etc. This contribution reports the status of the project. Design considerations for the cyclotron vault will be discussed for some of the target radioisotopes.

  4. North Carolina State University Nuclear Structure Research at the Triangle Universities Nuclear Laboratory. Progress report

    International Nuclear Information System (INIS)

    Seagondollar, L.W.; Waltner, A.W.; Mitchell, G.E.; Tilley, D.R.; Gould, C.R.

    1975-01-01

    A summary is presented of nuclear structure research completed at the Triangle Universities Nuclear Lab for the period 9/1/74 to 8/31/75. Included are abstracts and titles for studies of electromagnetic transitions in low-medium mass nuclei, high resolution studies, accelerator induced x-ray investigations, and energy related neutron and charged particle cross section measurements. (U.S.)

  5. Minerals and design of new waste forms for conditioning nuclear waste; Les mineraux et la formulation de nouvelles matrices de stockage pour les dechets radioactifs

    Energy Technology Data Exchange (ETDEWEB)

    Montel, J.M. [G2R, CNRS, Ecole nationale superieure de geologie, Nancy-universite, BP 70239, 54056 Vandoeuvre-les-Nancy (France)

    2011-02-15

    Safe storage of radioactive waste is a major challenge for the nuclear industry. Mineralogy is a good basis for designing ceramics, which could eventually replace nuclear glasses. This requires a new storage concept: separation-conditioning. Basic rules of crystal chemistry allow one to select the most suitable structures and natural occurrences allow assessing the long-term performance of ceramics in a geological environment. Three criteria are of special interest: compatibility with geological environment, resistance to natural fluids, and effects of self-irradiation. If mineralogical information is efficient for predicting the behaviour of common, well-known minerals, such as zircon, monazite or apatite, more research is needed to rationalize the long-term behaviour of uncommon waste form analogs. (author)

  6. Study relating to the physico-chemical behaviour of heavy water in nuclear reactors; Etudes relatives au comportement physico-chimique de l'eau lourde dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Chenouard, J; Dirian, G; Roth, E; Vignet, P; Platzer, R [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1959-07-01

    Chemical and isotope pollution, and radiolytic decomposition are the two most important ways in which heavy water becomes degraded in nuclear reactors. Chemical pollution has led to the creation of ion exchange purification loops specially designed for reactors: the report contains a description in detail of the application of this purification method in CEA research reactors, including the analysis required, results obtained, and their interpretation. The intelligence obtained on radiolytic decomposition with the same facilities is also discussed, as well as the recombination apparatus and control equipment utilized. Finally, investigation to date in the CEA on recombination circuits for power reactors is also discussed. (author) [French] Parmi les degradations subies par l'eau lourde dans les reacteurs nucleaires, les deux plus importantes sont la pollution chimique et isotopique et la decomposition radiolytique. La pollution chimique a conduit a mettre au point pour le cas particulier des reacteurs, des circuits d'epuration par echange d'ions. On decrit ici en detail la mise en oeuvre de cette methode dans les reacteurs de recherche du CEA; les controles qu'elle necessite, les resultats obtenus et leur interpretation. En ce qui concerne la dissociation radiolytique de l'eau, les renseignements obtenus sur ces memes reacteurs sont communiques, ainsi que les details des dispositifs de recombinaison et des moyens de controle. Enfin, on fait le point des etudes poursuivies au CEA sur ces memes problemes de recombinaison dans le cas des reacteurs de puissance. (auteur)

  7. Study relating to the physico-chemical behaviour of heavy water in nuclear reactors; Etudes relatives au comportement physico-chimique de l'eau lourde dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Chenouard, J.; Dirian, G.; Roth, E.; Vignet, P.; Platzer, R. [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1959-07-01

    Chemical and isotope pollution, and radiolytic decomposition are the two most important ways in which heavy water becomes degraded in nuclear reactors. Chemical pollution has led to the creation of ion exchange purification loops specially designed for reactors: the report contains a description in detail of the application of this purification method in CEA research reactors, including the analysis required, results obtained, and their interpretation. The intelligence obtained on radiolytic decomposition with the same facilities is also discussed, as well as the recombination apparatus and control equipment utilized. Finally, investigation to date in the CEA on recombination circuits for power reactors is also discussed. (author) [French] Parmi les degradations subies par l'eau lourde dans les reacteurs nucleaires, les deux plus importantes sont la pollution chimique et isotopique et la decomposition radiolytique. La pollution chimique a conduit a mettre au point pour le cas particulier des reacteurs, des circuits d'epuration par echange d'ions. On decrit ici en detail la mise en oeuvre de cette methode dans les reacteurs de recherche du CEA; les controles qu'elle necessite, les resultats obtenus et leur interpretation. En ce qui concerne la dissociation radiolytique de l'eau, les renseignements obtenus sur ces memes reacteurs sont communiques, ainsi que les details des dispositifs de recombinaison et des moyens de controle. Enfin, on fait le point des etudes poursuivies au CEA sur ces memes problemes de recombinaison dans le cas des reacteurs de puissance. (auteur)

  8. Annual report of Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo, fiscal year 1995

    International Nuclear Information System (INIS)

    1996-08-01

    This is an annual report prepared on research education action, operation state of research instruments and others in FY 1995 at Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo. The laboratory has four large instruments such as high speed neutron source reactor, 'Yayoi', electron linac, fundamentally experimental equipment for blanket design of nuclear fusion reactor, and heavy radiation research equipment (HIT), of which former two are used for cooperative research with universities in Japan, and the next blanket and the last HIT are also presented for cooperative researches in Faculty of Engineering and in University of Tokyo, respectively. FY 1995 was the beginning year of earnest discussion on future planning of this facility with concentrated effort. These four large research instruments are all in their active use. And, their further improvement is under preparation. In this report, the progress in FY 1995 on operation and management of the four large instruments are described at first, and on next, research actions, contents of theses for degree and graduation of students as well as research results of laboratory stuffs are summarized. These researches are constituted mainly using these large instruments in the facility, aiming at development of advanced and new field of atomic energy engineering and relates to nuclear reactor first wall engineering, nuclear reactor fuel cycle engineering, electromagnetic structure engineering, thermal-liquid engineering, mathematical information engineering, quantum beam engineering, new type reactor design and so on. (G.K.)

  9. Annual report of Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo, fiscal year 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-08-01

    This is an annual report prepared on research education action, operation state of research instruments and others in FY 1995 at Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo. The laboratory has four large instruments such as high speed neutron source reactor, `Yayoi`, electron linac, fundamentally experimental equipment for blanket design of nuclear fusion reactor, and heavy radiation research equipment (HIT), of which former two are used for cooperative research with universities in Japan, and the next blanket and the last HIT are also presented for cooperative researches in Faculty of Engineering and in University of Tokyo, respectively. FY 1995 was the beginning year of earnest discussion on future planning of this facility with concentrated effort. These four large research instruments are all in their active use. And, their further improvement is under preparation. In this report, the progress in FY 1995 on operation and management of the four large instruments are described at first, and on next, research actions, contents of theses for degree and graduation of students as well as research results of laboratory stuffs are summarized. These researches are constituted mainly using these large instruments in the facility, aiming at development of advanced and new field of atomic energy engineering and relates to nuclear reactor first wall engineering, nuclear reactor fuel cycle engineering, electromagnetic structure engineering, thermal-liquid engineering, mathematical information engineering, quantum beam engineering, new type reactor design and so on. (G.K.)

  10. Annual report of Laboratory of Nuclear Studies, Osaka University, for fiscal 1979

    International Nuclear Information System (INIS)

    1980-01-01

    This annual report presents the research activities carried out by the members of the Laboratory and the users of the facilities. The major facilities of the Laboratory are a 110 cm variable energy cyclotron and a 4.7 MeV Van de Graaff. The cyclotron division has made extensive studies on nuclear physics, such as the pre-equilibrium process of neutron emission, inelastic proton scattering, He-3 induced reactions, and polarization experiments. The Van de Graaff division reports about the works on hyperfine interaction, mirror beta-decay, heavy element ion source, and nuclear spin alignment. Model magnet study on the future project has also been developed at the Laboratory. Other divisions of the Laboratory are the mass spectroscopy division, the radioisotope division, and the theoretical physics division. The works of the mass spectroscopy division concern the on-line mass separation of radioisotopes, the field desorption of mass spectra, and instrumentation. The works of the radioisotope division spread widely on the field of nuclear chemistry. At the end of this report, various works, which have been made by the theoretical physics division, are introduced. (Kato, T.)

  11. Can-rupture detection in gas-cooled nuclear reactors; La detection des ruptures de gaine dans les piles nucleaires refroidies par gaz

    Energy Technology Data Exchange (ETDEWEB)

    Roguin, A. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1965-07-01

    Can-rupture detection (DRG) is one important aspect of pile safety, more particularly so in the case of gas-cooled reactors. A rapid and sure detection constitutes also an improvement as far as the efficiency of electricity-producing nuclear power stations are concerned. Among the numerous can-rupture detection methods, that based on the measurement of the concentration of short-lived fission gases in the heat-carrying fluid has proved to be the most sensitive and the most rapid. A systematic study of detectors based on the electrostatic collection of the daughter products of fission gases has been undertaken with a view to equip the reactors EL 2, G 3, EDF 1, EDF 2 and EDF 3, the gas loops of PEGASE and EL 4. The different parameters are studied in detail in order to obtain a maximum sensitivity and to make it possible to construct detection devices having the maximum operational reliability and requiring the minimum maintenance. The primary applications of these devices are examined in the case of the above-mentioned reactors. (author) [French] La Detection des Ruptures de Gaines (D. R. G.) est un aspect important de la securite des piles et plus particulierement des piles refroidies par un gaz. Une detection rapide et sure constitue aussi un element d'amelioration du rendement des centrales nucleaires productrices d'energie electrique. Parmi les nombreuses methodes de detection des ruptures de gaines, la mesure de la concentration dans le fluide caloporteur des gaz de fission a vie courte s'est revelee comme la plus sensible et la plus rapide. Une etude systematique des detecteurs a collection electrostatique des descendants des gaz de fission a ete entreprise en vue d'equiper les piles EL 2, G 3, EDF 1, EDF 2 et EDF 3, les boucles a gaz de la pile Pegase et la pile EL 4. Les divers parametres sont etudies en detail pour obtenir une sensibilite maximum et permettre la realisation de dispositifs de detection ayant le maximum de securite de

  12. Can-rupture detection in gas-cooled nuclear reactors; La detection des ruptures de gaine dans les piles nucleaires refroidies par gaz

    Energy Technology Data Exchange (ETDEWEB)

    Roguin, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1965-07-01

    Can-rupture detection (DRG) is one important aspect of pile safety, more particularly so in the case of gas-cooled reactors. A rapid and sure detection constitutes also an improvement as far as the efficiency of electricity-producing nuclear power stations are concerned. Among the numerous can-rupture detection methods, that based on the measurement of the concentration of short-lived fission gases in the heat-carrying fluid has proved to be the most sensitive and the most rapid. A systematic study of detectors based on the electrostatic collection of the daughter products of fission gases has been undertaken with a view to equip the reactors EL 2, G 3, EDF 1, EDF 2 and EDF 3, the gas loops of PEGASE and EL 4. The different parameters are studied in detail in order to obtain a maximum sensitivity and to make it possible to construct detection devices having the maximum operational reliability and requiring the minimum maintenance. The primary applications of these devices are examined in the case of the above-mentioned reactors. (author) [French] La Detection des Ruptures de Gaines (D. R. G.) est un aspect important de la securite des piles et plus particulierement des piles refroidies par un gaz. Une detection rapide et sure constitue aussi un element d'amelioration du rendement des centrales nucleaires productrices d'energie electrique. Parmi les nombreuses methodes de detection des ruptures de gaines, la mesure de la concentration dans le fluide caloporteur des gaz de fission a vie courte s'est revelee comme la plus sensible et la plus rapide. Une etude systematique des detecteurs a collection electrostatique des descendants des gaz de fission a ete entreprise en vue d'equiper les piles EL 2, G 3, EDF 1, EDF 2 et EDF 3, les boucles a gaz de la pile Pegase et la pile EL 4. Les divers parametres sont etudies en detail pour obtenir une sensibilite maximum et permettre la realisation de dispositifs de detection ayant le maximum de securite de fonctionnement et le

  13. IAEA Technical Co-operation activities: Asia and the Pacific. Workshop on training nuclear laboratory technicians

    International Nuclear Information System (INIS)

    Roeed, S.S.

    1976-01-01

    The workshop was held to exchange information on existing facilities and programmes in Asia and the Pacific for training nuclear laboratory technicians, to identify future training needs and to assess the need for IAEA's involvement in this field. As the participants outlined the requirements for nuclear laboratory technician training and the facilities available in their respective countries, it became evident that, in addition to the training of radioisotope laboratory technicians, they also wished to review the need for technician training for the operation of nuclear power plants and industrial application of atomic energy. The terms of reference of the workshop were extended accordingly. The opening address by Chang Suk Lee, the Korean Vice Minister of Science and Technology, noted the valuable contribution to quality control and other industrial uses that nuclear techniques have made in his country. He also reviewed the application of nuclear techniques in Korean agriculture and medicine. The participants explored various forms of co-operation that could be established between countries of the region. Exchange programmes, not only for students but also for expert teachers, and the exchange or loan of equipment were suggested. It was felt that some generalized training courses could be organized on a regional basis, and two countries advocated the setting up of a regional training centre. One suggestion was to arrange regional training courses in special fields that would move from one country to another. The need was felt for periodic regional meetings on training methods, course content and other questions relating to training of laboratory technicians. The IAEA was requested to act as a clearinghouse for information on available training facilities in the region and to advise on the curricula for technician training courses. The Agency was also asked to organize short courses for the training of instructors of technicians in the various fields of atomic

  14. Nuclear techniques in food and agriculture and international cooperation in their use; Les sciences nucleaires dans l'alimentation et l'agriculture et la cooperation internationale dans ce domaine

    Energy Technology Data Exchange (ETDEWEB)

    Fried, M.; Sigurbjörnsson, B. [Joint FAO/IAEA Division of Atomic Energy in Food and Agriculture, International Atomic Energy Agency, Vienna (Austria)

    1970-01-15

    that the medfly attacking citrus, the olive fly, the codling moth attacking apples, the tsetse fly and a number of other insects can be eliminated in this way. Radiation can be used to attenuate parasitic larvae attacking animals. The parasites which have thus lost their virulence are used in the production of animal vaccines. In fact, this is still the only known method of producing such vaccines. Isotopic tracers are used to study the movement and metabolism of nutrients in animal production and are particularly useful in studies of essential micronutrients. This unique ability of isotopic tracers to enable detection of chemicals in minute quantities forms the basis for a new program on studies of harmful pesticide residues on plant and animal foods. The sterilizing and killing effect of radiation has been shown to be uniquely effective in preventing or delaying spoilage in a variety of food commodities. Radiation preservation can, for example, be applied to perishable products which do not tolerate cooking or freezing - even after the products are packed. To foster international activities in the field of nuclear science in food and agriculture, the Joint FAO/IAEA Division of Atomic Energy in Food and Agriculture carries out a single joint program of work approved by the two parent organizations. To carry out work in all these fields, the Division relies heavily on the concept of coordinated research based on research contracts or research agreements. A large part of the work is carried out under various technical assistance projects including expert advice, equipment and training and through the two UNDP Special Fund Projects executed by the IAEA. The IAEA Laboratory plays an indispensable role in the Division’s programs by providing various coordinating services, research, and specialized training. (author) [French] Les méthodes nucléaires sont employées dans la recherche et la production à tous les niveaux successifs de la chaîhe alimentaire: sol et eau

  15. Studies of nuclear processes at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1995--31 August 1996

    International Nuclear Information System (INIS)

    Ludwig, E.J.

    1996-01-01

    The Triangle Universities Nuclear Laboratory (TUNL)--a collaboration of Duke University, North Carolina State University, and the University of North Carolina at Chapel Hill--has had a very productive year. This report covers parts of the second and third year of a three-year grant between the US Department of Energy and the three collaborating universities. The TUNL research program focuses on the following areas: precision test of parity-invariance violation in resonance neutron scattering at LANSCE/LANL; parity violation measurements using charged-particle resonances in A = 20--40 targets and the A = 4 system at TUNL; chaotic behavior in the nuclei 30 P and 34 Cl from studies of eigenvalue fluctuations in nuclear level schemes; search for anomalies in the level density (pairing phase transition) in 1f-2p shell nuclei using GEANIE at LANSCE/LANL; parity-conserving time-reversal noninvariance tests using 166 Ho resonances at Geel, ORELA, or LANSCE/LANL; nuclear astrophysics; few-body nuclear systems; Nuclear Data evaluation for A = 3--20 for which TUNL is now the international center. Developments in technology and instrumentation are vital to the research and training program. Innovative work was continued in: polarized beam development; polarized target development; designing new cryogenic systems; designing new detectors; improving high-resolution beams for the KN and FN accelerators; development of an unpolarized Low-Energy Beam Facility for radiative capture studies of astrophysical interest. Preliminary research summaries are presented

  16. Studies of nuclear processes at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1995--31 August 1996

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, E.J.

    1996-09-01

    The Triangle Universities Nuclear Laboratory (TUNL)--a collaboration of Duke University, North Carolina State University, and the University of North Carolina at Chapel Hill--has had a very productive year. This report covers parts of the second and third year of a three-year grant between the US Department of Energy and the three collaborating universities. The TUNL research program focuses on the following areas: precision test of parity-invariance violation in resonance neutron scattering at LANSCE/LANL; parity violation measurements using charged-particle resonances in A = 20--40 targets and the A = 4 system at TUNL; chaotic behavior in the nuclei {sup 30}P and {sup 34}Cl from studies of eigenvalue fluctuations in nuclear level schemes; search for anomalies in the level density (pairing phase transition) in 1f-2p shell nuclei using GEANIE at LANSCE/LANL; parity-conserving time-reversal noninvariance tests using {sup 166}Ho resonances at Geel, ORELA, or LANSCE/LANL; nuclear astrophysics; few-body nuclear systems; Nuclear Data evaluation for A = 3--20 for which TUNL is now the international center. Developments in technology and instrumentation are vital to the research and training program. Innovative work was continued in: polarized beam development; polarized target development; designing new cryogenic systems; designing new detectors; improving high-resolution beams for the KN and FN accelerators; development of an unpolarized Low-Energy Beam Facility for radiative capture studies of astrophysical interest. Preliminary research summaries are presented.

  17. Management of nuclear materials in an R ampersand D environment at the Los Alamos National Laboratory

    International Nuclear Information System (INIS)

    Behrens, R.G.; Roth, S.B.; Jones, S.R.

    1991-01-01

    Los Alamos National Laboratory is a multidisciplinary R ampersand D organization and, as such, its nuclear materials inventory is diverse. Accordingly, major inventories of isotopes such as Pu-238, Pu-239, Pu-242, U-235, Th, tritium, and deuterium, and lesser amounts of isotopes of Am, Cm, Np and exotic isotopes such as berkelium must be managed in accordance with Department of Energy Orders and Laboratory policies. Los Alamos also acts as a national resource for many one-of-a-kind materials which are supplied to universities, industry, and other government agencies within the US and throughout the world. Management of these materials requires effective interaction and communication with many nuclear materials custodians residing in over forty technical groups as well as effective interaction with numerous outside organizations. This paper discusses the role, philosophy, and organizational structure of Nuclear Materials Management at Los Alamos and also briefly presents results of two special nuclear materials management projects: 1- Revision of Item Description Codes for use in the Los Alamos nuclear material data base and 2- The recommendation of new economic discard limits for Pu-239. 2 refs., 1 fig

  18. Quality Assurance in Nuclear Fuel Research at the Laboratory of High- and Medium-level Activity at SCK-CEN

    Energy Technology Data Exchange (ETDEWEB)

    Sannen, L.; Gys, A.; Verwerft, M

    1999-10-01

    Quality assurance in nuclear fuel research demands specific calibration and validation methodologies. Indeed the analytical experiments in hot-cells on highly radioactive objects are non-standard and many times unique. The standards and validation methods developed for and applied to the main nuclear fuel research experiments in the hot laboratories of the Belgian Nuclear Research Centre SCK-CEN are outlined.

  19. Quality Assurance in Nuclear Fuel Research at the Laboratory of High- and Medium-level Activity at SCK-CEN

    International Nuclear Information System (INIS)

    Sannen, L.; Gys, A.; Verwerft, M.

    1999-10-01

    Quality assurance in nuclear fuel research demands specific calibration and validation methodologies. Indeed the analytical experiments in hot-cells on highly radioactive objects are non-standard and many times unique. The standards and validation methods developed for and applied to the main nuclear fuel research experiments in the hot laboratories of the Belgian Nuclear Research Centre SCK-CEN are outlined

  20. Promising lines of research in the realms of laboratory nuclear astrophysics by means of powerful lasers

    Energy Technology Data Exchange (ETDEWEB)

    Belyaev, V. S., E-mail: belyaev@tsniimash.ru; Zagreev, B. V.; Kedrov, A. Yu.; Lobanov, A. V.; Matafonov, A. P. [Russian Space Agency, Pionerskaya, Central Research Institute for Machine Building (TsNIIMash) (Russian Federation); Bolshakov, V. V.; Savel’ev, A. B.; Mordvintsev, I. M.; Tsymbalov, I. N.; Shulyapov, S. A. [Moscow State University, International Laser Center (Russian Federation); Pikuz, S. A.; Skobelev, I. Yu.; Filippov, E. D.; Faenov, A. Ya. [Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation); Krainov, V. P. [Moscow Institute of Physics and Technology (State University) (Russian Federation)

    2016-09-15

    Basic nuclear-astrophysics problems that can be studied under laboratory conditions at a laserradiation intensity of 10{sup 18} W/cm{sup 2} or more are specified. These are the lithium problem, the problem of determining neutron sources for s-processes of heavy-element formation, the formation of bypassed stable p-nuclei, and nuclear reactions involving isotopes used by astronomers for diagnostics purposes. The results of experiments at the Neodym laser facility are presented, and proposals for further studies in these realms are formulated.

  1. Applications of nuclear techniques for in vivo body composition studies at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    Cohn, S.H.; Ellis, K.J.; Vartsky, D.; Vaswani, A.N.; Wielopolski, L.

    1981-01-01

    A series of technical developments and their clinical applications in various nuclear technologies at Brookhaven National Laboratory is described. These include the development of a portable neutron activation facility for measuring cadmium in vivo in kidney and liver, a technique for the measurement of body iron utilizing nuclear resonant scattering of gamma rays, a non-invasive measure of the skeletal levels of lead by an x-ray fluorescence technique, and the development of a pulsed Van de Graaff generator as a source of pulsed neutrons for the measurement of lung silicon

  2. Applications of nuclear techniques for in vivo body composition studies at Brookhaven National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Cohn, S.H.; Ellis, K.J.; Vartsky, D.; Vaswani, A.N.; Wielopolski, L.

    1981-01-01

    A series of technical developments and their clinical applications in various nuclear technologies at Brookhaven National Laboratory is described. These include the development of a portable neutron activation facility for measuring cadmium in vivo in kidney and liver, a technique for the measurement of body iron utilizing nuclear resonant scattering of gamma rays, a non-invasive measure of the skeletal levels of lead by an x-ray fluorescence technique, and the development of a pulsed Van de Graaff generator as a source of pulsed neutrons for the measurement of lung silicon. (ACR)

  3. Nuclear Physics Laboratory technical progress report, [August 15, 1991--October 1, 1992

    International Nuclear Information System (INIS)

    1992-01-01

    This report summarizes work carried out between August 15, 1991 and October 1, 1992 at the Nuclear Physics Laboratory of the University of Colorado, Boulder, under contracts DE-FG02-86ER-40269 and DE-FG02-87ER-40335 with the United States Department of Energy. These contracts support experimental and theoretical work in intermediate energy nuclear physics. The experimental program is very broadly based; it includes pion-nucleon and pion-nucleus studies at Los Alamos and TRIUMF inelastic pion scattering and charge exchange reactions at LAMPF, kaon-nucleus scattering at the AGS, and nucleon charge exchange at LAMPF/NTOF

  4. The atolls of Mururoa and Fangataufa (French Polynesia). The nuclear testings. Radiological aspects; Les atolls de Mururoa et de Fangataufa (Polynesie Francaise). Les experimentations nucleaires. Aspects radiologiques

    Energy Technology Data Exchange (ETDEWEB)

    Martin, G

    2007-07-01

    This report provides a review of the radiological measures implemented during the thirty year period of French nuclear tests in Polynesian atolls of Mururoa and Fangataufa. It presents full details of the practices deployed throughout these tests, including, in particular, aspects concerning radiological protection for the population and the environment. It contains all the scientific results and measurements of radioactivity performed during this period, providing concrete facts that can be used to assess the consequences these tests have had on the personnel involved, the population and the environment. (author)

  5. Comparative Studies of Chemical Effects following Nuclear Reactions and Transformations on Metal Organic Phenyl Compounds; Etudes Comparatives des Effets Chimiques Induits par les Reactions et les Transformations Nucleaires sur des Composes Phenylmetalliques; 0421 0420 0410 0414 ; Estudios Comparativos de los Efectos Quimicos de las Reacciones y Transformaciones Nucleares en Compuestos Fenil-Organometalicos

    Energy Technology Data Exchange (ETDEWEB)

    Merz, E.; Riedel, H. J. [Kernforschungsanlage, Juelich, Federal Republic of Germany (Germany)

    1965-04-15

    molecule by the nuclear recoil and the resulting excitation. The hypothesis is put forward that the kind and quantity of certain new radioactive species produced in connection with nuclear events is less a function of the nature and concentration of primary recoil fragments than are the ions, radicals and lattice defects imparted to the irradiated materials by secondary recoil effects (elastic and inelastic interactions) , including the peculiar influence of oxygen. (author) [French] Les auteurs ont etudie les effets chimiques provoques par les atomes chaud de recul resultant des reactions nucleaires dans les solides et dans les liquides en se fondant sur une vaste comparaison des produits des processus (n,{gamma}) et (n,2n) dans les composes phenyles du germanium, de l'etain, du plomb, de l'arsenic et de l'antimoine. En outre, ils ont compare les produits de recul radioactifs formes apres capture K dans le tetraphenyl- germanium-{sup 68}Ge avec les resultats du processus (n,{gamma}) dans le triphenylgalliumet du processus (n,p) sur le tetraphenylgermanium. Enfin, ils ont etudie la transition {beta}{sup -} dans laquelle {sup 77}Ge est remplace par {sup 77}As dans le compose. En appliquant differentes methodes de separation, par exemple la chromatographie d'adsorption sur alumine, l'echange d'ions et l'electrophorese, ils ont separe les divers produits de recul radioactifs et determine les rendements individuels. Ils ont constate que, dans les reactions nucleaires, les composes des metaux cites ayant des coordinats identiques forment pratiquement les memes classes.de produits de recul. Toutefois, pour la distribution des rendements, il y a des differences caracteristiques entre la reaction (n,{gamma}) et la reaction (n,2n). L'influence sur les rendements est a peine perceptible lorsque les irradiations ont lieu dans des liquides ou des solutions. Mais les differences trouvees pour les nouveaux composes formes par des transformations nucleaires sont frappantes, en ce qui

  6. Comparability between NQA-1 and the QA programs for analytical laboratories within the nuclear industry and EPA hazardous waste laboratories

    International Nuclear Information System (INIS)

    English, S.L.; Dahl, D.R.

    1989-01-01

    There is increasing cooperation between the Department of Energy (DOE), Department of Defense (DOD), and the Environmental Protection Agency (EPA) in the activities associated with monitoring and clean-up of hazardous wastes. Pacific Northwest Laboratory (PNL) examined the quality assurance/quality control programs that the EPA requires of the private sector when performing routine analyses of hazardous wastes to confirm how or if the requirements correspond with PNL's QA program based upon NQA-1. This paper presents the similarities and differences between NQA-1 and the QA program identified in ASTM-C1009-83, Establishing a QA Program for Analytical Chemistry Laboratories within the Nuclear Industry; EPA QAMS-005/80, Interim Guidelines and Specifications for Preparing Quality Assurance Project Plans, which is referenced in Statements of Work for CERCLA analytical activities; and Chapter 1 of SW-846, which is used in analyses of RCRA samples. The EPA QA programs for hazardous waste analyses are easily encompassed within an already established NQA-1 QA program. A few new terms are introduced and there is an increased emphasis upon the QC/verification, but there are many of the same basic concepts in all the programs

  7. The Australian Institute of Nuclear Science and Engineering - a model for university-national laboratory collaboration

    International Nuclear Information System (INIS)

    Gammon, R.B.

    1994-01-01

    This paper describes the aims and activities of the Australian Institute of Nuclear Science and Engineering (AINSE), from its foundation in 1958 through to 1993. The philosophy, structure and funding of the Institute are briefly reviewed, followed by an account of the development of national research facilities at the Lucas Heights Research Laboratories, with particular emphasis on nuclear techniques of analyses using neutron scattering instruments and particle accelerators. AINSE's program of Grants, fellowships and studentships are explained with many examples given of projects having significance in the context of Australia's national goals. Conference and training programs are also included. The achievements during these years demonstrate that AINSE has been an efficient and cost-effective model for collaboration between universities and a major national laboratory. In recent years, industry, government organisations and the tertiary education system have undergone major re-structuring and rationalization. A new operational structure for AINSE has evolved in response to these changes and is described

  8. Atomic Transport Problems of Interest in Nuclear Systems; Problemes de Transport Atomique Presentant un Interet dans les Systemes Nucleaires; Problemy perenosa atomov, predstavlyayushchie interes v yadernykh sistemakh; Problemas de Transporte Atomico de Interes para la Ingenieria Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Lundy, T. S.; Winslow, F. R. [Oak Ridge National Laboratory, TN (United States)

    1966-02-15

    sur la diffusion dans un metal. Leurs resultats sont en bon accord avec les calculs theoriques fondes sur un modele de 1)annihilation de l'excedent de defauts ponctuels (lacunes et interstices) par trois mecanismes, savoir la migration vers des puits fixes dont la distribution est homogene tels que les dislocations, la migration vers une surface libre et la recombinaison de defauts. (author) [Spanish] Se analizan en la memoria varios problemas encontrados al aplicar los datos basicos sobre difusion a sistemas de interes practico para la ingenierfa nuclear. Estos problemas se refieren a experimentos de difusion isotermica, difusion por gradiente termico y efectos de la radiacion sobre los procesos de difusion. La mayor parte de la informacion fidedigna sobre la difusion en solidos proviene de casos donde no existe, en esencia, gradiente alguno de concentracion de las especies que se difunden. Los sistemas que interesan a los ingenieros nucleares, en cambio, presentan casi invariablemente gradientes de concentracion. Asf, pues, para evaluarlos coeficientes adecuados es necesario contar con un conocimiento practico de la relacion existente entre los coeficientes de autodifusiOn y de difusion quimica. Ademas, es preciso conocer los coeficientes de actividad termodinamica como funciones de la composicion. Recientemente se ha demostrado sin lugar a dudas que el uso indiscriminado de una expresion del tipo de la de Arrhenius para describir la manera en que los datos de difusion dependen de la temperatura, puede introducir graves errores en el calculo de los coeficientes de difusion. Se analizan en la memoria las consecuencias de ese hecho, haciendo especial hincapie en los sistemas cubicos centrados en el cuerpo/ del tipo refractario. Los autores han estudiado teorica y experimentalmente el efecto de un gradiente termico sobre la redistribucion de impurezas sustitutivas en un metal. Ese trabajo ha contribuido a un mejor conocimiento de la importancia de este efecto en los

  9. Dispersion modeling of atmospheric contaminants in the Angra Nuclear Power Plant using LES and a new model for the CBL growth

    International Nuclear Information System (INIS)

    Moreira, Davidson M.; Goulart, Antonio G.; Soares, Pedro M.; Vilhena, Marco T.

    2009-01-01

    In the present work we report a comparison between experimental data and GILTT approach to simulate radioactive contaminant dispersion in the Atmospheric Boundary Layer using micrometeorological parameters generated by LES (Large Eddy Simulation) in the area around the Angra dos Reis Nuclear Power Plant. Furthermore, starting from the evolution equation for the turbulent energy density spectrum (EDS), we develop a new model for the growth of the turbulence in Convective Boundary Layer (CBL). We apply dimensional analysis to parameterize the unknown inertial transport and convective source term in the dynamic equation for the three-dimensional (3-D) spectrum. The non linear integro-differential equation is solved by Adomian decomposition method. The one-dimensional vertical spectrum is derived from the 3-D spectrum, employing a weight function. This allows us to select the magnitude of the vertical spectral component for the construction of the growing 3-D. Using the micrometeorological parameters generated by LES, for the first time, we employ the vertical component of the energy spectrum to calculate the eddy diffusivity (required in dispersion models). This new eddy diffusivity is used in the simulations of the ground-level concentrations considering experimental data of the Nuclear Power Plant. (author)

  10. Argonne National Laboratory contributions to the International Symposium on Fusion Nuclear Technology (ISFNT)

    International Nuclear Information System (INIS)

    1988-10-01

    A total of sixteen papers with authors from Argonne National Laboratory were presented at the First International Symposium on Fusion Nuclear Technology (ISFNT), held in Tokyo, Japan, in April 1988. The papers cover the results of recent investigations in blanket design and analysis, fusion neutronics, materials experiments in liquid metal corrosion and solid breeders, tritium recovery analysis, experiments and analysis for liquid metal MHD, reactor safety and economic analysis, and transient electromagnetic analysis

  11. Decommissioning of the nuclear facilities at Risoe National Laboratory. Descriptions and cost assessment. Danish summary

    International Nuclear Information System (INIS)

    Lauridsen, Kurt

    2001-02-01

    The report gives a brief description of relevant aspects of the decommissioning of all nuclear facilities at Risoe National Laboratory, including the necessary operations to be performed and the associated costs. Together with a more detailed report, written in English, this report is the result of a project initiated by Risoe in the summer of 2000. The English report has undergone an international review, the results of which are summarised in the present report. (au)

  12. Argonne National Laboratory contributions to the International Symposium on Fusion Nuclear Technology (ISFNT)

    Energy Technology Data Exchange (ETDEWEB)

    1988-10-01

    A total of sixteen papers with authors from Argonne National Laboratory were presented at the First International Symposium on Fusion Nuclear Technology (ISFNT), held in Tokyo, Japan, in April 1988. The papers cover the results of recent investigations in blanket design and analysis, fusion neutronics, materials experiments in liquid metal corrosion and solid breeders, tritium recovery analysis, experiments and analysis for liquid metal MHD, reactor safety and economic analysis, and transient electromagnetic analysis.

  13. Safety analysis report of uranium dioxide fuel laboratory, Nuclear Research Centre Inchas, Egypt

    International Nuclear Information System (INIS)

    Abdel-Azim, M.S.; Abdel-Halim, A.

    1987-07-01

    In the Nuclear Research Center Inchas a uranium dioxide fuel laboratory is planned and built by the AEA Cairo (Atomic Energy Authority). The layout of this fuel lab and the programmatical contents are subject to the bilaterial cooperation between Egypt and the Federal Republic of Germany. In this report the safety analysis as basic items for the approval procedure are started in detail. (orig.) [de

  14. Berkeley Nuclear Laboratories Reactor Physics Mk. III Experimental Programme. Description of facility and programme for 1971

    Energy Technology Data Exchange (ETDEWEB)

    Nunn, R M; Waterson, R H; Young, J D

    1971-01-15

    Reactor physics experiments have been carried out at Berkeley Nuclear Laboratories during the past few years in support of the Civil Advanced Gas-Cooled Reactors (Mk. II) the Generating Board is building. These experiments are part of an overall programme whose objective is to assess the accuracy of the calculational methods used in the design and operation of these reactors. This report provides a description of the facility for the Mk. III experimental programme and the planned programme for 1971.

  15. Nuclear criticality safety staff training and qualifications at Los Alamos National Laboratory

    International Nuclear Information System (INIS)

    Monahan, S.P.; McLaughlin, T.P.

    1997-01-01

    Operations involving significant quantities of fissile material have been conducted at Los Alamos National Laboratory continuously since 1943. Until the advent of the Laboratory's Nuclear Criticality Safety Committee (NCSC) in 1957, line management had sole responsibility for controlling criticality risks. From 1957 until 1961, the NCSC was the Laboratory body which promulgated policy guidance as well as some technical guidance for specific operations. In 1961 the Laboratory created the position of Nuclear Criticality Safety Office (in addition to the NCSC). In 1980, Laboratory management moved the Criticality Safety Officer (and one other LACEF staff member who, by that time, was also working nearly full-time on criticality safety issues) into the Health Division office. Later that same year the Criticality Safety Group, H-6 (at that time) was created within H-Division, and staffed by these two individuals. The training and education of these individuals in the art of criticality safety was almost entirely self-regulated, depending heavily on technical interactions between each other, as well as NCSC, LACEF, operations, other facility, and broader criticality safety community personnel. Although the Los Alamos criticality safety group has grown both in size and formality of operations since 1980, the basic philosophy that a criticality specialist must be developed through mentoring and self motivation remains the same. Formally, this philosophy has been captured in an internal policy, document ''Conduct of Business in the Nuclear Criticality Safety Group.'' There are no short cuts or substitutes in the development of a criticality safety specialist. A person must have a self-motivated personality, excellent communications skills, a thorough understanding of the principals of neutron physics, a safety-conscious and helpful attitude, a good perspective of real risk, as well as a detailed understanding of process operations and credible upsets

  16. Annual report of Laboratory of Nuclear Studies, Osaka University, for fiscal 1995

    International Nuclear Information System (INIS)

    1996-01-01

    This publication is the progress report of the research activities carried out by the members of the Osaka University Laboratory of Nuclear Studies (OULNS) in fiscal year 1995. Some groups carried out their experimental researches using the major research facilities at the OULNS, that include 4.75 MV Van de Graaff, a mass spectrograph, and an M360 Computer. Other groups intensively carried out all or part of their researches outside Osaka University including the facilities in foreign countries. In short the reader will enjoy a whole spectrum of research fields studied by nuclear and particle techniques. To expand and enrich the studies in the interdisciplinary region between nuclear physics and solid state physics investigated by use of nuclear technologies, especially by use of unstable nuclear beams, OULNS is now planning a small Radioactive-Nuclear-Beam Facility which consists of an AVF cyclotron of K = 30 with high intensity beams of light ions and a post accelerator, a radio-frequency-quadrupole accelerator (RFQ). (J.P.N.)

