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JAEA Reports

Nuclear Facilities Management Section Mutsu Office, Aomori Research and Development Center operations report; FY 2009

Nagane, Satoru; Matsuno, Satoru; Yamamoto, Makoto; Tobinai, Kazuhito; Hori, Hiroshi; Kitahara, Katsumi; Yoshikawa, Seiji

JAEA-Review 2011-001, 49 Pages, 2011/03

JAEA-Review-2011-001.pdf:2.3MB

Nuclear Facilities Management Section is liquid nuclear waste facility, a small nuclear fuel treatment facility, operation, maintenance and decommissioning of the nuclear ship "MUTSU", which carried out the operation and maintenance services of solid waste facilities. This paper, for the Nuclear Facilities Management Section FY2009 (April 2009 - March 2010) summarized results of operations.

JAEA Reports

Survey of LEU based $$^{99}$$Mo production process

Tanimoto, Masataka; Amaya, D.*; Aoyama, Masashi; Kimura, Akihiro; Izumo, Hironobu; Tsuchiya, Kunihiko

JAEA-Review 2011-002, 26 Pages, 2011/03

JAEA-Review-2011-002.pdf:1.46MB

Recently, worldwide demand of $$^{99}$$Mo became rises. However the availability and supply of $$^{99}$$Mo for the manufacturing of generators has been a matter of concern. Concern arose from several factors including, amongst others, the shutdown of some nuclear reactors at Canada (NRU, etc.), uncertainty of reliable operating condition for radioisotope production and difficulties in the availability of highly enriched $$^{235}$$U (HEU) target material used in the majority of the production facilities. As countermeasure for this issue, the HEU is not used but $$^{99}$$Mo production from low enriched $$^{235}$$U (LEU) is performed. This production process was developed in Argentina by the Argentine Atomic Energy Commission (CNEA). In the last ten years, INVAP has been working in the supply of $$^{99}$$Mo production facilities using LEU. This report provides descriptions for the detail technical aspects related to a $$^{99}$$Mo production system using irradiated LEU targets.

JAEA Reports

The Step to the Japanese version of INIS Thesaurus

Itabashi, Keizo

JAEA-Review 2011-003, 279 Pages, 2011/03

JAEA-Review-2011-003.pdf:4.46MB
JAEA-Review-2011-003-appendix(CD-ROM).tsv:0.77MB

The outline of the attempt to the translation of INIS Thesaurus into Japanese is described here. And examples of descriptors of INIS thesaurus which are difficult to translate into Japanese are shown here, including typical examples due to the punctuation of English, singular and plural forms, same words have the different meanings in different fields, differences between the concepts of Japanese and English words, and other examples which are difficult to translate. And example of the worksheets used and the bilingual list of descriptors in the INIS Thesaurus are attached.

JAEA Reports

Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2009

Sumiya, Shuichi; Matsuura, Kenichi; Watanabe, Hitoshi; Nakano, Masanao; Takeyasu, Masanori; Fujita, Hiroki; Isozaki, Tokuju; Morisawa, Masato; Mizutani, Tomoko; Kokubun, Yuji; et al.

JAEA-Review 2011-004, 161 Pages, 2011/03

JAEA-Review-2011-004.pdf:4.09MB

Environmental radiation monitoring around the Tokai Reprocessing Plant has been performed by the Nuclear Fuel Cycle Engineering Laboratories, based on "Safety Regulations for the Reprocessing Plant of Japan Atomic Energy Agency, Chapter IV - Environmental Monitoring". This annual report presents the results of the environmental monitoring and the dose estimation to the hypothetical inhabitant due to the radioactivity discharged from the plant to the atmosphere and the sea during April 2009 to March 2010. Appendices present comprehensive information, such as monitoring program, monitoring methods, monitoring results and their trends, meteorological data and discharged radioactive wastes.

JAEA Reports

Report on survey on international hub

Ebisawa, Hirobumi; Hoshino, Junko; Hashimoto, Kazuichiro; Okada, Sohei

JAEA-Review 2011-005, 52 Pages, 2011/03

JAEA-Review-2011-005.pdf:4.21MB

Japan Atomic Energy Agency (JAEA) is promoting initiative to form an international Center of Excellence in line with its aim to accept more researchers/engineers from all over the world. Establishment of "Promotion Committee for International Center of Excellence" was planned in 2010 so as to intensify this initiative, and in February, 2010, we visited research institutions in Europe, which include European Organization for Nuclear Research (CERN), the construction site of ITER in Cadarache, and Rutherford Appleton Laboratory (RAL), with the intention to survey and learn their advanced activities and systems in regard to the international Center of Excellence, so that the committee will be able to make fruitful discussion. This report describes strategy taken in each institution for an international Center of Excellence, and the state of each institution regarding acceptance and management of overseas researchers and engineers, research environment, living environment/health and welfare, and PR activities/coexistence with the local community.

JAEA Reports

Review of research on simulation engineering in FY2009

Center for Computational Science & e-Systems

JAEA-Review 2011-006, 51 Pages, 2011/03

JAEA-Review-2011-006.pdf:3.59MB

Research on simulation engineering for nuclear applications, based on "the plan for meeting the mid-term goal of the Japan Atomic Energy Agency", has been performed at Center for Computational Science & e-Systems, Japan Atomic Energy Agency (CCSE/JAEA). CCSE established the committee consisting outside experts and authorities which does research evaluation and advices for the assistance of the research and development. This report summarizes results of the evaluation by the committee on the followings. (1) Research and development on simulation engineering performed at CCSE/JAEA in FY2009 (2) Research and development on simulation engineering performed at CCSE/JAEA in the period of the midterm plan (October 1st, 2005 - March 31st, 2010)

JAEA Reports

Mizunami Underground Research Laboratory Project, Annual report for fiscal year 2009

Kunimaru, Takanori; Mikake, Shinichiro; Nishio, Kazuhisa; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Hayano, Akira; Takeuchi, Ryuji; Saegusa, Hiromitsu; Oyama, Takuya; Mizuno, Takashi; et al.

JAEA-Review 2011-007, 145 Pages, 2011/03

JAEA-Review-2011-007.pdf:16.51MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is pursuing a geoscientific research and development project namely the Mizunami Underground Research Laboratory (MIU) Project in crystalline rock environment in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). Geoscientific research and the MIU Project are planned in three overlapping phases; Surface-based Investigation Phase (Phase 1), Construction Phase (Phase 2) and Operation Phase (Phase 3). Currently, the project is under the Construction Phase. This document introduces the results of the research and development in fiscal year 2009, as a part of the Construction Phase based on the MIU Master Plan updated in 2002, (1) Investigation at the MIU Construction Site and the Shobasama Site, (2) Construction at the MIU Construction Site, (3) Research Collaboration, etc. The goals of the Phase 2 are to develop and revise the models of the geological environment using the investigation results obtained during excavation and determine and assess changes in the geological environment in response to excavation, to evaluate the effectiveness of engineering techniques used for construction, maintenance and management of underground facilities, to establish detailed investigation plans of Phase 3.

JAEA Reports

Annual report of Nuclear Technology and Education Center (April 1, 2009 - March 31, 2010)

Nuclear Technology and Education Center

JAEA-Review 2011-008, 107 Pages, 2011/03

JAEA-Review-2011-008.pdf:2.14MB

This annual report summarizes the activities of Nuclear Technology and Education Center (NuTEC) of Japan Atomic Energy Agency (JAEA) in the fiscal year 2009. In this fiscal year, NuTEC flexibly designed and conducted new training courses upon requests while conducting the annually scheduled training programs, and actively enhanced the collaboration with academia and cooperation with international organizations.

JAEA Reports

Annual report of Fusion Research and Development Directorate of JAEA for FY2008 and FY2009

Fusion Research and Development Directorate

JAEA-Review 2011-009, 120 Pages, 2011/03

JAEA-Review-2011-009.pdf:18.78MB

This annual report provides an overview of major results and progress on research and development activities at Fusion Research and Development Directorate for FY2008 and FY2009. Concerning the ITER project, JAEA was nominated as the domestic agency by the Japanese government after the ITER Agreement took effect, and has fulfilled the obligations. In the development of superconducting conductors, JAEA immediately started and completed the construction of a plant to fabricate superconducting conductors, and started their fabrication ahead of other countries. For the Broader Approach (BA) activities, JAEA was designated as the implementing agency by the Japanese government after the BA Agreement took effect, and has fulfilled the obligations and promoted three projects in the BA activities steadily through domestic cooperation and coordination with Europe.

JAEA Reports

The Annual report on the environmental monitoring around the Ningyo-toge, 2009; Okayama

Ito, Kimio; Soma, Susumu; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2011-010, 44 Pages, 2011/03

JAEA-Review-2011-010.pdf:2.5MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency (JAEA Ningyo-toge) performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Environmental monitoring of plutonium has been also performed around the Ningyo-toge regarding the practical application study on the reprocessed uranium conversion, which was carried out from 1994 to 1999 at the Ningyo-toge. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Okayama prefecture in the fiscal year 2009. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the committee concluded that the environmental impacts from the sites were negligible. Therefore, the site of the JAEA Ningyo-toge has been well operated, and the waste rock sites have been well maintained.

JAEA Reports

The Annual report on the environmental monitoring around the waste rock sites, 2009; Tottori

Ito, Kimio; Soma, Susumu; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2011-011, 20 Pages, 2011/03

JAEA-Review-2011-011.pdf:1.59MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Tottori prefecture in the fiscal year 2009. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the waste rock sites have been well maintained. The committee concluded that the environmental impacts from the sites were negligible.

JAEA Reports

Survey of LEU based $$^{99m}$$Tc generators loading process

Tanimoto, Masataka; Amaya, D.*; Aoyama, Masashi; Kimura, Akihiro; Izumo, Hironobu; Tsuchiya, Kunihiko

JAEA-Review 2011-012, 13 Pages, 2011/06

JAEA-Review-2011-012.pdf:2.1MB

$$^{99m}$$Tc is most commonly used as a radiopharmaceutical in the field of nuclear medicine, accounting for more than 80% of all diagnostic nuclear medicine procedure. The $$^{99m}$$Tc is obtained from $$^{99}$$Mo, which is produced by fission of $$^{235}$$U ((n, f) method) and the neutron capture (n, $$gamma$$) method using the $$^{98}$$Mo target. However, a supplying of $$^{99}$$Mo is only depends on imports from any other countries, so JAEA find a way out at domestic production of a part of $$^{99}$$Mo that (n, $$gamma$$) method in cooperation with the industrial circles. On the other hand, INVAP has been working in the supply of $$^{99}$$Mo production facilities using LEU. This report provides descriptions the detail technical aspects related to the facility and operations for loading $$^{99m}$$Tc generator. These key issues and technical provided in this report is believed to be useful for developing and updating them.

JAEA Reports

Annual report of Engineering Services Department on JFY2009

Engineering Services Department

JAEA-Review 2011-013, 107 Pages, 2011/06

JAEA-Review-2011-013.pdf:11.15MB

The Engineering Services Department is in charge of operation and maintenance of utility facilities (water distribution systems, electricity supply systems, steam generation systems and drain water systems etc.) in whole of the institute. And also is in charge of operation and maintenance of specific systems (a receive transmitted electricity system, an emergency electric power supply system, an air/liquid waste treatment system, a compressed air supply system) in nuclear reactor facilities, nuclear fuel treatment facilities and usual facilities or buildings. In addition, the department is in charge of maintenance of buildings, design and repair of electrical/mechanical/glass made experimental equipments and operation of the large scale experiment facilities. This annual report describes summary of activities, operation and maintenance data and technical developments of the department carried out in JFY 2009.