  17. Radiological risk guidelines for nonreactor nuclear facilities at the Pacific Northwest Laboratory

    International Nuclear Information System (INIS)

    Lucas, D.E.; Ikenberry, T.A.

    1993-09-01

    Radiological risk evaluation guidelines for the public and workers have been developed at the Pacific Northwest Laboratory (PNL) based upon the Nuclear Safety Policy of the US Department of Energy (DOE) established in Secretary of Energy Notice SEN-35-91. The DOE nuclear safety policy states that the general public shall be protected such that no individual bears significant additional risk to health and safety from the operation of a DOE nuclear facility above the risks to which members of the general population are normally exposed. The radiological risk evaluation guidelines developed at PNL are unique in that they are (1) based upon quantitative risk goals and (2) provide a consistent level of risk management. These guidelines are used to evaluate the risk from radiological accidents that may occur during research and development activities at PNL, and are not intended for evaluation of routine exposures. A safety analyst uses the,frequency of the potential accident and the radiological dose to a given receptor to determine if the accident consequences meet the objectives of the Nuclear Safety Policy. The radiological risk evaluation guidelines are an effective tool for assisting in the management of risk at DOE nonreactor nuclear facilities. These guidelines (1) meet the nuclear safety policy of DOE, (2) establish a tool for managing risk at a consistent level within the defined constraints, and (3) set risk at an appropriate level, as compared with other risks encountered by the public and worker. Table S.1 summarizes the guidelines developed in this report

  18. Annual report of Nuclear Engineering Research Laboratory, University of Tokyo in fiscal 1990

    International Nuclear Information System (INIS)

    1991-01-01

    In this annual report, the activities of research and education and the state of operation of the research facilities in this Laboratory in fiscal year 1990 are summarized. There are four large research facilities in this Laboratory, that is, the fast neutron source reactor 'Yayoi', the electron beam linear accelerator, the nuclear fusion reactor blanket experiment device and the heavy ion irradiation research facility. Those are used to execute research and education in the wide fields of atomic energy engineering, and put to the common utilization by universities in whole Japan. The results of the research with these facilities have been reported in the separate reports. The research aims at developing the most advanced and new fields in nuclear reactor engineering, and includes the engineering of the first wall and the fuel cycle for nuclear fusion reactors, electromagnetic structure engineering, AI and robotics, quantum beam engineering, the design of new type reactors, the basic process of radiochemistry and so on. The report on the course of the large scale facilities, research activities, the publication of research, education and the events in the Laboratory in the year are described. (K.I.)

  19. Neutron Focusing Mirrors for Neutron Radiography of Irradiated Nuclear Fuel at Idaho National Laboratory

    Science.gov (United States)

    Rai, Durgesh K.; Wu, Huarui; Abir, Muhammad; Giglio, Jeffrey; Khaykovich, Boris

    Post irradiation examination (PIE) of samples irradiated in nuclear reactors is a challenging but necessary task for the development on novel nuclear power reactors. Idaho National Laboratory (INL) has neutron radiography capabilities, which are especially useful for the PIE of irradiated nuclear fuel. These capabilities are limited due to the extremely high gamma-ray radiation from the irradiated fuel, which precludes the use of standard digital detectors, in turn limiting the ability to do tomography and driving the cost of the measurements. In addition, the small 250 kW Neutron Radiography Reactor (NRAD) provides a relatively weak neutron flux, which leads to low signal-to-noise ratio. In this work, we develop neutron focusing optics suitable for the installation at NRAD. The optics would separate the sample and the detector, potentially allowing for the use of digital radiography detectors, and would provide significant intensity enhancement as well. The optics consist of several coaxial nested Wolter mirrors and is suited for polychromatic thermal neutron radiation. Laboratory Directed Research and Development program of Idaho National Laboratory.

  20. Design of simulated nuclear electronics laboratory experiments based on IAEA-TECDOC-530 on pcs

    International Nuclear Information System (INIS)

    Ghousia, S.F.; Nadeem, M.; Khaleeq, M.T.

    2002-05-01

    In this IAEA project, PK-11089 (Design of Simulated Nuclear Electronics Laboratory Experiments based on IAEA-TECDOC-530 on PCs), a software package consisting of Computer-Simulated Laboratory Experiments on Nuclear Electronics compatible with the IAEA-TECDOC-530 (Nuclear Electronics Laboratory Manual) has been developed in OrCAD 9.0 (an electronic circuit simulation software environment) as a self-training aid. The software process model employed in this project is the Feedback Waterfall model with some Rapid Application Model. The project work is completed in the five phases of the SDLC, (all of them have been fully completed) which includes the Requirement Definition, Phase, System and Software Design, Implementation and Unit testing, Integration and System-testing phase and the Operation and Maintenance phase. A total of 125 circuits are designed in 39 experiments from Power Supplies, Analog circuits, Digital circuits and Multi-channel analyzer sections. There is another set of schematic designs present in the package, which contains faulty circuits. This set is designed for the learners to exercise the troubleshooting. The integration and system-testing phase was carried out simultaneously. The Operation and Maintenance phase has been implemented by accomplishing it through some trainees and some undergraduate engineering students by allowing them to play with the software independently. (author)

  1. Annual report of Nuclear Engineering Research Laboratory, University of Tokyo in fiscal 1991

    International Nuclear Information System (INIS)

    1992-07-01

    In this annual report, the activities of education and research, the state of operation of research facilities and others in Nuclear Engineering Research Laboratory, University of Tokyo in fiscal year 1991 are summarized. In this Laboratory, there are four large research facilities, that is, the fast neutron source reactor 'Yayoi', the electron beam linac, the nuclear fusion reactor blanket experiment facility and the heavy irradiation research facility. Those are used for carrying out education and research in the wide fields of nuclear engineering, and are offered also for joint utilization. The results of the research by using respective research facilities were summarized in separate reports. In this annual report, the course of the management and operation of respective research facilities is described, and the research activities, the theses for doctorate and graduation theses of the teachers, personnel and graduate students in the Laboratory are summarized. In the research, those on first wall engineering for fusion reactors, fuel cycle engineering, electromagnetic structure engineering, AI and robotics, quantum beam engineering, new type reactor design and so on are included. (K.I.)

  2. Neutron activation analysis in an industrial laboratory using an off-site nuclear reactor

    International Nuclear Information System (INIS)

    Osborn, T.W.; Broering, W.B.

    1977-01-01

    A multifunctional research laboratory, such as Procter and Gamble's Miami Valley Laboratories, requires elemental analyses on many materials. A general survey technique is important even if the information it provides is incomplete or is less precise than single element analyses. Procter and Gamble has developed neutron activation analysis (NAA) capabilities using a nuclear reactor several hundred miles away. The concentration of 40 to 50 elements can be determined in a variety of matrices. We have found NAA to be a powerful supplement to some of the more classical analytical techniques even without having an on-site neutron source. We have also found an automated data acquisition system to be essential for the successful application of NAA in an industrial laboratory

  3. Informatics for the solution of health physics problems in nuclear medicine laboratories

    International Nuclear Information System (INIS)

    De Rossi, G.; Montesanti, M.I.

    1984-01-01

    As the use of 'in vitro' and 'in vivo' radioisotope studies spreads more and more, many organizational and management problems arise. Hence an exact evaluation of current contamination levels and protection standards is very important for radiation-protection purposes. Environmental and personnel contamination levels in Nuclear Medicine Laboratories were recorded for four years and the results were evaluated by a computer-assisted method which furnished parameters such as the maximum permissible level of radioactivity at different timeintervals. They allow the health physicist to assess laboratory contamination levels as well as to classify radiation workers and places. A continuous 'monitoring' of radiation safety is possible in order to modify worker and/or laboratory classification as soon as possible, in close connection with possible changes in radiation hazards. This computer program applies equally well to other fields involving radioisotope use, such as industry, agriculture, etc. (Author)

  4. Process in Developing Zebra fish Laboratory at Malaysian Nuclear Agency for Toxicology Studies

    International Nuclear Information System (INIS)

    Fazliana Mohd Saaya; Mohd Noor Hidayat Adenan; Anee Suryani Sued

    2015-01-01

    Toxicology is a branch of the very important especially in determining the safety and effectiveness of herbal products to avoid any side effects to the user. Currently, toxicity tests conducted in the laboratory is testing the toxicity of shrimp, tests on cell cultures and experimental animal tests on the rats. One of the most recent exam easier and can reduce the use of experimental rats was testing on zebra fish fish. Fish zebra fish Danio rerio, suitable for the study of toxicity, teratogenicity, genetic, oncology and neurobiology. Zebra fish system of aquarium fish zebra fish system has been in Nuclear Malaysia since 2013 but has not yet fully operational due to several factors and is in the process of moving into a new laboratory which systematically and in accordance with the enabling environment for care. The development of a new fully equipped laboratory is expected to benefit all for use in research. (author)

  5. A measurement evaluation program to support nuclear material control and accountability measurements in Brazilian laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Dias, Fabio C., E-mail: fabio@ird.gov.br [Comissao Nacional de Energia Nuclear (CNEN-RJ), Rio de Janeiro, RJ (Brazil); Mason, Peter, E-mail: peter.mason@ch.doe.gov [New Brunswick Laboratory (DOE/NBL), Argonne, IL (United States)

    2013-07-01

    A measurement evaluation program (MEP) is one of a number of valuable tools that analytical chemists can use to ensure that the data produced in the laboratory are fit for their intended purpose and consistent with expected performance values at a given time. As such, participation in a MEP is an important indicator of the quality of analytical data, and is recognized as such by independent regulatory and/or accreditation bodies. With the intent to implement such a program in Brazil, in November 2012 the Nuclear Energy Commission of Brazil (CNEN), with support from the Department of Energy of the United States' (US-DOE International Safeguards and Engagement Program), decided to initiate a technical cooperation project aiming at organizing a Safeguards Measurement Evaluation Program (SMEP) for Brazilian facilities. The project, entitled Action Sheet 23, was formalized under the terms of the Agreement between the US-DOE and the CNEN concerning research and development in nuclear material control, accountancy, verification, physical protection, and advanced containment and surveillance technologies for International Safeguards Applications. The work, jointly performed by the CNEN's Safeguards Laboratory (LASAL) and the New Brunswick Laboratory (NBL), has the objective to strengthen the traceability of accountability measurements and ensure adequate quality of safeguards measurements for facilities within Brazil, utilizing test samples characterized and provided by NBL. Recommendations to participants included measurement frequency, number of results per sample and format for reporting results using ISO methods for calculating and expressing measurement uncertainties. In this paper, we discuss the main steps taken by CNEN and NBL aiming at implementing such a program and the expected results, in particular the impact of uncertainty estimation on the evaluation of performance of each participant laboratory. The program is considered by Brazilian safeguards

  6. A measurement evaluation program to support nuclear material control and accountability measurements in Brazilian laboratories

    International Nuclear Information System (INIS)

    Dias, Fabio C.; Mason, Peter

    2013-01-01

    A measurement evaluation program (MEP) is one of a number of valuable tools that analytical chemists can use to ensure that the data produced in the laboratory are fit for their intended purpose and consistent with expected performance values at a given time. As such, participation in a MEP is an important indicator of the quality of analytical data, and is recognized as such by independent regulatory and/or accreditation bodies. With the intent to implement such a program in Brazil, in November 2012 the Nuclear Energy Commission of Brazil (CNEN), with support from the Department of Energy of the United States' (US-DOE International Safeguards and Engagement Program), decided to initiate a technical cooperation project aiming at organizing a Safeguards Measurement Evaluation Program (SMEP) for Brazilian facilities. The project, entitled Action Sheet 23, was formalized under the terms of the Agreement between the US-DOE and the CNEN concerning research and development in nuclear material control, accountancy, verification, physical protection, and advanced containment and surveillance technologies for International Safeguards Applications. The work, jointly performed by the CNEN's Safeguards Laboratory (LASAL) and the New Brunswick Laboratory (NBL), has the objective to strengthen the traceability of accountability measurements and ensure adequate quality of safeguards measurements for facilities within Brazil, utilizing test samples characterized and provided by NBL. Recommendations to participants included measurement frequency, number of results per sample and format for reporting results using ISO methods for calculating and expressing measurement uncertainties. In this paper, we discuss the main steps taken by CNEN and NBL aiming at implementing such a program and the expected results, in particular the impact of uncertainty estimation on the evaluation of performance of each participant laboratory. The program is considered by Brazilian safeguards authorities

  7. The 3rd questionnaire report of safety control on instrument in nuclear medicine laboratory

    International Nuclear Information System (INIS)

    1994-01-01

    The present 3rd survey was aimed at grasping safety control in nuclear medicine examination and the trend for SPECT usage. Questionnaires were sent to 1238 facilities dealing with nuclear medicine; and 1127 facilities (91.0%) responded. The survey period was three years from April 1, 1989 through March 31, 1992. The following 7 items were surveyed: (1) nuclear medicine personnel, (2) nuclear medicine equipments, (3) accidents occurring in nuclear medicine laboratories, (4) risk factors leading to accidents, (5) countermeasures for improving safety control, (6) major breakdown of the machinery and equipment, and (7) demands for makers. Majority of nuclear medicine personnel were male and were less than 50 years old. The number of SPECT equipments increased from 714 in the previous survey to 968. Accidents (personal injuries) and narrow escape from an accident were seen in 45 and 154 cases. Personal injuries such as falling occurred in 37 patients and 8 nuclear medicine personnel. According to nuclear medicine examinations, SPECT was the most common examination associated with accident and narrow escape cases (86/199). Such cases at the beginning of examination were remarkably decreased, as compared with those in the previous two surveys. Accidents were primarily attributable to careless management by personnel. Breakdown of the machinery and equipment was reported in 207 cases. In Item 5, the following contents were presented: heads for examination, personnel's behavior, education, examination equipments, collimators and others. Finally, contents in Item 7 included: equipment design, heads for examination, maintenance or management, data processing, collimators, examination equipments and others. (N.K.)

  8. Proficiency Test Program Involvement as a Tool for External Quality Control for Radiochemistry and Environmental Laboratory, Malaysian Nuclear Agency

    International Nuclear Information System (INIS)

    Nurrul Assyikeen Mohd Jaffary; Wo, Y.M.; Zal U'yun Wan Mahmood; Norfaizal Mohamed; Abdul Kadir Ishak; Noor Fadzilah Yusof; Jalal Sharib

    2016-01-01

    As the only Laboratory in Malaysia under the IAEA Analytical Laboratories for the Measurement of Environmental Radioactivity (ALMERA) Network, the Radiochemistry and Environmental Laboratory (RAS), Malaysian Nuclear Agency participates in the proficiency test programmes organised by ALMERA to achieve mutual acceptance of analytical data. The ALMERA has been providing quality support of proficiency tests using sets of different samples matrices and radionuclide levels typically encountered in environmental and food monitoring laboratories. The involvement of RAS laboratory in the IAEA proficiency tests gives opportunity to improve the laboratory capability and personnel skills in the field of radioactivity testing. (author)

  9. Establishment of nuclear data system - Feasibility study for neutron-beam= facility at pohang accelerator laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Nam Kung, Won; Koh, In Soo; Cho, Moo Hyun; Kim, Kui Nyun; Kwang, Hung Sik; Park, Sung Joo [Pohang Accelerator Laboratory, Pohang (Korea, Republic of)

    1996-12-01

    Nuclear data which have been produced by a few developed countries in the= past are essential elements to many disciplines, especially to nuclear engineering. As we promote our nuclear industry further to the level of advanced countries, we also have to establish the Nuclear Data System to produce and evaluate nuclear data independently. We have studied the possibility to build a neutron-beam facility utilizing accelerator facilities, technologies and man powers at pohang Accelerator Laboratory. We found specific parameters for the PAL 100-MeV electron linac based on the existing klystron, modulator, accelerating tubes and other facilities in the PAL; the beam energy is 60-100 MeV, the beam current for the short pulse (10 ns) is 2 A and for the long pulse is 500 mA and the pulse repetition rate is 60 Hz. We propose a neutron-beam facility using PAL 100-MeV electron linac where we can use a Ta-target for the neutron generation and three different time-of-flight beam lines (10 m, 20 m, and 100 m). One may find that the proposed neutron-beam facility is comparable with other operating neutron facilities in the world. We conclude that the proposed neutron-beam facility utilizing the existing accelerator facility in the PAL would be an excellent facility for neutron data production in combination with the ` Hanaro` facility in KAERI. 8 refs., 11 tabs., 12 figs. (author)

  10. Annual report of Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo, fiscal year 1996

    International Nuclear Information System (INIS)

    1997-08-01

    This report summarizes research and educational activities, operation status of the research facilities of the Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo on fiscal year 1996. This facility has four major research facilities such as fast neutron source reactor 'Yayoi', electron Linac, fundamental experiment facility for nuclear fusion reactor blanket design and high fluence irradiation facility(HIT). Education and research activities are conducted in a wide fields of nuclear engineering using these facilities. The former two facilities are available for various studies by universities all over Japan, facility for nuclear fusion reactor blanket design is utilized for research within the Faculty of Engineering and HIT is used for the research within the University of Tokyo. The facility established a plan to reorganized into a nation wide research collaboration center in fiscal year 1995 and after further discussion of a future program it is decided to hold 'Nuclear energy symposium' periodically after fiscal year 1997 as a part of the activity for appealing the research results to the public. (G.K.)

  11. High Purity Germanium Detector as part of Health Canada's Mobile Nuclear Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Stocki, Trevor J.; Bouchard, Claude; Rollings, John; Boudreau, Marc-Oliver; McCutcheon- Wickham, Rory; Bergman, Lauren [Radiation Protection Bureau, Health Canada, AL6302D, 775 Brookfield Road, Ottawa, K1A 0K9 (Canada)

    2014-07-01

    In the event of a nuclear emergency on Canadian soil, Health Canada has designed and equipped two Mobile Nuclear Labs (MNLs) which can be deployed near a radiological accident site to provide radiological measurement capabilities. These measurements would help public authorities to make informed decisions for radiation protection recommendations. One of the MNLs has been outfitted with a High Purity Germanium (HPGe) detector within a lead castle, which can be used for identification as well as quantification of gamma emitting radioisotopes in contaminated soil, water, and other samples. By spring 2014, Health Canada's second MNL will be equipped with a similar detector to increase sample analysis capacity and also provide redundancy if one of the detectors requires maintenance. The Mobile Nuclear Lab (MNL) with the HPGe detector has been successfully deployed in the field for various exercises. One of these field exercises was a dirty bomb scenario where an unknown radioisotope required identification. A second exercise was an inter-comparison between the measurements of spiked soil and water samples, by two field teams and a certified laboratory. A third exercise was the deployment of the MNL as part of a full scale nuclear exercise simulating an emergency at a Canadian nuclear power plant. The lessons learned from these experiences will be discussed. (authors)

  12. Understanding the corrosion phenomena to organize the nondestructive evaluation programs in the nuclear power plants; Connaitre les phenomenes de corrosion pour organiser les programmes d'end dans les centrales nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Berge, J.Ph. [Federation Europeenne de Corrosion, 75 - Paris (France); Samman, J. [Electricite de France (EDF), Div. du Production Nucleaire, 75 - Paris (France)

    2001-07-01

    The french nuclear power plants used PWR which components revealed many corrosion defects of different shapes as stress corrosion cracks or pits. Understanding the corrosion processes will help the inspection of in service power plants. The following examples describe some corrosion cases and present the corresponding developed control methods: corrosion on condenser, secondary circuit pipes and corrosion-erosion, steam generator pipes, vessels head penetration. (A.L.B.)

  13. Educating Next Generation Nuclear Criticality Safety Engineers at the Idaho National Laboratory

    International Nuclear Information System (INIS)

    Bess, J.D.; Briggs, J.B.; Garcia, A.S.

    2011-01-01

    One of the challenges in educating our next generation of nuclear safety engineers is the limitation of opportunities to receive significant experience or hands-on training prior to graduation. Such training is generally restricted to on-the-job-training before this new engineering workforce can adequately provide assessment of nuclear systems and establish safety guidelines. Participation in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) and the International Reactor Physics Experiment Evaluation Project (IRPhEP) can provide students and young professionals the opportunity to gain experience and enhance critical engineering skills. The ICSBEP and IRPhEP publish annual handbooks that contain evaluations of experiments along with summarized experimental data and peer-reviewed benchmark specifications to support the validation of neutronics codes, nuclear cross-section data, and the validation of reactor designs. Participation in the benchmark process not only benefits those who use these Handbooks within the international community, but provides the individual with opportunities for professional development, networking with an international community of experts, and valuable experience to be used in future employment. Traditionally students have participated in benchmarking activities via internships at national laboratories, universities, or companies involved with the ICSBEP and IRPhEP programs. Additional programs have been developed to facilitate the nuclear education of students while participating in the benchmark projects. These programs include coordination with the Center for Space Nuclear Research (CSNR) Next Degree Program, the Collaboration with the Department of Energy Idaho Operations Office to train nuclear and criticality safety engineers, and student evaluations as the basis for their Master's thesis in nuclear engineering.

  14. Educating Next Generation Nuclear Criticality Safety Engineers at the Idaho National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    J. D. Bess; J. B. Briggs; A. S. Garcia

    2011-09-01

    One of the challenges in educating our next generation of nuclear safety engineers is the limitation of opportunities to receive significant experience or hands-on training prior to graduation. Such training is generally restricted to on-the-job-training before this new engineering workforce can adequately provide assessment of nuclear systems and establish safety guidelines. Participation in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) and the International Reactor Physics Experiment Evaluation Project (IRPhEP) can provide students and young professionals the opportunity to gain experience and enhance critical engineering skills. The ICSBEP and IRPhEP publish annual handbooks that contain evaluations of experiments along with summarized experimental data and peer-reviewed benchmark specifications to support the validation of neutronics codes, nuclear cross-section data, and the validation of reactor designs. Participation in the benchmark process not only benefits those who use these Handbooks within the international community, but provides the individual with opportunities for professional development, networking with an international community of experts, and valuable experience to be used in future employment. Traditionally students have participated in benchmarking activities via internships at national laboratories, universities, or companies involved with the ICSBEP and IRPhEP programs. Additional programs have been developed to facilitate the nuclear education of students while participating in the benchmark projects. These programs include coordination with the Center for Space Nuclear Research (CSNR) Next Degree Program, the Collaboration with the Department of Energy Idaho Operations Office to train nuclear and criticality safety engineers, and student evaluations as the basis for their Master's thesis in nuclear engineering.

  15. Some Recent Technology Developments From The Uk's National Nuclear Laboratory To Enable Hazard Characterisation For Nuclear Decommissioning Applications

    International Nuclear Information System (INIS)

    Farfan, E.; Foley, T.

    2010-01-01

    Under its programme of self investment Internal Research and Development (IR and D), the UK's National Nuclear Laboratory (NNL) is addressing the requirement for development in technology to enable hazard characterisation for nuclear decommissioning applications. Three such examples are described here: (1) RadBall developed by the NNL (patent pending) is a deployable baseball-sized radiation mapping device which can, from a single location, locate and quantify radiation hazards. RadBall offers a means to collect information regarding the magnitude and distribution of radiation in a given cell, glovebox or room to support the development of a safe, cost effective decontamination strategy. RadBall requires no electrical supplies and is relatively small, making it easy to be deployed and used to map radiation hazards in hard to reach areas. Recent work conducted in partnership with the Savannah River National Laboratory (SRNL) is presented. (2) HiRAD (patent pending) has been developed by the NNL in partnership with Tracerco Ltd (UK). HiRAD is a real-time, remotely deployed, radiation detection device designed to operate in elevated levels of radiation (i.e. thousands and tens of thousands of Gray) as seen in parts of the nuclear industry. Like the RadBall technology, the HiRAD system does not require any electrical components, the small dimensions and flexibility of the device allow it to be positioned in difficult to access areas (such as pipe work). HiRAD can be deployed as a single detector, a chain, or as an array giving the ability to monitor large process areas. Results during the development and deployment of the technology are presented. (3) Wireless Sensor Network is a NNL supported development project led by the University of Manchester (UK) in partnership with Oxford University (UK). The project is concerned with the development of wireless sensor network technology to enable the underwater deployment and communication of miniaturised probes allowing pond

  16. Scale Effects in Laboratory and Pilot-Plant Reactors for Trickle-Flow Processes Les conséquences de l'extrapolation appliquée aux procédés à écoulement ruisselant réalisés en laboratoire et dans les réacteurs des unités-pilotes

    Directory of Open Access Journals (Sweden)

    Sie S. T.

    2006-11-01

    Full Text Available Research and development studies in a laboratory are necessarily conducted on a scale which is orders of magnitude smaller than that in commercial practice. In the case of the development and commercialization of an unprecedented novel process technology, available laboratory results have to be translated into envisaged technology on a commercial scale, i. e. the problem is that of scaling-up. However, in many circumstances the commercial technology is more or less defined as far as type of reactor is concerned and laboratory studies are concerned with the generation of predictive information on the behaviour of new catalysts, alternative feedstocks, etc. , in such a reactor. In many cases the complexity of feed composition and reaction kinetics preclude the prediction to be made on the basis of a combination of fundamental kinetic data and computer models, so that there is no other option than to simulate the commercial reactor on a laboratory scale, i. e. the problem is that of scaling-down. From the point of view of R & D Defficiency, the scale of the laboratory experiments should be as small as possible without detracting from the meaningfulness of the results. In the present paper some problems in the scaling-down of a trickle-flow reactor as applied in hydrotreating processes to kinetically equivalent laboratory reactors of different sizes will be discussed. Two main aspects relating to inequalities in fluid dynamics resulting from the differences in scale will be treated in more detail, viz. deviations from ideal plug flow and non ideal wetting or irrigation of the catalyst particles. Although a laboratory reactor can never be a true small-scale replica of a commercial trickle-flow reactor in all respects, it can nevertheless be made to provide representative data as far as the catalytic conversion aspects are concerned. By ressorting to measures such as catalyst bed dilution with fine catalytically inert material it proves possible to

  17. Summary of nuclear plant aging research at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Eissenberg, D.M.

    1991-01-01

    Oak Ridge National Laboratory (ORNL) has been a major contributor to the Nuclear Regulatory Commission (NRC) Nuclear Plant Aging Research Program since its inception. The research at ORNL has consisted primarily of the preparation of comprehensive aging assessments and other studies of safety related and other components and systems. The components and systems have been identified and prioritized based on risk considerations, as well as by operating experience. In each case, ORNL has been preparing a Phase 1 assessment which summarizes design features, operating conditions, and stressors which lead to degradation and failure; identified parameters which could be used to detect, trend and differentiate the degradations; and proposed potential inspection, surveillance, and monitoring methods which could be applied to the parameters. Where appropriate, Phase 2 assessments have been prepared, which verify and recommend inspection, surveillance and monitoring methods based on vendor information, laboratory and field tests, and in-situ inspections and tests. Finally, Phase 3 assessments are prepared which provide recommendations regarding implementing the inspection, surveillance and monitoring methods, and provide recommendations regarding criteria to be applied. Other activities include providing assistance to NRC/Nuclear Regulatory Research and regional offices as requested, and participation in ASME and IEEE codes and standards

  18. Implementation of the Immersive Virtual Reality Laboratory in Nuclear Engineering Institute

    International Nuclear Information System (INIS)

    Mol, Antonio Carlos de Abreu; Grecco, Claudio Henrique dos Santos; Carvalho, Paulo Victor R.; Oliveira, Mauro Vitor de; Santos, Isaac J.A. Luquetti; Augusto, Silas Cordeiro; Viana Filho, Alfredo Marques

    2005-01-01

    The Immersive Virtual Reality Laboratory under development in Human System Interface Laboratory constitute a powerful general-purpose facility for experimental and computational work on human perception and perceptually guided action. Virtual reality or virtual environment are computer generated environments with and within people can interact. The advantage of VR is that people can be immersed by the simulated environment, which would sometimes be unavailable due to cost, safety, or perceptual restrictions in the real environment. There are many applications of virtual reality on the nuclear area. Training is one of the most common of them. A significant advantage of a virtual training environment over a real one is it's enormous flexibility. A virtual environment can be used as the basis for training in any number of different scenarios, so that trainees can learn to cope with many different situations, some of which may be impossible to prepare for any other way. Another advantage of using virtual environments for training purposes is that trainees learn by actively performing actions. This has a significant effect on their ability to retain what they learn, and is clearly superior to passive training techniques, such as videos and books, for training where spatial understanding is important. This kind of Laboratory is the first in Brazilian nuclear area. A safe virtual environment can be used to simulate a real environment that is either too dangerous, complex, or expensive to training. Virtual environments can therefore be used to increase safety standards, improve efficiency, and reduce overall training costs. (author)

  19. Cyclotron laboratory in the Institute of Nuclear Studies of the Hungarian Academy of Sciences

    International Nuclear Information System (INIS)

    Gal'chuk, A.V.; Korolev, L.E.; Stepanov, A.V.

    1985-01-01

    The status of the development of cyclotron laboratory in the Institute for Nuclear Research of the Hungarian Academy of Sciences is discussed. The MGTS-20Eh isochronous cyclotron is to be mounted in the laboratory. Obtaining of accelerated proton beams is planned (energy of 5-18 MeV, internal beam current - 200 μA, external beam current - 50 μA), deuterons (3-10 MeV, 300 μA, 50 μA), H 3 +2 ions (7-27 MeV, 50 μA, 25 μA) and He 4 +2 (6-20 MeV, 50 μA, 25 μA). Fundamental researches in the field of atomic and nuclear physics applied investigations in the field of analysis of high purity materials, radiobiological investigations in the field of medicine and agriculture are to be performed in the laboratory. The cyclotron is to be used for production and application of short-lived radioisotopes and radiation testing machine parts

  20. Assessment of internal and external exposure to ionizing radiation in laboratories of nuclear medicine and radiotherapy

    International Nuclear Information System (INIS)

    Adamiak-Ziemba, J.; Doniec, J.; Kocznow, W.; Hawrynski, M.

    1985-01-01

    The investigations with determination of radioisotopes in urine led to detection of contamination with 99m Tc and radioactive iodine. The measurements and dosimetry of external radiation demonstrated that workers in laboratories of radioisotope diagnosis received a mean annual equivalent doses amounted less than 5% of the permissible dose for persons with occupational exposure. It was also established that external exposure was mainly responsible for this. The data about the levels of internal exposure in laboratories of nuclear medicine and radiotherapy demonstrated that introduction of a permanent central system of control of internal contamination of workers would be useless since the observation of the already accepted principles of radiological protection is sufficient for avoiding contamination. (author)

  1. Decommissioning of the nuclear facilities at Risoe National Laboratory. Descriptions and cost assessment

    International Nuclear Information System (INIS)

    Lauridsen, Kurt

    2001-02-01

    The report is the result of a project initiated by Risoe National Laboratory in June 2000 on request from the Minister of Research and Information Technology. It describes the nuclear facilities at Risoe National Laboratory to be decommissioned and gives an assessment of the work to be done and the costs incurred. Three decommissioning scenarios were considered with decay times of 10, 25 and 40 years for the DR 3 reactor. The assessments conclude, however, that there will not be much to gain by allowing for the longer decay periods; some operations still will need to be performed remotely. Furthermore, the report describes some of the legal and licensing framework for the decommissioning and gives an assessment of the amounts of radioactive waste to be transferred to a Danish repository. (au)

  2. Decommissioning of the nuclear facilities at Risoe National Laboratory. Descriptions and cost assessment[Denmark

    Energy Technology Data Exchange (ETDEWEB)

    Lauridsen, Kurt [ed.

    2001-02-01

    The report is the result of a project initiated by Risoe National Laboratory in June 2000 on request from the Minister of Research and Information Technology. It describes the nuclear facilities at Risoe National Laboratory to be decommissioned and gives an assessment of the work to be done and the costs incurred. Three decommissioning scenarios were considered with decay times of 10, 25 and 40 years for the DR 3 reactor. The assessments conclude, however, that there will not be much to gain by allowing for the longer decay periods; some operations still will need to be performed remotely. Furthermore, the report describes some of the legal and licensing framework for the decommissioning and gives an assessment of the amounts of radioactive waste to be transferred to a Danish repository. (au)

  3. University of Wisconsin Nuclear Reactor Laboratory, Madison, Wisconsin. Annual report, Fiscal Year 1982-1983

    International Nuclear Information System (INIS)

    Cashwell, R.J.

    1983-01-01

    Three Nuclear Engineering Department classes make use of the reactor. Forty-eight students enrolled in NE 231 participated in a two-hour laboratory session introducing students to rector behavior characteristics. Twelve hours of reactor operating time were devoted to this session. NE 427 was offeed in the fall semester and had an enrollment of sixteen. Several NE 427 experiments use materials that are activated in the reactor. One experiment entitled Radiation Survey requires that students make measurements of radiation levels in and around the reactor laboratory. The irradiations in support of NE 427 and the radiation survey take place during normal isotope production runs, so no reactor time is specifically devoted to NE 427. The enrollment in NE 428 was twenty-four, as it was offered in both semesters

  4. Radiological risk guidelines for nonreactor nuclear facilities at the Pacific Northwest Laboratory

    International Nuclear Information System (INIS)

    Lucas, D.E.; Ikenberry, T.A.

    1994-03-01

    Radiological risk evaluation guidelines for the public and workers have been developed at the Pacific Northwest Laboratory (PNL) based upon the Nuclear Safety Policy of the US Department of Energy (DOE) established in Secretary of Energy Notice SEN-35-91 (DOE 1991). The DOE nuclear safety policy states that the general public be protected-such that no individual bears significant additional risk to health and safety from the operation of a DOE nuclear facility above the risks to which members of the general population are normally exposed. The radiological risk evaluation guidelines developed at PNL are unique in that they are (1) based upon quantitative risk goals and (2) provide a consistent level of risk management. These guidelines are used to evaluate the risk from radiological accidents that may occur during research and development activities at PNL. A safety analyst uses the frequency of the potential accident and the radiological dose to a given receptor to determine if the accident consequences meet the objectives of the Nuclear Safety Policy

  5. University of Colorado at Boulder Nuclear Physics Laboratory technical progress report

    International Nuclear Information System (INIS)

    Peterson, R.J.

    1991-01-01

    This report summarizes experimental work carried out between October 1, 1990, the closing of our Progress Report, and August 14, 1991 at the Nuclear Physics Laboratory of the University of Colorado, Boulder, under contract DE-FG02-ER40269 with the United States Department of Energy. This contract supports broadly based experimental work in intermediate energy nuclear physics. The program includes pion-nucleon studies at TRIUMF and LAMPF, inelastic pion scattering and charge exchange reactions at LAMPF, and nucleon charge exchange at LAMPF/NTOF. The first results of spin-transfer observables in the isovector (rvec p,rvec n) reaction are included in this report. Our data confirm the tentative result from (rvec p,rvec p') reactions that the nuclear isovector spin response shows neither longitudinal enhancement nor transverse queching. Our program in quasifree scattering of high energy pions shows solid evidence of isoscalar enhancement of the nuclear nonspin response. We include several comparisons of the quasifree scattering of different probes. Results from our efforts in the design of accelerator RF cavities are also included in this report

  6. A study on the establishment of habitability requirement for enviromental laboratory in nuclear emergency

    International Nuclear Information System (INIS)

    Khang, Byung Oui

    2003-01-01

    The Establishment of the habitability requirement for Environmental Laboratory (EL) was required to decide the time of movement to a backup EL. The habitability criteria of the EL located inside plum pathway emergency planning zone was established including the alarm setpoint of the area radiation monitor based on the operational intervention level recommended by IAEA. The MDA of analysis equipments were established based on the generic action level recommended by IAEA. The countermeasures for the loss of habitability of EL was established by defined the emergency response activity at EL in nuclear emergency

  7. The balanced scorecard advantage: Driving strategic change into Canada's nuclear laboratory site operations

    International Nuclear Information System (INIS)

    Lafreniere, P.; Weeks, D.

    2001-01-01

    The challenges presented by the size, diversity, complexity and history of the Facilities and Nuclear Operations (FNO) Group at AECL's Chalk River Laboratories (CRL) required a change to the traditional management approach. As a result, a strategy was adopted that focused on integrating contemporary business practices such as process mapping, activity based management and use of the Balanced Scorecard methodology into the operational culture at CRL. In addition, revitalization of the performance management methods process was undertaken to provide a tool for assessment of business and individual performance. performance. (author)

  8. USDOE Laboratory views on U.S.-Russian partnership for nuclear security

    International Nuclear Information System (INIS)

    Kempf, C.R.

    1998-01-01

    This paper summarizes an analysis of the US-Russian Nuclear Material Protection, Control and Accounting (MPC and A) Program, developed on the basis of extensive discussions with US laboratory participants as well as personal experience. Results of the discussions have been organized into three main areas: Technical/MPC and A Progress; Programmatic and Administrative Issues; and Professional Aspects, Implications for MPC and A effectiveness, for MPC and A sustainability, and for future relations and collaboration are derived. Suggested next steps are given

  9. Remote handling equipment for laboratory research of fuel reprocessing in Nuclear Research Institute at Rez

    International Nuclear Information System (INIS)

    Fidler, J.; Novy, P.; Kyrs, M.

    1985-04-01

    Laboratory installations were developed for two nuclear fuel reprocessing methods, viz., the solvent extraction process and the fluoride volatility process. The apparatus for solvent extraction reprocessing consists of a pneumatically driven rod-chopper, a dissolver, mixer-settler extractors, an automatic fire extinguishing device and other components and it was tested using irradiated uranium. The technological line for the fluoride volatility process consists of a fluorimater, condensers, sorption columns with NaF pellets and a distillation column for the separation of volatile fluorides from UF 6 . The line has not yet been tested using irradiated fuel. Some features of the remote handling equipment of both installations are briefly described. (author)

  10. Laboratory training manual on the use of nuclear techniques in animal parasitology

    International Nuclear Information System (INIS)

    1982-01-01

    The Manual is designed for specialist training in the use of nuclear techniques in animal parasitology. The theoretical part contains a general introduction to experimental work in this field. Laboratory exercises are divided into Basic Exercises (17) and Applied Exercises (25) oriented to research in the immunology and pathogenesis of host-parasite interactions using radioisotopic methods and to disease management through the use of radiation-attenuated vaccines. The closing part contains a number of practical guidelines and data for work with radioisotopes in general and for the use of radioisotopic methods in animal parasitology

  11. Facilities for post-irradiation examination of experimental fuel elements at Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Mizzan, E.; Chenier, R.J.