JAEA Reports

Proceedings of the Workshops on "JAEA Project Researches at J-PARC/MLF"; Sep.29, Oct.28, and Oct.29, 2010, Ibaraki Quantum Beam Research Center, Tokai, Ibaraki, Japan

Kajimoto, Ryoichi; Maekawa, Fujio; Arima, Hiroshi; Yoshinari, Shizuka*; Arai, Masatoshi

JAEA-Review 2011-014, 213 Pages, 2011/06

JAEA-Review-2011-014.pdf:38.19MB

The operation for public use of MLF at J-PARC has started since the end of 2008. Rather stable neutron and muon beams at 120 kW are being supplied throughout 2010. Some of the instruments have already produced several good scientific outputs. Furthermore, operation at 200 kW, which exceeds the beam power of the ISIS facility in UK, has started since December 2010. In this promising situation for MLF, we hold three workshops for five neutron instruments which conducted researches for projects by Japan Atomic Energy Agency (JAEA) (project researches): "Workshop on BL19 (Sep. 29)", "Workshop on BL04+BL10 (Oct. 28)", and "Workshop on BL01+BL14 (Oct. 29)". There, status of the instruments and recent results of the project researches as well as a part of researches by general users were reported, and future directions and issues to be solved of the researches were discussed. This report includes abstracts, materials of the presentations and summary of discussions in the workshops.

JAEA Reports

History of the Special Committee on INIS Input Preparation

Itabashi, Keizo

JAEA-Review 2011-015, 158 Pages, 2011/06

JAEA-Review-2011-015.pdf:2.26MB

The special committee on INIS input techniques was held 8 times from December 1970 to March 1973. The special committee on INIS input preparation was held 39 times from February 1974 to December 2004. The history of these two committees is described.

JAEA Reports

Report on survey on international hub

Ebisawa, Hirobumi; Hoshino, Junko; Hashimoto, Kazuichiro; Okada, Sohei

JAEA-Review 2011-016, 54 Pages, 2011/06

JAEA-Review-2011-016.pdf:5.94MB

JAEA is promoting initiative to form an international hub in line with its aim to accept more researchers/engineers from all over the world. Establishment of "the Committee for JAEA Internationalization Initiative" was planned in 2010 so as to intensify this initiative, and in February, 2010, we visited research institutions in Europe, which include European Organization for Nuclear Research (CERN), the construction site of ITER in Cadarache, and Rutherford Appleton Laboratory (RAL), with the intention to survey and learn their advanced activities and systems in regard to the International Hub, so that the committee will be able to make fruitful discussion. This report describes strategy taken in each institution for an International Hub, and the state of each institution regarding acceptance and management of overseas researchers and engineers, research environment, living environment/health and welfare, and PR activities/coexistence with the local community.

JAEA Reports

Activities on the leakage of radioactive substances from buried pipe with cracking

Kameyama, Yasuhiko; Yanai, Tomohiro; Kurosawa, Akihiko; Asano, Norikazu; Hiyama, Kazuhisa; Kusunoki, Hidehiko; Fukasaku, Akitomi

JAEA-Review 2011-017, 19 Pages, 2011/06

JAEA-Review-2011-017.pdf:2.8MB

The Japan Materials Testing Reactor (JMTR) is a testing reactor dedicated to the irradiation tests of materials and fuels. The JMTR has been in a shutdown period since 2006 for its refurbishment, and will restart in 2011. Water analysis and so on are carried out in the hot experimental room, and sample preparation and measurement for the radiation management are carried out in the radiation control room. The waste fluid such as hand-wash water, sample water, washing water generated in these rooms is transferred to the waste tank in the hot machine room through the buried pipe. The crack was found at the flange of the buried pipe when sewerage works were carried out. The flange is located in a non-controlled area. A small amount of radionuclide (cesium 137 and cobalt 60) was detected as a result of radioactivity measurement from the surrounding soil. In this report, the cause of the leakage from the buried pipe, the countermeasure and the prevention measure are summarized.

JAEA Reports

Renewal of cooling system of JMTR

Onoue, Ryuji; Kawamata, Takanori; Otsuka, Kaoru; Koike, Sumio; Nishiyama, Yutaka; Fukasaku, Akitomi

JAEA-Review 2011-018, 17 Pages, 2011/06

JAEA-Review-2011-018.pdf:2.71MB

JMTR is a light water moderated and cooled tank-type reactor, and its thermal power is 50 MW. The JMTR is categorized as high flux testing reactors in the world. The JMTR has been utilized for irradiation experiments of nuclear fuels and materials, as well as for radioisotope productions since the first criticality in March 1968 until August 2006. JAEA decided to refurbish the JMTR as an important fundamental infrastructure to promote the nuclear research and development. The refurbishment work was started from 2007, and restart is planned in 2011. Renewal facilities were selected from evaluation on their damage and wear in terms of aging. Facilities whose replacement parts are no longer manufactured or not likely to be manufactured continuously in near future, are selected as renewal ones. Replacement priority was decided with special attention to safety concerns. A monitoring of aging condition by the regular maintenance activity is an important factor in selection of continuous using after the restart. In this report, renewal of the cooling system within refurbishment facilities in the JMTR is summarized.

JAEA Reports

Refurbishment and safety management of JMTR in extended showdown

Ide, Hiroshi; Hori, Naohiko; Gorai, Shigeru; Kusunoki, Tsuyoshi

JAEA-Review 2011-019, 24 Pages, 2011/06

JAEA-Review-2011-019.pdf:3.39MB

Japan Materials Testing Reactor (JMTR) is a testing reactor dedicated to the irradiation tests of materials and fuels. The reactor type of the JMTR is light water moderated and cooled tank type. It achieved first criticality in 1968. Operation was started in 1970. The JMTR had been being operated for 38 years from first criticality to the JMTR No.165 cycle finished. The restart of the JMTR has been strongly requested from various users as the only irradiation testing reactor in Japan. Finally, Japan Atomic Energy Agency (JAEA) decided the refurbishment and restart of the JMTR in December 2006, and the refurbishment works was started from FY 2007. This report summarized JMTR refurbishment and safety management during reactor shutdown.