    1979-10-01

    Expansion of post-irradiation facilities at the Chalk River Nuclear Laboratories and steady improvement in hot-cell techniques and equipment are providing more support to Canada's reactor fuel development program. The hot-cell facility primarily used for examination of experimental fuels averages a quarterly throughput of 40 elements and 110 metallographic specimens. New developments in ultrasonic testing, metallographic sample preparation, active storage, active waste filtration, and fissile accountability are coming into use to increase the efficiency and safety of hot-cell operations. (author)

  12. Wireless network development for the automatic registration of parameters in laboratories of nuclear analytical techniques

    International Nuclear Information System (INIS)

    Tincopa, Jean Pierre; Baltuano, Oscar; Bedregal, Patricia

    2015-01-01

    This paper presents in detail the development of a low-cost wireless network for automatic recording of temperature and relative humidity parameters in the laboratory of nuclear analytical techniques. This prototype has a DHT22 sensor which gives us both parameters with high precision and are automatically read and displayed by a ATmega328P microcontroller. This data is then transmitted through transceivers Xbee Pro S2B forming a mesh network for real time storage using an RTC (Real Time Clock). We present the experimental results obtained in its implementation. (author)

  13. Treatment and final disposal of nuclear waste. Aespoe hard rock laboratory

    International Nuclear Information System (INIS)

    1992-09-01

    The scientific investigations within SBK's research programme are a part of the work of designing a deep repository and identifying and investigating a suitable site. A balanced appraisal of the facts, requirements and assessments presented in connection with the preparation of R and D-programme 86 led to the proposal to construct an underground research laboratory. This proposal was presented in the aforementioned research programme and was very positively recived by the reviewing bodies. In the autumn of 1986, SKB initiated the field work for the siting of an underground laboratory, the Aespoe hard rock laboratory, in the Simpevarp area in the municipality of Oskarshamn. At the end of 1988, SKB arrived at a decision in principle to site the facility on southern Aespoe about 2 km north of the Oskarshamn nuclear power station. After regulatory review, SKB ordered the excavation of the access tunnel to the Aespoe hard rock laboratory to commence in the autumn of 1990. In conjunction with the tunneling work, which has now (September 1992) reached a depth of more than 200 m, a large number of investigations have been carried out. This background report to SKB's RD and D-programme 92 is based on the previous and 89 /2/. The report provides a general background and presents goals, projects results obtained to date and future work. Compared to the previous background reports, more space is devoted here to experiment planning and the future demonstration programme. (au)

  14. Annual report of Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo, fiscal year 1994

    International Nuclear Information System (INIS)

    1995-08-01

    This annual report is the summary of the research and education activities, the state of operating research facilities and others in fiscal year 1994 in this Research Laboratory. In this Research Laboratory, there are four main installations, namely the fast neutron source reactor 'Yayoi', the electron linear accelerator, the basic experiment facility for the design of nuclear fusion reactor blanket and the heavy irradiation research facility. The former two are put to the joint utilization by all Japanese universities, the blanket is to that within Faculty of Engineering, and the HIT is to that within this university. The fast neutron science research facility, the installation of which was approved in 1993 as the ancillary equipment of the Yayoi, has been put to the joint utilization for all Japan, and achieved good results. In this report, the management and operation of these main installations, research activities, the publication of research papers,graduation and degree theses, the publication of research papers, graduation and degree theses, the events in the Laboratory for one year, the list of the visitors to the Laboratory, the list of the records of official trips to foreign countries and others, and the list of UTNL reports are described. (K.I.)

  15. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2000-2001

    International Nuclear Information System (INIS)

    Astier, Pierre; Bassler, Ursula; Levy, Jean-Michel; Cossin, Isabelle; Mathy, Jean-Yves

    2002-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2000-2001: 1 - Forewords; 2 - Scientific and technical activities of the laboratory: Physics with accelerators (CP Violation, hadronic physics, proton-antiproton physics, Neutrino beams, LEP, LHC, future linear electron collider); Physics without accelerators (extreme energy cosmic radiation, Cosmology and supernovae, high-energy gamma astronomy); theoretical physics (QCD, phenomenological approaches); 3 - Technical and administrative activities (electronics, computers, mechanics departments, Administration and general services); 4 - Laboratory life (Teaching, training, Internal activities); 5 - Dissemination of scientific information; 6 - List of publications; 7 - staff

  16. Nuclear and high-energy physics laboratory - LPNHE. Activity report 1998-1999

    International Nuclear Information System (INIS)

    Vaissiere, Christian de la; Banner, Marcel; Faivre, Maria; Moine, Marguerite; Dumas, Jean-Marc; Jos, Jeanne

    2000-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 1998-1999: 1 - Forewords; 2 - Physics experiments: LHC Physics with ATLAS, search for new physics at LEP, DIRAC experiment, Neutrinos oscillation with NOMAD, TONIC and HERA-H1 experiments, CP Violation (BaBar), DΦ experiment at Tevatron, high-energy gamma astronomy, Supernovae, Pierre Auger Laboratory); 3 - Technical activities and means (electronics, computers, mechanics departments); 4 - Laboratory life (Teaching, Administration and general services, Internal and external activities); 5 - Dissemination of scientific information; 6 - List of publications; 7 - staff

  17. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2002-2003

    International Nuclear Information System (INIS)

    Dagoret-Campagne, Sylvie; Roos, Lydia; Schwemling, Philippe; Cossin, Isabelle; Mathy, Jean-Yves

    2004-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2002-2003: 1 - Forewords; 2 - Scientific and technical activities of the laboratory: Physics with accelerators (CP Violation, proton-antiproton physics, LHC, Neutrino beams, LEP, future linear electron collider); Physics without accelerators (extreme energy cosmic radiation, Cosmology and supernovae, high-energy gamma astronomy); theoretical physics (QCD, phenomenological approaches); 3 - Technical and administrative activities (electronics, computers, mechanics departments, Administration and general services); 4 - Laboratory life (Teaching, training, Internal activities); 5 - Dissemination of scientific information; 6 - List of publications; 7 - Appendix: staff

  18. Nuclear and high-energy physics laboratory - LPNHE. Activity report 1996-1997

    International Nuclear Information System (INIS)

    Vaissiere, Christian de la; Boniface, Nicole; Dumas, Jean-Marc; Jos, Jeanne

    1998-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 1996-1997: 1 - Forewords; 2 - Physics experiments: LHC Physics with ATLAS, search for new physics at LEP (DELPHI), Neutrinos oscillation DIRAC experiment, Neutrinos oscillation (NOMAD, TONIC), HERA-H1 experiment, CP Violation (BaBar), DΦ experiment at Tevatron, study of gamma radiation sources (CAT), Supernovae, Auger Laboratory project; 3 - Technical activities and means (electronics, computers, mechanics departments); 4 - Laboratory life (Teaching, Administration and general services, Internal and external activities); 5 - Dissemination of scientific information; 6 - List of publications; 7 - staff

  19. Anisotropic Rotational Diffusion Studied by Nuclear Spin Relaxation and Molecular Dynamics Simulation: An Undergraduate Physical Chemistry Laboratory

    Science.gov (United States)

    Fuson, Michael M.

    2017-01-01

    Laboratories studying the anisotropic rotational diffusion of bromobenzene using nuclear spin relaxation and molecular dynamics simulations are described. For many undergraduates, visualizing molecular motion is challenging. Undergraduates rarely encounter laboratories that directly assess molecular motion, and so the concept remains an…

  20. LabView Based Nuclear Physics Laboratory experiments as a remote teaching and training tool for Latin American Educational Centers

    International Nuclear Information System (INIS)

    Sajo-Bohus, L.; Greaves, E. D.; Barros, H.; Gonzalez, W.; Rangel, A.

    2007-01-01

    A virtual laboratory via internet to provide a highly iterative and powerful teaching tool for scientific and technical discipline is given. The experimenter takes advantage of a virtual laboratory and he can execute nuclear experiment at introductory level e.g. Gamma ray detection with Geiger-Mueller Counter at remote location using internet communication technology

  1. Discourse, Power, and Knowledge in the Management of "Big Science": The Production of Consensus in a Nuclear Fusion Research Laboratory.

    Science.gov (United States)

    Kinsella, William J.

    1999-01-01

    Extends a Foucauldian view of power/knowledge to the archetypical knowledge-intensive organization, the scientific research laboratory. Describes the discursive production of power/knowledge at the "big science" laboratory conducting nuclear fusion research and illuminates a critical incident in which the fusion research…

  2. Country-wide quality control of equipment in Norwegian laboratories performing in vivo nuclear medicine examinations

    International Nuclear Information System (INIS)

    Skretting, A.; Rootwelt, K.; Berthelsen, T.

    1984-01-01

    The report presents the methods used and the results obtained in quality control tests performd in all Norwegian hospital laboratories performing in vivo nuclear medicine examinations. The tests included activity meters and scintillation cameras. The activity meters were tested by means of calibrated, long-lived radioactive sources. The quality of these instruments were judged to be satisfactory for moderate and high activities, non of them showing a deviation of more than 10% from the calibration value. Deviations were larger at low activities and were for some laboratories unacceptable. The scintillation cameras test included studies of flood field (homogeneity), geometrical resolution and energy resolution, as well as measurements of count rate characteristics and sensitivity. 40% of the cameras were judged to have flood field responses with satisfactory homogeneity, whereas 32% of the cameras had a satisfactory resolution ability. A liver/abdomen phantom test was carried out by the staff of the actual laboratory. This test proved that only 20% of the laboratories had a satisfactory total performance, managing to detect and describe satisfactorily 4 out of 5 simulated defects in the liver phantom. Lack of information density and insufficient number of projections was the main reason for unsatisfactory results with good cameras. It is recommended that quality control equipment as used in the described tests should be made available to Norwegian hospitals for self assessment. Regular quality assurance tests as recommended by the Norwegian Association for Radiation Physics and Norwegian Society of Nuclear Medicine should be implemented in all hospitals. Moreover, a practical training course in quality assurance should be arranged. (RF)

  3. The disappointments for nuclear energy in Japan; Les deconvenues pour l'energie nucleaire au Japon

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    Several dysfunctions are reported in this paper: A reactor (Onagawa) closed after a nitrogen leakage; a small leakage of radioactive water in the nuclear power plant of Mihama assessment raised to five deaths, the operator stops its nuclear power plants for inspection, the Japan face to its ageing nuclear power plants, the truth about the cost of M.O.X., the seven reactors of Japan closed for inspection after cracks and leaks hidden to authorities, Tokai MURA accident. (N.C.)

  4. Nuclear Energy, a way for tomorrow spacecrafts; L'energie nucleaire, une voie pour les vaisseaux spatiaux de demain

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    To better explore the solar system, the NASA will uses new propulsion modes, in particular the nuclear energy. These articles present the research programs in the domain and the particularities of the nuclear energy in the projects. (A.L.B.)

  5. The Iran nuclear ambitions and the international consequences; Les ambitions nucleaires de l'Iran et leurs consequences internationales

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-01-15

    This analysis of the Iran situation concerning the nuclear policy, is presented and discussed in three parts: the data and hypothesis of the iranian nuclear program, the regional strategy of Iran and evolution scenario and their consequences. (A.L.B.)

  6. Proposed approach for bedrock characterization at Chalk River Nuclear Laboratories for waste disposal

    International Nuclear Information System (INIS)

    Heystee, R.J.; Dixon, D.F.

    1985-07-01

    Low- and intermediate-level wastes (L AND ILW) are produced at the Chalk River Nuclear Laboratories (CRNL) by the operation of reactors for nuclear research and development and by the production of radioisotopes. CRNL also manages L and ILW produced by Canadian research laboratories, universities, hospitals and some industries. An option that is being considered for the disposal of some of these wastes is to emplace them in a shallow rock cavity in fractured crystalline bedrock on the CRNL property. To design such a disposal facility and to evalute its long-term performance, data must be obtained on the geologic and hydrogeologic characteristics of the site. Over the past several years, a variety of airborne, ground surface and borehole geological, geophysical and/or hydrogeological methods have been used to acquire data on some rock mass discontinuities at CRNL. The techniques which are apparently more useful for acquiring these data are described and a proposed approach to site characterization for a shallow rock cavity at CRNL is outlined

  7. Material handling for the Los Alamos National Laboratory Nuclear Storage Facility

    International Nuclear Information System (INIS)

    Pittman, P.; Roybal, J.; Durrer, R.; Gordon, D.

    1999-01-01

    This paper will present the design and application of material handling and automation systems currently being developed for the Los Alamos National Laboratory (LANL) Nuclear Material Storage Facility (NMSF) renovation project. The NMSF is a long-term storage facility for nuclear material in various forms. The material is stored within tubes in a rack called a basket. The material handling equipment range from simple lift assist devices to more sophisticated fully automated robots, and are split into three basic systems: a Vault Automation System, an NDA automation System, and a Drum handling System. The Vault Automation system provides a mechanism to handle a basket of material cans and to load/unload storage tubes within the material vault. In addition, another robot is provided to load/unload material cans within the baskets. The NDA Automation System provides a mechanism to move material within the small canister NDA laboratory and to load/unload the NDA instruments. The Drum Handling System consists of a series of off the shelf components used to assist in lifting heavy objects such as pallets of material or drums and barrels

  8. Estimating HAPs and radionuclide emissions from a laboratory complex at a nuclear processing site

    International Nuclear Information System (INIS)

    Paul, R.A.; Faugl, T.

    1993-01-01

    A unique methodology was developed for conducting an air emission inventory (AEI) at a DOE nuclear processing facility. This methodology involved the use of computer-assisted design (CAD) drawings to document emission points, computerized process drawings to document industrial processes leading to emissions, and a computerized data base of AEI forms to document emission estimates and related process data. A detailed air emissions inventory for operating years 1985--1991 was recently implemented for the entire site using this methodology. One industrial area at the DOE Site is comprised of laboratory facilities that provide direct support to the nuclear reactor and recovery operations, developmental studies to support reactor and separation operations, and developmental studies to support waste handling and storage. The majority of the functions are conducted in a single large building complex wherein bench scale and pilot scale experiments are carried out involving radionuclides, hazardous air pollutants (HAP), and other chemicals reportable under the Clean Air Act Amendments (CAAA) and Superfund Amendments and Re-authorization Act (SARA) Title 111. The results of the inventory showed that HAP and radionuclide emissions from the laboratory complex were relatively minor

  9. Planning of maintenance of electrical equipment in nuclear plants/laboratories [Paper No.: VB-3

    International Nuclear Information System (INIS)

    Narasinga Rao, S.N.; Bhattacharyya, A.K.

    1981-01-01

    Satisfactory operating performance of electrical systems ensures continuous availability of power to the various plants and machinery in nuclear plant and laboratories. For effective optimal functioning of the electrical equipment and to reduce their down time, scheduled planning of maintenance to the equipment is essential. Maintenance of power plant, nuclear or fossil, and industrial plant and research laboratories demands essential ingredients such as right type of trained and motivated technical personnel, adoption of standard procedures for maintenance, adequate safety and protection for equipment, safety procedures adopted in the installation to prevent hazards to the workers, provision of adequate stores and inventories, facilities for quick repairs and testing of equipment and effective planning of procedures for their maintenance. While breakdown maintenance allows equipment to operate before it is repaired or replaced, preventive maintenance makes use of scheduled inspection and periodical equipment overhaul and has little value for predicting future continuous performances of equipment. The engineered maintenance is most advantageous and offers maximum operating time to reduce down time of the equipment while adding predictive testing technique to aid in determining the frequency of overhaul of equipment. The important checks to be conducted and preventive maintenance programme to be scheduled are discussed in this paper. The safety and reliable functioning of the electrical equipment depend on proper optimal design, selection of equipment, their installation, subsequent maintenance and strict compliance with safety regulations. (author)

  10. The Dresden Felsenkeller shallow-underground accelerator laboratory for nuclear astrophysics - Status and first physics program

    Energy Technology Data Exchange (ETDEWEB)

    Ilgner, Ch. [Nuclear Astrophysics group, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Dresden (Germany)

    2015-07-01

    Favored by the low background in underground laboratories, low-background accelerator-based experiments are an important tool to study nuclear reactions involving stable charged particles. This technique has been used for many years with great success at the 0.4 MV LUNA accelerator in the Gran Sasso laboratory in Italy, protected from cosmic rays by 1400 m of rock. However, the nuclear reactions of helium and carbon burning and the neutron source reactions for the astrophysical s-process require higher beam energies than those available at LUNA. Also the study of solar fusion reactions necessitates new data at higher energies. As a result, in the present NuPECC long range plan for nuclear physics in Europe, the installation of one or more higher-energy underground accelerators is strongly recommended. An intercomparison exercise using the same High-Purity Ge detector at several sites has shown that, with a combination of 45 m rock overburden, as can be found in the Felsenkeller underground site in Dresden, and an active veto against the remaining muon flux, in a typical nuclear astrophysics setup a background level can be achieved that is similar to the deep underground scenario as in the Gran- Sasso underground laboratory, for instance. Recently, a muon background study and geodetic measurements were carried out by the REGARD group. It was estimated that the rock overburden at the place of the future ion accelerator is equivalent to 130 m of water. The maximum muon flux measured was 2.5 m{sup -2} sr{sup -1} s{sup -1}, in the direction of the tunnel entrance. Based on this finding, a used 5 MV pelletron tandem accelerator with 250 μA up-charge current and external sputter ion source has been obtained and transported to Dresden. Work on an additional radio-frequency ion source on the high voltage terminal is in progress and far advanced. The installation of the accelerator in the Felsenkeller is expected for the near future. The status of the project and the

  11. Nuclear magnetic resonance of iron-57 nuclei in local fields in yttrium and iron garnets; Resonance magnetique nucleaire des noyaux du fer 57 dans les champs locaux du grenat d'yttrium et de fer

    Energy Technology Data Exchange (ETDEWEB)

    Robert, C. [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1961-07-01

    We have demonstrated the nuclear resonance of {sup 57}Fe nuclei in the local field of each of the two magnetic sub-lattices of yttrium and iron garnets. The resonance frequencies and the relaxation times have been measured as a function of the temperature. (author) [French] Nous avons mis en evidence la resonance nucleaire des noyaux de {sup 57}Fe dans le champ local de chacun des deux sous-reseaux magnetiques du grenat d'yttrium et de fer. Les frequences de resonances et les temps de relaxation ont ete mesures en fonction de la temperature. (auteur)

  12. Report of controls performed by the CRIIRAD laboratory level with the 'Les sauvages' source harnessing at Saint-Sylvestre (Haute-Vienne)

    International Nuclear Information System (INIS)

    2010-05-01

    This document reports analyses performed on drinkable waters distributed in Saint-Sylvestre (France), and more particularly in situ measurements of radioactivity levels, performed within the so called 'Les sauvages' spring catchment. Several aspects are discussed: the volume activity of radon 222 in the water at different moments, and the need to protect the catchment exploitation personnel

  13. Activities developed by the biological dosimetry laboratory of the Autoridad Regulatoria Nuclear - ARN of Argentina

    International Nuclear Information System (INIS)

    Radl, A.; Sapienza, C.E.; Taja, M.R.; Bubniak, R.; Deminge, M.; Di Giorgio, M.

    2013-01-01

    Biological dosimetry (DB) allows to estimate doses absorbed in individuals exposed to ionizing radiation through the quantification of stable and unstable chromosome aberrations (SCA and UCA). The frequency of these aberrations is referred to a calibration dose response curve (in vitro) to determine the doses of the individual to the whole body. The DB is a necessary support for programs of national radiation protection and response systems in nuclear or radiological emergencies in the event of accidental or incidental, single overexposure or large scale. In this context the Laboratory of Dosimetry Biological (LDB) of the Authority Regulatory Nuclear (ARN) Argentina develops and applies different dosimeters cytogenetic from four decades ago. These dosimeters provide a fact more within the whole of the information necessary for an accidental, complementing the physical and clinical dosimetry exposure assessment. The most widely used in the DB biodosimetric method is the quantification of SCA (dicentrics and rings Central) from a sample of venous blood. The LDB is accredited for the trial, under rules IRAM 301: 2005 (ISO / IEC 17025: 2005) and ISO 19238:2004. Test applies to the immediate dosimetry evaluation of acute exposures, all or a large part of the body in the range 0,1-5 Gy. In this context the LDB is part of the Latin American network of DB (LBDNet), BioDoseNet-who and response system in radiological emergencies and nuclear IAEA-RANET, being enabled to summon the LBDNet if necessary

  14. Spent fuel reprocessing and minor actinide partitioning safety related research at the UK National Nuclear Laboratory

    International Nuclear Information System (INIS)

    Carrott, Michael; Flint, Lauren; Gregson, Colin; Griffiths, Tamara; Hodgson, Zara; Maher, Chris; Mason, Chris; McLachlan, Fiona; Orr, Robin; Reilly, Stacey; Rhodes, Chris; Sarsfield, Mark; Sims, Howard; Shepherd, Daniel; Taylor, Robin; Webb, Kevin; Woodall, Sean; Woodhead, David

    2015-01-01

    The development of advanced separation processes for spent nuclear fuel reprocessing and minor actinide recycling is an essential component of international R and D programmes aimed at closing the nuclear fuel cycle around the middle of this century. While both aqueous and pyrochemical processes are under consideration internationally, neither option will gain broad acceptance without significant advances in process safety, waste minimisation, environmental impact and proliferation resistance; at least when compared to current reprocessing technologies. The UK National Nuclear Laboratory (NNL) is developing flowsheets for innovative aqueous separation processes. These include advanced PUREX options (i.e. processes using tributyl phosphate as the extractant for uranium, plutonium and possibly neptunium recovery) and GANEX (grouped actinide extraction) type processes that use diglycolamide based extractants to co-extract all transuranic actinides. At NNL, development of the flowsheets is closely linked to research on process safety, since this is essential for assessing prospects for future industrialisation and deployment. Within this context, NNL is part of European 7. Framework projects 'ASGARD' and 'SACSESS'. Key topics under investigation include: hydrogen generation from aqueous and solvent phases; decomposition of aqueous phase ligands used in separations prior to product finishing and recycle of nitric acid; dissolution of carbide fuels including management of organics generated. Additionally, there is a strong focus on use of predictive process modelling to assess flowsheet sensitivities as well as engineering design and global hazard assessment of these new processes. (authors)

  15. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2010-2012

    International Nuclear Information System (INIS)

    Pain, Reynald; Ghia, Piera L.; Lacour, Didier; Lavergne, Laurence; Billoir, Pierre; Cossin, Isabelle; Cardot, Violaine

    2012-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2010-2012: 1 - Forewords; 2 - Highlights; 3 - Research: Masses and FUNDAMENTAL INTERACTIONS; Matter-antimatter asymmetry; Dark matter and dark energy; Cosmic radiation nature and origin; Publications, communications; 2 - Teaching, training, internships and PhDs; 3 - Competences and technical realisations (electronics and instrumentation, computers, mechanics departments, expertise and valorisation, conference participation, responsibilities); 4 - Laboratory operation (organisation, partnerships, financial and human resources, permanent training, communication and library, health and safety, radiation protection, general services, staff); 5 - Scientific life and communication (seminars, meetings..)

  16. Studying the elimination of pathogenic agents in laboratory animals feed by use of nuclear technique

    International Nuclear Information System (INIS)

    Shahhosseini, G.; Raisali, G.

    2002-01-01

    Laboratory animals are being used all around the world for different kinds of experiments in biological and medical sciences and related fields for the purposes such as prevention, control, diagnosis and treatment of various diseases in livestock, poultry, human, reproduction, breeding, etc. This is very important to keep in the breeding and reproduction environment of laboratory animals, pathogenic microorganisms as low as possible or completely remove them. The most prevailing and important way of such contamination is through feeding laboratory animals. In this research work, it is tried to use gamma radiation as a useful nuclear technique for decrease or resolve the problem. Two kinds of standard forms of diets consumed by rabbit and guinea pig in the form of small pellets and by mouse, rat and hamster in the form of big pellets (with different feed formula) and also two kinds of additive food i.e. dry milk and vitamin C have been examined. Un-irradiated samples have been used for control. Total of 226 samples were irradiated, among which optimum doses were found 25 kilo Gray for both small and big pellets, 18 kilo Gray for dry milk. Since there was not any contamination in vitamin C un-irradiated sample, irradiation was done only to observe the effect of gamma radiation on vitamin C compounds. (Author)

  17. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2012-2014

    International Nuclear Information System (INIS)

    Balland, Christophe; Cossin, Isabelle; Giganti, Claudio; Hardin, Delphine; Lavergne, Laurence; Le Dortz, Olivier; Lenain, Jean-Philippe; Marchiori, Giovanni; Regnault, Nicolas; Varanda De-Sa, Vera; Daigremont, Jean-Jacques

    2015-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2012-2014: 1 - Forewords; 2 - Highlights; 3 - Research: Masses and FUNDAMENTAL INTERACTIONS; Matter-antimatter asymmetry; Dark matter and dark energy; Cosmic radiation nature and origin; Publications, communications; 2 - Teaching, training, internships and PhDs; 3 - Competences and technical realisations (electronics and instrumentation, computers, mechanics, expertise, calculation and technical departments); 4 - Laboratory operation (organisation, partnerships, financial and human resources, permanent training, communication and library, health and safety, radiation protection, general services, staff); 5 - Scientific life and communication (seminars, meetings..)

  18. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2008-2009

    International Nuclear Information System (INIS)

    Pain, Reynald; Guy, Julien; Toussenel, Francois; Laforge, Bertrand; Levy, Jean-Michel; Cossin, Isabelle; Cardot, Violaine

    2011-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2008-2009: 1 - Forewords; 2 - Highlights; 3 - Research: Masses and FUNDAMENTAL INTERACTIONS; Matter-antimatter asymmetry; Dark matter and dark energy; Cosmic radiation nature and origin; Interdisciplinary activities; Publications, communications; Partnerships; 2 - Teaching, training, internships and PhDs; 3 - Competences and technical realisations (electronics and instrumentation, computers, mechanics departments, test facilities); 4 - Laboratory operation (organisation, financial and human resources, permanent training, communication and library, health and safety, general services, staff); 5 - Scientific life and communication (seminars, meetings..)

  19. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2006-2007

    International Nuclear Information System (INIS)

    Debu, Pascal; Ben-Haim, Eli; Hardin, Delphine; Laporte, Didier; Maurin, David; Cossin, Isabelle; Mathy, Jean-Yves

    2008-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2006-2007: 1 - Forewords; 2 - Scientific activities: Physics with accelerators (LHC, Tevatron, CP Violation, ILC, Neutrino Physics); Physics without accelerators (Cosmology, high-energy gamma astronomy, extreme energy cosmic radiation, theoretical physics, physics-biology interface); 3 - Technical and administrative activities (electronics, computers, mechanics departments, Administration and general services); 4 - Laboratory life (Teaching, training, internships and PhDs); 5 - Internal activities (seminars, meetings..); 6 - External activities (Public information, relations with the industry, valorisation..)

  20. Reactor laboratory course for students majoring in nuclear engineering with the Kyoto University Critical Assembly (KUCA)

    International Nuclear Information System (INIS)

    Nishihara, H.; Shiroya, S.; Kanda, K.

    1996-01-01

    With the use of the Kyoto University Critical Assembly (KUCA), a joint reactor laboratory course of graduate level is offered every summer since 1975 by nine associated Japanese universities (Hokkaido University, Tohoku University, Tokyo Institute of Technology, Musashi Institute of Technology, Tokai University, Nagoya University, Osaka University, Kobe University of Mercantile Marine and Kyushu University) in addition to a reactor laboratory course of undergraduate level for Kyoto University. These courses are opened for three weeks (two weeks for the joint course and one week for the undergraduate course) to students majoring in nuclear engineering and a total of 1,360 students have taken the course in the last 21 years. The joint course has been institutionalized with the background that it is extremely difficult for a single university in Japan to have her own research or training reactor. By their effort, the united faculty team of the joint course have succeeded in giving an effective, unique one-week course, taking advantage of their collaboration. Last year, an enquete (questionnaire survey) was conducted to survey the needs for the educational experiments of graduate level and precious data have been obtained for promoting reactor laboratory courses. (author)

  1. Nuclear and high-energy physics laboratory - LPNHE. Activity report 2004-2005

    International Nuclear Information System (INIS)

    Debu, Pascal; Bassler, Ursula; Boratav, Murat; Lacour, Didier; Lebbolo, Herve; Cossin, Isabelle; Mathy, Jean-Yves

    2006-01-01

    The LPNHE is a joint research unit (UMR 7585) of the National Institute of Nuclear Physics and Particle Physics (IN2P3), Institute of the National Centre for Scientific Research (CNRS), UPMC and Paris Diderot Paris 7. It hosts several research teams and technical services (computers, electronics, mechanical), and two support services (administration, logistics). The laboratory is engaged in several major experimental programs pursued in the framework of international collaborations with very large research facilities around the world, centers of particle accelerators and observatories. The research programs cover current issues in particle physics, astro-particle and cosmology. This report presents the activities of the laboratory during the years 2004-2005: 1 - Forewords; 2 - Scientific activities: Physics with accelerators (LHC, Tevatron, CP Violation, future linear electron collider, Neutrino beams); Physics without accelerators (Cosmology and supernovae, high-energy gamma astronomy, extreme energy cosmic radiation, theoretical physics, physics-biology interface); 3 - Technical and administrative activities (electronics, computers, mechanics departments, Administration, health and safety, radiation protection); 4 - Laboratory life (Teaching, training, internships and PhDs); 5 - Internal activities (seminars, meetings..); 6 - External activities (Public information, relations with the industry, valorisation..); 7 - List of publications; 8 - Appendixes: organigram, staff

  2. Dynamic problems of power reactors and analogic devices; Les problemes dynamiques du reacteur de puissance et les machines analogiques

    Energy Technology Data Exchange (ETDEWEB)

    Braffort, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1955-07-01

    The raise of the nuclear physics came with heavy mathematical developments. The analogical installations became especially useful for precise calculations of parameters which depend the running of a reactor. They permit between other to study of kinetic problems and especially ''cybernetics'' of nuclear reactors. It doesn't make a doubt that their use will become widespread, not only in the calculations laboratories, in services for servo-mechanisms study, but also in the control panels of the reactors themselves. (M.B.) [French] L'essor de la physique nucleaire s'est accompagne de lourds developpements mathematiques. Les montages analogiques sont devenus particulierement utiles pour les calculs precis des parametres dont depend le fonctionnement d'un reacteur. Elles permettent entre autre l'etude des problemes cinetiques et surtout ''cybernetiques'' des reacteurs nucleaires. Il ne fait pas de doute que leur usage se generalisera, non seulement dans les laboratoires de calculs, les services d'etudes de servomecanismes, mais aussi pres des tableaux de commande des reacteurs eux-memes. (M.B.)

  3. Development of Biodiversity Laboratory to Support the Establishment of Flora and Fauna Database in the Vicinity of Nuclear Facility

    International Nuclear Information System (INIS)

    Nor Humaira Lau Abdullah; Anis Nadia Mohd Faisol Mahadeven; Mohd Noor Hidayat Adenan

    2015-01-01

    The Biodiversity Laboratory (44128) at Agrotechnology and Biosciences Division (BAB) was developed using One-Off 2014 budget. The renovation works of Seed Technology Laboratory into Biodiversity Laboratory was planned in 2013 and was fully completed in early 2015. This laboratory serves as a centre for development and storage of flora and fauna database. Thus far, this laboratory houses various facilities that befit the function of this laboratory, such as small mammalian and insects sampling tools, herbarium specimen preparation tools, fume chamber, and work benches. Among the activities carried out in this laboratory were sampling and processing of flora, fauna and mushroom specimens collected in the vicinity of nuclear facility besides exhibiting processed/preserved herbaria, mushrooms, fauna and insects specimens. On the other hand, activities planned include cataloguing of existing specimens, online database development, study on ionising radiation towards development of bio indicator, and development of Standard Operating Procedure (SOP). However there are some limitations in terms of tools (supercomputer, camera microscope, photography set-up and drying oven) and not to mention, expertise. In order to overcome the limitations, some recommendations for improvement can be considered for instance fund application, hiring staffs in desired field of expertise (botanist and zoologist) and training's. In summary, this laboratory has potential to support the aspiration of Nuclear Malaysia to be a TSO for national nuclear power development plan in the aspect of environmental and ecosystem protection especially towards non-human biota. (author)

  4. Les aciers inoxydables dans les fixations

    CERN Document Server

    CETIM

    2010-01-01

    Cet ouvrage, qui fait la synthèse de plusieurs travaux menés par le Cetim, propose une vue d'ensemble sur les aciers inoxydables utilisés pour les fixations. Au sommaire : les normes EN, ISO et ATSM qui s'y rapportent , les désignations symboliques , les nuances et caractéristiques mécaniques , les différentes formes de corrosion, les méthodes pour les détecter , les règles du métier , les mises en oeuvre. L'ouvrage comprend plusieurs fiches matériaux et des tableaux qui présentent les équivalences entre les désignations.

  5. Y2K bug and nuclear installations; Le passage a l'an 2000 sur les installations nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Anon

    1999-10-01

    Most nuclear installations except power plants, will be shut down on the eve of new year. By september 1999, EDF will have realized all the corrective and preventive actions that are necessary to pass Y2K. CEA has committed to present to safety authorities a complete report concerning preventive actions in its own basic nuclear installations. Safety authorities plan to organize a crisis center in order to face any problem. (A.C.)

  6. Nuclear Physics Laboratory, University of Colorado technical progress report, 1976 and proposal for continuation of contract

    International Nuclear Information System (INIS)

    1976-01-01

    This report summarizes the work carried out at the Nuclear Physics Laboratory of the University of Colorado during the period November 1, 1975 to November 1, 1976. The low energy nuclear physics section is dominated by light-ion reaction studies which span a wide range. These include both two-neutron and two-proton transfer reactions, charge exchange and inelastic scattering, as well as single nucleon transfer reactions. The nuclei studied vary widely in their mass and characteristics. These reaction studies have been aided by the multi-use scattering chamber which now allows the energy-loss-spectrometer beam preparation system (beam swinger) to shift from charged particle studies to neutron time-of-flight studies with a minimum loss of time. The intermediate energy section reflects the increase in activity accompanying the arrival of LAMPF data and the initiation of (p,d) studies at the Indiana separated-sector cyclotron. The nucleon removal results provided by the π beam at EPICS previous to completion of the spectrometer have shown that nuclear effects dominate this process, so that the widely used free interaction picture is inadequate. The section entitled ''Other Activities'' reveals continuing activities in new applications of nuclear techniques to problems in medicine and biology. Reactions important to astrophysics continue to be investigated and our trace-element program remains at a high level of activity. The theoretical section reports new progress in understanding magnitudes of two-step reactions by inclusion of finite-range effects. A new finite-range program which is fast and economical has been completed. Intermediate energy results include calculations of π-γ angular correlations, low energy π-nucleus interactions, as well as (p,d) and nucleon scattering calculations for intermediate energies

  7. Nuclear systems of the future - generation 4. Proposals of strategic orientations for the nuclear systems of the future; Les systemes nucleaires du futur - generation 4. Propositions d'orientations strategiques pour les systemes nucleaires du futur

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    Several points, specific to France, must be taken into consideration for the long term strategic choice of future nuclear systems, in particular: taking the best profit of the progress potentialities of water reactors, optimizing the opportunities offered by the renewal of power plants in operation, integrating the consequences and the implementation of a strategy of optimized management of radioactive wastes, and looking for improvements that would make nuclear energy an active contributor to sustainable development. The prospective researches carried out by the CEA and its industrial partners have led to propose a R and D strategy with 3 complementary goals: search for innovations for water reactors, development of fast neutron reactors with closed fuel cycle (sodium fast reactor (SFR), gas fast reactor (GFR)), and development of key-technologies for nuclear hydrogen production (very high temperature reactor (VHTR)). The R and D effort concerns also the subcritical systems devoted to transmutation, the new cycle processes for a global management of actinides, and some other nuclear systems like the molten salt reactors (MSR) and the supercritical water reactors (SCWR). This paper presents the R and D strategy for each technology with its priorities, steps, financial means and collaborations. (J.S.)

  8. Nuclear power plant maintenance personnel reliability prediction (NPP/MPRP) effort at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Knee, H.E.; Haas, P.M.; Siegel, A.I.

    1981-01-01

    Human errors committed during maintenance activities are potentially a major contribution to the overall risk associated with the operation of a nuclear power plant (NPP). An NRC-sponsored program at Oak Ridge National Laboratory is attempting to develop a quantitative predictive technique to evaluate the contribution of maintenance errors to the overall NPP risk. The current work includes a survey of the requirements of potential users to ascertain the need for and content of the proposed quantitative model, plus an initial job/task analysis to determine the scope and applicability of various maintenance tasks. In addition, existing human reliability prediction models are being reviewed and assessed with respect to their applicability to NPP maintenance tasks. This paper discusses the status of the program and summarizes the results to date

  9. Low and medium activity nuclear waste disposal characterisation laboratory. Example of Spanish E1 Cabril Disposal Centre Laboratory

    International Nuclear Information System (INIS)

    Boulanger, G.; Augustin, X.

    1993-01-01

    Low and medium activity radioactive waste generated in Spain by power reactors, research laboratories, etc. is stored in the E1 Cabril Disposal Centre. This Centre, based on a French design, provides a characterisation function for the stored waste and corresponding containers. Technicatome, prime contractor for the French disposal centre, and contributing to the design and construction of the E1 Cabril Centre, played an important part in the R and D work for this laboratory, and the manufacture of certain items of equipment. This laboratory, applying experience acquired in France by the CEA, comprises a set of buildings providing for active and inactive test operations

  10. Practical guide to dosimetry as applied in the research reactors of the Saclay and Grenoble nuclear research centers; Guide pratique de la dosimetrie mise en oeuvre dans les reacteurs de recherche du C.E.N./G et du C.E.N./S

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1968-07-01

    Since the problems concerning neutron and gamma flux measurements which arise during irradiation experiments in the reactors in the Grenoble and Saclay Centres are of the same type, and since the solutions found are very often adopted in common, we have attempted to describe the methods we use at the present time. A brief description is given of the production of the detectors, the electronic apparatus; the formulae usually used for the interpretation of the measurements are given. A series of technical data cards give the most commonly used detector characteristics. These cards give the physical characteristics of the detectors, their nuclear constants, if any, the most suitable counting methods and the field of application. (authors) [French] Les problemes de mesures de flux de neutrons et de flux gamma qui se posent pour les experiences irradiees dans les reacteurs des Centres de Grenoble et de Saclay etant du meme type et les solutions trouvees, tres souvent adoptees en commun, nous avons cherche a decrire les methodes que nous pratiquons actuellement. On decrit tres brievement la fabrication des detecteurs, l'appareillage electronique; on rappelle les formules usuelles qui servent dans l'interpretation des mesures. Une serie de fiches techniques rassemble les caracteristiques des detecteurs les plus couramment utilises. Ces fiches indiquent les caracteristiques physiques des detecteurs, leurs constantes nucleaires s'il y a lieu, les methodes de comptage les mieux adaptees et le domaine d'utilisation. (auteurs)

  11. Some aspects of nuclear graphite production in France; Etude generale sur les graphites nucleaires produits en France

    Energy Technology Data Exchange (ETDEWEB)

    Gueron, J; Hering, H [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires; Legendre, A [Pechiney, 75 - Paris (France)

    1958-07-01

    1) Manufacturing: A summary and results on the CEA-Pechiney purification process are given. Variations in the preparation of green pastes and their effects on graphitized material are described. 2) Physical and mechanical properties: Results are given on: - Statistics of dimensional variatior products having square cross-section. - Statistical variation of thermal expansion coefficients and of electrical conductivity. - Density of normals to carbon layer planes and their connexion with thermal expansion. - Stress-strain cycles and conclusions drawn therefrom. - Mechanical resistance and gas permeability of items for supporting fuel elements. 3) Behaviour under radiation: Alteration under radiation of French graphites irradiated either in G1 pile or in experimental piles, and thermal annealing of those alterations, are given. (author)Fren. [French] 1) Fabrication: On resume le procede d'epuration CEA-PECHINEY, ainsi que diverses modalites de preparation des pates et on expose les resultats obtenus. 2) Proprietes physiques et mecaniques: On indique le resultat d'etudes sur: - la statistique des dimensions de produits a section carree. - celle des variations des coefficients de dilatation thermique et de la conductibilite electrique. - la densite des normales aux plans graphitiques et leur connexion avec la dilatation thermique. - la compression mecanique du graphite. - la solidite mecanique et la permeabilite aux gaz de pieces destinees a supporter des cartouches de combustible. 3) Tenue sous rayonnement: Modification sous rayonnement des graphites fran is irradies soit dans la pile G1, soit dans des piles experimentales, et guerison thermique de ces modifications. (auteur)

  12. Global nuclear energy partnership fuels transient testing at the Sandia National Laboratories nuclear facilities : planning and facility infrastructure options

    International Nuclear Information System (INIS)

    Kelly, John E.; Wright, Steven Alan; Tikare, Veena; MacLean, Heather J.; Parma, Edward J.Jr; Peters, Curtis D.; Vernon, Milton E.; Pickard, Paul S.

    2007-01-01

    The Global Nuclear Energy Partnership fuels development program is currently developing metallic, oxide, and nitride fuel forms as candidate fuels for an Advanced Burner Reactor. The Advance Burner Reactor is being designed to fission actinides efficiently, thereby reducing the long-term storage requirements for spent fuel repositories. Small fuel samples are being fabricated and evaluated with different transuranic loadings and with extensive burnup using the Advanced Test Reactor. During the next several years, numerous fuel samples will be fabricated, evaluated, and tested, with the eventual goal of developing a transmuter fuel database that supports the down selection to the most suitable fuel type. To provide a comparative database of safety margins for the range of potential transmuter fuels, this report describes a plan to conduct a set of early transient tests in the Annular Core Research Reactor at Sandia National Laboratories. The Annular Core Research Reactor is uniquely qualified to perform these types of tests because of its wide range of operating capabilities and large dry central cavity which extents through the center of the core. The goal of the fuels testing program is to demonstrate that the design and fabrication processes are of sufficient quality that the fuel will not fail at its design limit--up to a specified burnup, power density, and operating temperature. Transient testing is required to determine the fuel pin failure thresholds and to demonstrate that adequate fuel failure margins exist during the postulated design basis accidents

  13. Global nuclear energy partnership fuels transient testing at the Sandia National Laboratories nuclear facilities : planning and facility infrastructure options.

    Energy Technology Data Exchange (ETDEWEB)

    Kelly, John E.; Wright, Steven Alan; Tikare, Veena; MacLean, Heather J. (Idaho National Laboratory, Idaho Falls, ID); Parma, Edward J., Jr.; Peters, Curtis D.; Vernon, Milton E.; Pickard, Paul S.

    2007-10-01

    The Global Nuclear Energy Partnership fuels development program is currently developing metallic, oxide, and nitride fuel forms as candidate fuels for an Advanced Burner Reactor. The Advance Burner Reactor is being designed to fission actinides efficiently, thereby reducing the long-term storage requirements for spent fuel repositories. Small fuel samples are being fabricated and evaluated with different transuranic loadings and with extensive burnup using the Advanced Test Reactor. During the next several years, numerous fuel samples will be fabricated, evaluated, and tested, with the eventual goal of developing a transmuter fuel database that supports the down selection to the most suitable fuel type. To provide a comparative database of safety margins for the range of potential transmuter fuels, this report describes a plan to conduct a set of early transient tests in the Annular Core Research Reactor at Sandia National Laboratories. The Annular Core Research Reactor is uniquely qualified to perform these types of tests because of its wide range of operating capabilities and large dry central cavity which extents through the center of the core. The goal of the fuels testing program is to demonstrate that the design and fabrication processes are of sufficient quality that the fuel will not fail at its design limit--up to a specified burnup, power density, and operating temperature. Transient testing is required to determine the fuel pin failure thresholds and to demonstrate that adequate fuel failure margins exist during the postulated design basis accidents.

  14. Los Alamos National Laboratory new generation standard nuclear material storage container - the SAVY4000 design

    International Nuclear Information System (INIS)

    Stone, Timothy Amos

    2010-01-01

    Incidents involving release of nuclear materials stored in containers of convenience such as food pack cans, slip lid taped cans, paint cans, etc. has resulted in defense board concerns over the lack of prescriptive performance requirements for interim storage of nuclear materials. Los Alamos National Laboratory (LANL) has shared in these incidents and in response proactively moved into developing a performance based standard involving storage of nuclear material (RD003). This RD003 requirements document has sense been updated to reflect requirements as identified with recently issued DOE M 441.1-1 'Nuclear Material Packaging Manual'. The new packaging manual was issued at the encouragement of the Defense Nuclear Facilities Safety Board with a clear directive for protecting the worker from exposure due to loss of containment of stored materials. The Manual specifies a detailed and all inclusive approach to achieve a high level of protection; from package design and performance requirements, design life determinations of limited life components, authorized contents evaluations, and surveillance/maintenance to ensure in use package integrity over time. Materials in scope involve those stored outside an approved engineered-contamination barrier that would result in a worker exposure of in excess of 5 rem Committed Effective Does Equivalent (CEDE). Key aspects of meeting the challenge as developed around the SAVY-3000 vented storage container design will be discussed. Design performance and acceptance criteria against the manual, bounding conditions as established that the user must ensure are met to authorize contents in the package (based upon the activity of heat-source plutonium (90% Pu-238) oxide, which bounds the requirements for weapons-grade plutonium oxide), interface as a safety class system within the facility under the LANL plutonium facility DSA, design life determinations for limited life components, and a sense of design specific surveillance program

  15. Evolution of the Nuclear Safeguards Performance Laboratory PERLA on the Ispra Site of the Institute for Transuranium Elements

    International Nuclear Information System (INIS)

    Berndt, R.; Abbas, K.; Berthou, V.; De Almeida Carrapico, C.; Forcina, V.; Mayorov, V.; Mortreau, P.; Mosconi, M.; Pedersen, B.; Peerani, P.; Rosas, F.; Tagziria, H.; Tomanin, A.; Rozite, A.; Marin-Ferrer, M.; Crochemore, J.-M.; Roesgen, E.; Janssens, W.A.M.; )

    2015-01-01

    Based upon the experience of many years of operation, the safeguards Performance Laboratory PERLA will be reshaped in the near future (and relocated on the Ispra site such as not to interfere with decommissioning activities). During almost 30 years of successfully operating nuclear facilities in Ispra for supporting nuclear safeguards inspectorates with R&D, equipment development and training for in the meantime more than 1250 trainees, this laboratory is the main work-horse in this field and has functioned very frequently in the last years as easily accessible nuclear laboratory for external users. Even if a constant evolution took place in the last years, and additional facilities like the active neutron laboratory PUNITA or the ITRAP test laboratory for nuclear security R&D, testing and training have been taken in service, this step-change will allow refiguring the laboratory to face also new user expectations. NDA for safeguards continues to be a cornerstone of the measurement capacities complemented by experimental and advanced approaches, such as using active neutron interrogation, automation of measurements, complemented by Monte-Carlo simulations for neutron and gamma radiation. The tendency is also to integrate multiple plant signals (not only NDA measurements) in an overall assessment scheme and we envisage offering training and exercising capabilities for the inspectors also in this direction in the future. This paper will thus provide some insight in the concepts for the future use of the nuclear facilities on the Ispra site, which is complementary to two other contributions to this symposium, i.e., one describing the activities of our sister unit in Karlsruhe on NDA Safeguards Training and another on the new Advanced Safeguards Measurement, Monitoring and Modelling Laboratory (AS3ML) being built currently in Ispra. (author)

  16. How will fourth-generation nuclear systems be deployed?; Comment les systemes nucleaires de 4. generation se deploieront-ils?

    Energy Technology Data Exchange (ETDEWEB)

    Bonin, B.; Carre, F. [CEA Saclay, Dir. de l' Energie Nucleaire, 91 - Gif sur Yvette (France)

    2007-07-01

    If it is to be fully consonant with a sustainable development perspective, nuclear energy needs must rely on systems that will ensure the greatest optimization of fissile material utilization, while minimizing production of ultimate waste. Deployment scenarios, for systems of the new generation, remain very much open. (authors)

  17. Excitations in superfluid systems: contributions of the nuclear structure; Excitations dans les systemes superfluides: contributions de la structure nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Khan, E

    2005-12-15

    The author presents successively the theoretical aspect, the experimental aspect and the applied aspect of excitations in nuclear structures. The quasi-particle random phase approximation (QRPA) tool is first described. Recent approaches on QRPA are based on the theory of the density function where the ground state and excited states are described from the same nucleon-nucleon interaction. 2 methods for measuring the collective excitations are then presented: the proton scattering that has the potentiality to investigate the evolution of magicity, the second method is in fact a new method for measuring the giant mono-polar resonance (GMP) in exotic nuclei. Nuclear reactions are considered as a compulsory step on the way from observables like cross-sections to nuclear structure. The author highlights the assets of the convolution model that can generate the optical potential from the effective nucleon-nucleon interaction and from proton and neutron densities of the nuclei involved. R-processes in nucleosynthesis and neutron stars are reviewed as applications of collective excitations in the field of nuclear astrophysics. (A.C.)

  18. A review of geophysical investigations at the site of Chalk River Nuclear Laboratories, Ontario

    International Nuclear Information System (INIS)

    Thomas, M.D.; Hayles, J.G.

    1988-01-01

    The site of the Chalk River Nuclear Laboratories was one of the first research areas located on crystalline rocks to be extensively investigated under the Canadian Nuclear Fuel Waste Management Program. A large contribution to meeting the geoscientific objectives of the program has been made using a suite of geophysical techniques. Many of them are standard, though sometimes modified in terms of instrumentation and/or experimental and/or analytical procedures, to meet the particular needs of the waste management program. Relatively new techniques have also been employed. Much of the early evaluation and development of the various techniques took place at the Chalk River site. Standard methods such as gravity, magnetics and seismic sounding have been used to investigate bedrock structure, and the seismic method has also been used to estimate overburden thickness. Standard geophysical borehole logging has been used to obtain in situ estimates of physical properties, to locate fracture zones and to make hole to hole correlations that have helped define local structure. Several standard electrical (e.g. resitivity) and electromagnetic (e.g. VLF-EM) techniques have proven successful in identifying water-filled fractures and faults. Relatively new techniques introduced into the geophysics at Chalk River were: ground probing radar; to investigate overburden; borehole TV and acoustic televiewer and VLF-EM, to locate fractures; studies of seismic tube-waves, well tides and temperature logs, to investigate fracture location and permeability. Most of these methods have been successful and are now routinely employed at other research sites

  19. Questionnaire report of safety control on instrument in nuclear medicine laboratory

    International Nuclear Information System (INIS)

    1987-01-01

    A questionaire survey concerning the safety of equipment and facilities used in nuclear medicine laboratories was made in order to clarify the incidence of accidents during nuclear medicine testing. The questionaire consists of two parts. One part contains questions regarding the testing personnel, facilities, equipment and maintenance and management of the equipment. The other part deals with accidents that had occurred within the areas under management, potential risks that may cause accidents, measures to improve safety management, troubles with and failure of equipment, and requests and opinions directed to equipment manufactures. It is concluded from results of the survey that to raise the safety of equipment, so-called man-machine interfaces should be improved by increasing the durability of equipment and performance of the personnel operating the equipment while reducing the physical and mental effects on the persons subjected to testing. Systematic educational measures, including lecture meetings and training courses, are required to raise the consciousness of personnel. Such education and training should cover safety handling techniques, including those for checking of equipment and for instructing and helping the persons under testing. (Nogami, K.)

  20. Nuclear Astrophysics at ELI-NP: the ELISSA prototype tested at Laboratori Nazionali del Sud

    Science.gov (United States)

    Guardo, Giovanni Luca; Anzalone, Antonello; Balabanski, Dimiter; Chesnevskaya, Svetlana; Crucillá, Walter; Filipescu, Dan; Gulino, Marisa; La Cognata, Marco; Lattuada, Dario; Matei, Catalin; Pizzone, Rosario Gianluca; Rapisarda, Giuseppe; Romano, Stefano; Spitaleri, Claudio; Taffara, Alessandra; Tumino, Aurora; Xu, Yi

    2018-01-01

    The Extreme Light Infrastructure-Nuclear Physics (ELI-NP) facility, under construction in Magurele near Bucharest in Romania, will provide high-intensity and high-resolution gamma ray beams that can be used to address hotly debated problems in nuclear astrophysics, such as the accurate measurements of the cross sections of the 24Mg(γ,α)20Ne reaction, that is fundamental to determine the effective rate of 28Si destruction right before the core collapse and the subsequent supernova explosion. For this purpose, a silicon strip detector array (named ELISSA, acronym for Extreme Light Infrastructure Silicon Strip Array) will be realized in a common effort by ELI-NP and Laboratori Nazionali del Sud (INFN-LNS), in order to measure excitation functions and angular distributions over a wide energy and angular range. A prototype of ELISSA was built and tested at INFN-LNS in Catania (Italy) with the support of ELI-NP. In this occasion, we have carried out experiments with alpha sources and with a 11 MeV 7Li beam. Thanks to our approach, the first results of those tests show up a very good energy resolution (better than 1%) and very good position resolution, of the order of 1 mm. Moreover, a threshold of 150 keV can be easily achieved with no cooling.

  1. Comprehensive nuclear counting and detector characterisation system for the radiochemistry laboratory

    International Nuclear Information System (INIS)

    Parthasarathy, R.; Saisubalakshmi, D.; Mishra, G.K.; Srinivas, K.C.; Venkatasubramani, C.R.

    2004-01-01

    The paper describes a comprehensive nuclear pulse counting system that can cater to up to seven nuclear detector set-ups located in different places in the laboratory. Each detector set up has an interfacing module that conditions the amplifier pulses and transmits them to a common counting system. The microcontroller-based system receives these pulses through a multiplexer and counts the pulses for a user specified preset time. The system has a routine to determine detector plateau characteristics and fix the detector operating voltage. In this mode, the system collects the EHT-versus- counts data in a EHT programmed sequence and plots the profile. The system conducts the counting routine for a stipulated number of times and does all necessary statistical tests to ensure the proper functioning of the detector under test. The system also includes a test routine that checks the performance of the counting system by connecting it to a local pulse generator. The microcontroller based system interacts with a PC through RS232 communication for user interaction and reporting. (author)

  2. Les fabricants de superlourds

    CERN Multimedia

    Thivent, Viviane

    2006-01-01

    Who said that russian science was not competitive any more? Today, the nuclear physics laboratory in Dubna asserts the record of the heaviest chimical element ever manufactured: 118 protons. (4 pages)

  3. Implantation of the mobile laboratory of bio analysis for attendance to nuclear and radiologic emergencies

    International Nuclear Information System (INIS)

    Lucena, E.A.; Santos, M.S.; Araujo, F.; Dantas, Ana Leticia A.; Dantas, Bernardo M.

    2005-01-01

    The operation of nuclear power plants, production of radioisotopes and use of unsealed radioactive sources in medicine and research can lead to accidental internal exposure of individuals. Such practices require infrastructure for rapid response in case of emergency. The objective of this project was to design, setup and calibrate a mobile bioassay laboratory installed in a light Truck for the estimation of internal contamination in workers and public members in case of accident. It is used a NaI(Tl)3 x 3 for thyroid monitoring, a NaI(Tl)8 x 4 for whole body measurements and a NaI(Tl)3 3, installed in a cylindrical lead shielding for in vitro assay measurements. The detectors were calibrated with thyroid and whole phantoms and with 1 and 2 liters plastic bottles. The phantoms were produced with radionuclides emitting photons in the energy range of interest. The detectors available in the laboratory are able to identify and quantify photons in the energy range from 100 to 3000 keV, emitted by radionuclides distributed uniformly in the whole body or deposited in organs, specific tissues and in urine samples. (author)

  4. Compendium of the Environmental Measurements Laboratory's research projects related to the Chernobyl nuclear accident

    Energy Technology Data Exchange (ETDEWEB)

    Volchok, H L; Chieco, N [comps.

    1986-10-01

    Following the accident at the Chernobyl nuclear reactor power station in the USSR on April 26, 1986, the Environmental Measurements Laboratory (EML) initiated a number of research projects as follows: (1) selected sites in both the Deposition and Surface Air networks were alerted and their sampling protocols adjusted to accommodate the anticipated arrival times and activity concentrations of the Chernobyl debris; (2) a number of cooperative programs involving field work, sampling, analysis and data interpretation were set up with institutions and scientists in other countries; (3) EML's Regional Baseline Station at Chester, NJ, as well as the roof of the Laboratory in New York City, provided bases for sampling and measurements to study the radionuclide concentrations, radiation levels, physical characteristics and potential biological implications of the Chernobyl fallout on the northeastern United States; and (4) the resulting fallout from the Chernobyl accident provided an 'experiment of opportunity' in that it enabled us to study fresh fission product deposition using collection systems resurrected from the 1950's and 1960's for comparison with current state-of-the-art methodology. The 13 reports of this volume have been entered separately into the data base.

  5. Status Report of Nuclear Data Activities at Oak Ridge National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Smith, M.; Nesaraja, C. [Oak Ridge National Laboratory, US DOE, Oak Ridge, TN 37831 (United States)

    2013-08-15

    of neutron capture cross sections on 130,132Sn employing Fermi gas level density formulations. For more information on the work please refer to {sup S}tructures of exotic 131,133Sn isotopes and effect on r-process nucleosynthesis{sup ,} Shi-Sheng Zhang, M. S. Smith, G. Arbanas, R. L. Kozub, Phys. Rev. C 86 (2012) 032802(R). iii) Online Software Systems: Our nuclear astrophysics data activity also includes software work to improve and expand the functionality of the Computational Infrastructure for Nuclear Astrophysics (CINA). This suite enables users to make the connection between laboratory nuclear physics results - and USNDP data bases - and astrophysical simulations with just a few mouse clicks. Researchers from several institutions in several countries use this software system for their research. A related tool at nuclearmasses.org is also periodically updated with the latest mass measurements as compiled by McMaster Univ., as well as with the latest theoretical mass models. Future Activities: Future mass chains will be evaluated within the range A=241-249 the range assigned to ORNL, as well as others assigned by USNDP/NNDC.

  6. ENDL-84. The Evaluated Nuclear Data Library of the Lawrence Livermore National Laboratory in the ENDF-5 format

    International Nuclear Information System (INIS)

    Cullen, D.E.; McLaughlin, P.K.; Lemmel, H.D.

    1990-09-01

    This document summarizes the contents of the evaluated nuclear data library (ENDL) by the Lawrence Livermore National Laboratory, USA, converted to ENDF-5 format. The library contains evaluated data for all significant neutron reactions in the energy range from 10 -4 eV to 20 MeV for 94 elements or isotopes. The entire library or selective retrievals from it can be obtained on magnetic tape, free of charge, from the IAEA Nuclear Data Section. (author)

  7. Les Africaines Et Les Tic

    International Development Research Centre (IDRC) Digital Library (Canada)

    Enquête sur les technologies, la question de genre et autonomisation ...... Polachek, S. (1981) «Occupational self-selection: a human capital approach to sex ...... in the Computer Science major », Communications of the ACM, 44(5) : 108–14.

  8. Nuclear decontamination and decommissioning operations at the Idaho National Engineering and Environmental Laboratory (INEEL)

    International Nuclear Information System (INIS)

    Meservey, R.H.; Kenoyer, D.J.; Frazee, B.J.

    1997-01-01

    The Idaho National engineering and Environmental Laboratory (INEEL) is home of the largest concentration of nuclear reactors in the world. In addition to the reactors, many fuel reprocessing, laboratory, and other nuclear support facilities have been operated at the INEEL. Many have already been decontaminated and decommissioned (D and D) and many more are in the planning stages for such activities. A full time D and D program has been in existence at the INEEL for the past 20 years. Starting with a long range plan for D and D of all surplus contaminated facilities at the INEEL, and ending with the verification of the free release of those facilities after decommissioning, all aspects of D and D activities are covered. Topics covered in this paper include the INEEL D and D Long Range Plan, the D and D Porject Managers Handbook, the use of ASTM Standard Guides in decommissioning operations, and the INEEL D and D Technology Logic Diagrams. The identification and preparation of safety plans, environmental documentation, and operational procedures will also be covered in the presentation. The selection and use of advanced technologies to improve safety, reduce costs, and shorten D and D schedules is very important to the nuclear industry. In addition to a discussion of the D and D Technology Logic Diagrams, a discussion of new and improved technologies in use at the INEEL and other department of energy facilities will be presented. This will include brief discussions of work being performed at three Department of Energy Large Scale D and D Technology Demonstration projects. These include technology demonstrations at a Test Reactor, Uranium Fabrication Plant, and a large Production Reactor. Unique technologies which have been developed and tested at the INEEL will also be covered in the presentation. These include the biological decontamination of concrete, a laser enhanced zero added waste cutting, abraiding, and drilling technology, and the development of an

  9. Research and service capabilities of the National Nuclear Forensic Research Laboratory; Capacidades de investigacion y servicio del Laboratorio Nacional de Investigacion en Forense Nuclear, Lanafonu

    Energy Technology Data Exchange (ETDEWEB)

    Romero G, E. T.; Hernandez M, H.; Flores C, J.; Paredes G, L. C., E-mail: elizabeth.romero@inin.gob.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2016-09-15

    According to the recommendations of the International Atomic Energy Agency, Mexico is taking steps to combat illicit trafficking in nuclear material. The creation of a National Nuclear Forensic Research Laboratory (Lanafonu, acronym in Spanish) has been assigned to the Instituto Nacional de Investigaciones Nucleares (ININ, Mexico) in 2014. The objectives of this Laboratory are: to combat illicit trafficking in nuclear materials, to optimize scientific processes and techniques used to analyze nuclear materials (orphans or radioactive sources), environmental and potential biological sources as a result of the handling, transport and final storage. At present, the Lanafonu facilities are focused on the optimization of emergency and routine protocols for measuring radioisotopes in environmental and biological samples using inductive coupling mass spectrometer with magnetic sector. The main activities are: i) optimization of the methods for measuring the isotopes of Pu by alpha-spectrometry, Icp-SFMS and AMS (accelerator mass spectrometry), ii) development or radiochemical methods for routine situations and nuclear emergencies, iii) participation in the scientific technical commission on nuclear forensic science, iv) participation in international intercomparison exercises to optimize and validate methods, and v) consolidation of Lanafonu in Mexico and the IAEA. (Author)

  10. Training related research and development conducted at Oak Ridge National Laboratory for the US Nuclear Regulatory Commission

    International Nuclear Information System (INIS)

    Haas, P.M.

    1985-01-01

    For a number of years Oak Ridge National Laboratory (ORNL) has conducted a sizeable program of human factors research and development in support of the Office of Nuclear Regulatory Research of the US Nuclear Regulatory Commission (NRC). The history of this effort has in many ways paralleled the growth of human factors R and D throughout the nuclear industry and the program has contributed to advances in the industry as well as to NRC regulatory and research programs. This paper reviews the major projects and products of the program relevant to training and concludes with an identification of future R and D needs

  11. Qualification requirements and training programs for nonreactor nuclear facility personnel in the Operations Division of the Oak Ridge National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Preston, E.L.; Culbert, W.H.; Baldwin, M.E.; McCormack, K.E.; Rivera, A.L.; Setaro, J.A.

    1985-11-01

    This document describes the program for training, retraining, and qualification of nonreactor nuclear operators in the Operations Division of the Oak Ridge National Laboratory. The objective of the program is to provide the Operators and Supervisors of nuclear facilities the knowledge and skills needed to perform assigned duties in a safe and efficient manner and to comply with US Department of Energy Order 5480.1A Chapter V. This order requires DOE nuclear facilities to maintain formal training programs for their operating staff and documentation of that training.

  12. Qualification requirements and training programs for nonreactor nuclear facility personnel in the Operations Division of the Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Preston, E.L.; Culbert, W.H.; Baldwin, M.E.; McCormack, K.E.; Rivera, A.L.; Setaro, J.A.

    1985-11-01

    This document describes the program for training, retraining, and qualification of nonreactor nuclear operators in the Operations Division of the Oak Ridge National Laboratory. The objective of the program is to provide the Operators and Supervisors of nuclear facilities the knowledge and skills needed to perform assigned duties in a safe and efficient manner and to comply with US Department of Energy Order 5480.1A Chapter V. This order requires DOE nuclear facilities to maintain formal training programs for their operating staff and documentation of that training

  13. The permanent forward (Some episodes from the history of the Laboratory of Nuclear Problems, 1949-1999)

    International Nuclear Information System (INIS)

    Soroko, L.M.

    2001-01-01

    Out of about 6000 scientific investigations, performed at the Laboratory of Nuclear Problems of the JINR during the 50 years of its activity, there were chosen those ones which can be regarded as being on the world scale, on the Russian or, finally, on the JINR's scale. The author was a participant or the direct witness of the episodes described in this paper

  14. Report of the research results with University of Tokyo Nuclear Engineering Research Laboratory's facilities in fiscal 1975

    International Nuclear Information System (INIS)

    1976-08-01

    Results of the research works by educational institutions using fast neutron source reactor 'Yayoi' etc. of Nuclear Engineering Research Laboratory in fiscal 1975 are reported in individual summaries. Fields of research are the following: shielding benchmark experiment, research on medical irradiation, irradiation experiments, experiments by small research groups, fast neutron streaming experiment, and so on. (Mori, K.)

  15. Les méthodes thermiques de production des hydrocarbures. Chapitre 5 : Combustion "in situ". Pricipes et études de laboratoire Thermal Methods of Hydrocarbon Production. Chapter 5 : "In Situ" Combustion. Principles and Laboratory Research

    Directory of Open Access Journals (Sweden)

    Burger J.

    2006-11-01

    Full Text Available II existe plusieurs variantes de la combustion in situ, suivant le sens de déplacement du front de combustion, à co-courant ou à contre-courant, et suivant la nature des fluides injectés, air seul ou injection combinée d'air et d'eau. Les réactions de pyrolyse, d'oxydation et de combustion mises en jeu par ces techniques sont discutées, en particulier la cinétique des principaux mécanismes réactionnels, l'importance du dépôt de coke et l'exothermicité des réactions d'oxydation et de combustion. Les résultats d'essais de déplacement unidirectionnel du front de combustion dans des cellules de laboratoire sont présentés et discutés. Enfin on indique les conditions pratiques d'application des méthodes de combustion in situ sur champ. Possible variations of in situ combustion technique ore as follows : forward or reverse combustion depending on the relative directions of the air flow and the combustion front, dry combustion if air is the only fluid injected into the oil-bearing formation, or fixe/woter flooding if water is injected along with air. The chemical reactions of pyrolysis, oxidation and combustion involved in these processes are described. The kinetics of these reactions is discussed as well as fuel availability in forward combustion and the exothermicity of the oxidation and combustion reactions. The results obtained in the laboratory when a combustion front propagates in unidirectional adiabatic tells are described and discussed. This type of experimentation provides extensive information on the characteristics of the processes. Screening criteria for the practical application of in situ combustion techniques are presented.

  16. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs draft environmental impact statement. Volume 1, Appendix B: Idaho National Engineering Laboratory Spent Nuclear Fuel Management Program

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    The US Department of Energy (DOE) has prepared this report to assist its management in making two decisions. The first decision, which is programmatic, is to determine the management program for DOE spent nuclear fuel. The second decision is on the future direction of environmental restoration, waste management, and spent nuclear fuel management activities at the Idaho National Engineering Laboratory. Volume 1 of the EIS, which supports the programmatic decision, considers the effects of spent nuclear fuel management on the quality of the human and natural environment for planning years 1995 through 2035. DOE has derived the information and analysis results in Volume 1 from several site-specific appendixes. Volume 2 of the EIS, which supports the INEL-specific decision, describes environmental impacts for various environmental restoration, waste management, and spent nuclear fuel management alternatives for planning years 1995 through 2005. This Appendix B to Volume 1 considers the impacts on the INEL environment of the implementation of various DOE-wide spent nuclear fuel management alternatives. The Naval Nuclear Propulsion Program, which is a joint Navy/DOE program, is responsible for spent naval nuclear fuel examination at the INEL. For this appendix, naval fuel that has been examined at the Naval Reactors Facility and turned over to DOE for storage is termed naval-type fuel. This appendix evaluates the management of DOE spent nuclear fuel including naval-type fuel.

  17. Sandia National Laboratories support of the Iraq Nuclear Facility Dismantlement and Disposal Program.

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, John Russell; Danneels, Jeffrey John

    2009-03-01

    Because of past military operations, lack of upkeep and looting there are now enormous radioactive waste problems in Iraq. These waste problems include destroyed nuclear facilities, uncharacterized radioactive wastes, liquid radioactive waste in underground tanks, wastes related to the production of yellow cake, sealed radioactive sources, activated metals and contaminated metals that must be constantly guarded. Iraq currently lacks the trained personnel, regulatory and physical infrastructure to safely and securely manage these facilities and wastes. In 2005 the International Atomic Energy Agency (IAEA) agreed to organize an international cooperative program to assist Iraq with these issues. Soon after, the Iraq Nuclear Facility Dismantlement and Disposal Program (the NDs Program) was initiated by the U.S. Department of State (DOS) to support the IAEA and assist the Government of Iraq (GOI) in eliminating the threats from poorly controlled radioactive materials. The Iraq NDs Program is providing support for the IAEA plus training, consultation and limited equipment to the GOI. The GOI owns the problems and will be responsible for implementation of the Iraq NDs Program. Sandia National Laboratories (Sandia) is a part of the DOS's team implementing the Iraq NDs Program. This report documents Sandia's support of the Iraq NDs Program, which has developed into three principal work streams: (1) training and technical consultation; (2) introducing Iraqis to modern decommissioning and waste management practices; and (3) supporting the IAEA, as they assist the GOI. Examples of each of these work streams include: (1) presentation of a three-day training workshop on 'Practical Concepts for Safe Disposal of Low-Level Radioactive Waste in Arid Settings;' (2) leading GOI representatives on a tour of two operating low level radioactive waste disposal facilities in the U.S.; and (3) supporting the IAEA's Technical Meeting with the GOI from April 21

  18. Cleanup of a Department of Energy Nonreactor Nuclear Facility: Experience at the Los Alamos National Laboratory High Pressure Tritium Laboratory

    International Nuclear Information System (INIS)

    Horak, H.L.

    1995-01-01

    On October 25, 1990, Los Alamos National Laboratory (LANL) ceased programmatic operations at the High Pressure Tritium Laboratory (HPTL). Since that time, LANL has been preparing the facility for transfer into the Department of Energy's (DOE's) Decontamination and Decommissioning Program. LANL staff now has considerable operational experience with the cleanup of a 40-year-old facility used exclusively to conduct experiments in the use of tritium, the radioactive isotope of hydrogen. Tritium and its compounds have permeated the HPTL structure and equipment, have affected operations and procedures, and now dominate efforts at cleanup and disposal. At the time of shutdown, the HPTL still had a tritium inventory of over 100 grams in a variety of forms and containers

  19. The behaviour of some polyatomic gases in nuclear reactors; Le comportement de quelques gaz polyatomiques dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Dolle, L [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1958-07-01

    'influence des radiations. La radiolyse de NH{sub 3}, procede par un mecanisme complexe, et la cinetique obeit a une loi d'ordre 2,5 environ qui augmente avec le taux de decomposition. La decomposition de l'hydrogene sulfure est notablement plus rapide que celle de NH{sub 3}. Le seul produit gazeux de la reaction est l'hydrogene. Le soufre, qui se depose sur les parois des ampoules, est nettement perceptible a l'oeil. On a obtenu jusqu'ici des decompositions allant jusqu'a 84 pour cent. L'influence de la reaction {sup 32}S (n, p) {sup 32}P est consideree. La decomposition radiochimique du protoxyde d'azote N{sub 2}O se fait avec des rendements eleves. La reaction est compliquee des ses debuts par la formation d'oxydes superieurs de l'azote que nous identifions et mesurons. Le methane donne par decomposition radiochimique des quantites d'hydrocarbures superieurs. Certains de ces systemes gazeux pourraient trouver des applications dans la mesure de fortes doses de rayonnement. Ce probleme est discute en conclusion. (auteur)

  20. Les choses…

    Directory of Open Access Journals (Sweden)

    Pierre Curie

    2012-05-01

    Full Text Available Dans la culture tant des Monuments historiques que de l’Université française, le monumental a longtemps prévalu sur l’objet, peinture, sculpture ou objet d’art qui, lui, dans l’inconscient collectif, relevait tout naturellement du musée. Dans la pensée et dans les goûts d’André Chastel, les catégories n’étaient pas aussi manichéennes et à l’Inventaire, malgré une certaine prééminence de l’architecture, l’objet - au sens large - tint, dès le début de l’aventure, une place non négligeable. Le premier des Vocabulaires parus, en 1969, fut consacré à la tapisserie, suivi, en une vingtaine d’années, par la sculpture, les objets et le mobilier civil domestique, le vitrail…In the culture of France’s historic monuments, as in French universities, the monumental has long been considered as more important than sculptures or works of art, generally seen as more to do with museums. In the writings and tastes of André Chastel, however, the categories were not so clear-cut and, at the French Inventory, although architecture has enjoyed a certain pre-eminence, the object, in the broadest sense of the term, has been taken into consideration form the outset. Over 17,000 items now feature in the national database Palissy, on moveable objects. The first scientific vocabulary, published by the Inventory services in 1969, was devoted to tapestry and, over the last twenty years, other vocabularies have dealt with sculpture, domestic civil furniture and stained glass.

  1. A future for nuclear sites beyond their service life. Nuclear site value development; Un avenir pour les sites nucleaires en fin de cycle. Valorisation des sites nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    As the nuclear industry moves into a new development phase, many facilities built in the fifties and sixties are reaching the end of their service life. Dismantling them and rehabilitating the sites on which they stand is a major industrial challenge which will give rise to a number of new projects. AREVA has more than 20 years' experience in these highly technical fields. As more and more sites reach the end of their service life, AREVA considers nuclear site value development as a fully-fledged industrial activity. The group's competencies in this field have been grouped together to form a dedicated entity: the Nuclear Site Value Development Business Unit, created in 2008. Several billion euros are invested in site value development projects which are far-reaching and complex, and often last for several decades. Long before work actually begins, lengthy studies and preparations are required to schedule operations, select the techniques to be used and optimize costs and deadlines. The Nuclear Site Value Development BU is currently working on four major projects involving its own facilities and those of the CEA: - La Hague: dismantling of the first generation of used fuel recycling facilities. Between 1966 and 1998, almost 5,000 tons of used fuel from graphite-moderated gas-cooled reactors, 4,500 tons of light water reactor fuel, as well as fuel from fast reactors and research reactors, were treated at UP2 400, the very first industrial recycling plant on the La Hague site. - Marcoule: first-time dismantling of a recycling plant. 1,000 rooms to be cleaned up, 30,000 tons of waste to be treated, 30 years of work. - Cadarache: first-time dismantling of a Mox fuel fabrication plant. The Cadarache plant was commissioned in 1962 to fabricate fuel for fast reactors; this was followed by MOX fuel for light water reactors, an activity which continued until the plant was shut down in 2003. - Annecy and Veurey: giving a new lease of life to former industrial sites

  2. Optimum Condition for Plutonium Electrodeposition Process in Radiochemistry and Environment Laboratory, Nuclear Malaysia

    International Nuclear Information System (INIS)

    Yii, Mei-Wo; Abdullah Siddiqi Ismail

    2014-01-01

    Determination of alpha emitting plutonium radionuclides such as Pu-238, Pu-239 and Pu-240 concentrations inside a sample require lots of radiochemistry purification process to separate them from other interfering alpha emitters. These pure isotopes are then been electrodeposited onto a stainless steel disc and quantified using alpha spectrometry counter. In Radiochemistry and Environment Laboratory (RAS), Nuclear Malaysia, the quantification is done by comparing these isotopes with the recovery of known amount plutonium tracer, Pu-242, that been added into the sample prior analysis. This study been conducted to find the optimum conditions for the electrolysis process used at RAS. Four variable parameters that may interfere the percentage recovery of tracer hence the current, cathode to anode distance, pH and electrolysis duration had been identify and studied. Study was carry out using Pu-242 standard solution and the deposition disc was counted using Zinc Sulphite (silver) counter. Studies outcome suggested that the optimum conditions to reduce plutonium ion happens at 1-1.1 ampere of current, 3-5 mm of electrodes distance, pH 2.2-2.5 and a minimal electrolysis duration of 2 hours. (author)

  3. Oak Ridge National Laboratory Office of International Nuclear Safeguards: Human Capital Development Activity in FY16

    International Nuclear Information System (INIS)

    Gilligan, Kimberly V.; Gaudet, Rachel N.