JAEA Reports

Proceedings of the 4th Workshop of "Quantum Complex Phenomena" under the NIMS-RIKEN-JAEA Cooperative Research Program on Quantum Beam Science and Technology

Shamoto, Shinichi; Kodama, Katsuaki

JAEA-Review 2011-020, 149 Pages, 2011/07

JAEA-Review-2011-020.pdf:24.01MB

The 4th Workshop of the NIMS-RIKEN-JAEA Cooperative Research Program "Quantum Complex Phenomena" was held on December 20, 2010 at Center for Computational Science & e-Systems, Japan Atomic Energy Agency. This workshop is aimed to reveal the mechanism of quantum complex phenomena for the developments of next generation functional materials on the basis of "Joint Research Agreement for the Pioneering R&D with Quantum Beam Technology" concluded by NIMS, RIKEN and JAEA on December 20, 2006. This workshop day was the 4th anniversary of this Joint Research Agreement. Based on this circumstance, characteristic technologies, instruments, and distinguished researches of each institute are introduced and discussed in addition to research outcomes of this Joint Research Agreement including a future prospect of this research area. This report includes abstracts and materials of the presentations in the workshop.

JAEA Reports

Horonobe Underground Research Laboratory Project; Investigation program for the 2011 fiscal year

Nakayama, Masashi; Sawada, Sumiyuki; Sugita, Yutaka

JAEA-Review 2011-021, 27 Pages, 2011/06

JAEA-Review-2011-021.pdf:4.16MB

As part of the research and development program on geological disposal of high-level radioactive waste (HLW), the Horonobe Underground Research Center, a division of the Japan Atomic Energy Agency (JAEA), is implementing the Horonobe Underground Research Laboratory Project (Horonobe URL Project) with the aim at investigating sedimentary rock formations. According to the research plan described in the 2nd Midterm Plan of JAEA, geological investigations are to be carried out during the drilling of a shaft down to around 350m depth, while research and development in the areas of engineering technology and safety assessment are to be promoted by collaboration with other research organizations. The results of the R&D activities will be systematized as a "knowledge base" that supports a wide range of arguments related to the safety of geological disposal. The Horonobe URL Project is planned to extend over a period of 20 years. The investigations will be conducted in three phases, namely "Phase 1: Surface-based investigations", "Phase 2: Construction phase"(investigations during construction of the underground facilities)" and "Phase 3: Operation phase (research in the underground facilities)". This report summarizes the investigation program for the 2011 fiscal year (2011/2012). In the 2011 fiscal year, investigations in "geoscientific research", including "development of techniques for investigating the geological environment", "development of engineering techniques for use in the deep underground environment" and "studies on the long-term stability of the geological environment", are continuously carried out. Investigations in "research and development on geological disposal technology", including "improving the reliability of disposal technologies" and "enhancement of safety assessment methodologies", are also continuously carried out.

JAEA Reports

Concept and procedure of geoscientific study in the Mizunami Underground Research Laboratory Project; Study plan on Construction phase (Phase II) and Operation phase (Phase III) to 500m depth

Saegusa, Hiromitsu; Matsui, Hiroya; Hama, Katsuhiro; Sato, Toshinori; Tsuruta, Tadahiko; Takeuchi, Ryuji; Kunimaru, Takanori; Matsuoka, Toshiyuki; Mizuno, Takashi

JAEA-Review 2011-022, 78 Pages, 2011/06

JAEA-Review-2011-022.pdf:10.05MB
JAEA-Review-2011-022(errata).pdf:0.5MB

Japan Atomic Energy Agency (JAEA) is being performed Mizunami Underground Research Laboratory (MIU) Project, which is a broad scientific study of the deep geological environment as a basis of research and development for geological disposal of nuclear wastes, in order to establish comprehensive techniques for the investigation, analysis and assessment of the deep geological environment in fractured crystalline rock. The MIU Project has three overlapping phases: Surface-based Investigation phase (Phase I), Construction phase (Phase II), and Operation phase (Phase III), with a total duration of about 20 years. The project goals of the MIU Project from Phase I through to Phase III are: (1) to establish techniques for investigation, analysis and assessment of the deep geological environment, and (2) to develop a range of engineering for deep underground application. This document presents the concept and procedure of geoscientific study on Phase II and III to 500m depth.

JAEA Reports

Research plan on geosphere stability for long-term isolation of radioactive waste; Scientific programme for fiscal years 2011

Yasue, Kenichi; Asamori, Koichi; Kusano, Tomohiro; Kokubu, Yoko; Tanikawa, Shinichi; Niwa, Masakazu; Hanamuro, Takahiro; Yamasaki, Seiko; Yamada, Kunimi; Ishimaru, Tsuneari; et al.

JAEA-Review 2011-023, 43 Pages, 2011/07

JAEA-Review-2011-023.pdf:1.84MB

The concept of geological disposal of HLW in Japan is based on a multibarrier system which combines a stable geological environment with an engineered barrier system. Potential geological host formations and their surroundings are chosen, in particular, for their long-term stability, taking into account the fact that Japan is located in a tectonically active zone. This report is a plan of research and development (R&D) for geosphere stability for long-term isolation of HLW in JAEA, in fiscal year 2011. The objectives and contents in fiscal year 2011 are described in detail based on the outline of 5 years plan (fiscal years 2010-2014). In addition, the plan framework is structured into the following categories: (1) Development and systematization of investigation techniques, (2) Development of models for long-term estimation and effective assessment, (3) Development of dating techniques.

JAEA Reports

Introduction to the Revision 5 of Evaluation Methodology for Proliferation Resistance and Physical Protection of Generation IV Nuclear Energy Systems

Kawakubo, Yoko; Inoue, Naoko; Senzaki, Masao

JAEA-Review 2011-024, 75 Pages, 2011/12

JAEA-Review-2011-024.pdf:3.61MB

Revision 5 of the "Evaluation Methodology for Proliferation Resistance and Physical Protection of Generation IV Nuclear Energy Systems" is also known as the Rev. 5 report. The Rev. 5 report provides an important evaluation framework that was developed with consensus-based discussions, and published by the OECD-NEA in November, 2006. The activities of PR&PP WG has contributed to establish PR&PP culture. Japan has to develop the future nuclear cycle system with sufficient proliferation resistance and physical protection features and demonstrate and explain about its effectiveness to the domestic and international society. For these reasons, and recognizing the usefulness of the Revision-5 Report, it was translated and published here as a Japanese-language edition with the concurrence of the OECD-NEA. The original report in English language can be downloaded at the OECD-NEA website.