    2016-01-01

    In 2007, the U.S. Department of Energy National Nuclear Security Administration (DOE NNSA) Office of Nonproliferation and Arms Control (NPAC) completed a comprehensive review of the current and potential future challenges facing the international safeguards system. One of the report's key recommendations was for DOE NNSA to launch a major new program to revitalize the international safeguards technology and human resource base. In 2007, at the International Atomic Energy Agency (IAEA) General Conference, then Secretary of Energy Samuel W. Bodman announced the newly created Next Generation Safeguards Initiative (NGSI). NGSI consists of five program elements: policy development and outreach, concepts and approaches, technology and analytical methodologies, human capital development (HCD), and infrastructure development. This report addresses the HCD component of NGSI. The goal of the HCD component as defined in the NNSA Program Plan is ''to revitalize and expand the international safeguards human capital base by attracting and training a new generation of talent.'' The major objectives listed in the HCD goal include education and training, outreach to universities and professional societies, postdoctoral appointments, and summer internships at national laboratories.

  4. An overview of the waste characterization program at Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Csullog, G.W.; Hardy, D.G.

    1988-01-01

    In the last five years, Chalk River Nuclear Laboratories (CRNL) placed 17,000 m 3 of wastes into storage (excluding contaminated soil and fill). Almost half of the waste was generated off-site. CRNL is now developing IRUS, an Intrusion Resistant Underground Structure, and the IST, an Improved Sand Trench, to replace storage with safe, permanent disposal. IRUS will be used to dispose of wastes with radiologically hazardous lifetimes between 150 and 500 years duration and the IST will be used for wastes with radiologically hazardous lifetimes of less than 150 years. A comprehensive Waste Characterization Program (WCP) is in place to support disposal projects. The WCP is responsible for (1) specifying the manifests for waste shipments; (2) developing and maintaining central databases for waste inventories and analytical data; and (3) developing the technologies and procedures to characterize the radiological and the physical/chemical properties of wastes. WCP work is being performed under the umbrella of a newly developed waste management quality assurance (QA) program. This paper gives an overview of the WCP with an emphasis on the requirements for determining radionuclide inventories in wastes, for implementing record-keeping systems and for maintaining a QA program for disposal operations

  5. 1983 international intercomparison of nuclear accident dosimetry systems at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Swaja, R.E.; Greene, R.T.; Sims, C.S.

    1985-04-01

    An international intercomparison of nuclear accident dosimetry systems was conducted during September 12-16, 1983, at Oak Ridge National Laboratory (ORNL) using the Health Physics Research Reactor operated in the pulse mode to simulate criticality accidents. This study marked the twentieth in a series of annual accident dosimetry intercomparisons conducted at ORNL. Participants from ten organizations attended this intercomparison and measured neutron and gamma doses at area monitoring stations and on phantoms for three different shield conditions. Results of this study indicate that foil activation techniques are the most popular and accurate method of determining accident-level neutron doses at area monitoring stations. For personnel monitoring, foil activation, blood sodium activation, and thermoluminescent (TL) methods are all capable of providing accurate dose estimates in a variety of radiation fields. All participants in this study used TLD's to determine gamma doses with very good results on the average. Chemical dosemeters were also shown to be capable of yielding accurate estimates of total neutron plus gamma doses in a variety of radiation fields. While 83% of all neutron measurements satisfied regulatory standards relative to reference values, only 39% of all gamma results satisfied corresponding guidelines for gamma measurements. These results indicate that continued improvement in accident dosimetry evaluation and measurement techniques is needed

  6. Oak Ridge National Laboratory Office of International Nuclear Safeguards: Human Capital Development Activity in FY16

    Energy Technology Data Exchange (ETDEWEB)

    Gilligan, Kimberly V. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Nuclear Security and Isotope Technology Division; Gaudet, Rachel N. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Nuclear Security and Isotope Technology Division

    2016-09-30

    In 2007, the U.S. Department of Energy National Nuclear Security Administration (DOE NNSA) Office of Nonproliferation and Arms Control (NPAC) completed a comprehensive review of the current and potential future challenges facing the international safeguards system. One of the report’s key recommendations was for DOE NNSA to launch a major new program to revitalize the international safeguards technology and human resource base. In 2007, at the International Atomic Energy Agency (IAEA) General Conference, then Secretary of Energy Samuel W. Bodman announced the newly created Next Generation Safeguards Initiative (NGSI). NGSI consists of five program elements: policy development and outreach, concepts and approaches, technology and analytical methodologies, human capital development (HCD), and infrastructure development. This report addresses the HCD component of NGSI. The goal of the HCD component as defined in the NNSA Program Plan is “to revitalize and expand the international safeguards human capital base by attracting and training a new generation of talent.” The major objectives listed in the HCD goal include education and training, outreach to universities and professional societies, postdoctoral appointments, and summer internships at national laboratories.

  7. Characterization of the Shielded Neutron Source at Triangle Universities Nuclear Laboratory

    Science.gov (United States)

    Hobson, Chad; Finch, Sean; Howell, Calvin; Malone, Ron; Tornow, Wernew

    2016-09-01

    In 2015, Triangle Universities Nuclear Laboratory rebuilt its shielded neutron source (SNS) with the goal of improving neutron beam collimation and reducing neutron and gamma-ray backgrounds. Neutrons are produced via the 2H(d,n)3He reaction and then collimated by heavy shielding to form a beam. The SNS has the ability to produce both a rectangular and circular neutron beam through use of two collimators with different beam apertures. Our work characterized both the neutron beam profiles as well as the neutron and gamma-ray backgrounds at various locations around the SNS. This characterization was performed to provide researchers who use the SNS with beam parameters necessary to plan and conduct an experiment. Vertical and horizontal beam profiles were measured at two different distances from the neutron production cell by scanning a small plastic scintillator across the face of the beam at various energies for each collimator. Background neutron and gamma-ray intensities were measured using time-of-flight techniques at 10 MeV and 16 MeV with the rectangular collimator. We present results on the position and size of neutron beam as well as on the structure and magnitude of the backgrounds.

  8. Health physics problems in the context of the development of industrial uses of nuclear energy; Les problemes de radioprotection devant le developpement de l'utilisation industrielle de l'energie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Duhamel, F.; Menoux, A. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1964-07-01

    fate of radioactive ions in the hydrosphere may be determined. - experiments and studies linked with the possibilities for disposal a underground storage of wastes. All these studies cover a complementary field, that of radioprotection, which forms the necessary link between nuclear safety proper, which concerns the actual operation of nuclear installations and medical supervision which directly concerns the health of the individual and the population. At the same time each one of the Health Physics disciplines possesses an independence which increases their efficiency on the safety level. (authors) [French] Le developpement de l'utilisation industrielle de l'energie nucleaire a mis l'accent sur la necessite de promouvoir une doctrine rationnelle et coherente en matiere de securite des installations atomiques et plus particulierement en matiere de securite des sites nucleaires. Le but principal de la securite est de diminuer, voire d'annuler les risques d'irradiation ou de contamination des travailleurs et de la population, consecutifs au fonctionnement normal ou accidentel des installations. La securite est obtenue par la mise en oeuvre d'un ensemble complexe de moyens. Parmi ces moyens les auteurs considerent essentiellement ceux qui presentent une certaine independance a l'egard du type d'installation: moyens d'alerte et de mesure et leur mise en oeuvre - preparation psychologique et technique des individus - evaluation de la capacite d'un site a absorber les rejets radioactifs sans dommage pour la population. Il est clair en effet que les consequences d'un accident sont diminuees par l'augmentation de la valeur des moyens de surveillance, de mesure et d'alerte, l'elevation du niveau technique et l'entrainement du personnel, l'education de la population. Ceci est particulierement vrai aupres d'une installation nucleaire ou l'etude des dangers presente un caractere abstrait et

  9. Health physics problems in the context of the development of industrial uses of nuclear energy; Les problemes de radioprotection devant le developpement de l'utilisation industrielle de l'energie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Duhamel, F; Menoux, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1964-07-01

    fate of radioactive ions in the hydrosphere may be determined. - experiments and studies linked with the possibilities for disposal a underground storage of wastes. All these studies cover a complementary field, that of radioprotection, which forms the necessary link between nuclear safety proper, which concerns the actual operation of nuclear installations and medical supervision which directly concerns the health of the individual and the population. At the same time each one of the Health Physics disciplines possesses an independence which increases their efficiency on the safety level. (authors) [French] Le developpement de l'utilisation industrielle de l'energie nucleaire a mis l'accent sur la necessite de promouvoir une doctrine rationnelle et coherente en matiere de securite des installations atomiques et plus particulierement en matiere de securite des sites nucleaires. Le but principal de la securite est de diminuer, voire d'annuler les risques d'irradiation ou de contamination des travailleurs et de la population, consecutifs au fonctionnement normal ou accidentel des installations. La securite est obtenue par la mise en oeuvre d'un ensemble complexe de moyens. Parmi ces moyens les auteurs considerent essentiellement ceux qui presentent une certaine independance a l'egard du type d'installation: moyens d'alerte et de mesure et leur mise en oeuvre - preparation psychologique et technique des individus - evaluation de la capacite d'un site a absorber les rejets radioactifs sans dommage pour la population. Il est clair en effet que les consequences d'un accident sont diminuees par l'augmentation de la valeur des moyens de surveillance, de mesure et d'alerte, l'elevation du niveau technique et l'entrainement du personnel, l'education de la population. Ceci est particulierement vrai aupres d'une installation nucleaire ou l'etude des dangers presente un caractere abstrait et ou les moyens technologiques de protection sont multiples et complexes. Les etudes de

  10. LABORATORY-SCALE PRODUCTION OF ADU GELS BY EXTERNAL GELATION FOR AN INTERMEDIATE HTGR NUCLEAR

    Directory of Open Access Journals (Sweden)

    S Simbolon

    2015-03-01

    Full Text Available LABORATORY-SCALE PRODUCTION OF ADU GELS BY EXTERNAL GELATION FOR AN INTERMEDIATE HTGR NUCLEAR. The The aim of this research is to produce thousands of microsphere ADU (Ammonium Diuranate gels by using external gelation for an intermediate HTGR (High Temperature Gas-cooled Reactor nuclear fuel in laboratory-scale. Microsphere ADU gels were based on sol-solution which was made from a homogeneous mixture of ADUN (Acid Deficient Uranyl Nitrate which was containing uranyl ion in high concentration, a water soluble organic compound PVA (Polyvinyl Alcohol and THFA (Tetrahydrofurfuryl Alcohol. The simple unified home made laboratory experimental machine was developed to replace test tube experiment method which was once used due to a tiny amount of microsphere ADU gels produced. It consists of four main parts: tank filled sol-solution connecting to peristaltic pump and vibrating nozzle, preliminary gelation and gelation column. The machine has successfully converted 150 mL sol-solution into thousands of drops which produced 120 - 130 drops in each minute in steady state in ammonia gas free sector. Preliminary gelation reaction was carried out in ammonia gas sector where drops react with ammonia gas in a bat an eye followed by gelation reaction in column containing ammonia solution 7 M. In ageing process, ADU gels were collected and submerged into a vessel containing ammonia solution which was shaken for 1 hour in a shaker device. Isopropyl alcohol (90% solution was used to wash ADU gels and a digital camera was used to measured spherical form of ADU gels. Diameters in spherical spheroid form were found between 1.8 mm until 2.2 mm. The spherical purity of ADU gels were 10% - 20% others were oblate, prolate spheroid and microsphere which have hugetiny of dimples on the surface.   PRODUKSI GEL ADU SKALA LABORATORIUM DENGAN MENGGUNAKAN GELASI EKSTERNAL UNTUK BAHAN BAKAR ANTARA HTGR. Penelitian ini bertujuan untuk membuat ribuan gel bulat ADU (Ammonium

  11. Les incommensurables

    CERN Document Server

    Houdart, Sophie

    2015-01-01

    Le Large Hadron Collider, ou grand collisionneur de hadrons, est l'accélérateur de particules le plus grand et le plus puissant du monde. Prenant la forme d'un anneau de 26,659 kilomètres de circonférence, lové 100 mètres sous terre et officiellement domicilié à Meyrin, à la frontière de la France et de la Suisse, il est constitué d'aimants supraconducteurs et de structures accélératrices qui augmentent l'énergie des particules qui y circulent. Chaque jour, à l'intérieur de l'accélérateur, deux faisceaux de particules qui circulent en sens contraire à des énergies très élevées avant de rentrer en collision l'un avec l'autre. Les particules, lancées à 99,9999991 % de la vitesse de la lumière, effectuent 11245 fois le tour de l'accélérateur par seconde et entrent en collision quelque 600 millions de fois par seconde. Les Incommensurables est une minutieuse enquête de terrain sur cette "cathédrale" enfouie qui offre la possibilité de se connecter à l'immensité et aux mystères de...

  12. PCI fuel failure analysis: a report on a cooperative program undertaken by Pacific Northwest Laboratory and Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Mohr, C.L.; Pankaskie, P.J.; Heasler, P.G.; Wood, J.C.

    1979-12-01

    Reactor fuel failure data sets in the form of initial power (P/sub i/), final power (P/sub f/), transient increase in power (ΔP), and burnup (Bu) were obtained for pressurized heavy water reactors (PHWRs), boiling water reactors (BWRs), and pressurized water reactors (PWRs). These data sets were evaluated and used as the basis for developing two predictive fuel failure models, a graphical concept called the PCI-OGRAM, and a nonlinear regression based model called PROFIT. The PCI-OGRAM is an extension of the FUELOGRAM developed by AECL. It is based on a critical threshold concept for stress dependent stress corrosion cracking. The PROFIT model, developed at Pacific Northwest Laboratory, is the result of applying standard statistical regression methods to the available PCI fuel failure data and an analysis of the environmental and strain rate dependent stress-strain properties of the Zircaloy cladding

  13. Les manifestations cardiovasculaires chez les hemodialyses ...

    African Journals Online (AJOL)

    Le but de l'étude est d'analyser sur une période de 12 mois chez 75 patients en hémodialyse chronique, âgés de 38ans en moyenne, le les aspects cliniques, thérapeutiques et évolutifs des manifestations cardiovasculaires. La prévalence est de 87,20% chez les patients. Les signes fonctionnels les plus fréquents sont la ...

  14. 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

  15. 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

  16. Implementation of quality assurance and quality control in the Nuclear Analytical Laboratory of the Estonian Radiation Protection Centre

    International Nuclear Information System (INIS)

    Koeoep, T.; Jakobson, E.

    2002-01-01

    The Analytical Laboratory of the Estonian Radiation Protection Centre is in the process of implementing the system of Quality Assurance (QA) and Quality Control (QC) in the framework of the IAEA TC Project RER/2/004/ 'QA/QC of Nuclear Analytical Techniques'. The draft Quality Manual with annexes has been prepared accordingly to the ISO 17025 Guide, documents and other printed material delivered on the seminars of the project. The laboratory supply has been supplemented with necessary equipment for guaranteeing of quality. Proficiency testing included in the project has been performed successfully. (author)

  17. Nuclear science annual report, July 1, 1977-June 30, 1978. [Lawrence Berkeley Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Schroeder, L.S.; Gough, R.A.; Nurmia, M.J. (eds.)

    1978-01-01

    Activities for the period July 1, 1977, through June 30, 1978, are reported in the following areas: experimental research (nuclear structure; nuclear reactions and scattering; relativistic heavy ions - projectile and target fragmentation, central collisions; the Table of Isotopes Project, atomic physics, and magnetic monopoles), theory of nuclear collisions (microscopic, macroscopic, relativistic), and apparatus (accelerator operations and development, nuclear instrumentation). Also included are thesis abstracts, publications lists, and an author index. Individual abstracts were prepared for 33 of the reports in this volume. (RWR)

  18. RANS / LES coupling applied to high Reynolds number turbulent flows of the nuclear industry; Application du couplage RANS / LES aux ecoulements turbulents a haut nombre de Reynolds de l'industrie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Benarafa, Y

    2005-12-15

    The main issue to perform a computational study of high Reynolds numbered turbulent flows consists on predicting their unsteadiness without implying a tremendous computational cost. First, the main drawbacks of large-eddy simulation with standard wall model on a coarse mesh for a plane channel flow are highlighted. To correct these drawbacks two coupling RANS/LES methods have been proposed. The first one relies on a sophisticated wall model (TBLE) which consists on solving Thin Boundary Layer Equations with a RANS type turbulent closure in the near wall region. The second one consists on a RANS/LES methods have been proposed. The second one consists on a RANS/LES coupling method using a forcing term approach. These various approaches have been implemented in the TRIO-U code developed at CEA (French Atomic Center) at Grenoble, France. The studied flow configurations are the fully developed plane channel flow and a flow around a surface-mounted cubical obstacle. Both approaches provide encouraging results and allow a surface-mounted cubical obstacle. Both approaches provide encouraging results and allow unsteady simulations for a low computational cost. (author)

  19. The Science of Nuclear Materials: A Modular, Laboratory-based Curriculum

    Energy Technology Data Exchange (ETDEWEB)

    Cahill, C.L., E-mail: cahill@gwu.edu [Department of Chemistry and Elliott School of International Affairs, The George Washington University, Washington, DC 20052 (United States); Feldman, G.; Briscoe, W.J. [Department of Physics, The George Washington University, Washington, DC 20052 (United States)

    2014-06-15

    The development of a curriculum for nuclear materials courses targeting students pursuing Master of Arts degrees at The George Washington University is described. The courses include basic concepts such as radiation and radioactivity as well as more complex topics such the nuclear fuel cycle, nuclear weapons, radiation detection and technological aspects of non-proliferation.

  20. The Science of Nuclear Materials: A Modular, Laboratory-based Curriculum

    International Nuclear Information System (INIS)

    Cahill, C.L.; Feldman, G.; Briscoe, W.J.

    2014-01-01

    The development of a curriculum for nuclear materials courses targeting students pursuing Master of Arts degrees at The George Washington University is described. The courses include basic concepts such as radiation and radioactivity as well as more complex topics such the nuclear fuel cycle, nuclear weapons, radiation detection and technological aspects of non-proliferation

  1. Catalytic Activity and Nuclear Radiation; L'activite catalytique et les rayonnements nucleaires; Kataliticheskaya aktivnost' i yadernoe izluchenie; La actividad catalitica y las radiaciones nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Turkevich, J.; Ikawa, T.; Nozaki, F.; Stamires, D. [Princeton University, N.J (United States)

    1963-11-15

    New work is to be presented on the effect of gamma radiation on the catalytic activity of alumina silica gel and decationateii molecular sieves of the Linde Y-type. A graded set of alumina silica coprecipitated gel catalysts have been made with the atomic ratio of alumina silica having ten different equally spaced values. Another set of catalysts was made by partially replacing the sodium of a Linde molecular Y-sieve Na{sub 56}(AlO{sub 2}){sub 56}(SiO{sub 2}){sub 126} by ammonium ion and then decomposing it to drive both the ammonia and the water away to produce a de-cationated position in the sieve: A graded set of such catalysts has been prepared containing varying amounts of these de-cationated sites from zero to 100% of the original sodium content. These two sets of catalysts have been characterized for catalytic activity before and after gamma radiation by studying the kinetics of cumene decomposition into benzene and propylene, the double bond isomerization of butene-1 to butene-2 and the hydrogen/deuterium exchange reaction. The number of active sites was determined by progressive poisoning using quinoline and the activity per site was thus characterized. The materials were also studied by measuring the electron spin resonance of adsorbed electron transfer agents such as triphenylamine, perylen'e and symmetrical diphenyl ethylene. The ability to transfer electrons was found to be parallel to catalytic activity. Proton resonance of adsorbed water was'used to characterize the nature of the catalytic site. (author) [French] Les auteurs se proposent de presenter des recherches nouvelles consacrees aux effets des rayons gamma sur l'activite catalytique du gel de silice et d'alumine et des tamis moleculaires decationises du type Linde Y. Pour cela ils ont prepare une serie de catalyseurs en coprecipitant de la silice et de l'alumine dans des proportions successivement egales a dix nombres regulierement espaces. Ils ont prepare une deuxieme serie de catalyseurs en

  2. [Nuclear Structure Research] at the Triangle Universities Nuclear Laboratory: Annual report No. 27, 1 September 1987--31 August 1988

    International Nuclear Information System (INIS)

    1988-01-01

    This report contains papers in the following topics: Fundamental symmetries in the nucleus; Dynamics of few-nucleon systems; Tensor forces in light nuclei; nucleon-nucleus interactions mechanisms; Nuclear structure and reactions; and Development and instrumentation

  3. Nuclear structure research at the Triangle Universities Nuclear Laboratory. Progress report, 1 September 1993--31 August 1994

    International Nuclear Information System (INIS)

    Mitchell, G.E.

    1994-01-01

    This report contains discussions on the following topics. Fundamental symmetries in the nucleus; internucleon reactions; dynamics of very light nuclei; the many-nucleon problem; and nuclear instruments and methods

  4. Derived release limits (DRL's) for airborne and liquid effluents from the Chalk River Nuclear Laboratories during normal operations

    International Nuclear Information System (INIS)

    Palmer, J.F.

    1981-02-01

    Derived release limits (DRL's), based on regulatory dose limits, have been calculated for routine discharges of radioactivity in airborne and liquid effluents from the Chalk River Nuclear Laboratories. Three types of sources of airborne effluents were considered: the NRX/NRU stack, the 61 m stack connected to the 99 Mo production facility, and a roof vent typical of those installed on several buildings on the site. Sources of liquid effluents to the Ottawa River were treated as a single source from the site as a whole. Various exposure pathways to workers on the site and to members of the public outside the site boundary were considered in the calculations. The DRL's represent upper limits for routine emissions of radioactivity from the Chalk River Nuclear Laboratories to the surrounding environment. Actual releases are regulated by Administrative Levels, set lower than the DRL's, and are confirmed by monitoring. (author)

  5. User Guide for the Plotting Software for the Los Alamos National Laboratory Nuclear Weapons Analysis Tools Version 2.0

    Energy Technology Data Exchange (ETDEWEB)

    Cleland, Timothy James [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2018-01-02

    The Los Alamos National Laboratory Plotting Software for the Nuclear Weapons Analysis Tools is a Java™ application based upon the open source library JFreeChart. The software provides a capability for plotting data on graphs with a rich variety of display options while allowing the viewer interaction via graph manipulation and scaling to best view the data. The graph types include XY plots, Date XY plots, Bar plots and Histogram plots.

  6. Application of laboratory data from small-scale simulators to human performance issues in the nuclear industry

    International Nuclear Information System (INIS)

    Spettell, C.M.

    1986-01-01

    Laboratory analogs of nuclear power plant tasks were simulated on personal computers in two experimental studies. Human performance data were collected during each experimental study. The goal of the first experiment was to validate a quantitative model of dependence among human errors during testing, calibration, and maintenance activities. This model, the Multiple Sequential Failure (MSF) model (NUREG/CR-2211) has been used to quantify dependent human error failure probabilities for human reliability analyses in Probabilistic Risk Assessments (PRAs). The goal of the second experiment was to examine the relationship among psychological and behavioral characteristics of individuals and their performance at controlling a simulated nuclear power plant. These studies demonstrated the usefulness of the experimental psychology approach for validating models of human performance at nuclear power plant tasks

  7. Self-Reliance and Sustainability of Nuclear Analytical Laboratories in Small States of Central Europe: The Slovenian Case

    International Nuclear Information System (INIS)

    Korun, M.

    2013-01-01

    The Jožef Stefan Institute is the largest research institution in Slovenia devoted to research in many fields of science and technology. Within the Institute several nuclear analytical laboratories operate, making it the largest nuclear research institution in Slovenia. The Laboratory for Radiation Measuring Systems and Radioactivity Measurements belongs to the Department for Medium and Low Energy Physics, which is engaged mainly in nuclear physics, interactions of radiation with matter and its applications, and in providing a service in radiation measurements and dosimetry. The laboratory was founded almost thirty years ago, when the three accelerators, which formed the basis of the research infrastructure of the department, came to the end of their working lives. The personnel took the opportunity to participate in the programme of radioactivity monitoring of the Krško Nuclear Power Plant, which at that time went into operation. The equipment, i.e., the detectors, electronics and computers, was available, but the expertise was limited to the techniques of measurement and analysis in gamma-ray spectrometry. The absence of the expertise in radiochemistry was a serious drawback, therefore new methods in detector calibration had to be developed. In the following years the laboratory participated not only in the monitoring programme of the nuclear power plant but also in other radioactivity monitoring programmes in Slovenia. Since its foundation the laboratory did not receive any financial support either from the state or from the department. Support in equipment and expertise was received from the International Atomic Energy Agency, the Government of the United States and the United Nations Development Programme. The laboratory is engaged mainly in gamma-ray spectrometric measurements of samples from the natural, living and working environments. The main customers are the Krško Nuclear Power Plant and governmental organizations and agencies. The work for these

  8. Annual Continuation And Progress Report For Nuclear Theory At Lawrence Livermore National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Ormand, W. E. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Quaglioni, S. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Schunck, N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Vogt, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Vranas, P. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-10-26

    Nuclear Theory research under the auspices of the Department of Energy (DOE) Office of Nuclear Physics (NP) is conducted within several funding sources and projects. These include base funding, and early career award, and a collaborative SciDAC-­3 award that is jointly funded by DOE/NP and the Advanced Simulations and Computations (ASC) effort within the National Nuclear Security Agency (NNSA). Therefore, this annual report is organized within the three primary sections covering these projects.

  9. Termination of Safeguards for Accountable Nuclear Materials at the Idaho National Laboratory

    International Nuclear Information System (INIS)

    Holzemer, Michael; Carvo, Alan

    2012-01-01

    Termination of safeguards ends requirements of Nuclear Material Control and Accountability (MC and A) and thereby removes the safeguards basis for applying physical protection requirements for theft and diversion of nuclear material, providing termination requirements are met as described. Department of Energy (DOE) M 470.4 6 (Nuclear Material Control and Accountability [8/26/05]) stipulates: 1. Section A, Chapter I (1)( q) (1): Safeguards can be terminated on nuclear materials provided the following conditions are met: (a) 'If the material is special nuclear material (SNM) or protected as SNM, it must be attractiveness level E and have a measured value.' (b) 'The material has been determined by DOE line management to be of no programmatic value to DOE.' (c) 'The material is transferred to the control of a waste management organization where the material is accounted for and protected in accordance with waste management regulations. The material must not be collocated with other accountable nuclear materials.' Requirements for safeguards termination depend on the safeguards attractiveness levels of the material. For attractiveness level E, approval has been granted from the DOE Idaho Operations Office (DOE ID) to Battelle Energy Alliance, LLC (BEA) Safeguards and Security (S and S). In some cases, it may be necessary to dispose of nuclear materials of attractiveness level D or higher. Termination of safeguards for such materials must be approved by the Departmental Element (this is the DOE Headquarters Office of Nuclear Energy) after consultation with the Office of Security.

  10. Affordable and Secure Nuclear Energy Development: DOE Investments and Laboratory R&D Challenges - A Review

    Energy Technology Data Exchange (ETDEWEB)

    Dasari, Venkateswara Rao [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-12-20

    The need for sustainable and secure nuclear energy is summarized. Driven by economics and public-private partnerships, the technology is evolving. Cost control and regulatory simplification are needed for a nuclear renaissance. Small modular reactors--simple, scalable, and inherently safe--may be the future.

  11. Report of the research results with University of Tokyo, Nuclear Engineering Research Laboratory's Facilities in fiscal 1986

    International Nuclear Information System (INIS)

    1987-01-01

    This book contains a large number of reports of studies made in 1986 through joint utilization of the nuclear reactor 'Yayoi' and electron beam type accelerator which are installed in the Nuclear engineering Research Laboratory, Faculty of Engineering, University of Tokyo. The reports presented deal with 'Behaviors of Neutrons in Fast Reactor Blanket Shield', 'Effect of Fast Neutron Radiation on Organic Materials', 'Production and Recovery of Tritium in Nuclear Fusion Reactor Blanket System', 'Bench Mark Experiment of Effect of Atmospheric Scattering of Neutron', 'Experimental Evaluation of Nuclear Heat Rate', 'Fast Neutron Shielding Experiment', 'Effect of Fast Neutron Radiation on Hot Water', 'Neutron Shielding Experiment', 'Biological and Medical Application of 'Yayoi' Neutron', 'Effect of Fission-Fusion Correlation Radiation on Semiconductors (Si, GaAs)', 'Application of Fast Neutron to Radiography Technology', 'Streaming in Offset Slit', 'Design and Evaluation of New Reactor', 'LET Effect on Organic Material', 'Handling, Separation and Recovery of Transuranium Elements', 'Reactor Operation Support System Using Knowledge Engineering Technique', 'Application of Shape Memory Alloys to Nuclear Reactor Devices', 'Numerical Simulation of Turbulent Hear Transfer', and many other studies. (Nogami, K.)

  12. Developments of Spent Nuclear Fuel Pyroprocessing Technology at Idaho National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Michael F. Simpson

    2012-03-01

    This paper summarizes research in used fuel pyroprocessing that has been published by Idaho National Laboratory over the last decade. It includes work done both on treatment of Experimental Breeder Reactor-II and development of advanced technology for potential scale-up and commercialization. Collaborations with universities and other laboratories is included in the cited work.

  13. Nuclear Structure Research at the Triangle Universities Nuclear Laboratory. [Final report, 1 April 1988 to 4 May 1998

    International Nuclear Information System (INIS)

    Mitchell, Gary E.

    2000-01-01

    Much of the research is focused on symmetries and symmetry breaking. The authors have emphasized the effects of the many body system on symmetry breaking--the parity violation studies. A parallel interest lies in the effects of symmetry breaking on the many body system (as manifested in the statistical distributions characterizing the system). Another major activity has involved few nucleon scattering. The primary technical efforts are in low temperature targetry. The service activity for the nuclear science community is Nuclear Data Evaluation. Results achieved in these areas during the period of the grant are summarized. Details are given in the 10 annual progress reports, 10 Ph.D. dissertations, and approximately 150 publications

  14. Les jeux de hasard chez les enfants et les adolescents

    Science.gov (United States)

    Gupta, Rina; Pinzon, Jorge L

    2012-01-01

    RÉSUMÉ Même si, au Canada, les mineurs n’ont pas le droit de jouer à des jeux de hasard légalisés, les adolescents participent souvent à des jeux de hasard soit légalisés (produits de loterie, casino, terminaux de jeux vidéo), soit autonomes (jeux de cartes, paris sportifs, dés) à la maison et en milieu scolaire. Chez les adultes, le taux de prévalence de dépendance aux jeux de hasard au cours de la vie se situe entre 1 % et 2 %. D’après les données existantes, la prévalence chez les adolescents serait de deux à quatre fois plus élevée. On ne sait pas grand-chose des facteurs de risque d’apparition et de perpétuation d’une dépendance pathologique aux jeux de hasard. Le présent document de principes vise à informer les pédiatres, les médecins de famille et les autres professionnels de la santé des connaissances émergentes sur les jeux de hasard pendant l’enfance et l’adolescence et du risque de conséquences graves qui s’y rattachent. On y exhorte également les gouvernements fédéral, provinciaux et territoriaux à inclure cette question dans leur programme et à tenir compte des facteurs sociopolitiques associés aux jeux de hasard.

  15. Feasibility study on introduction of KOLAS (Korea Laboratory Accreditation Scheme) in nuclear examination facility

    International Nuclear Information System (INIS)

    Park, Dae Gyu; Hong, K. P.; Song, W. S.; Min, D. K.

    1999-07-01

    To be an institute officially authorized by the KOLAS, the understanding and the analysis of following contents is required.: the understanding of concept required to get the accreditation of testing, the system specifying an internationally accredited testing and examination organization, international organization in the field of laboratory accreditation, domestic laboratory accreditation organization(KOLAS), the investigation of the regulations with laboratory accreditation in Korea, the investigation of the procedures accrediting a testing and examination organization, the investigation of general requirements(ISO 17025) for a testing and examination organization. (author)

  16. Triangle Universities Nuclear Laboratory: Progress report - TUNL XXVII, 1 September 1987--31 August 1988

    International Nuclear Information System (INIS)

    1988-01-01

    This report contains papers in the following areas: fundamental symmetries in the nucleus; dynamics of few-nucleon systems; tensor forces in light nuclei; nucleon-nucleus interaction mechanisms; nuclear structure and reactions; and development and instrumentation

  17. January 1978 monthly highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Mynatt, F.R.

    1978-01-01

    Highlights of technical progress during January 1978 are presented for sixteen separate program activities which comprise the ORNL research program for the Office of Nuclear Regulatory Research's Division of Reactor Safety Research

  18. Triangle Universities Nuclear Laboratory annual report, 1 January 1980-31 December 1980

    International Nuclear Information System (INIS)

    1980-01-01

    Research is described for: neutron cross section experiments; neutron polarization studies; high resolution elastic and inelastic scattering studies; charged particle experiments with polarized beams; radioactive capture reactions; accelerator based atomic physics; instrumentation; computer related development; and nuclear theory and phenomenology

  19. Monthly highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory, March 1977

    International Nuclear Information System (INIS)

    Fee, G.G.

    1977-01-01

    Highlights of technical progress during March 1977 are presented for thirteen separate program activities which comprise the ORNL research program for the Office of Nuclear Regulatory Research's Division of Reactor Safety Research

  20. Triangle Universities Nuclear Laboratory annual report: TUNL XVI, 1 January 1977--31 December 1977

    International Nuclear Information System (INIS)

    1977-01-01

    A summary of research is presented on nuclear physics. Included in the studies are neutron and fission physics, neutron polarization studies, high resolution studies, gamma ray spectroscopy, charged-particle reactions with polarized beams, radiative capture reactions, atomic collision physics, heavy ion physics, the development of facilities, ion source development, accelerator development and instrumentation computer-related development, and nuclear theory and phenomenology. A list of publications is included

  1. Overview of research in physics and health sciences at the Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Milton, J.C.D.

    1988-01-01

    Toxicology research was a logical extension of existing program at Chalk River. Research in radiotoxicology has been going on there since the early forties. An overview of the existing physics and health sciences research programs operating at the Research Company of Atomic Energy of Canada Limited was presented. Programs in nuclear physics, heavy ion nuclear physics, astrophysical neutrino physics, condensed matter physics, fusion, biology, dosimetry, and environmental sciences were briefly described. In addition, a description of the research company organization was provided

  2. Applications of nuclear techniques for in vivo body composition studies at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    Cohn, S.H.; Ellis, K.J.; Vartsky, D.; Vaswani, A.N.; Wielopolski, L.

    1986-01-01

    The development and clinical application of a number of nuclear techniques for studying body composition is described. These techniques include delayed neutron activation for the analysis of calcium, phsophorus, sodium and chlorine and prompt-gamma activation for the measurement of nitrogen and cadmium. In addition, the measurement of in vivo iron by nuclear resonance scattering and lead by x-ray fluorescence is described. (author)

  3. The production control laboratories of the plutonium extraction Plant at Marcoule. Six years operating experience: 1957 - 1963; Les laboratoires de fabrication de l'usine d'extraction du plutonium de Marcoule. Experience des 6 premieres annees de fonctionnement: 1957 - 1963

    Energy Technology Data Exchange (ETDEWEB)

    Fontaine, A [CEA Marcoule, Centre de Production de Plutonium, 30 (France)

    1964-07-01

    In this paper, the author attempts to sum up the conditions prevailing, after six years of operation, in the Laboratories of the Plutonium Extraction Plant. The origins and objectives are briefly reviewed, the technology and staff recruitment policy are examined, and progress made is shown. The methods used as well as the scope of application and limits imposed at the present state are considered. Past achievements and further possibilities in the next future are examined. An attempt has been made to bring out the outlooks for the more distant future and to investigate the conditions required for the successful carrying out of the program. (author) [French] Le present rapport tente, apres 6 ans de vie, de faire le point de la situation des Laboratoires du Service Extraction du Plutonium. Apres un rapide retour sur les origines et les objectifs, apres quelques considerations sur le recrutement et la technologie situant le contexte de leurs progres, nous etudierons les methodes, leurs domaines d'application, leurs limites actuelles. Nous ferons un bilan des realisations et des possibilites pour un avenir proche. Nous tenterons de degager quelques vues plus lointaines et les conditions pour les mener a bonne fin. (auteur)

  4. A new nuclear materials laboratory at Queen's University

    Energy Technology Data Exchange (ETDEWEB)

    Holt, R.A.; Daymond, M.R., E-mail: holt@queensu.ca, E-mail: daymond@queensu.ca [Queen' s University, Department of Mechanical and Materials Engineering, Kingston, ON (Canada)

    2015-07-01

    The Reactor Materials Testing Laboratory (RMTL) at Queen's University and the results of commissioning tests are described. RMTL uses energetic protons (up to 8MeV) to simulate fast neutron damage in materials for reactor components. The laboratory is also capable of He implantation (up to 12 MeV) to simulate the effects of transmutation He in reactor components. The $17.5M laboratory comprises a new building, a 4MV tandem accelerator, two electron microscopes, mechanical testing and specimen preparation equipment, and a radiation detection laboratory. RMTL focusses on studying dynamic effects of irradiation (irradiation creep, irradiation growth, irradiation induced swelling, fatigue under irradiation) in-situ. (author)

  5. Laboratory quality assurance and its role in nuclear fuel reprocessing and refabrication

    International Nuclear Information System (INIS)

    Delvin, W.L.

    1977-09-01

    For the overall quality assurance (QA) program to be fully effective, the principles of QA must be applied to the operation of the analytical chemistry laboratory itself. This paper shows how QA is used at HEDL to produce confidence in each analytical result. Use of QA has resulted in the following benefits: poor laboratory practices have been found and eliminated, and an already adequate record system was improved even further

  6. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Draft Environmental Impact Statement

    International Nuclear Information System (INIS)

    1994-06-01

    This volume contains the following attachments: transportation of Naval spent nuclear fuel; description of Naval spent nuclear receipt and handling at the Expended Core Facility at the Idaho National Engineering Laboratory; comparison of storage in new water pools versus dry container storage; description of storage of Naval spent nuclear fuel at servicing locations; description of receipt, handling, and examination of Naval spent nuclear fuel at alternate DOE facilities; analysis of normal operations and accident conditions; and comparison of the Naval spent nuclear fuel storage environmental assessment and this environmental impact statement

  7. Laboratori virtual d'ensenyament-aprenentatge: solució numèrica de les equacions de conservació mitjançant volums finits aplicades a superfícies esteses

    Directory of Open Access Journals (Sweden)

    Cintia Casado Merino

    2014-12-01

    Full Text Available En este treball es presenta el disseny d’un Laboratori virtual d’ensenyament-aprenentatge per a la resolució d’un problema model de Transferència de la Calor en la matèria d’Enginyeria Tèrmica del II curs del Grau d’Enginyer de Tecnologies Industrials de la Universidad Rey Juan Carlos de Madrid. En l’àmbit de la Dinàmica de Fluids Computacional i per mitjà de l’ús del programari de simulació d’Ansys Fluent s’introduïx l’alumne al disseny, modelatge del sistema, resolució, anàlisi i validació del model. El resultat d’esta experiència d’aprenentatge és no sols la mera resolució del problema, inabordable amb mètodes didàctics tradicionals, sinó el desenvolupament de la combinació de destreses, habilitats i coneixements necessaris per a l’adquisició d’algunes de les competències generals i específiques de l’Enginyeria Tèrmica.

  8. The main rules regarding the management of solid waste and liquid effluent contaminated during use at nuclear medicine departments; Les principales regles de gestion des dechets solides et des effluents liquides contamines dans les services de medecine nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Boudouin, E. [Autorite de Surete Nucleaire, Direction des rayonnements ionisants et de la sante, 75 - Paris (France)

    2011-02-15

    This article describes the key requirements applicable to the management of contaminated medical waste and effluent from hospitals and health care centres, and more especially from nuclear medicine departments that use radionuclides for the purposes of diagnosis (in vivo or in vitro) or in patient treatment. It also presents the key management regulations, making a distinction between contaminated solid waste and contaminated liquid waste from such nuclear medicine departments. (author)

  9. Independent Confirmatory Survey Report for the University of Arizona Nuclear Reactor Laboratory, Tucson, Arizona DCN:2051-SR-01-0

    International Nuclear Information System (INIS)

    Altic, Nick A.

    2011-01-01

    The University of Arizona (University) research reactor is a TRIGA swimming pool type reactor designed by General Atomics and constructed at the University in 1958. The reactor first went into operation in December of 1958 under U.S. Nuclear Regulatory Commission (NRC) license R-52 until final shut down on May 18, 2010. Initial site characterization activities were conducted in February 2009 during ongoing reactor operations to assess the radiological status of the Nuclear Reactor Laboratory (NRL) excluding the reactor tank, associated components, and operating systems. Additional post-shutdown characterization activities were performed to complete characterization activities as well as verify assumptions made in the Decommissioning Plan (DP) that were based on a separate activation analysis (ESI 2009 and WMG 2009). Final status survey (FSS) activities began shortly after the issuance of the FSS plan in May 2011. The contractor completed measurement and sampling activities during the week of August 29, 2011.

  10. Report of the research results with University of Tokyo, Nuclear Engineering Research Laboratory's Facilities in fiscal 1991

    International Nuclear Information System (INIS)

    1992-01-01

    This publication summarizes the results of the joint utilization of the nuclear reactor 'Yayoi' and the electron beam accelerator in the Nuclear Engineering Research Laboratory, University of Tokyo, in fiscal year 1991. The Yayoi was operated smoothly throughout the year, and the number of research themes, for which the reactor Yayoi was jointly utilized, and the related themes reached 21 cases. After the linear accelerator was reconstructed as the twin linac, the joint utilization was resumed in October, 1989, and the number of research themes, was 15 cases. In this publication, in addition to the utilization reports, also the reports of 15 cases of Yayoi Study Meetings held in fiscal year 1991 are collected. (K.I.)

  11. Creating stars, supernovae, and the big bang in the laboratory: Nuclear Astrophysics with the National Ignition Facility

    International Nuclear Information System (INIS)

    Mathews, G.J.

    1994-02-01

    This talk has been prepared for the Symposium on Novel Approaches to Nuclear Astrophysics hosted by the ACS Division of Nuclear Chemistry and Technology for the San Diego ACS meeting. This talk indeed describes a truly novel approach. It discusses a proposal for the construction of the National Ignition Facility which could provide the most powerful concentration of laser energy yet attempted. The energy from such a facility could be concentrated in such a way as to reproduce, for the first time in a terrestrial laboratory, an environment which nearly duplicates that which occurs within stars and during the first few moments of cosmic creation during the big bang. These miniature versions of cosmic explosions may allow us to understand better the tumultuous astrophysical environments which have profoundly influenced the origin and evolution of the universe

  12. A study of J-coupling spectroscopy using the Earth's field nuclear magnetic resonance inside a laboratory.

    Science.gov (United States)

    Liao, Shu-Hsien; Chen, Ming-Jye; Yang, Hong-Chang; Lee, Shin-Yi; Chen, Hsin-Hsien; Horng, Herng-Er; Yang, Shieh-Yueh

    2010-10-01

    In this paper, an instrumentation of the Earth's field nuclear magnetic resonance (EFNMR) inside a laboratory is presented. A lock-in analysis (LIA) technique was proposed to enhance the signal-to-noise ratio (SNR). A SNR of 137.8 was achieved in a single measurement for 9 ml tap water, and the LIA technique significantly enhanced the SNR to 188 after a 10-average in a noisy laboratory environment. The proton-phosphorus coupling in trimethyl phosphate ((CH(3)O)(3)PO) with J-coupling J[H,F]=(10.99±0.013) Hz has been demonstrated. The LIA technique improves the SNR, and a 2.6-fold improvement in SNR over that of the frequency-adjusted averaging is achieved. To reduce the noise in EFNMR, it was suggested that the LIA technique and the first order gradient shim be used to achieve a subhertz linewidth.

  13. Cost-effective instrumentation and control upgrades for commercial nuclear power plants surety principles developed at Sandia National Laboratories

    International Nuclear Information System (INIS)

    Rochau, G.E.; Dalton, L.J.

    1998-01-01

    Many nuclear power plants use instrument and control systems based on analog electronics. The state of the art in process control and instrumentation has advanced to use digital electronics and incorporate advanced technology. This technology includes: distributed microprocessors, fiber optics, intelligent systems (neutral networks), and advanced displays. The technology is used to optimize processes and enhance the man-machine interface while maintaining control and safety of the processes. Nuclear power plant operators have been hesitant to install this technology because of the cost and uncertainty in the regulatory process. This technology can be directly applied in an operating nuclear power plant provided a surety principle-based 'administrator' hardware system is included in parallel with the upgrade. Sandia National Laboratories has developed a rigorous approach to High Consequence System Surety (HCSS). This approach addresses the key issues of safety, security, and control while satisfying requirements for reliability and quality. We believe that HCSS principles can be applied to nuclear power plants in a manner that allows the off-the-shelf use of process control instrumentation while maintaining a high level of safety and enhancing the plant performance. We propose that an HCSS Administrator be constructed as a standardized approach to address regulatory issues. Such an administrator would allow a plant control system to be constructed with commercially available, state-to-the-art equipment and be customized to the needs of the individual plant operator. (author)

  14. Cost-effective instrumentation and control upgrades for commercial nuclear power plants using surety principles developed at Sandia National Laboratories

    International Nuclear Information System (INIS)

    Rochau, G.E.; Dalton, L.J.

    1997-01-01

    Many nuclear power plants use instrument and control systems based on analog electronics. The state of the art in process control and instrumentation has advanced to use digital electronics and incorporate advanced technology. This technology includes distributed microprocessors, fiber optics, intelligent systems (neural networks), and advanced displays. The technology is used to optimize processes and enhance the man-machine interface while maintaining control and safety of the processes. Nuclear power plant operators have been hesitant to install this technology because of the cost and uncertainty in the regulatory process. This technology can be directly applied in an operating nuclear power plant provided a surety principle-based open-quotes administratorclose quotes hardware system is included in parallel with the upgrade Sandia National Laboratories has developed a rigorous approach to High Consequence System Surety (HCSS). This approach addresses the key issues of safety, security, and control while satisfying requirements for reliability and quality. HCSS principles can be applied to nuclear power plants in a manner that allows the off-the-shelf use of process control instrumentation while maintaining a high level of safety and enhancing the plant performance. We propose that an HCSS administrator be constructed as a standardized approach to address regulatory issues. Such an administrator would allow a plant control system to be constructed with commercially available, state-of-the-art equipment and be customized to the needs of the individual plant operator

  15. Nuclear magnetic resonance common laboratory, quadrennial report; Laboratoire commun de resonance magnetique nucleaire, rapport quadriennal 1994-1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-12-31

    This quadrennial report of the nuclear magnetic resonance common laboratory gives an overview of the main activities. Among the different described activities, only one is interesting for the INIS database: it concerns the Solid NMR of cements used for radioactive wastes storage. In this case, the NMR is used to characterize the structure of the material and the composition, structure and kinetics of formation of the alteration layer which is formed at the surface of concrete during water leaching conditions. The NMR methodology is given. (O.M.)

  16. Report of the research results with University of Tokyo, Nuclear Engineering Research laboratory's Facilities in fiscal 1992

    International Nuclear Information System (INIS)

    1993-01-01

    This publication summarizes the results of the joint utilization of the research 'Yayoi' and the electron beam accelerator in the Nuclear Engineering Research Laboratory, University of Tokyo, in the fiscal year 1992. The Yayoi was operated smoothly through the year, and the number of research themes, for which the reactor Yayoi was jointly utilized and the related themes reached 23 cases. The research themes of the linac count up to 17, after its reconstruction to be twin-linac. In this publication, in addition to the utilization reports, also the 16 reports of Yayoi Study Meetings held in fiscal year 1992 are collected. (J.P.N.)

  17. Standing Up a Narcotic Confirmation Laboratory for the Russian Federation Ministry of Defense Nuclear Personnel Reliability Program

    International Nuclear Information System (INIS)

    Lukyanenko, Victor; Eisele, Gerhard R.; Coates, Cameron W.

    2010-01-01

    Through a cooperative effort between the U. S. Department of Energy and the Russian Federation (RF) Ministry of Defense (MOD) a Personnel Reliability Program (PRP) for the nuclear handlers within the RF MOD has been implemented. A key element in the RF MOD PRP is the detection and confirmation of narcotic use in subject military and civilian personnel. This paper describes the process of narcotics screening and testing in the RF MOD and explains the confirmation process once screening has shown a positive result. Issues of laboratory certification, employee certification, employee training, sample chain-of-custody, and equipment needs will be addressed.

  18. Report of the research results with University of Tokyo, Nuclear Engineering Research Laboratory's Facilities in fiscal 1989

    International Nuclear Information System (INIS)

    1990-01-01

    This is the report of the results of research carried out by the common utilization of the reactor 'Yayoi' and an electron accelerator in the Nuclear Engineering Research Laboratory in fiscal year 1989. In fiscal year 1989, the research themes using the reactor Yayoi or related to it were 15, and those using the linear accelerator reached 12, thus the common utilization attracted the strong interest of users. The Yayoi has been operated satisfactorily without trouble. The results of the research carried out by the common utilization of the Yayoi and a linac and the reports of 12 Yayoi research meetings in fiscal year 1989 are collected. (J.P.N.)

  19. Educational and laboratory base for the expert training on physical protection of nuclear materials: the requirements and experience of practical implementation

    International Nuclear Information System (INIS)

    Bondarev, P.V.; Pogozhin, N.S.; Ryzhukhin, D.V.; Tolstoy, A.I.

    2002-01-01

    Full text: In expert training on physical protection of nuclear materials (NMPP) an educational and laboratory base has special importance. In these laboratories the students receive practical skills concerning physical protection systems (PPS). The basic requirements for creating such base are formulated in a certain educational program implemented at an educational institution. Thus it is necessary to take into account the following features of a modern nuclear object PPS: restriction of an object visiting with the purpose of acquaintance with features of a certain object PPS; dynamical change of PPS component nomenclature; increase of use of computer facilities for managing all PPS subsystems; increase of integration degree of separate subsystems in a uniform PPS complex; high cost of PPS components. Taking that into consideration a university, which assumes to begin the expert training on NMPP, is compelled to solve the following tasks: creation of its own laboratory base. The implementation of practical occupations with visiting a nuclear object cannot be executed practically; definition of quantity and structure of educational laboratories. Thus the features of the implemented educational plan should be taken into account in addition; optimization of expenses on laboratory creation. The regular updating of laboratory equipment structure is impossible in a practical manner. Therefore unique correct decision is to supply laboratories with the equipment, which uses the typical technological decisions on performing the basic PPS functions (detection, delay, estimation of a situation, neutralization); development of laboratory work conducting procedures (laboratory practical works); technical support of the created laboratories. The certain experience of solving the listed tasks is accumulated at the Moscow Engineering Physics Institute (State University) (MEPhl) while implementing 'Physical Protection, Control and Accountability of Nuclear Materials' master

  20. Summarizing documentation of the laboratory automation system RADAR for the analytical services of a nuclear fuel reprocessing facility

    International Nuclear Information System (INIS)

    Brandenburg, G.; Brocke, W.; Brodda, B.G.; Buerger, K.; Halling, H.; Heer, H.; Puetz, K.; Schaedlich, W.; Watzlawik, K.H.

    1981-12-01

    The essential tasks of the system are on-line open-loop process control based on in-line measurements and automation of the off-line analytical laboratory. The in-line measurements (at 55 tanks of the chemical process area) provide density-, liquid-, level-, and temperature values. The concentration value of a single component may easily be determined, if the solution consists of no more than two phases. The automation of the off-line analytical laboratory contains laboratory organization including sample management and data organization and computer-aided sample transportation control, data acquisition and data processing at chemical and nuclear analytical devices. The computer system consists of two computer-subsystems: a front end system for sample central registration and in-line process control and a central size system for the off-line analytical tasks. The organization of the application oriented system uses a centralized data base. Similar data processing functions concerning different analytical management tasks are structured into the following subsystem: man machine interface, interrupt- and data acquisition system, data base, protocol service and data processing. The procedures for the laboratory management (organization and experiment sequences) are defined by application data bases. Following the project phases, engineering requirements-, design-, assembly-, start up- and test run phase are described. In addition figures on expenditure and experiences are given and the system concept is discussed. (orig./HP) [de

  1. Quality control at the Regional Centre of Nuclear Sciences chemical dosimetry laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Vivianne L.B. de; Melo, Roberto T. de; Silva, Danubia B. da; Pedroza, Eryka H.; Rodrigues, Kelia R.G.; Cunha, Manuela S. da; Figueiredo, Marcela D.C. de [Centro Regional de Ciencias Nucleares (CRCN-NE/CNEN-PE), Recife, PE (Brazil); Oliveira, Aristides, E-mail: vlsouza@cnen.gov.b, E-mail: rtmelo@cnen.gov.b [Hospital de Cancer de Pernambuco, Recife, PE (Brazil)

    2011-07-01

    Standards for accreditation of laboratories as in ISO 9001 in section: 4.11 require inspection, measuring and equipment testing; likewise, IEC 17025: 2005 in section: 5.5.2 requires the equipment to be calibrated or verified before being put into use. In our laboratory, quality control is often accomplished by standards set done by the laboratory scientists themselves; however, at present, Hellma secondary calibration standards (4026 - Holmium oxide - Filters: F0, F2, F3, F4 and filter didymium - F7) have been used in order to verify if errors in the laboratory have been close to the 1-2% margin. Control graphs were made by using the results of synthetically prepared standards and standardized spectral calibration certificates. The set of secondary calibration standards permits to check the accuracy of the spectrophotometers used in research for both the absorbance in the visible spectrum (at 440, 465, 546, 590 and 635 nm wavelengths) and for the wavelengths (270, 280, 300, 320 nm) of the ultraviolet light. Filters (F0, F2, F3, F4 and F7) are stable and do not suffer the influence of temperature (the influence is negligible), the F0 filter was being used as a blank. The purpose is to verify whether the spectrometer needs adjustments, an important procedure to check absorbance stability, baseline flatness, slit width accuracy and stray radiation. The calibration tests are performed annually in our laboratory and recalibration of Hellma secondary standards is recommended every two years. The results show that the Chemical Dosimetry Laboratory in CRCN has a calibrated spectrophotometer and their synthetic standards for Fricke dosimetry could be used as an alternative method for testing the proficiency and competence of calibration laboratories in accordance with the regulations and standards. (author)

  2. Commissioning of calorimeter in radiochemical laboratory for non-destructive assay of special nuclear materials

    International Nuclear Information System (INIS)

    Patra, S.; Mhatre, A.M.; Agarwal, C.; Chaudhury, S.; Pujari, P.K.

    2017-01-01

    Accounting of special nuclear materials (SNM) in every stages of nuclear fuel cycle is a necessity where one needs the quantitative estimation of SNM in variety of samples like sealed containers or finished products without altering its physical and chemical form. Non-destructive assay (NDA) techniques are capable of assaying such samples by the way of measuring passive/active neutrons/gamma rays or by the measurement of decay heat. Radiochemistry Division has been actively involved in the development and deployment of various NDA methodologies for meeting the demand of nuclear material accounting as and when required. Recently a radiometric calorimeter, developed by Reactor Control Division, E and I Group, BARC, has been installed in Lab C-33, Radiochemistry Division

  3. International conference - Papeete - French Polynesia - June 29, 2006. Scientists and nuclear tests consequence on health. The Colloquium; Conference internationale - Papeete - Polynesie Francaise - 29 juin 2006. Les scientifiques et les consequences des essais nucleaires sur la sante. Le colloque

    Energy Technology Data Exchange (ETDEWEB)

    Allison, Lyn [Parliamentarians for a Nuclear Free Future (Australia); International Nuclear Test Network, Paris (France); Cavillon, Arlette [Le Mouvement pour la Paix, 139 boulevard Victor Hugo, F-93400 St-Ouen (France); Rowland, Al [Institute of Molecular BioSciences, Massey University, Palmerston North (New Zealand); Parmentier, Claude [Institut Gustave-Roussy, lab. UPRES EA no. 27-10, 39 rue Camille Desmoulins, 94805 Villejuif cedex (France); Vahaire, Florent de; Brindel, Pauline; Doyon, Francoise [Unite 605 INSERM, Institut Gustave-Roussy, Villejuif (France); Drozdovich, Vladimir [International Agency for Research on Cancer - IARC, Lyon (France); Rachedi, Frederique; Boissin,; Sebag, Joseph; Shan, Larys; Bezeaud, Frederique; Petitdidier, Patrick [Tahiti, Polynesie francaise (France); Paaoafaite, John; Teuri, Joseph [Institut de recherche pour le developpement - IRD, Chemin de l' Arahiri, PK 3,5, Arue 98713, Polynesie francaise (France); Hirshon, Unutea [Assemblee de Polynesie francaise, BP 28 Papeete - 98713 Tahiti, Polynesie francaise (France); Luc, Helene [commission des Affaires etrangeres et de la Defense (France); ONG, Cara [Marshall Islands (United States); Bouveret, Patrice [Observatoire des armes nucleaires francaises, Centre de Documentation et de Recherche sur la Paix et les Conflits - CDRPC (France); Ruff, Tilman A. [Nossal Institute for Global Health, University of Melbourne (Australia); International Dept, Australian Red Cross (Australia); Smith, Nick [New Zealand Parliamentary Network for Nuclear Disarmament (New Zealand); Okumura, Eiji [Hibakusha Hiroshima (Japan); Valatx, Jean-Louis; Tardieu, Arlette; Hervieux, J. C. [Association des Veterans des Essais Nucleaires - Aven, 44-A rue de la Favorite, 69005 Lyon (France); NOONAN, Anne [Medical Association for Prevention of War - MAPW (Australia); Sercombe, Robert [Australia Parliament (Australia)

    2006-06-15

    Forty years after the first bomb in Moruroa, a conference to promote recognition and justice for all victims of nuclear tests. More than thirty speakers, scientists, legal experts, parliamentarians and members of associations from French Polynesia, Australia, Fiji, New Zealand, the United States, Japan, the Netherlands and France debated on June 29-30, at the President's palace in Papeete, on the rights of the victims of nuclear tests to be recognized by nuclear powers. During this conference, we heard scientists explain very clearly that contamination and irradiation had widespread consequences including on the gene pool of the victims. Today, damage found on the chromosomes of Polynesian thyroid cancer patients who lived 1000 km away from Moruroa is ten times higher than damage found on average nuclear workers. Researchers tell us that many of those who worked on nuclear sites die earlier. Average life expectancy for the veterans from New Zealand is for example 51 years - and for most of them a life marred by suffering and cancers. Researchers tell us that conducting credible surveys is becoming more and more difficult as the impact of radiations that were absorbed 20, 30 or even 40 years earlier is getting more difficult to discern from damages due to old age or other illnesses. Testimonies and information given at this conference are indispensable for the public to realize the actual impact of the nuclear tests as well as show the elected representatives how urgent it is to meet the expectations of the victims. The suffering and strong discontent of the former test site workers moved the parliamentarians as well as the public. The strong words that were said will have to give a human face to the law we will have to implement in order to do justice to the victims. An impact of nuclear testing on health and environment are experienced by many peoples in the world. The testing nations are of course the ones who should compensate the victims. But there is also a

  4. Cultural Resource Investigations for the Resumption of Transient Testing of Nuclear Fuels and Material at the Idaho National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Pace, Brenda R. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Williams, Julie B. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2013-11-01

    The U. S. Department of Energy (DOE) has a need to test nuclear fuels under conditions that subject them to short bursts of intense, high-power radiation called ‘transient testing’ in order to gain important information necessary for licensing new nuclear fuels for use in U.S. nuclear power plants, for developing information to help improve current nuclear power plant performance and sustainability, for improving the affordability of new generation reactors, for developing recyclable nuclear fuels, and for developing fuels that inhibit any repurposing into nuclear weapons. To meet this mission need, DOE is considering alternatives for re-use and modification of existing nuclear reactor facilities to support a renewed transient testing program. One alternative under consideration involves restarting the Transient Reactor Test (TREAT) reactor located at the Materials and Fuels Complex (MFC) on the Idaho National Laboratory (INL) site in southeastern Idaho. This report summarizes cultural resource investigations conducted by the INL Cultural Resource Management Office in 2013 to support environmental review of activities associated with restarting the TREAT reactor at the INL. These investigations were completed in order to identify and assess the significance of cultural resources within areas of potential effect associated with the proposed action and determine if the TREAT alternative would affect significant cultural resources or historic properties that are eligible for nomination to the National Register of Historic Places. No archaeological resources were identified in the direct area of potential effects for the project, but four of the buildings proposed for modifications are evaluated as historic properties, potentially eligible for nomination to the National Register of Historic Places. This includes the TREAT reactor (building #), control building (building #), guardhouse (building #), and warehouse (building #). The proposed re-use of these historic

  5. The Role of Computer-Based Educational Laboratories in Nuclear Engineering University Programmes

    International Nuclear Information System (INIS)

    Korolev, S.A.; Kosilov, A.N.; Chernov, E.V.; Vygovskiy, S.B.

    2014-01-01

    The specialized Educational and research laboratory 'Reactor physics, control and safe operation of WWER type NPP’ is based on the computer simulator of WWER -1000 and offers the real-time monitoring of data available to the WWER -1000 NPP control room operators, and provides a possibility to investigate reactor behavior in normal and abnormal situations. The laboratory supports interactive technologies and team-based activities that enable students to build their knowledge through required gateway courses and explore problems relevant to real life situations

  6. SOME RECENT TECHNOLOGY DEVELOPMENTS FROM THE UK'S NATIONAL NUCLEAR LABORATORY TO ENABLE HAZARD CHARACTERISATION FOR NUCLEAR DECOMMISSIONING APPLICATIONS

    Energy Technology Data Exchange (ETDEWEB)

    Farfan, E.; Foley, T.

    2010-02-11

    Under its programme of self investment Internal Research and Development (IR&D), the UK's National Nuclear Laboratory (NNL) is addressing the requirement for development in technology to enable hazard characterisation for nuclear decommissioning applications. Three such examples are described here: (1) RadBall developed by the NNL (patent pending) is a deployable baseball-sized radiation mapping device which can, from a single location, locate and quantify radiation hazards. RadBall offers a means to collect information regarding the magnitude and distribution of radiation in a given cell, glovebox or room to support the development of a safe, cost effective decontamination strategy. RadBall requires no electrical supplies and is relatively small, making it easy to be deployed and used to map radiation hazards in hard to reach areas. Recent work conducted in partnership with the Savannah River National Laboratory (SRNL) is presented. (2) HiRAD (patent pending) has been developed by the NNL in partnership with Tracerco Ltd (UK). HiRAD is a real-time, remotely deployed, radiation detection device designed to operate in elevated levels of radiation (i.e. thousands and tens of thousands of Gray) as seen in parts of the nuclear industry. Like the RadBall technology, the HiRAD system does not require any electrical components, the small dimensions and flexibility of the device allow it to be positioned in difficult to access areas (such as pipe work). HiRAD can be deployed as a single detector, a chain, or as an array giving the ability to monitor large process areas. Results during the development and deployment of the technology are presented. (3) Wireless Sensor Network is a NNL supported development project led by the University of Manchester (UK) in partnership with Oxford University (UK). The project is concerned with the development of wireless sensor network technology to enable the underwater deployment and communication of miniaturised probes allowing pond

  7. Clinico-laboratory aspects of anti-nuclear and anti-native DNA antibody tests.

    Science.gov (United States)

    Webb, J

    1978-01-01

    Available techniques for detection of anti-nuclear antibodies are here briefly reviewed. The relatively insensitive LE cell test has been largely supplanted by the indirect immunofluorescent ANA test which should be reported in terms of titre and pattern. Specific measurement of nDNA antibodies is now a regular technique in SLE diagnosis and management.

  8. A historical overview of nuclear structure studies in Strasbourg Laboratories: instrumentation, measurements and theory modelling—hand-in-hand

    Science.gov (United States)

    Beck, F. A.

    2018-05-01

    This article overviews a long period of an important evolution in the nuclear structure research in Strasbourg Laboratories, focussed on tracking of the weaker and weaker experimental signals carrying the more and more important physics messages. In particular we address the research of signatures of the collective behaviour of the nucleus as suggested in the early works of Bohr, Mottelson and Rainwater—at high and very high angular momenta—as well as the competition between the collective and non-collective excitation modes. These ambitious goals were possible to achieve only by constructing powerful spectrometers and developing related detectors, electronics and data acquisition systems. The theoretical modelling developed in parallel, provided essential guidance when choosing the right experiments and optimising their realisation. Theory calculations were equally helpful in interpreting the results of experiments leading to a more complete understanding of the underlying physics. Moreover, thanks to the development of heavy ion accelerators, the Strasbourg centre was the place where crossed the ways of many experimenters from European countries both from the Western and from the Central part of Europe, the place of the gradual development of more and more sophisticated European gamma-spectrometers in collaboration with more and more laboratories from the increasing number of countries allowing for the frontier-level studies of the nuclear behaviour at very high angular momenta.

  9. Laboratory training manual on the use of nuclear techniques in animal research

    International Nuclear Information System (INIS)

    1979-01-01

    The manual is designed to give the animal science researcher the basic terms and principles necessary for understanding radiation, its detection and measurement, its associated hazards, and some of the more common applications. Basic laboratory exercises to illustrate this purpose are included

  10. Jeux chez les Touaregs

    OpenAIRE

    Bernus, E.

    2012-01-01

    Parmi les jeux pratiqués par les Touaregs, il faut distinguer les jeux sportifs qui opposent deux équipes ou deux hommes, des jeux de société dans un cadre inscrit dans le sable, et les jeux d’esprit, véritables joutes verbales ; enfin, il faut signaler la construction par les enfants de jouets. Un certain nombre de jeux sont connus chez d’autres populations africaines. L’ouvrage de Charles Béart, Jeux et jouets de l’Ouest africain (1955), nous permet d’utiles comparaisons. Il est donc intére...

  11. The role of environmental survey laboratory at Nuclear Power Plants sites in India in environmental awareness and education programmes

    International Nuclear Information System (INIS)

    Hegde, A.G.; Singhal, R.K.; Sharma, R.M.

    2004-01-01

    Increased public awareness of nuclear power runs the gamut from immediate disengagement to whole-hearted approval of the use of and expansion of this energy source. The involved study carried out at different Environmental Survey Laboratories (ESL) is mainly responsible for the environment friendly attitudes of the large section of public. The scientists working in these laboratories collected vast data on different environmental issues related to releases of very low levels of radioactivity in the environment. The total dose received by a hypothetical individual member of public (critical group) evaluated at plant boundary i.e. 1.6 km zone is generally in the range of 2-50 mSv/y which is about two order of magnitude less compared to limits prescribed by the Atomic Energy Regulatory Board (AERB) and International Commission on Radiological Protection ICRP) suggested value of 1 mSv/y. The ESL staff give special attention to communicate to the public to clear their queries and dislodge, their misconception about the nuclear facilities operating at their site. At ESL, various environmental pathways responsible for radiation dose and their impact on different environmental matrices are nicely presented in the form of charts and posters. Site and off-site emergency exercise are conducted regularly in co-ordination with inter governmental agencies responsible for mass sheltering, medical facilities and transportation. During these exercises mass communication programme are conducted to educate the public in the vicinity of Nuclear Power Plants Sites. ESL also updates from time to time the population distribution data within 30 km radial zone and the dietary habit of the population within this zone. (author)

  12. Historic preservation requirements and the evaluation of cold war era nuclear facilities at Argonne National Laboratory-East

    International Nuclear Information System (INIS)

    Wescott, K. L.

    1999-01-01

    Project design for the decontamination and decommissioning (D and D) of federal facilities must address the requirements of the National Environmental Policy Act which includes compliance with the National Historic Preservation Act (NHPA). Section 106 of the NHPA requires that Federal agencies consider any effect their activities may have on historic properties. While a cultural property is not usually considered historic until it has reached an age of 50 years or older, special consideration is given to younger properties if they are of exceptional importance in demonstrating unique development in American history, architecture, archaeology, engineering, or culture. As part of the U.S. Department of Energy's (DOE's) D and D program at Argonne National Laboratory-East (ANL-E), site properties are evaluated within the context of the Cold War Era and within themes associated with nuclear technology. Under this program, ANL-E staff have conducted archival research on three nuclear reactor facilities, one accelerator, and one laboratory building. DOE and ANL-E have been working closely with the Illinois Historic Preservation Agency (IHPA) to determine the eligibility of these properties for listing on the National Register of Historic Places. In 1998, in consultation with the IHPA, the DOE determined that the reactor facilities were eligible. Memoranda of Agreement were signed between the DOE and the IHPA stipulating mitigation requirements for the recordation of two of these properties. The laboratory building was recently determined eligible and will likely undergo similar documentation procedures. The accelerator was determined not eligible. Similar studies and determinations will be required for all future D and D projects

  13. Activities on archaeology, art and cultural heritage conservation at the Applied Nuclear Physics Laboratory (LFNA), State University of Londrina (UEL)

    Energy Technology Data Exchange (ETDEWEB)

    Appoloni, Carlos R.; Parreira, Paulo S.; Lopes, Fabio [Universidade Estadual de Londrina (UEL), PR (Brazil). Dept. de Fisica. Lab. de Fisica Nuclear Aplicada]. E-mails: appoloni@uel.br; parreira@uel.br; bonn@uel.br

    2007-07-01

    The Laboratory of Applied Nuclear Physics from the State University of Londrina (LFNA/UEL) introduced Archaeometry and related issues pioneeringly among its main research lines in 1994. The current work aims at presenting an overview of the evolution of such activities and the development of human resources up to the present time. The activities related to Archaeology, Art and Cultural Heritage Conservation at the LFNA can be divided into five levels, as follows. (1) Study and implementation of experimental methodologies. (2) Related Basic Research - Physics issues involved in archaeometric applications have led to the need to conduct interesting specific basic research. (3) Works with specific materials - Among the several analysis conducted, the following should be mentioned: ceramics from the archaeological site Tupi Guarani Fazenda Sta. Dalmacia, PR; two archaeological sites in the Amazon Forest; objects from the MAE/USP collection; wall paintings in Imaculada Conceicao Church, SP; coins and other objects from the MHN/RJ; obsidians from Ecuador; etc. (4) Development of Human Resources. In this item there are two components: tutoring of scientific initiation students, Master's and Doctorate in atomic-nuclear methodologies applied to Archaeometry and a course of non-destructive nuclear techniques for the characterization of archaeological and art materials aimed at archaeologists and conservators, given since 1997. (5) Scientific collaborations - the construction of a common language between physicists and archeologists, conservators and other professionals involved in this area is an endeavor of mutual continuous learning and necessary conditions for the success of the projects. (author)

  14. Activities on archaeology, art and cultural heritage conservation at the Applied Nuclear Physics Laboratory (LFNA), State University of Londrina (UEL)

    International Nuclear Information System (INIS)

    Appoloni, Carlos R.; Parreira, Paulo S.; Lopes, Fabio

    2007-01-01

    The Laboratory of Applied Nuclear Physics from the State University of Londrina (LFNA/UEL) introduced Archaeometry and related issues pioneeringly among its main research lines in 1994. The current work aims at presenting an overview of the evolution of such activities and the development of human resources up to the present time. The activities related to Archaeology, Art and Cultural Heritage Conservation at the LFNA can be divided into five levels, as follows. (1) Study and implementation of experimental methodologies. (2) Related Basic Research - Physics issues involved in archaeometric applications have led to the need to conduct interesting specific basic research. (3) Works with specific materials - Among the several analysis conducted, the following should be mentioned: ceramics from the archaeological site Tupi Guarani Fazenda Sta. Dalmacia, PR; two archaeological sites in the Amazon Forest; objects from the MAE/USP collection; wall paintings in Imaculada Conceicao Church, SP; coins and other objects from the MHN/RJ; obsidians from Ecuador; etc. (4) Development of Human Resources. In this item there are two components: tutoring of scientific initiation students, Master's and Doctorate in atomic-nuclear methodologies applied to Archaeometry and a course of non-destructive nuclear techniques for the characterization of archaeological and art materials aimed at archaeologists and conservators, given since 1997. (5) Scientific collaborations - the construction of a common language between physicists and archeologists, conservators and other professionals involved in this area is an endeavor of mutual continuous learning and necessary conditions for the success of the projects. (author)

  15. The 5th questionnaire report of safety control on instrument in nuclear medicine laboratory

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-08-01

    The questionnaire was done every three years from 1986 for the ultimate purpose of safe medical examinations and this 5th one was performed in May, 1998 for the period of April, 1995-March, 1998. Subjects were 1,258 nuclear medicine facilities and answers were obtained in 81.6%. Questionnaire concerned the personnel involved in nuclear medical examinations, instruments, accidents occurred, matters possibly leading to accident, improvement in safety control, serious trouble and breakage of the instrument, request for the instrument manufacturers and so on. Summaries were: numbers of medical radiology technicians were increased, in vitro tests were decreased, SPECT instruments came into wide use, in accident and improvement cases, examination beds were arousing much interest, concerns to examine were further required, communication with the manufacturers was insufficient, and problems for Y2K were pointed out to be resolved. (K.H.)

  16. Les risques du travail

    CERN Document Server

    Thébaud-Mony, Annie

    2015-01-01

    Depuis les années 1990, les conditions de travail se sont peu à peu imposées dans le débat social. Néanmoins, la situation reste critique. Les risques traditionnels n'ont pas disparu : les manutentions lourdes, l'exposition professionnelle aux cancérogènes, au bruit ou aux vibrations demeurent répandues... De plus, certaines " améliorations " n'ont fait que déplacer et dissimuler les problèmes, telle l'externalisation des risques grâce à la sous-traitance. Dans le même temps, les transformations du travail et des modalités de gestion de la main-d'œuvre ont fragilisé les collectifs et accru l'isolement des salariés, conduisant à une montée visible de la souffrance psychique. Face à ces évolutions, il est plus que jamais nécessaire que tous les acteurs concernés, en particulier les salariés eux-mêmes et leurs représentants, s'approprient les connaissances indispensables pour améliorer la protection de la santé sur les lieux du travail. Tel est le but de ce livre, qui renouvelle int�...

  17. The International Atomic Energy Agency's Laboratories Seibersdorf and Vienna. Meeting the challenges of research and international co-operation in the application of nuclear techniques

    International Nuclear Information System (INIS)

    Krippl, E.

    1999-08-01

    The International Atomic Energy Agency therefore maintains a unique, multidisciplinary, analytical, research and training centre: the IAEA Laboratories, located at Seibersdorf near Vienna and at the Agency's Headquarters in the Vienna International Centre. They are organized in three branches: (i) the FAO/IAEA Agriculture and Biotechnology Laboratory: Soil Science, Plant Breeding, Animal Production and Health, Entomology, Agrochemicals; (ii) the Physics, Chemistry and Instrumentation Laboratory: Chemistry, Instrumentation, Dosimetry, Isotope Hydrology; (iii) the Safeguards Analytical Laboratory: Isotopic Analysis, Chemical Analysis, Clean Laboratory. 'The Mission of the IAEA Laboratories is to contribute to the implementation of the Agency's programmes in food and agriculture, human health, physical and chemical sciences, water resources, industry, environment, radiation protection and safeguards verification'. Together with a General Services and Safety Section, which provides logistics, information, industrial safety and maintenance services and runs a mechanical workshop, the three groups form the 'Seibersdorf Laboratories' and are part of the IAEA Department of Nuclear Sciences and Applications. The Laboratories contribute an important share to projects fostering peaceful applications of radiation and isotopes and radiation protection, and play a significant part in the nuclear verification mechanism. All activities are therefore planned and implemented in close co-operation with relevant divisions and departments of the IAEA. In specific sectors, the Laboratories also operate in conjunction with other organizations in the UN system, such as the Food and Agriculture Organization (FAO), the World Health Organization (WHO) and the World Meteorological Organization (WMO), and with networks of national laboratories in Member States

  18. Monthly highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory, August 1977

    International Nuclear Information System (INIS)

    Fee, G.G.