JAEA Reports

Document collection of the 22nd Technical Special Committee on Fugen Decommissioning

Kutsuna, Hideki; Matsumori, Akira*; Izumi, Masanori; Hayashi, Hirokazu; Higashiura, Norikazu

JAEA-Review 2011-025, 43 Pages, 2011/07

JAEA-Review-2011-025.pdf:2.84MB

In planning and carrying out our decommissioning technical development, "Technical special committee on Fugen decommissioning", which consists of the members well-informed, is established, aiming to make good use of Fugen as a place for technological development which is opened inside and outside the country, as the central point in the energy research and development base making project of Fukui prefecture, and to utilize the outcome in our decommissioning to the technical development effectively. This report compiles presentation materials "Current Situation of Fugen Decommissioning", "Radioactive Corrosion Products (CP) Decontamination Experiment with Heavy Water System Equipment", "Application of management data evaluation system to Fugen", "Preparatory Situation for Operation of Clearance System" of the 22nd Technical special committee on Fugen decommissioning which held on September 14, 2010.

JAEA Reports

Document collection of the 23rd Technical Special Committee on Fugen Decommissioning

Otani, Hiroshi; Hayashi, Hirokazu; Kawagoe, Shinji; Hamada, Nobuyuki; Nakamura, Yasuyuki

JAEA-Review 2011-026, 41 Pages, 2011/07

JAEA-Review-2011-026.pdf:7.38MB

In planning and carrying out our decommissioning technical development, "Technical special committee on Fugen decommissioning", which consists of the members well-informed, is established, aiming to make good use of Fugen as a place for technological development which is opened inside and outside the country, as the central point in the energy research and development base making project of Fukui prefecture, and to utilize the outcome in our decommissioning to the technical development effectively. This report compiles presentation materials "Current Situation of Fugen Decommissioning", "Preparatory Situation for Operation of Clearance System", "Examined Situation of Nuclear Reactor Dismantlement Technology" of the 23rd Technical special committee on Fugen decommissioning which held on March 11, 2011.

JAEA Reports

Mizunami Underground Research Laboratory Project, Plan for fiscal year 2011

Kunimaru, Takanori; Mikake, Shinichiro; Nishio, Kazuhisa; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Takeuchi, Ryuji; Saegusa, Hiromitsu; Mizuno, Takashi; Sato, Toshinori; Ogata, Nobuhisa; et al.

JAEA-Review 2011-027, 30 Pages, 2011/08

JAEA-Review-2011-027.pdf:4.18MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is pursuing a geoscientific research and development project namely the Mizunami Underground Research Laboratory (MIU) project in crystalline rock environment in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). Geoscientific research and the MIU project is planned in three overlapping phases; Surface-based Investigation Phase (Phase1), Construction Phase (Phase2) and Operation Phase (Phase3). Currently, the project is under the Construction Phase, and the Operation Phase. This document introduces the research and development activities planned for 2011 fiscal year plan based on the MIU Master Plan updated in 2010, Investigation Plan, Construction Plan and Research Collaboration Plan, etc.

JAEA Reports

Report on the research through the U.S. DOE "The International Search and Consequence Management Workshop (ISCM-WS)"

Kawakami, Takeshi; Tasaki, Takashi

JAEA-Review 2011-028, 47 Pages, 2011/12

JAEA-Review-2011-028.pdf:3.25MB

The International Search and Consequence Management Workshop (ISCM-WS) that was organized by the U.S. Department of Energy (DOE) took place from May 17th to May 20th, 2010. The Aim of this Workshop is to build and enhance the global capacity to prevent and respond to nuclear and radiological emergencies, and it directly supports the aims of global initiative to combat nuclear terrorism. DOE brought together 92 officials from 26 countries and 3 officials from IAEA in this Workshop. DOE introduced two matters in USA, First is response against nuclear and radiological terrorisms and second is technology, systems, activity for consequence management. This review report summarized the observation in the ISCM-WS including activity of DOE/NNSA's Search Response Team and activity of consequence management.

JAEA Reports

Brief report of the JAEA cooperative research (A) on the nuclear fuel cycle for 2010

Research Cooperation Section

JAEA-Review 2011-030, 158 Pages, 2011/08

JAEA-Review-2011-030.pdf:33.26MB

This report includes a summary of the results of the research carried out in fiscal year 2010 on 30 research collaboration subjects for preceding basic engineering research related to fast breeder reactors, the nuclear fuel cycle, radiation safety and geological disposal/geoscience; nine of which ended in 2010.

JAEA Reports

Reports on JAEA's Reimei Research Program; April 1, 2010 - March 31, 2011

Nagame, Yuichiro

JAEA-Review 2011-031, 27 Pages, 2011/08

JAEA-Review-2011-031.pdf:2.39MB

This is a report of research results achieved through the five research projects, which were implemented as the Reimei Research Program of FY2010. The report is presented with the aim of development of atomic energy science research.

JAEA Reports

International standardization of safety requirements for fast reactors

FBR Safety Unit

JAEA-Review 2011-032, 207 Pages, 2011/06

JAEA-Review-2011-032.pdf:5.39MB

Japan Atomic Energy Agency (JAEA) is conducting the FaCT (Fast Reactor Cycle Technology Development) project in cooperation with Japan Atomic Power Company (JAPC) and Mitsubishi FBR systems inc. (MFBR), where an advanced loop-type fast reactor named JSFR (Japan Sodium-cooled Fast Reactor) is being developed. It is important to develop software technologies (a safety guideline, safety design criteria, safety design standards etc.) of FBRs as well as hardware ones (a reactor plant itself) in order to address prospective worldwide utilization of FBR technology. Therefore, it is expected to establish a rational safety guideline applicable to the JSFR and harmonized with national nuclear-safety regulations as well, including Japan, the United States and the European Union. This report presents domestic and international status of safety guideline development for sodium-cooled fast reactors (SFRs), results of comparative study for safety requirements provided in existing documents and a proposal for safety requirements of future SFRs with a roadmap for their refinement and worldwide utilization.

JAEA Reports

Horonobe Underground Research Laboratory Project; Investigation report for the 2010 fiscal year

Nakayama, Masashi; Sawada, Sumiyuki; Sugita, Yutaka

JAEA-Review 2011-033, 80 Pages, 2011/09

JAEA-Review-2011-033.pdf:13.93MB

The Horonobe Underground Research Laboratory Project is planned to extend over a period 20 years. The investigations will be conducted in three phases, namely "Phase 1: Surface-based investigations", "Phase 2: Construction Phase" (investigations during construction of the underground facilities) and "Phase 3: Operation phase" (research in the underground facilities). This report summarizes the results of the investigations for the 2010 fiscal year (2010/2011). The investigations, which are composed of "Geoscientific research" and "R&D on geological disposal technology", were carried out according to "Horonobe Underground Research Laboratory Project Investigation Program for the 2010 fiscal year". The results of these investigations, along with the results which were obtained in other departments of Japan Atomic Energy Agency (JAEA), are properly offered to the implementations and the safety regulations. For the sake of this, JAEA has proceeded with the project in collaboration with experts from domestic and overseas research organisations.

JAEA Reports

Annual report of R&D activities in Center for Computational Science & e-Systems from April 1, 2009 to March 31, 2010

Center for Computational Science & e-Systems

JAEA-Review 2011-034, 64 Pages, 2011/10

JAEA-Review-2011-034.pdf:6.52MB

This report overviews the activity of its research and development in Center for Computational Science & e-Systems (CCSE), JAEA, during the fiscal year 2009 (April 1, 2009 - March 31, 2010). The work has been accomplished by the Simulation Technology R&D Office and Computer Science R&D Office in CCSE. This report summarizes its achievement in the field of computer science in nuclear engineering, computational mechanics, computational materials science, and computational quantum bioinformatics. The activity includes a research of, secure computational infrastructure for the use in atomic energy research, which is based on the grid technology, a seismic response analysis for the structure of nuclear power plants, materials science, and quantum bioinformatics.

JAEA Reports

Results of the environmental radiation monitoring following the accident at the Fukushima Daiichi Nuclear Power Plant; Interim report (Ambient radiation dose rate, radioactivity concentration in the air and radioactivity concentration in the fallout)

Furuta, Sadaaki; Sumiya, Shuichi; Watanabe, Hitoshi; Nakano, Masanao; Imaizumi, Kenji; Takeyasu, Masanori; Nakada, Akira; Fujita, Hiroki; Mizutani, Tomoko; Morisawa, Masato; et al.

JAEA-Review 2011-035, 89 Pages, 2011/08

JAEA-Review-2011-035.pdf:2.97MB

As a correspondence to the accident at the Fukushima Daiichi Nuclear Power Plant, the environmental radiation monitoring was performed at the Nuclear Fuel Cycle Engineering Laboratories, JAEA. This report presented the measurement results of ambient radiation dose rate, radioactivity concentration in the air and radioactivity concentration in fallout and meteorological observation result until May 31, 2011. The ambient radiation dose rate increased, with the peak dose rate of several thousand nGy/h at 7 o'clock in March 15, at 5 o'clock in March 16, and at 4 o'clock in March 21. The variation on the radioactivity concentration in the air and in fallout showed the almost same tendency as that of the dose rate. The concentration ratio of I-131/Cs-137 in the air increased to about 100. The dose was estimated resulting from internal exposure due to inhalation.

JAEA Reports

Operation, test, research and development of the High Temperature Engineering Test Reactor (HTTR) (FY2010)

Department of HTTR

JAEA-Review 2011-036, 88 Pages, 2011/11

JAEA-Review-2011-036.pdf:4.82MB

The High Temperature Engineering Test Reactor (HTTR) constructed at the Oarai Research and Development Center of the Japan Atomic Energy Agency (JAEA) is the first high-temperature gas-cooled reactor (HTGR) in Japan. In fiscal year 2010, the safety demonstration tests in 9MW of thermal power have been carried out and the test data was obtained. This report summarizes activities and results of HTTR operation, maintenance, and several R&Ds, which were carried out in the fiscal year 2010.

JAEA Reports

Annual report of Nuclear Emergency Assistance and Training Center (April 1, 2010 - March 31, 2011)

Katagiri, Hiromi; Okuno, Hiroshi; Sawahata, Masayoshi; Ikeda, Takeshi; Sato, Sohei; Terakado, Naoya; Nagakura, Tomohiro; Nakanishi, Chika; Fukumoto, Masahiro; Yamamoto, Kazuya; et al.

JAEA-Review 2011-037, 66 Pages, 2011/12

JAEA-Review-2011-037.pdf:4.52MB

When a Nuclear emergency occurs, Nuclear Emergency Assistance & Training Center (NEAT) of JAEA gives technical advice and information, dispatch specialists as required, supplies emergency equipment and materials to the National Government and local governments. NEAT provides various lectures and training courses concerning nuclear disaster prevention for those personnel taking an active part in emergency response organizations at normal time. NEAT also researches on nuclear disaster prevention and cooperates with international organizations. Concerning about the assistance to the Accident of Fukushima No.1 Nuclear Power Station caused by the Great East Japan Earthquake at 11 March, 2011, JAEA assisted activities including environmental radiation monitoring, environmental radioactivity analyses, resident public consulting etc., with its full scale effort. NEAT served as the center of these supporting activities of JAEA.

JAEA Reports

Review of International forum on Peaceful Use of Nuclear Energy and Nuclear Non-Proliferation

Shimizu, Ryo; Suzuki, Mitsutoshi; Sakurai, Satoshi; Tamai, Hiroshi; Yamamura, Tsukasa; Naoi, Yosuke; Kuno, Yusuke

JAEA-Review 2011-038, 116 Pages, 2012/02

JAEA-Review-2011-038.pdf:21.45MB

International forum on peaceful use of nuclear energy and nuclear non-proliferation was held at Gakushi-kaikan, Tokyo on February 2-3, 2011 in cooperation with The Japan Institute of International Affairs (JIIA) and The University of Tokyo Global COE. In our International Forum, we would like to encourage active discussion of international challenges to and solutions for compatibility between peaceful use of nuclear energy and nuclear non-proliferation, and international cooperation for emerging nuclear energy states. It was successfully carried out with as many as 310 participants and a lot of discussions. This report includes abstracts of keynote speeches, summary of panel discussions and materials of the presentations in the forum.