    1977-01-01

    Technical highlights are presented for the following safety-related studies: heavy section steel technology, fission product beta and gamma energy release, fission product release from LWR fuel, fission product transport tests, multirod burst tests, Nuclear Safety Information Center, PWR blowdown heat transfer-separate effects, zircaloy fuel cladding collapse studies, zirconium metal-water oxidation kinetics, aerosol release and transport from LMFBR fuel, HTGR safety analysis and research, design criteria for piping and nozzles, and noise diagnostics for safety assessment

  19. Radiation protection in cyclotron and radioisotope production laboratories of IEN - (Instituto de Engenharia Nuclear - CNEN)

    International Nuclear Information System (INIS)

    Fajardo, P.W.; Silva, J.J.G.

    1988-01-01

    The Cyclotron at Instituto de Engenharia Nuclear is used for the radioisotope production, neutron production and irradiation damages analysis, etc. The risks associated with the operation and maintenance of cyclotron and the neutron radiation of wide energy spectrum, external and internal contamination. A summary of the radioprotection program for these areas are show and the results obtained from the air and surface analysis, liquid efluents and equivalentes doses of workers of the several activities are given. (Author) [pt

  20. Determination of possible damage/degradation of the Sandia National Laboratories Personal Nuclear Accident Dosimeter (PNAD)

    International Nuclear Information System (INIS)

    Potter, Charles Augustus; Ward, Dann C.

    2008-01-01

    This report describes the results of an inspection performed on the existing stock of SNL Personal Nuclear Accident Dosimeters (PNADs). The current stock is approximately 20 years old, and has not been examined since their initial acceptance. A small random sample of PNADs were opened (a destructive process) and the contents visually examined. Sample contents were not degraded and indicate that the existing stock of SNL PNADs is acceptable for continued use

  1. Triangle Universities Nuclear Laboratory annual report-TUNL XVIII, 1 January-31 December 1979

    International Nuclear Information System (INIS)

    1979-01-01

    Activities during the year 1979 are reported in the following categories: neutron cross section experiments, neutron polarization studies, high-resolution studies, charged-particle reactions with polarized beams, radiative capture reactions, atomic physics, other experiments, work done elsewhere by TUNL personnel, applications, ion source development, accelerator development and instrumentation, computer-related development, ad nuclear theory and phenomenology. Appendixes give lists of journal publications, talks, etc. Twelve of the contributions to this annual report have been abstracted and indexed individually

  2. Monthly highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Fee, G.G.

    1976-08-01

    Brief highlights are presented for the following programs: heavy section steel technology, fission product beta and gamma energy release, LOCA release from LWR fuel, multirod burst tests, Nuclear Safety Information Center, PWR blowdown heat transfer-separate effects, zircaloy fuel cladding collapse studies, zirconium metal-water oxidation kinetics, aerosol release and transport from LMFBR fuel, HTGR safety analysis, design criteria for piping and nozzles, and dose conversion factors for inhalation of radionuclides

  3. Monthly highlights for Office of Nuclear Regulatory research programs at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Fee, G.G.

    1975-04-01

    Summaries are given of the following programs: heavy section steel technology, fission product beta and gamma energy release, LOCA release from LWR fuel, multirod burst tests, Nuclear Safety Information Center, PWR blowdown heat transfer--separate effects, Zircaloy fuel cladding collapse studies, Zr metal--water oxidation kinetics, transient vaporization of LMFBR fuel, and HTGR safety analysis and research. Technical highlights and cost/budget reports are included. (U.S.)

  4. Monthly highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory, August 1976

    International Nuclear Information System (INIS)

    Fee, G.G.

    1976-10-01

    Technical highlights are presented for the following activities: heavy section steel technology, fission product beta and gamma energy release, LOCA release from LWR fuel, Nuclear Safety Information Center, PWR blowdown heat transfer-separate effects, Zircaloy fuel cladding collapse studies, zirconium metal-water oxidation kinetics, aerosol release and transport from LMFBR fuel, HTGR safety analysis and research, design criteria for piping and nozzles, and dose conversion factors for inhalation of radionuclides

  5. University of Wisconsin, Nuclear Reactor Laboratory. Annual report, 1985-1986

    International Nuclear Information System (INIS)

    Cashwell, R.J.

    1986-01-01

    Operational activities for the reactor are described concerning nuclear engineering classes from the University of Wisconsin; reactor sharing program; utility personnel training; sample irradiations and neutron activation analysis; and changes in personnel, facility, and procedures. Results of surveillance tests are presented for operating statistics and fuel exposure; emergency shutdowns and inadvertent scrams; maintenance; radioactive waste disposal; radiation exposures; environmental surveys; and publications and presentations on work based on reactor use

  6. Monthly highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Fee, G.G.

    1976-02-01

    Brief highlights are presented for the following activities: heavy section steel technology program, fission product β and γ energy release, LOCA release from LWR fuel, multirod burst tests, Nuclear Safety Information Center, PWR blowdown heat transfer-separate effects, zircaloy fuel cladding collapse studies, zirconium metal-water oxidation kinetics, aerosol release and transport from LMFBR fuel, HTGR safety analysis and research, and design criteria for piping and nozzles

  7. Questions about the future of the nuclear energy; Les interrogations sur l'avenir de l'energie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-12-15

    The nuclear energy became a society subject much debated. This analysis discusses in three chapters the different interrogations concerning the nuclear energy: the comparison between the different energy sources to justify the preservation of the nuclear energy in France and in the world, the compatibility of the nuclear energy with the different socio-economic choices as the main condition of its development, and the role of the Government to transform the energy policy on the society choice. (A.L.B.)

  8. On-line computer system applied in a nuclear chemistry laboratory

    International Nuclear Information System (INIS)

    Banasik, Z.; Kierzek, J.; Parus, J.; Zoltowski, T.; Zalewski, J.

    1980-01-01

    A PDP-11/45 based computer system used in a radioanalytical chemical laboratory is described. It is mainly concerned with spectrometry of ionizing radiation and remote measurement of physico-chemical properties. The objectives in mind when constructing the hardware inter-connections and developing the software of the system were to minimize the work of the electronics and computer personnel and to provide maximum flexibility for the users. For the hardware interfacing, 3 categories of equipment are used: - LPS-11 Laboratory Peripheral System - CAMAC system with CA11F-P controller - interfaces from instrument manufacturers. Flexible operation has been achieved by using a 3-level programming structure: - data transfer by assembly language programs - data formatting using bit operations in FORTRAN - data evaluation by procedures written in FORTRAN. (Auth.)

  9. Standard guide for qualification of measurement methods by a laboratory within the nuclear industry

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2003-01-01

    1.1 This guide provides guidance for selecting, validating, and qualifying measurement methods when qualification is required for a specific program. The recommended practices presented in this guide provide a major part of a quality assurance program for the laboratory data (see Fig. 1). Qualification helps to assure that the data produced will meet established requirements. 1.2 The activities intended to assure the quality of analytical laboratory measurement data are diagrammed in Fig. 1. Discussion and guidance related to some of these activities appear in the following sections: Section Selection of Measurement Methods 5 Validation of Measurement Methods 6 Qualification of Measurement Methods 7 Control 8 Personnel Qualification 9 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitati...

  10. Laboratory training manual on the use of nuclear and associated techniques in pesticide research

    International Nuclear Information System (INIS)

    1991-01-01

    Most laboratories studying pesticide metabolism or other aspects of pesticides use isotope techniques. This manual is aimed at scientists who use or intended to use radioisotopes in pesticide research. It contains a theoretical introduction on the properties of radionuclides and radiation, a description of radioactivity measuring instruments, guidelines for radiation protection and general recommendations on experimental design and performance. A large part of the manual is devoted to laboratory exercises in which detailed protocols for applications of isotope techniques in pesticide research are presented. These are intended to demonstrate concepts or denote representative means of conducting particular types of experiment, and it is hoped that the information gained through the performance of the exercises will serve as a basis for modifications to suit other specialized needs. 36 figs

  11. VALIDATION OF NUCLEAR MATERIAL CONTROL AND ACCOUNTABILITY (MC and A) SYSTEM EFFECTIVENESS TOOL (MSET) AT IDAHO NATIONAL LABORATORY (INL)

    International Nuclear Information System (INIS)

    Meppen, Bruce; Haga, Roger; Moedl, Kelley; Bean, Tom; Sanders, Jeff; Thom, Mary Alice

    2008-01-01

    A Nuclear Material Control and Accountability (MC and A) Functional Model has been developed to describe MC and A systems at facilities possessing Category I or II Special Nuclear Material (SNM). Emphasis is on achieving the objectives of 144 'Fundamental Elements' in key areas ranging from categorization of nuclear material to establishment of Material Balance Areas (MBAs), controlling access, performing quality measurements of inventories and transfers, timely reporting all activities, and detecting and investigating anomalies. An MC and A System Effectiveness Tool (MSET), including probabilistic risk assessment (PRA) technology for evaluating MC and A effectiveness and relative risk, has been developed to accompany the Functional Model. The functional model and MSET were introduced at the 48th annual International Nuclear Material Management (INMM) annual meeting in July, 20071,2. A survey/questionnaire is used to accumulate comprehensive data regarding the MC and A elements at a facility. Data is converted from the questionnaire to numerical values using the DELPHI method and exercises are conducted to evaluate the overall effectiveness of an MC and A system. In 2007 a peer review was conducted and a questionnaire was completed for a hypothetical facility and exercises were conducted. In the first quarter of 2008, a questionnaire was completed at Idaho National Laboratory (INL) and MSET exercises were conducted. The experience gained from conducting the MSET exercises at INL helped evaluate the completeness and consistency of the MC and A Functional Model, descriptions of fundamental elements of the MC and A Functional Model, relationship between the MC and A Functional Model and the MC and A PRA tool and usefulness of the MSET questionnaire data collection process

  12. Research and experience report 2009. Developments in the technical and legal basis of nuclear oversight; Erfahrungs- und Forschungsbericht 2009. Entwicklungen im Bereich der Grundlagen der nuklearen Aufsicht/Rapport sur la recherche et les experiences en 2009. Developpements dans les bases techniques et legales pour la surveillance nucleaire/Research and experience report 2009. Developments in the technical and legal basis of nuclear oversight

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-04-15

    In terms of research into regulatory safety, ENSI awards and coordinates research projects designed to develop current scientific knowledge and expertise and to make the results available to the regulatory process. ENSI currently supports research in four different areas: Reactor Safety; Radiological Protection; Transport and Waste Management; and Human Influence, Organisation and Safety Culture. Research in reactor safety focuses on materials research of relevance to the monitoring of ageing mechanisms such as fatigue, corrosion, embrittlement and the development of cracks, together with research into incidents and accidents and their relevance to improvements in safety analyses. It investigates issues such as the interaction between core meltdown and water and concrete, as well as the development of methodologies and software. In addition, ENSI is a partner in a range of international database projects giving it access to information on the causes, frequency and characteristics of individual incidents. The aim of radiological protection is to protect personnel, local people and the environment in the vicinity of nuclear facilities from ionising radiation. ENSI supports research into dosimetry and radio analysis. Another area of particular importance is research designed to improve the methodologies used to monitor the release of radioactive materials into the environment. In the area of transport and waste management, ENSI investigates the suitability of geological strata for the deep storage of radioactive waste. Experiments are being conducted at the Mont Terri Rock Laboratory into the geological, hydro-geological, geochemical and rock-mechanical properties of the Opalinus clay. ENSI is supporting an experiment designed to characterise the fracture generation in the excavation damage zone of a gallery triggered by stress changes in the surrounding rock. The research is also looking at the chemical reactions occurring in a deep repository, together with the

  13. Bulletin of the Research Laboratory for Nuclear reactors (Tokyo Institute of Technology)

    International Nuclear Information System (INIS)

    Fujii, Yasuhiko

    2000-01-01

    This bulletin contains five chapters, which are Celebration of Prof. Tomiyasu's sixtieth birthday, Energy engineering, Mass transmutation engineering, System and safety engineering, and Co-operative researches. At first,, a memorial lecture of prof. Tomiyasu was expressed on a short note concerning pyrometallurgical nuclear reprocessing methods in view of recent studies under a title of 'Illusion in pyrometallurgical nuclear fuel reprocessing'. On next, at the energy engineering, 26 reports such as energy loss of 6 MeV/u iron ions in partially ionized helium plasma, nuclear fuel rods bundle thermal hydraulics analysis, coupling of space-dependent neutron kinetics model with thermal hydraulics analysis, and so on, were described. At the mass transmutation engineering, 22 reports such as a lead-bismuth cooled long life reactor with CANDLE burnup, molten salt reactor in the future equilibrium state, basic study on some equilibrium fuel cycle of PWR, and so on, were expressed. And, at the system and safety engineering, 16 reports such as study of a rotary phase shifter for power system applications, high field FBC tokamak for D-T fusion reactor, SMES using a high temperature superconductor, and so on, were found. At the co-operative researches at last chapter, four subjects on co-operative researches in T.I.T., themes of co-operative researches outside T.I.T., co-operative researches by use of MIT-RR, and themes supported by grants-in-aid for scientific research of the Ministry of Education, Science, Sports and Culture, were reported. (G.K.)

  14. Triangle Universities Nuclear Laboratory annual report: TUNL, XV. 1 January 1976 -- 31 December 1976

    Energy Technology Data Exchange (ETDEWEB)

    None

    1976-01-01

    Brief reports of research are presented under the following categories: neutron and fission physics, neutron polarization studies, high-resolution studies, gamma ray spectroscopy, charged-particle reactions with polarized beams, radiative capture reactions, atomic collision physics, heavy-ion reactions, applications, ion source development, accelerator development and instrumentation, computer-related developments, and nuclear theory and phenomenology. Although some data are furnished, many of these partial-page summaries are simply abstracts of published papers. Lists of publications, talks, personnel, etc., are included. (RWR)

  15. Molecular Structure Laboratory. Fourier Transform Nuclear Magnetic Resonance (FTNMR) Spectrometer and Ancillary Instrumentation at SUNY Geneseo

    Energy Technology Data Exchange (ETDEWEB)

    Geiger, David K [State Univ. of New York (SUNY), Geneseo, NY (United States)

    2015-12-31

    An Agilent 400-MR nuclear magnetic resonance (NMR) spectrometer and ancillary equipment were purchased, which are being used for molecular structure elucidation.  The instrumentation is housed in a pre-existing facility designed specifically for its use. This instrument package is being used to expand the research and educational efforts of the faculty and students at SUNY-Geneseo and is made available to neighboring educational institutions and business concerns.  Funds were also used for training of College personnel, maintenance of the instrumentation, and installation of the equipment.

  16. Organisation arrangements of nuclear medicine services. Planning of installations. Laboratory monitoring

    International Nuclear Information System (INIS)

    Chanteur, J.

    1977-01-01

    Apart from safety and quality requirements, the organisation of nuclear medicine services, or more generally of installations where nonsealed radioactive sources are used, is governed by profitability and efficiency criteria. In view of the high price of products and apparatus, the equipment must be based on a rationalisation of options guiding the organisation arrangements as a whole. The following items are dealt with in succession: various categories of installations; general planning of equipment; equipment regulations based on a major requirement, the confinement of contamination sources; practical observations concerning administrative and technical questions

  17. Triangle Universities Nuclear Laboratory: Annual report, TUNL XXVI, 1 September 1986-31 August 1987

    International Nuclear Information System (INIS)

    1987-01-01

    At TUNL particular emphasis is placed on reactions induced by polarized protons, deuterons, and neutrons. Research programs include: studies of spin-spin forces with a polarized target and tests of time reversal invariance, high resolution proton scattering on the tandem, examination of the nucleon-nucleus interactions in light nuclei, charged particle induced reactions with polarized projectiles, radiative capture reactions with polarized beams, and weak interaction studies. We also continue a major commitment to the study of the statistical properties of nuclear levels revealed by elastic and inelastic scattering experiments using ultra high energy-resolution proton beams

  18. Triangle Universities Nuclear Laboratory annual report: TUNL, XV. 1 January 1976--31 December 1976

    International Nuclear Information System (INIS)

    1976-01-01

    Brief reports of research are presented under the following categories: neutron and fission physics, neutron polarization studies, high-resolution studies, gamma ray spectroscopy, charged-particle reactions with polarized beams, radiative capture reactions, atomic collision physics, heavy-ion reactions, applications, ion source development, accelerator development and instrumentation, computer-related developments, and nuclear theory and phenomenology. Although some data are furnished, many of these partial-page summaries are simply abstracts of published papers. Lists of publications, talks, personnel, etc., are included

  19. Los Alamos National Laboratory case studies on decommissioning of research reactors and a small nuclear facility

    International Nuclear Information System (INIS)

    Salazar, M.D.

    1998-01-01

    Approximately 200 contaminated surplus structures require decommissioning at Los Alamos National Laboratory. During the last 10 years, 50 of these structures have undergone decommissioning. These facilities vary from experimental research reactors to process/research facilities contaminated with plutonium-enriched uranium, tritium, and high explosives. Three case studies are presented: (1) a filter building contaminated with transuranic radionuclides; (2) a historical water boiler that operated with a uranyl-nitrate solution; and (3) the ultra-high-temperature reactor experiment, which used enriched uranium as fuel

  20. Research and learning opportunities in a reactor-based nuclear analytical laboratory

    International Nuclear Information System (INIS)

    Robinson, L.

    1994-01-01

    Although considered by many to be a mature science, neutron activation analysis (NAA) continues to be a valuable tool in trace-element research applications. Examples of the applicability of NAA can be found in a variety of areas including archaeology, environmental science, epidemiology, forensic science, and material science to name a few. Each stage of NAA provides opportunities to share numerous practical and fundamental scientific principles with high school teachers and students. This paper will present an overview of these opportunities and give a specific example from collaboration with a high school teacher whose research involved the automation of a gamma-ray spectroscopy counting system using a laboratory robot

  1. An overview of the waste characterization program at Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Csullog, G.W.; Hardy, D.G.

    1990-05-01

    A comprehensive Waste Characterization Program (WCP) is in place at Chalk River Laboratories to support disposal projects. The WCP is responsible for: 1) specifying the manifests for waste shipments; 2) developing and maintaining central databases for waste inventories and analytical data; and 3) developing the technologies and procedures to characterize the radiological and the physical/chemical properties of wastes. WCP work is being performed under the umbrella of a newly developed waste management Quality Assurance (QA) program. This paper gives an overview of the WCP with an emphasis on the requirements for determining radionuclide inventories in wastes, for implementing record-keeping systems, and for maintaining a QA program for disposal operations

  2. Nuclear criticality safety aspects of emergency response at the Los Alamos National Laboratory

    International Nuclear Information System (INIS)

    Baker, J.S.

    2003-01-01

    Emergency response at Los Alamos National Laboratory (LANL) is handled through a graded approach depending on the specific emergency situation . LANL maintains a comprehensive capability to respond to events ranging from minor facility events (alerts) through major community events (general emergencies), including criticality accidents . Criticality safety and emergency response apply to all activities involving significant quantities of fissile material at LANL, primarily at Technical Area 18 (TA-18, the Los Alamos Critical Experiments Facility) and Technical Area 55 (TA-55, the Plutonium Facility). This discussion focuses on response to a criticality accident at TA-55; the approach at TA-18 is comparable .

  3. Los Alamos National Laboratory case studies on decommissioning of research reactors and a small nuclear facility

    Energy Technology Data Exchange (ETDEWEB)

    Salazar, M.D.

    1998-12-01

    Approximately 200 contaminated surplus structures require decommissioning at Los Alamos National Laboratory. During the last 10 years, 50 of these structures have undergone decommissioning. These facilities vary from experimental research reactors to process/research facilities contaminated with plutonium-enriched uranium, tritium, and high explosives. Three case studies are presented: (1) a filter building contaminated with transuranic radionuclides; (2) a historical water boiler that operated with a uranyl-nitrate solution; and (3) the ultra-high-temperature reactor experiment, which used enriched uranium as fuel.

  4. Bulletin of the Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

    International Nuclear Information System (INIS)

    1992-01-01

    In this bulletin, 48 reports of the researches in the Energy Engineering Division on two-phase flow characteristics, thermo-hydraulic behavior of fuel channel, FBR cores, combustion systems, boiling heat transfer, MHD generators, thermoluminescence emission, nuclear magnetic resonance, photoreduction of uranium, kinetics and mechanism of reaction, chemical heat pumps and others, 39 reports of the researches in the Mass Transmutation Engineering Division on heavy ion linac system, tritiated water diffusion into concrete, hydrogen plasma-driven permeation, neutron diffusion, long life small safe reactors, use of U-233, mercury coolant, low level neutron detectors, tritium enrichment, free electron laser, compact storage and acceleration rings and others, and 20 reports of the researches in the System and Safety Engineering Division on self-consistent nuclear energy supply system, behavior of plasma-facing components, fragmentation of liquid metal, flywheel motor generator, modeling of tokamak plasma, irradiation effect on SiC ceramics, safety analysis of fusion energy system and others are collected. (K.I.)

  5. Influence of differences in the proton and neutron distributions on nuclear fusion and fission; Infuence de la difference entre les distributions de protons et de neutrons dans le noyau sur les processus de fusion et de fission

    Energy Technology Data Exchange (ETDEWEB)

    Dobrowolski, A

    2006-04-15

    This thesis work is centred on some essential ingredients of a theoretical description of the reaction dynamics of the nuclear fusion and fission process, such as the interaction potential between projectile and target nuclei for fusion and the deformation energy landscape in a multidimensional space for the fission process. We have in particular evaluated the importance of the difference between the neutron and proton density distributions on these 2 processes. The fusion potential between the two interacting nuclei is obtained through the nucleon densities, determined in a self-consistent way through semiclassical density variational calculations for a given effective nucleon-nucleon effective interaction of the Skyrme type. These fusion barriers can then be used in a Langevin formalism to evaluation fusion cross sections. For the fission process it turns out to be essential to allow for the large variety of shapes which appear between the nuclear ground state and the the scission configuration. We show that a shape parametrisation taking into account elongation, as well as possible neck formation, left-right asymmetry and non-axiality allows a precise description of this phenomena in the framework of the macroscopic-microscopic approach. We are thus able to enrich the expression of the liquid-drop type energy through a term which describes the variation of the nuclear energy due to a deformation difference between the proton and neutron distribution. The resulting reduction of the fission barriers is only of the order of one MeV but this can easily cause a change in the fission cross-section by an order of magnitude and thus plays a capital role for the stability of super-heavy of exotic nuclei. (author)

  6. Role of the statistician in the decommissioning of the New Brunswick Laboratory and other nuclear facilities

    International Nuclear Information System (INIS)

    Gilbert, R.O.

    1980-12-01

    This report examines what the statistician can contribute to decommissioning operations, with particular emphasis on the New Brunswick Laboratory (NBL) currently scheduled for decommissioning beginning in FY81. In the opinion of the author, a professional statistician should be a full member of the planning team directing decommissioning operations at the New Brunswick Laboratory. This opinion is based in part on the familiarity with the valuable contributions made by statisticians toward the cleanup of transuranics in soil on the Enewetak Atoll. More generally, however, the professional statistician can help plan the decommissioning effort to help ensure that representative data are obtained, analyzed and, interpreted in appropriate ways so that RA decisions can be made with the required confidence. The statistician's contributions at the NBL could include providing guidance on the number and location of samples and in-situ measurements, analyzing and interpreting these data, designing a data management and documentation system, interfacing with the certification contractor's statistician, and assisting in writing documentation and final reports. In all cases, the statistician should work closely with the professional health physicist and others on the planning team in a closely coordinated effort of planning and data analysis

  7. Excision Les jeunes changent l'Afrique par les TIC

    International Development Research Centre (IDRC) Digital Library (Canada)

    Comité Inter-Africain sur les Pratiques Traditionnelles ayant effet sur la santé des ... Planche 7 - Perception genrée de la citoyenneté : les dire des femmes. 90 ...... dans le monde avec les migrations internationales, l'excision ne semble pas être ...... En utilisant les TIC pour exprimer leurs attentes et leurs besoins, les jeunes, ...

  8. Overview of experimental results obtained under the Prestressed Concrete Nuclear Pressure Vessel Development Program at the Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Naus, D.J.

    1978-01-01

    Under the Prestressed Concrete Nuclear Pressure Vessel Development Program at the Oak Ridge National Laboratory, various aspects of Prestressed Concrete Pressure Vessels (PCPVs) are investigated and evaluated with respect to reliability, structural performance, constructability, and economy. Based upon identified needs, analytical and experimental investigations are conducted. Areas of interest include finite-element analysis development, materials and structural behavior tests, instrumentation evaluation and development, and structural model tests. Studies have been recently completed in the following areas: concrete embedment instrumentation systems for PCPVs, grouted-nongrouted prestressing systems, acoustic emission as a technique for structural integrity monitoring, and model tests of steam-generator cavity closure plugs for a Gas-Cooled Fast Reactor (GCFR). An overview of results is presented

  9. Measurement of organ doses from external γ-radiation in the environment of a nuclear research laboratory

    International Nuclear Information System (INIS)

    Jones, A.R.

    1978-06-01

    Thermoluminescent dosimeters (TLD) are used to monitor the γ-ray exposure in the environment at the Chalk River Nuclear Laboratories. To relate the exposure to the doses absorbed by humans in this environment a set of measurements has been made of the doses at various sites within a phantom, placed out-of-doors, while measuring the exposure simultaneously. The measurements have been made with sensitized LiF-TLD's for exposures lasting several months in order to obtain adequate accuracy at the low exposure rates (5 - 50 μR/h) encountered. The exposure was measured with TLD's placed one metre from the ground and on four sides of the phantom and two metres away. Measurements made of the internal radioactivity of the phantom showed that this contributed less than 0.2 μR/h to the TLD's lodged within the phantom

  10. Report of the research results with University of Tokyo, Nuclear Engineering Research Laboratory's facilities in fiscal 1993

    International Nuclear Information System (INIS)

    1994-01-01

    This publication summarizes the results of the joint utilization of the research 'Yayoi' and the electron beam accelerator in the Nuclear Engineering Research Laboratory, University of Tokyo, in the fiscal year 1993. In this report, the gists of 15 researches which were carried out on pile of the Yayoi, 9 researches off pile of the Yayoi and 14 researches by using the linear accelerator are collected. In addition, the 13 reports of Yayoi Study Meeting held in fiscal year 1993 are collected. Moreover, the list of the events carried out in the facility in fiscal year 1993, the registers of names of various committees, and the register of the names of persons who were in charge of joint utilization experiments in fiscal year 1993 are attached. (K.I.)

  11. Report on application results of the nuclear reactor in Atomic Energy Research Laboratory, Rikkyo University. April 1994 - March 1995

    International Nuclear Information System (INIS)

    1995-01-01

    This report is on researching action state, application state, management state, and others of 1994 fiscal year at the Atomic Energy Research Laboratory, Rikkyo University. The experimental reactor has been used for the studies such as application of neutron radioactivity analysis to multi fields, application of fission and alpha track method to age determination and metallurgy, hot atom chemistry, neutron radiation effect on semiconductors and others, nuclear data measurement, organism, materials and products using neutron radiography, and development and application to inspection of radiation detectors such as neutron detector. This report was a report shown as a shape of research results of actions of the researchers. And, another report of colaborate research results using the Rikkyo University reactor was also published from the Atomic Energy Center, the University of Tokyo begun since April, 1974. (G.K.)

  12. The nuclear power plant maintenance personnel reliability prediction (NPP/MPRP) effort at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Knee, H.E.; Haas, P.M.; Siegel, A.I.

    1982-01-01

    Human errors committed during maintenance activities are potentially a major contribution to the overall risk associated with the operation of a nuclear power plant (NPP). An NRC-sponsored program at Oak Ridge National Laboratory is attempting to develop a quantitative predictive technique to evaluate the contribution of maintenance errors to the overall NPP risk. The current work includes a survey of the requirements of potential users to ascertain the need for and content of the proposed quantitative model, plus an initial job/task analysis to determine the scope and applicability of various maintenance tasks. In addition, existing human reliability prediction models are being reviewed and assessed with respect to their applicability to NPP maintenance tasks. This paper discusses the status of the program and summarizes the results to date

  13. Information note about the protection of nuclear facilities against aircraft crashes; Note d'information sur la protection des installations nucleaires contre les chutes d'avions

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The protection of nuclear facilities against external risks (earthquakes, floods, fires etc..) is an aspect of safety taken into consideration by the French authority of nuclear safety (ASN). Concerning the aircraft crashes, the fundamental safety rules make three categories of aircraft: the small civil aircraft (weight < 5.7 t), the military aircraft, and the commercial aircraft (w > 5.7 t). Nuclear facilities are designed to resist against crashes of aircraft from the first category only, because the probability of the accidental crash of a big aircraft are extremely low. This document comprises an information note about the protection of nuclear facilities against aircraft crashes, a dossier about the safety of nuclear facilities with respect to external risks in general (natural disasters and aircraft crashes), and an article about the protection of nuclear power plants against aircraft crashes (design, safety measures, regulation, surveillance, experience feedback). (J.S.)

  14. The today situation and the nuclear sector perspectives in Usa; La situation actuelle et les perspectives du secteur nucleaire aux Etats-Unis

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    In this analysis the author details and discusses the nuclear energy situation in the Usa: the park and the electric power production, the nuclear safety and the radiation protection, the licenses prolongation, the power increase, the regulation relative to the construction of new reactors, the combined construction permit and operating license, the uncertainties on the Yucca Mountain storage site and the Global Nuclear Energy Partnership initiative, the 2006 perspectives and the IV generation reactors. (A.L.B.)

  15. Kingsbury Laboratories

    International Nuclear Information System (INIS)

    Hughes, S.B.

    1986-01-01

    The paper concerns the work of the Kingsbury Laboratories of Fairey Engineering Company, for the nuclear industry. The services provided include: monitoring of nuclear graphite machining, specialist welding, non-destructive testing, and metallurgy testing; and all are briefly described. (U.K.)

  16. Annual report of Nuclear Engineering Research Laboratory, University of Tokyo in fiscal 1993

    International Nuclear Information System (INIS)

    1994-08-01

    In this annual report, the activities of research and education, the state of operation of research facilities and others in fiscal year 1993 are summarized. Four main research facilities are the fast neutron source reactor 'Yayoi', the electron linear accelerator, the basic experiment facility for nuclear fusion reactor blanket design and the heavy irradiation research facility. The reactor and the accelerator are for the joint utilization by all universities in Japan, the blanket is used by the Faculty of Engineering, and the HIT is for the joint utilization in University of Tokyo. In fiscal year 1993, the installation of the fast neutron science research facility was approved. In this annual report, the management and operation of the above research facilities are described, and the research activities, the theses for doctorate and graduation theses of teachers, are summarized. (K.I.)

  17. The bad debt of nuclear responsibility; L'heritage empoisonne du nucleaire - De la conduite a suivre pour reduire les risques

    Energy Technology Data Exchange (ETDEWEB)

    Haverkamp, J. [Greenpeace Europe (France)

    2010-11-15

    Nuclear regulation plays an important role in keeping the visible and invisible threats of radioactivity at bay. This article argues that the largest gains in nuclear safety can be made if nuclear activities with economically, socially and environmentally viable alternatives (such as nuclear energy and nuclear weapons) are phased out - similarly to what has been done for toxic substances. Unless this takes place, the legacy of radioactive waste for future generations will only increase. In this respect, the article highlights the importance of accountability, independence and transparency of nuclear regulators to contain the risks stemming from radioactivity. In the interest of safety, other uses of nuclear technology should, as a rule, apply the best available technology and the best regulatory practice. As is made clear in the article, the EURATOM Nuclear Safety Directive, adopted in 2009, hardly addresses any of these issues. The article ends on a set of demands from Greenpeace to meet the challenges posed by nuclear safety, concluding that there is still a long way to go before the sector can be considered even reasonably safe. (author)

  18. From laboratory experiments to a geological disposal vault: calculation of used nuclear fuel dissolution rates

    International Nuclear Information System (INIS)

    Sunder, S.; Shoesmith, D.W.; Kolar, M.; Leneveu, D.M.

    1998-01-01

    Calculation of used nuclear fuel dissolution rates in a geological disposal vault requires a knowledge of the redox conditions in the vault. For redox conditions less oxidizing than those causing UO 2 oxidation to the U 3 O 7 , stage, a thermodynamically-based model is appropriate. For more oxidizing redox conditions a kinetic or an electrochemical model is needed to calculate these rates. The redox conditions in a disposal vault will be affected by the radiolysis of groundwater by the ionizing radiation associated with the fuel. Therefore, we have calculated the alpha-, beta- and gamma-dose rates in water in contact with the reference used fuel in the Canadian Nuclear Fuel Waste Management Program (CNFWMP) as a function of cooling time. Also, we have determined dissolution rates of UO 2 fuel as a function of alpha and gamma dose rates from our electrochemical measurements. These room-temperature rates are used to calculate the dissolution rates of used fuel at 100 o C, the highest temperature expected in a container in the CNFWMP, as a function of time since emplacement. It is shown that beta radiolysis of water will be the main cause of oxidation of used CANDU fuel in a failed container. The use of a kinetic or an electrochemical corrosion model, to calculate fuel dissolution rates, is required for a period of ∼1000 a following emplacement of copper containers in the geologic disposal vault envisaged in the CNFWMP. Beyond this time period a thermodynamically-based model adequately predicts the fuel dissolution rates. The results presented in this paper can be adopted to calculate used fuel dissolution rates for other used UO 2 fuels in other waste management programs. (author)

  19. Laboratory training manual on the use of nuclear techniques in insect research and control. 3. ed.

    International Nuclear Information System (INIS)

    1992-01-01

    Isotopes are commonly used in agricultural research in developed countries, but because of a lack of both training and equipment isotopic techniques are not frequently used in developing countries. This manual has been prepared with the aim of helping entomologists and others responsible for the control of insects in developing countries become familiar with the potential uses of isotopes and radiation in solving some of their research and insect control problems. After chapters dealing with radiation safety, the general properties of radiation and isotopes (especially those used by entomologists), and radiation detection and assay of radioactivity, two further chapters discuss applications to entomological problems and the sterile insect technique. Numerous case studies are described, and the final chapter also includes a description of eight laboratory exercises to investigate the effects of gamma irradiation and chemosterilants on insects. Refs, figs and tabs

  20. Chemical speciation of radionuclides in contaminant plumes at the Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Champ, D.R.

    1986-01-01

    Experimental disposals of liquid and glassified wastes directly into the sands of the Perch Lake basin, Ontario, Canada, have resulted in the formation of well-defined subsurface contaminant plumes in the groundwater flow system. Using large volume water sampling techniques we have detected low concentrations of several long-lived radionuclides including isotopes of Pu, Am, Cm, Tc, I, Sr and Cs. The particulate and ionic speciation results from these studies support the conclusions of previous laboratory column studies that transport of radionuclides, particularly Cs and Pu, on particulates and/or colloids could be a significant mobilization mechanism in groundwater flow systems. We also propose, based on a comparison of the plume data with previous detailed studies on 60 Co that complexation reactions with natural as well as synthetic organic ligands can yield mobile anionic species of the actinides and lanthanides. Further detailed studies will be required to support this postulate. (author)

  1. Windscale nuclear power development laboratories power ramp experience in the Winfrith SGHWR (UK)

    International Nuclear Information System (INIS)

    Garlick, A.; Sumerling, R.; Stuttard, A.; Bond, G.G.; Howl, D.A.; Fox, W.N.; Cordall, D.; Cornell, R.M.

    SGHWR fuel has sufficient power ramping capability to permit considerable latitude in fuel management schemes. However, beyond some limiting ramping conditions, there is risk of fuel defecting. Controlled ramp experiments were therefore carried out in the reactor in order to determine the defect mechanism and define the fuel operating limitations. Cladding cracks produced during these power ramps are considered to have been a consequence of fission product stress-corrosion attack. A critical stress level for cracking, based on laboratory stress corrosion tests, have been used successfully in conjunction with computer codes to calculate cladding stresses and strains in fuel rods. Initial analysis of the conditions under which a fuel element defected at 11.6 MWd/kgU suggests that the threshold stress for failure may be decreased compared with elements at lower burn-up (5-6 MWd/kgU)

  2. X-ray measurement of residual stress in metals at Chalk River Nuclear Laboratories

    International Nuclear Information System (INIS)

    Winegar, J.E.

    1980-06-01

    X-ray diffraction is used at CRNL to measure residual stress in metals. This report summarizes the basic principles of stress measurement, and reviews factors affecting accuracy of measurement. The technique and equipment described were developed at CRNL to give reliable measurements. Accuracy of measurement is achieved by using fixed-count step-scanning and by computer analysis of intensity data using a cubic spline curve smoothing routine. Specific reference is made to the measurement of residual stress in Inconel-600 and Incoloy-800 boiler tubing. Because it measures stress in thin surface layers, the X-ray method can also be used to measure the depth profile of stresses. As there are no standardized procedures for measuring residual stress, this report will be useful both to those unfamiliar with the measurement of residual stress and to those already making such measurements in other laboratories. (auth)

  3. Laboratory for the Dosimetric Equipment Calibration at the Institute of Nuclear Physics in Cracow

    International Nuclear Information System (INIS)

    Bilski, P.; Budzanowski, M.; Horwacik, T.; Marczewska, B.; Nowak, T.; Olko, P.; Ryba, E.; Zbroja, K.

    2000-12-01

    A new calibration laboratory has been developed at the INP, Cracow, Poland. The laboratory is located in a hall of dimension 9 m (length) x 4 m (wide) x 4.5 m (height). For calibration purposes the Cs-137 source of activity 185 MBq / 5 Ci / is applied, placed in the 16 cm thick lead capsule. The beam is collimated using a collimator with a constant opening of 20 o . The source is placed 2 m above the ground to avoid albedo scattering. This source covers a dose rate range from 17 mGy/h to 290 μGy/h. For low-dose calibration 0.05 Ci source is applied. The positioning of the source and opening of the collimator is pneumatically controlled. The dosimeters to be calibrated are placed onto a vehicle with DC motor positioned by PC computer. The vehicle is remotely positioned with the precision of one millimetre at the distance from the source between 1 and 7 meters. The vehicle positioning is controlled electronically and additionally checked via TV-camera. Exact dosimeter positioning is performed with a medical cross-laser and with a telescope device. The construction of the vehicle allows for performing of angular irradiations. On the axis of the vehicle 320 keV Phillips X-ray tube is installed which may be used as an irradiation source. UNIDOS dosimeter with PTW ionisation chambers is used for determination of the dose rate. This calibration stand is designed for calibration of personal dosimeters, calibration of active devices for radiation protections and for research on the newly developed thermoluminescent materials. (author)

  4. Les outils du CERN

    CERN Multimedia

    1999-01-01

    C'est le plus grand centre mondial de recherche en physique des particules. Les outils du Laboratoire, accélérateurs et détecteurs de particules, figurent parmi les instruments scientifiques les plus complexes au monde. Des prix Nobels ont d'ailleurs été attribués aux physiciens du CERN pour leurs développements.