JAEA Reports

Nondestructive measurement results of uranium-contaminated wastes using the passive $$gamma$$ method

Suzuki, Satoshi*; Komatsuzaki, Takashi*; Tadokoro, Hideaki*; Oki, Koichi

JAEA-Review 2011-039, 74 Pages, 2012/01

JAEA-Review-2011-039.pdf:2.6MB

This report summarizes outline, methods and measurement results of actual wastes of nondestructive measurement system using the passive $$gamma$$ method applied to the evaluation of the quantity of uranium in the drum waste (0.2 m$$^{3}$$) and container waste (1 m$$^{3}$$). The following are the results. (1) The measurement number of drum wastes was 18,884 (4,703 of the number were pit wastes), at the end of March, 2011. (2) The measurement number of container wastes was 749 (110 of the number were pit wastes), at the end of March, 2011. (3) About 60% of drum wastes and about 80% of container wastes were metal and concrete. (4) 75% of drum wastes were less than detection limit, and average of radioactivity is 3.4 Bq (U-238)/g. Then 17% of container wastes were less than detection limit, and average of radioactivity is 2.3 Bq (U-238)/g. (5) If clearance level is 1.0 Bq (U-238)/g (IAEA RS-G-1.7), about 80% of wastes are below the clearance level.

JAEA Reports

JAEA-Tokai tandem annual report 2010; April 1, 2010 - March 31, 2011

Department of Research Reactor and Tandem Accelerator

JAEA-Review 2011-040, 119 Pages, 2011/12

JAEA-Review-2011-040.pdf:6.15MB

JAEA-Tokai tandem accelerator facility has been utilized by researchers from universities, research institutes, industrial companies as well as from in-house research groups in the fields of nuclear science, materials science etc. This report covers development of accelerators and research activities carried out in the period of April 1, 2010 to March 31, 2011. Thirty-six summary reports are categolized into seven research fields; (1) Accelerator operation and development, (2) Nuclear structure, (3) Nuclear reaction, (4) Nuclear chemistry, (5) Nuclear theory, (6) Atomic physics and solid-state physics and (7) Radiation effect in materials. This report also lists publications, meetings, personnel, committee members, cooperative researches and common use programs.

JAEA Reports

Document collection of the 24th Technical Special Committee on Fugen Decommissioning

Otani, Hiroshi; Matsushima, Akira; Mori, Naoto; Kutsuna, Hideki; Higashiura, Norikazu

JAEA-Review 2011-041, 55 Pages, 2012/01

JAEA-Review-2011-041.pdf:6.08MB

In planning and carrying out decommissioning technical development of Fugen, "Technical special committee on Fugen decommissioning", which consists of the members well-informed, is established, aiming to make good use of Fugen as a place for technological development which is opened inside and outside the country, as the central point in the energy research and development base making project of Fukui prefecture, and to utilize the outcome in our decommissioning to the technical development effectively. This report compiles presentation materials "Current Situation of Fugen Decommissioning", "Radioactive Corrosion Products Decontamination Experiment with using Heavy Water System Equipment", "Laser Cutting Test on Dust Behavior in Cutting Work in Air", "Preparatory Situation for Operation of Clearance System" of this committee.

JAEA Reports

Status of international cooperation in nuclear technology on testing/research reactors between JAEA and INP-NNC

Kawamura, Hiroshi; Chakrov, P.*; Tsuchiya, Kunihiko; Gizatulin, S.*; Takemoto, Noriyuki; Chakrova, Y.*; Kimura, Akihiro; Ludmila, C.*; Tanimoto, Masataka; Asset, S.*; et al.

JAEA-Review 2011-042, 46 Pages, 2012/02

JAEA-Review-2011-042.pdf:2.69MB

Based on the implementing agreement between National Nuclear Center of the Republic of Kazakhstan (NNC) and the Japan Atomic Energy Agency (JAEA) for the Nuclear Technology on Testing/Research Reactors in the cooperation in Nuclear Energy Research and Development in Nuclear Energy and Technology, four specific topics of cooperation (STC) have been carried out from June, 2009. Four STCs are as follows; (1) STC No.II-1: International Standard of Instrumentation, (2) STC No.II-2: Irradiation Technology of RI Production, (3) STC No.II-3: Lifetime Expansion of Beryllium Reflector, (4) STC No.II-4: Irradiation Technology for NTD-Si. The information exchange, personal exchange and cooperation experiments are carried out under these STCs. The status in the field of nuclear technology on testing/research reactors in the implementing arrangement is summarized, and future plans of these specific topics of cooperation are described in this report.

JAEA Reports

JAEA Takasaki annual report 2010

Kojima, Takuji

JAEA-Review 2011-043, 207 Pages, 2012/01

JAEA-Review-2011-043.pdf:12.74MB

JAEA Takasaki annual report 2010 describes research and development activities performed from April 1, 2010 to March 31, 2011 with Takasaki Ion Accelerators for Advanced Radiation Application (TIARA), and electron/$$gamma$$-ray irradiation facilities at Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency (JAEA Takasaki). These activities are classified into four research fields: (1) Space, Nuclear and Energy Engineering, (2) Environmental Conservation and Resource Exploitation, (3) Medical and Biotechnological Application, and (4) Advanced Materials, Analysis and Novel Technology. This annual report contains 159 reports consisting of 151 research papers and 8 status reports on operation/maintenance of the irradiation facilities described above, and a list of publications, patents, related press-releases, TV broadcasting, and the type of research collaborations as Appendices.