  5. Report of the research results with University of Tokyo, Nuclear Engineering Research Laboratory's Facilities in fiscal 1983

    International Nuclear Information System (INIS)

    1984-01-01

    Much achievement was obtained also in fiscal 1983 by the common utilization of the nuclear reactor ''Yayoi'' and the linear accelerator in the Nuclear Engineering Research Laboratory, University of Tokyo. These results were summarized, and this report is published. In the utilization of the reactor ''Yayoi'', the period of operation and the maximum output were limited very much, because long cooling period is necessary to prepare for the repair of fuel cladding in the next year. Also foreign research students commonly utilized the reactor ''Yayoi''. The common utilization of the linear accelerator was begun six years ago, and now it is carried out widely and smoothly. The total number of those who commonly utilized the facilities reached 3,179. The summaries of the results of 5 on-pile researches, 17 off-pile researches, and 16 researches using the linear accelerator are collected. The committee meetings and study meetings held in fiscal 1983 are listed. The names of the members of various committees and the names of those in charge of various experiments are given. (Kako, I.)

  6. University of Colorado, Nuclear Physics Laboratory technical progress report, November 1, 1978-October 31, 1979. Report NPL-845

    International Nuclear Information System (INIS)

    1979-01-01

    This report summarizes work carried out at the Nuclear Physics Laboratory of the University of Colorado from November 1, 1978 to October 31, 1979, under contract EY-76-C-02-0535.A003 between the University of Colorado and the United States Department of Energy. Experimental studies of light ion-induced reactions were performed with the AVF cyclotron, which continues each year to produce beams of yet higher quality. Charged-particle studies continued to emphasize use of the high-resolution spectrometer system, but some return to broad-range spectroscopic studies using solid state detectors also occurred. Neutron time-of-flight experiments used 9-meter and 30-meter flight paths. Neutron-gamma ray coincidence studies developed into a new and promising field. The new PDP 11/34 data acquisition system was of great value in allowing such multiparameter experiments. Smaller programs in nuclear astrophysics, plasma diagnostic development, and medical physics were also undertaken. Research activities based at other accelerators grew. Studies of future directions for light-ion accelerators, including work on intense pulsed ion sources, orbit dynamics, and storage rings, were greatly enlarged. 19 of the articles in this report were abstracted and indexed individually. Lists of publications and personnel conclude this report

  7. Uranium determination in natural U O2 samples for the laboratory intercomparison program of Agencia Brasileiro-Argentina de Contabilidade e Controle de Materiais Nucleares (ABACC)

    International Nuclear Information System (INIS)

    Avelar, Marta M.; Palmieri, Helena E.L.; Reis Fagundes, Oliene dos

    1997-01-01

    The modified Davies and Gray method for uranium titration to analyse nuclear materials is the procedure used by the CDTN's chemical laboratory. Its analytical performance was evaluated through the participation in the intercomparison program with the Brazilian - Argentine Agency for Accountability and Control of Nuclear Materials (ABACC). One sample of natural uranium dioxide was analysed. The precision and accuracy of the measurements are reported and discussed in this paper. (author). 7 refs., 1 fig., 2 tabs

  8. Laboratory and Field Testing of Commercially Available Detectors for the Identification of Chemicals of Interest in the Nuclear Fuel Cycle for the Detection of Undeclared Activities

    Energy Technology Data Exchange (ETDEWEB)

    Carla Miller; Mary Adamic; Stacey Barker; Barry Siskind; Joe Brady; Warren Stern; Heidi Smartt; Mike McDaniel; Mike Stern; Rollin Lakis

    2014-07-01

    Traditionally, IAEA inspectors have focused on the detection of nuclear indicators as part of infield inspection activities. The ability to rapidly detect and identify chemical as well as nuclear signatures can increase the ability of IAEA inspectors to detect undeclared activities at a site. Identification of chemical indicators have been limited to use in the analysis of environmental samples. Although IAEA analytical laboratories are highly effective, environmental sample processing does not allow for immediate or real-time results to an IAEA inspector at a facility. During a complementary access inspection, under the Additional Protocol, the use of fieldable technologies that can quickly provide accurate information on chemicals that may be indicative of undeclared activities can increase the ability of IAEA to effectively and efficiently complete their mission. The Complementary Access Working Group (CAWG) is a multi-laboratory team with members from Brookhaven National Laboratory, Idaho National Laboratory, Los Alamos National Laboratory, and Sandia National Laboratory. The team identified chemicals at each stage of the nuclear fuel cycle that may provide IAEA inspectors with indications that proliferation activities may be occurring. The group eliminated all indicators related to equipment, technology and training, developing a list of by-products/effluents, non-nuclear materials, nuclear materials, and other observables. These proliferation indicators were prioritized based on detectability from a conduct of operations (CONOPS) perspective of a CA inspection (for example, whether an inspector actually can access the S&O or whether it is in process with no physical access), and the IAEA’s interest in the detection technology in conjunction with radiation detectors. The list was consolidated to general categories (nuclear materials from a chemical detection technique, inorganic chemicals, organic chemicals, halogens, and miscellaneous materials). The team

  9. Les Malalties dels cereals

    OpenAIRE

    Puiggrós i Jové, Josep Maria

    1989-01-01

    En aquest treball es fa una descripció de les principals malalties dels cereals que han estat trobades a Catalunya. Agrupant-les segons ataquin la fulla i espiga: oïdi, rovells, septòries, Rhynchosporium, Helminthosporium, i virus; al coll i tija: Cercosporella, Ophiobolus, Rhizoctbnia i Fusarium o bé les que vénen de la llavor: carbons, càries i Helminthospbrium. A part de la descripció, hom fa esment de les observacions efectuades els darrers anys en els diferents indrets de...

  10. Modernization of the Radioisotopes Production Laboratory of the La Reina Nuclear Center in Chile: Incorporating advanced concepts of safety and good manufacturing practices

    International Nuclear Information System (INIS)

    Lagos Espinoza, Silvia

    2014-01-01

    A radioisotopes and radiopharmaceuticals production laboratory was established in Chile in the 1960s for research activities. From 1967 until January 2012, it was dedicated to the manufacturing of radioisotopes and radiopharmaceuticals for medical diagnosis and treatment purposes. In 2012, modernization of the facility’s design and technology began as part of the IAEA technical cooperation project, Modernizing the Radioisotopes Production Laboratory of La Reina Nuclear Centre by Incorporating Advanced Concepts of Safety and Good Manufacturing Practices, (CHI4022)

  11. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs, Draft Environmental Impact Statement

    International Nuclear Information System (INIS)

    1994-06-01

    Volume 1 to the Department of Energy's Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Management Programs Environmental Impact Statement evaluates a range of alternatives for managing naval spent nuclear fuel expected to be removed from US Navy nuclear-powered vessels and prototype reactors through the year 2035. The Environmental Impact Statement (EIS) considers a range of alternatives for examining and storing naval spent nuclear fuel, including alternatives that terminate examination and involve storage close to the refueling or defueling site. The EIS covers the potential environmental impacts of each alternative, as well as cost impacts and impacts to the Naval Nuclear Propulsion Program mission. This Appendix covers aspects of the alternatives that involve managing naval spent nuclear fuel at four naval shipyards and the Naval Nuclear Propulsion Program Kesselring Site in West Milton, New York. This Appendix also covers the impacts of alternatives that involve examining naval spent nuclear fuel at the Expended Core Facility in Idaho and the potential impacts of constructing and operating an inspection facility at any of the Department of Energy (DOE) facilities considered in the EIS. This Appendix also considers the impacts of the alternative involving limited spent nuclear fuel examinations at Puget Sound Naval Shipyard. This Appendix does not address the impacts associated with storing naval spent nuclear fuel after it has been inspected and transferred to DOE facilities. These impacts are addressed in separate appendices for each DOE site

  12. Nuclear systems of the future. Stakes, R and D strategy, and international cooperation; Les systemes nucleaires du futur. Enjeux, strategie de recherche et developpement, et cooperation internationale

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    As demonstrated by prospective studies, nuclear energy will represent a decisive contribution in the future energy mix. The long-term strategy of development of nuclear energy requires to foresee a new generation of nuclear systems, named generation 4. The goal of these new systems is to optimize the use of nuclear fuels, to minimize the generation of wastes and to enlarge the field of applications of nuclear energy to other applications like: hydrogen and synthetic fuels generation, heat generation for the industry etc. This document presents the French R and D strategy on nuclear systems of 4. generation that has been approved by the public authorities. This strategy follows three axes: a priority research on fast neutron systems with fuel recycle (sodium fast reactors (SFR) and gas fast reactors (GFR)), a research on key-technologies for the supply of very high temperature heat (very high temperature reactor (VHTR), fast and thermal neutron reactors, and water decomposition processes), and a continuation of researches on PWR reactors improvement. An integral recycling of all actinides in fast neutron reactors requires the development of new fuel reprocessing and fuel re-fabrication processes. A reference scenario for the progressive renewal of French nuclear facilities foresees the simultaneous development of fast neutron systems and the start-up of a new spent fuel reprocessing plant. France in involved in the development of the SFR, GFR and VHTR systems thanks to its participation to the Generation 4 international forum and to bilateral cooperation with other big nuclear partners like Russia and China. One of the main stakes of the French nuclear industry is to be able to invest in the R and D of future nuclear systems in order to valorize the experience gained so far in sodium FBR systems and in fuel cycle processes. (J.S.)

  13. Advancing the Theory of Nuclear Reactions with Rare Isotopes: From the Laboratory to the Cosmos

    Energy Technology Data Exchange (ETDEWEB)

    Elster, Charlotte [Ohio Univ., Athens, OH (United States)

    2015-06-01

    The mission of the TORUS Topical Collaboration is to develop new methods that will advance nuclear reaction theory for unstable isotopes by using three-body techniques to improve direct-reaction calculations, and, by using a new partial-fusion theory, to integrate descriptions of direct and compound-nucleus reactions. Ohio University concentrates its efforts on the first part of the mission. Since direct measurements are often not feasible, indirect methods, e.g. (d,p) reactions, should be used. Those (d,p) reactions may be viewed as three-body reactions and described with Faddeev techniques. Faddeev equations in momentum space have a long tradition of utilizing separable interactions in order to arrive at sets of coupled integral equations in one variable. While there exist several separable representations for the nucleon-nucleon interaction, the optical potential between a neutron (proton) and a nucleus is not readily available in separable form. For this reason we first embarked in introducing a separable representation for complex phenomenological optical potentials of Woods-Saxon type.

  14. Advancing the Theory of Nuclear Reactions with Rare Isotopes. From the Laboratory to the Cosmos

    Energy Technology Data Exchange (ETDEWEB)

    Nunes, Filomena [Michigan State Univ., East Lansing, MI (United States)

    2015-06-01

    The mission of the Topical Collaboration on the Theory of Reactions for Unstable iSotopes (TORUS) was to develop new methods to advance nuclear reaction theory for unstable isotopes—particularly the (d,p) reaction in which a deuteron, composed of a proton and a neutron, transfers its neutron to an unstable nucleus. After benchmarking the state-of-the-art theories, the TORUS collaboration found that there were no exact methods to study (d,p) reactions involving heavy targets; the difficulty arising from the long-range nature of the well known, yet subtle, Coulomb force. To overcome this challenge, the TORUS collaboration developed a new theory where the complexity of treating the long-range Coulomb interaction is shifted to the calculation of so-called form-factors. An efficient implementation for the computation of these form factors was a major achievement of the TORUS collaboration. All the new machinery developed are essential ingredients to analyse (d,p) reactions involving heavy nuclei relevant for astrophysics, energy production, and stockpile stewardship.

  15. Nuclear engineering laboratory self regulated power oscillation experiments at the Health Physics Research Reactor

    International Nuclear Information System (INIS)

    Miller, L.F.; Mihalczo, J.T.; Bailiff, E.G.; Woody, N.D.; Gardner, G.D.

    1983-01-01

    Self regulated power oscillation experiments with a variety of initial conditions have been performed with the ORNL Health Physics Research Reactor (HPRR) by undergraduate nuclear engineering students from The University of Tennessee for several years. These experiments demonstrate the coupling between reactor kinetics and heat transfer and show how the temperature coefficient of reactivity affects reactor behavior. A model that consists of several coupled first order nonlinear differential equations is used to calculate the temperature of the core center and surface and power as a function of time which are compared with the experimental data; also, the model is also used to study the effects of various model parameters and initial conditions on the amplitude, frequency and damping of the power and temperature oscillations. A previous paper presented some limited experimental results and demonstrated the correspondence between a simple point model and the experimental data. This paper presents the results of experiments for: (1) the initial power fixed at 9 kW with central core temperatures of 300 0 F and 500 0 F, annd (2) the initial central core temperature fixed at 500 0 F with initial powers of 6 and 8 kW

  16. Mechanisms of mineral scaling in oil and geothermal wells studied in laboratory experiments by nuclear techniques

    International Nuclear Information System (INIS)

    Bjoernstad, T.; Stamatakis, E.

    2006-01-01

    Two independent nuclear methods have been developed and tested for studies of mineral scaling mechanisms and kinetics related to the oil and geothermal industry. The first is a gamma transmission method to measure mass increase with a 30 MBq source of 133 Ba. The other method applies radioactive tracers of one or more of the scaling components. CaCO 3 -precipitation has been used as an example here where the main tracer has been 47 Ca 2+ . While the transmission method is an indirect method, the latter is a direct method where the reactions of specific components may be studied. Both methods are on-line, continuous and non-destructive, and capable to study scaling of liquids with saturation ratios approaching the solubility product. A lower limit for detection of CaCO 3 with the transmission method in sand-packed columns with otherwise reasonable experimental parameters is estimated to be < 1 mg in a 1 cm section of the tube packed with silica sand while the lower limit of detection for the tracer method with reasonable experimental parameters is estimated to < 1 μg in the same tube section. (author)

  17. 3 and 4 oxidation state element solubilities in borosilicate glasses. Implement to actinides in nuclear glasses; Solubilite des elements aux degres d'oxydation (3) et (4) dans les verres de borosilicate. Application aux actinides dans les verres nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Cachia, J.N

    2005-12-15

    In order to ensure optimal radionuclides containment, the knowledge of the actinide loading limits in nuclear waste glasses and also the comprehension of the solubilization mechanisms of these elements are essential. A first part of this manuscript deals with the study of the differences in solubility of the tri and tetravalent elements (actinides and surrogates) particularly in function of the melting temperature. The results obtained indicate that trivalent elements (La, Gd, Nd, Am, Cm) exhibit a higher solubility than tetravalent elements (Hf, Th, Pu). Consequently, it was planned to reduce plutonium at the oxidation state (III), the later being essentially tetravalent in borosilicate glasses. An innovating reduction process of multi-valent elements (cerium, plutonium) using silicon nitride has been developed in a second part of this work. Reduced plutonium-bearing glasses synthesized by Si{sub 3}N{sub 4} addition made it possible to double the plutonium solubility from 2 to 4 wt% at 1200 deg C. A structural approach to investigate the differences between tri and tetravalent elements was finally undertaken. These investigations were carried out by X-rays Absorption Spectroscopy (EXAFS) and NMR. Trivalent rare earth and actinide elements seem to behave as network modifiers while tetravalent elements rather present true intermediaries' behaviour. (author)

  18. Modelling turbulent fluid flows in nuclear and fossil-fired power plants; La modelisation des ecoulements turbulents rencontres dans les reacteurs nucleaires et dans les centrales thermiques a flamme

    Energy Technology Data Exchange (ETDEWEB)

    Viollet, P.L.

    1995-06-01

    The turbulent flows encountered in nuclear reactor thermal hydraulic studies or fossil-fired plant thermo-aerodynamic analyses feature widely varying characteristics, frequently entailing heat transfers and two-phase flows so that modelling these phenomena tends more and more to involve coupling between several branches of engineering. Multi-scale geometries are often encountered, with complex wall shapes, such as a PWR vessel, a reactor coolant pump impeller or a circulating fluidized bed combustion chamber. When it comes to validating physical models of these flows, the analytical process highlights the main descriptive parameters of local flow conditions: tensor characterizing the turbulence anisotropy, characteristic time scales for turbulent flow particle dynamics. Cooperative procedures implemented between national or international working parties can accelerate validation by sharing and exchanging results obtained by the various organizations involved. With this principle accepted, we still have to validate the products themselves, i.e. the software used for the studies. In this context, the ESTET, ASTRID and N3S codes have been subjected to a battery of test cases covering their respective fields of application. These test cases are re-run for each new version, so that the sets of test cases systematically benefit from the gradually upgraded functionalities of the codes. (author). refs., 3 figs., 6 tabs.

  19. Exposure levels to radiation in a nuclear medicine laboratory: measurements with thermoluminescence dosemeters

    International Nuclear Information System (INIS)

    Ruiz J, A.

    2000-01-01

    Since 1996 in the Nuclear medicine Department and another routine and research departments of the National Institute of Medical and Nutrition Sciences (INCMNSZ) are working at least with 12 radioactive sources opened and sealed. However, it was unknown if with the Tl personal dosemeters with lithium fluoride crystals (LiF), could be possible to receive information about the equivalent dose for each radionuclide or if there was some radionuclide that by being low energy emissor or beta energy emissor, it did not represent an ionization power sufficient to excite the crystals of the thermoluminescent dosemeters (DTL). In this work the obtained results with control dosemeters of diverse source opened or sealed are shown, which were put at 1 cm of the LiF crystals during a time exposure 18 hours. Therefore the objective of this work is to verify which sources excite or not to DTL crystals and taking the pertinent safety measures for each radionuclide. The conclusion is that the majority of dosemeters were excited by beta or gamma radiation of the radionuclides and that LiF crystals are able to receive equivalent doses until 1200 mSv, being this a guarantee for the staff, that in an any moment could be exposed to high dose in his working day. Also it was corroborated that the radionuclides more energizer are: iodine-131, iodine-125 and sodium-22 while the phosphorus-32 must be managed with careful, since the exposure to hands can result significant, just like the technetium-99m ( 99m Tc). (Author)

  20. Research means to back the development of nuclear reactors; Les moyens de recherche en support a l'evolution des reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    After 50 year long feedback experience on nuclear reactor operations it is legitimate to wonder whether experimental facilities used to support nuclear power programs are still necessary. The various participants of this conference said yes for mainly 4 reasons: -) to validate the extension of the service life of a reactor without putting at risk its high safety standard, -) to give the reactor more flexibility to cope with the power demand, -) to confront the results given by computerized simulations with experimental data, and -) to qualify the nuclear systems of tomorrow. (A.C.)

  1. Behaviour of heavy water in nuclear reactors of the CEA; Comportement de l'eau lourde dans les piles du C.E.A

    Energy Technology Data Exchange (ETDEWEB)

    Chenouard, J; Dirian, G; Roth, E [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1955-07-01

    In the two heavy water reactors of the CEA: Zoe and P-2, we do: A) the supervision of the isotopic composition of the heavy water; B) the supervision of gases released by the decomposition of the heavy water under radiation, and to their recombination; C) periodic analyses of impurities. (M.B.) [French] Dans les deux piles a eau lourde du Commissariat a l'Energie Atomique: Zoe et P 2, nous effectuons: A) la surveillance de la composition isotopique de l'eau lourde; B) la surveillance des gaz degages par la decomposition de l'eau lourde sous radiation, et a leur recombinaison; C) des analyses periodiques d'impuretes. (M.B.)

  2. Building Connecticut's clinical biodosimetry laboratory surge capacity to mitigate the health consequences of radiological and nuclear disasters: A collaborative approach between the state biodosimetry laboratory and Connecticut's medical infrastructure

    International Nuclear Information System (INIS)

    Albanese, Joseph; Martens, Kelly; Arnold, Jeffrey L.; Kelley, Katherine; Kristie, Virginia; Forte, Elaine; Schneider, Mark; Dainiak, Nicholas

    2007-01-01

    Biodosimetry, based on the analysis of dicentric chromosomes in circulating mononuclear cells, is considered the 'gold standard' for estimating radiation dose and is used to make informed decisions regarding the medical management of irradiated persons. This paper describes the development of biodosimetry laboratory surge capacity for the health consequences of radiological and nuclear disasters in Connecticut, including: (1) establishment of the Biodosimetry Laboratory for the timely assessment of radiation dosage in biodosimetry specimens; (2) identification of clinical laboratories qualified and willing to process biodosimetry specimens from a large number of victims; (3) training of clinical laboratorians in initial biodosimetry specimen processing; and (4) conducting a functional drill that evaluated the effectiveness of these elements. Descriptive information was obtained from: (1) personal observations; (2) a needs assessment of clinical laboratories in Connecticut; (3) records from a training program of clinical laboratorians in biodosimetry specimen processing that was developed and provided by the Yale New Haven Center for Emergency Preparedness and Disaster Response; and (4) records from a statewide functional drill in biodosimetry specimen processing that was developed and conducted by the State of Connecticut Biodosimetry Laboratory. A needs assessment of clinical laboratories in Connecticut identified 30 of 32 clinical laboratories qualified and willing to perform initial biodosimetry specimen processing. Currently, 79 clinical laboratorians in 19 of these qualified clinical laboratories have been trained in biodosimetry specimen processing. A functional exercise was conducted involving 37 of these trained clinical laboratorians in 18 qualified laboratories as well as the Biodosimetry Laboratory. The average turnaround time for biodosimetry specimen processing in this drill was 199 min. Exercise participants provided feedback which will be used to

  3. General trends in the use of uranium in the nuclear industry; Tendances generales d'emploi de l'uranium dans les industries nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Salesse, M [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1960-07-01

    It can be seen from a consideration of the development of the military and civil needs for uranium that, in the long run, the main outlet for the metal will be provided by its industrial applications. The technical uncertainties concerning the best method of producing atomic energy are still numerous and in fact reflect the hesitation in choosing one of two classes of fuel: that based on the metal and that based on the oxide. Four main factors should influence the choice: - the neutron reactivity and the enrichment of the uranium; - the operating temperature; - the resistance to radiation effects; - the chemical stability; but in actual fact, when the choice for a particular use has to be made, it will be another type of factor, such as the cost price, and weight and space considerations which will determine the choice of either metallic uranium or uranium oxide reactors. (author) [French] D'apres le developpement des besoins militaires ou civils en uranium, on voit que les usages industriels de ce metal constituent, a long terme, le debouche essentiel. Les incertitudes techniques, sur le procede optimum pour faire de l'energie nucleaire, restent nombreuses, et se traduisent finalement par une hesitation entre deux grandes classes de combustibles: ceux a base de metal et ceux a base d'oxyde: la preference a l'une ou l'autre de ces deux categories doit s'inspirer de quatre considerations: - la reactivite neutronique et l'enrichissement de l'uranium; - la temperature de fonctionnement; - la resistance aux effets du rayonnement; - la stabilite chimique; mais en definitive, lorsqu'il s'agira d'une application determinee, ce seront des considerations d'un autre ordre, comme le prix de revient, le poids et l'encombrement, qui determineront le choix entre piles a uranium metallique et piles a oxyde d'uranium. (auteur)

  4. Research program on nuclear technology and nuclear safety

    International Nuclear Information System (INIS)

    Dreier, J.

    2010-04-01

    This paper elaborated for the Swiss Federal Office of Energy (SFOE) presents the synthesis report for 2009 made by the SFOE's program leader on the research program concerning nuclear technology and nuclear safety. Work carried out, knowledge gained and results obtained in the various areas are reported on. These include projects carried out in the Laboratory for Reactor Physics and System Behaviour LRS, the LTH Thermohydraulics Laboratory, the Laboratory for Nuclear Materials LNM, the Laboratory for Final Storage Safety LES and the Laboratory for Energy Systems Analysis LEA of the Paul Scherrer Institute PSI. Work done in 2009 and results obtained are reported on, including research on transients in Swiss reactors, risk and human reliability. Work on the 'Proteus' research reactor is reported on, as is work done on component safety. International co-operation in the area of serious accidents and the disposal of nuclear wastes is reported on. Future concepts for reactors and plant life management are discussed. The energy business in general is also discussed. Finally, national and international co-operation is noted and work to be done in 2010 is reviewed

  5. Les trous noirs

    CERN Document Server

    Ioli, Elena

    2016-01-01

    L'univers est peuplé par des étoiles, des planètes, des galaxies, des astéroïdes, des comètes, mais les trous noirs en sont certainement les habitants les plus mystérieux et les plus fascinants ! Grâce à cette merveilleuse histoire racontée par papy Gino, professeur d'astronomie, les trous noirs n auront plus de secrets pour vous ! C est l'été, le soleil illumine le ciel, la plage est en feu : une journée à la plage pleine de jeux et de plongée qui va se transformer pour Bernardo, Gregorio et leurs deux amis en une aventure inattendue. Ils découvriront les secrets des trous noirs, d étranges objets célestes que personne n'a jamais vus mais qui existent bel et bien ! Grand-père Gino, un professeur d astronomie à la retraite, emmènera les enfants à l'intérieur d'un trou noir, leur expliquera pourquoi ils sont noirs, comment ils sont nés et comment les scientifiques pensent qu'ils vont mourir. Et Gino leur racontera même ce qui se trouve de l'autre côté d'un trou noir...

  6. Les Cahiers du CREAD

    African Journals Online (AJOL)

    Admin

    phénomène et son évolution sur la période 1990-2009. A cet effet, ... que les dépenses publiques, le taux d'inflation, le taux de chômage et le SNMG sont les ..... economy into the dynamics of Post-Socialist economies: A framework of analysis ...

  7. Les Cahiers du CREAD

    African Journals Online (AJOL)

    Admin

    politiques, au cœur de cette stratégie développementiste qui a enfanté. 3 La formation ... humaines dans l'une des entreprises nationales algériennes pendant les ...... les années comme critères de recrutement pour deux différents niveaux ...

  8. Les Cahiers du CREAD

    African Journals Online (AJOL)

    Admin

    élimination. ... Les propriétés physiques et thermiques des différents types de déchets solides, tels ... des politiques en matière de gestion des déchets en Europe depuis les ..... soit un volume de stockage des déchets de plus de 1 520 440 m3.

  9. Development of nuclear medicine techniques - radiation protection issues for patients; Evolution des techniques en medecine nucleaire - Enjeux de radioprotection pour les patients

    Energy Technology Data Exchange (ETDEWEB)

    Marchandise, Xavier [Faculte de Medecine de Lille, F-59045 Lille Cedex (France)

    2011-07-15

    Nuclear medicine uses radioactive isotopes for diagnostic or therapeutic purposes. The radiation protection culture is now well-anchored in the training of nuclear medicine specialists in France and must remain at the highest possible level. However, practices change and the immediate medical - or even media - interest in new equipment and new tracers must not obscure the fundamentals of patient radiation protection. Particular vigilance is today required with regard to two aspects: - children; - the corresponding computed tomography. (author)

  10. The formal notices of the French authority of nuclear safety; Les mises en demeure de l'autorite de surete nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    The French authority of nuclear safety (ASN) publishes on its web site (http://www.asn.gouv.fr) the formal notices and official statements addressed by the ASN to the concerned responsible persons (operators of nuclear facilities, directors of companies etc..) when anomalies requiring a corrective action have been noticed during on-site or off-site safety inspections. This document brings together the formal notices addressed by the ASN since June 2000 and up to April 2002. (J.S.)

  11. Present day situation and perspectives of the nuclear sector in the USA; La situation actuelle et les perspectives du secteur nucleaire aux Etats-Unis

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    With the restart-up of Browns Ferry NPP on May 22, 2007, the US nuclear park comprises now 104 reactors in operation: 35 BWR-type and 69 PWR-type. NPPs are present in only 31 states and mainly in the eastern half of the country. Nuclear energy represents 20% of the US energy mix (coal: 50%, gas: 19%, hydro-power: 6%, petroleum: 3% and other renewable energies: 2%). The highest average availability rate in power generation is reached by nuclear energy (89.9%). The nuclear power generation reached 787.2 TWh in 2006, i.e. the second best result after the 2004 record (788.5 TWh). This document presents also some nuclear safety and radioprotection indicators (number of unplanned outages, failures, injury frequency rate), the programme of licenses extension, the permissions for power increase, the demands for design certification, for early site permit, and for combined construction permit and operating license. The regulation may be different from one state to the other and sometimes not favorable to a re-launch of nuclear energy. The situation of each state in this domain is presented in appendix. (J.S.)

  12. Les souvenirs du fondateur

    Directory of Open Access Journals (Sweden)

    Marie-Thérèse Curie

    2009-11-01

    Full Text Available J’étais vicaire à Notre-Dame de Dole dans les années cinquante. Cette fonction, à cette époque, me mettait en contact permanent avec les mouvements de jeunesse, ceux de l’âge d’or des « patros » et des colonies de vacances. On me demanda d’ailleurs de créer plusieurs de ces « colos » de filles (La Rixouse, les Rivières, les Perrets dans le Jura, mais aussi à l’île d’Yeu pour le diocèse. Mon bon contact avec les jeunes et la confiance de ma hiérarchie me désignèrent pour m’occuper d’une paroi...

  13. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs, Draft Environmental Impact Statement. Volume 1, Appendix D: Part A, Naval Spent Nuclear Fuel Management

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    Volume 1 to the Department of Energy`s Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Management Programs Environmental Impact Statement evaluates a range of alternatives for managing naval spent nuclear fuel expected to be removed from US Navy nuclear-powered vessels and prototype reactors through the year 2035. The Environmental Impact Statement (EIS) considers a range of alternatives for examining and storing naval spent nuclear fuel, including alternatives that terminate examination and involve storage close to the refueling or defueling site. The EIS covers the potential environmental impacts of each alternative, as well as cost impacts and impacts to the Naval Nuclear Propulsion Program mission. This Appendix covers aspects of the alternatives that involve managing naval spent nuclear fuel at four naval shipyards and the Naval Nuclear Propulsion Program Kesselring Site in West Milton, New York. This Appendix also covers the impacts of alternatives that involve examining naval spent nuclear fuel at the Expended Core Facility in Idaho and the potential impacts of constructing and operating an inspection facility at any of the Department of Energy (DOE) facilities considered in the EIS. This Appendix also considers the impacts of the alternative involving limited spent nuclear fuel examinations at Puget Sound Naval Shipyard. This Appendix does not address the impacts associated with storing naval spent nuclear fuel after it has been inspected and transferred to DOE facilities. These impacts are addressed in separate appendices for each DOE site.

  14. Regulatory oversight report 2009 concerning nuclear safety in Swiss nuclear installations; Aufsichtsbericht 2009 zur nuklearen Sicherheit in den schweizerischen Kernanlagen/Rapport de surveillance 2009 sur la securite nucleaire dans les installations nucleaires en Suisse/Regulatory oversight report 2009 concerning nuclear safety in Swiss nuclear installations

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-04-15

    conducted in compliance with the related rules and regulations. There were 2 notifiable incidents at PSI. ENSI awarded the PSI facilities and those at the universities of Basel and Lausanne an overall nuclear safety rating of good. The annual collective doses remained low. In 2009, the amount of radioactive material released into the environment through waste water and exhaust air from the NPPs, ZWILAG, the PSI and the other nuclear facilities was considerably lower than the limits specified in the operating licenses. The maximum doses, including those for residents in the immediate vicinity of a plant, were less than 1% of the annual exposure to natural radiation. Waste from reprocessing is again transported back to Switzerland from La Hague in France. All fuel assemblies and radioactive waste were transported in accordance with the limits specified in the regulations. NAGRA proposed several possible locations for the geological repository of low, medium and high-level waste. ENSI reviewed this proposal and concluded that each of the proposed locations meets the suitability criteria. NAGRA continued its research activities at the rock laboratories of Grimsel (crystalline rock) and Mont Terri (Opalinus clay). ENSI started a new experiment on rock deformation and is participating in two other experiments on Opalinus clay

  15. Sandia National Laboratories performance assessment methodology for long-term environmental programs : the history of nuclear waste management.

    Energy Technology Data Exchange (ETDEWEB)

    Marietta, Melvin Gary; Anderson, D. Richard; Bonano, Evaristo J.; Meacham, Paul Gregory (Raytheon Ktech, Albuquerque, NM)

    2011-11-01

    Sandia National Laboratories (SNL) is the world leader in the development of the detailed science underpinning the application of a probabilistic risk assessment methodology, referred to in this report as performance assessment (PA), for (1) understanding and forecasting the long-term behavior of a radioactive waste disposal system, (2) estimating the ability of the disposal system and its various components to isolate the waste, (3) developing regulations, (4) implementing programs to estimate the safety that the system can afford to individuals and to the environment, and (5) demonstrating compliance with the attendant regulatory requirements. This report documents the evolution of the SNL PA methodology from inception in the mid-1970s, summarizing major SNL PA applications including: the Subseabed Disposal Project PAs for high-level radioactive waste; the Waste Isolation Pilot Plant PAs for disposal of defense transuranic waste; the Yucca Mountain Project total system PAs for deep geologic disposal of spent nuclear fuel and high-level radioactive waste; PAs for the Greater Confinement Borehole Disposal boreholes at the Nevada National Security Site; and PA evaluations for disposal of high-level wastes and Department of Energy spent nuclear fuels stored at Idaho National Laboratory. In addition, the report summarizes smaller PA programs for long-term cover systems implemented for the Monticello, Utah, mill-tailings repository; a PA for the SNL Mixed Waste Landfill in support of environmental restoration; PA support for radioactive waste management efforts in Egypt, Iraq, and Taiwan; and, most recently, PAs for analysis of alternative high-level radioactive waste disposal strategies including repositories deep borehole disposal and geologic repositories in shale and granite. Finally, this report summarizes the extension of the PA methodology for radioactive waste disposal toward development of an enhanced PA system for carbon sequestration and storage systems

  16. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs draft environmental impact statement

    International Nuclear Information System (INIS)

    1994-06-01

    This document analyzes at a programmatic level the potential environmental consequences over the next 40 years of alternatives related to the transportation, receipt, processing, and storage of spent nuclear fuel under the responsibility of the US Department of Energy. It also analyzes the site-specific consequences of the Idaho National Engineering Laboratory sitewide actions anticipated over the next 10 years for waste and spent nuclear fuel management and environmental restoration. For programmatic spent nuclear fuel management, this document analyzes alternatives of no action, decentralization, regionalization, centralization and the use of the plans that existed in 1992/1993 for the management of these materials. For the Idaho National Engineering Laboratory, this document analyzes alternatives of no action, ten-year plan, minimum and maximum treatment, storage, and disposal of US Department of Energy wastes

  17. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Draft Environmental Impact Statement

    International Nuclear Information System (INIS)

    1994-06-01

    This document analyzes at a pregrammatic level the potential environmental consequences over the next 40 years of alternatives related to the transportation, receipt, processing, and storage of spent nuclear fuel under the responsibility of the US Department of Energy. It also analyzes the site-specific consequences of the Idaho National Engineering Laboratory sitewide actions anticipated over the next 10 years for waste and spent nuclear fuel management and environmental restoration. For pregrammatic spent nuclear fuel management, this document analyzes alternatives of no action, decentralization, regionalization, centralization and the use of the plans that existed in 1992/1993 for the management of these materials. For the Idaho National Engineering Laboratory, this document analyzes alternatives of no action, ten-year plan, minimum and maximum treatment, storage, and disposal of US Department of Energy wastes

  18. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Draft Environmental Impact Statement. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    This document analyzes at a pregrammatic level the potential environmental consequences over the next 40 years of alternatives related to the transportation, receipt, processing, and storage of spent nuclear fuel under the responsibility of the US Department of Energy. It also analyzes the site-specific consequences of the Idaho National Engineering Laboratory sitewide actions anticipated over the next 10 years for waste and spent nuclear fuel management and environmental restoration. For pregrammatic spent nuclear fuel management, this document analyzes alternatives of no action, decentralization, regionalization, centralization and the use of the plans that existed in 1992/1993 for the management of these materials. For the Idaho National Engineering Laboratory, this document analyzes alternatives of no action, ten-year plan, minimum and maximum treatment, storage, and disposal of US Department of Energy wastes.

  19. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Draft Environmental Impact Statement

    International Nuclear Information System (INIS)

    1994-06-01

    This document analyzes at a programmatic level the potential environmental consequences over the next 40 years of alternatives related to the transportation, receipt, processing, and storage of spent nuclear fuel under the responsibility of the US Department of Energy. It also analyzes the site-specific consequences of the Idaho National Engineering Laboratory sitewide actions anticipated over the next 10 years for waste and spent nuclear fuel management and environmental restoration. For programmatic spent nuclear fuel management this document analyzes alternatives of no action, decentralization, regionalization, centralization and the use of the plans that existed in 1992/1993 for the management of these materials. For the Idaho National Engineering Laboratory, this document analyzes alternatives of no action, ten-year plan, minimum and maximum and maximum treatment, storage, and disposal of US Department of Energy wastes

  20. Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Draft Environmental Impact Statement. Volume 2, Part A

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    This document analyzes at a programmatic level the potential environmental consequences over the next 40 years of alternatives related to the transportation, receipt, processing, and storage of spent nuclear fuel under the responsibility of the US Department of Energy. It also analyzes the site-specific consequences of the Idaho National Engineering Laboratory sitewide actions anticipated over the next 10 years for waste and spent nuclear fuel management and environmental restoration. For programmatic spent nuclear fuel management this document analyzes alternatives of no action, decentralization, regionalization, centralization and the use of the plans that existed in 1992/1993 for the management of these materials. For the Idaho National Engineering Laboratory, this document analyzes alternatives of no action, ten-year plan, minimum and maximum and maximum treatment, storage, and disposal of US Department of Energy wastes.