JAEA Reports

Annual report on operation and management of Hot Laboratories and Facilities; From April 1, 2010 to March 31, 2011

Department of Hot Laboratories and Facilities

JAEA-Review 2011-044, 100 Pages, 2012/02

JAEA-Review-2011-044.pdf:7.64MB

This report describes the operation and management of eleven facilities under the Department of Hot Laboratories and Facilities during a fiscal year of 2010. In Reactor Fuel Examination Facility, various post-irradiation examinations were performed regarding the advanced light water reactor fuel performance and safety research program, and the development of vessel material for spallation target of neutron scattering facility. In order to update and install new equipment, the license revision for the use of nuclear fuel materials was applied and its facility inspection by the ministry was accepted. In Waste Safety Testing Facility, various examinations were performed regarding the irradiation assisted stress corrosion cracking behavior for nuclear power plant materials, corrosion properties for stainless steel against the dense uranyl solution, and properties of minor actinide bearing fuels. In order to perform the autoclave test for fuel claddings, the license revision for the use of nuclear fuel materials was applied and accepted. Since 2010, chemical analyses have been made by request at No.4 Research Laboratory, including maintenance of shared instruments and the technical assistance. In Research Hot Laboratory, the decontamination of hot cells and the dismantling of auxiliary equipment were performed at the lead cells on the decommissioning schedule of a fiscal year 2010. In addition, the facility management was carried out of No.1 Plutonium Laboratory, No.2 Research Laboratory, Analytical Chemistry Laboratory, Uranium Enrichment Laboratory, Simulation Test for Environmental Radionuclide Migration, Clean Laboratory for Environmental Analysis and Research, and Fuel Storage.

JAEA Reports

Proceedings of Information and Opinion Exchange Conference on Geoscientific Study, 2011

Nishio, Kazuhisa; Shimada, Akiomi

JAEA-Review 2011-045, 101 Pages, 2012/02

JAEA-Review-2011-045.pdf:31.69MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) has been conducting a geoscientific studies in order to establish a scientific and technological basis for the geological disposal of HLW. Information and Opinion Exchange Conference on Geoscientific Study has been held by TGC annually. The conference provides technical information and an opportunity for peer review and exchange of opinions on the geoscientific studies conducted at TGC. Research specialists and engineers from Japanese universities, research organizations and private companies usually participate in the conference. This document compiles research presentations, posters of the conference at Mizunami on November 1, 2011.

JAEA Reports

Sodium fire test at broad ranges of temperature and oxygen concentrations, 4; Low temperature sodium spray tests (Translated document)

Kawata, Koji; Matsuki, Takuo*; Miyahara, Shinya

JAEA-Review 2011-046, 42 Pages, 2012/02

JAEA-Review-2011-046.pdf:2.41MB

Sodium spray fire tests at an initial sodium temperature of 250$$^{circ}$$C were conducted under the atmospheric conditions of air and 3% oxygen containing nitrogen to determine both the sodium burning rate and the aerosol release fraction.

JAEA Reports

Cracking investigation of Monju emergency generator C unit cylinder liner; Cylinder liner soundness confirmation by a fall cause of the materials strength of the cylinder liner and the supersonic wave speed

Kobayashi, Takanori; Sakon, Miyoji; Takada, Osamu; Hatori, Masakazu; Sakamoto, Tsutomu; Sato, Toshiyuki; Kazama, Akihito*; Ishizawa, Yoshihiro*; Igawa, Katsuhisa*; Nakae, Hideo*

JAEA-Review 2011-047, 48 Pages, 2012/02

JAEA-Review-2011-047.pdf:9.58MB

I confirmed a leak of the effluent gas from cylinder part during a load examination after the check of the emergency generator C unit on December 28, 2010 of the facilities check average and confirmed crack in No.8 cylinder liner part. As a result, because it was not performed oil pressure management properly without attaching an oil pressure gauge when I removed cylinder liner about the cause, crack occurred by having been able to write excessive stress for the cylinder liner and reached damage. By a process of this investigation, a fall of the materials strength of some cylinder liner was confirmed, but because a lead ingredient got mixed with materials by a casting process at the time of the production of the cylinder liner, as for this, Widmannst tten graphite occurred, and it became clear that materials strength fell. In addition, I performed inspection by the supersonic wave velocity measurement as technique to distinguish this Widmannst tten graphite easily and confirmed that I was effective.

JAEA Reports

The Activity record against the 2011 off the Pacific coast of Tohoku earthquake in the Department of Hot Laboratories and Facilities, 1; Emergency activities at onset

Department of Hot Laboratories and Facilities

JAEA-Review 2011-048, 35 Pages, 2012/02

JAEA-Review-2011-048.pdf:1.7MB

This document describes the activity record in the Department of Hot Laboratories and Facilities against the 2011 off the Pacific coast of Tohoku earthquake. This Part I includes the damage situations and the emergency activities on 11th March for the 11 nuclear facilities managed by the department. The subsequent activities, such as the repairs or restorations, are described in the Part II. Despite the enormous damages for some of these facilities, such as the Research Hot Laboratory or the Reactor Fuel Examination Facility, there was no victim or no release of the radioactive materials out to the facilities. It was the great deal of the periodic patrol for the safety and health which is based on the manual procedure for the earthquake countermeasures executed since 1st January 2011.

JAEA Reports

Lessons learned and recommendations according to nuclear disaster prevention based on the support activities to the accident at Fukushima Nuclear Power Stations

Sato, Sohei; Yamamoto, Kazuya; Muto, Shigeo; Fukumoto, Masahiro; Katagiri, Hiromi

JAEA-Review 2011-049, 77 Pages, 2012/01

JAEA-Review-2011-049.pdf:13.24MB

The Tohoku District-off the Pacific Ocean Earthquake occurred at 14:46 on March 11, 2011. Tsunami caused by the earthquake attacked the Fukushima Dai-ichi and Fukushima Dai-ni Nuclear Power Stations of Tokyo Electric Power Company and nuclear accidents involving release of radioactive material occurred. Since the earthquake, Nuclear Emergency Assistance and Training Center (NEAT) has served as a base of support activities conducted by Japan Atomic Energy Agency (JAEA). After nearly half a year has passed since the occurrence of the accident, we compiled the support activities of NEAT. NEAT's lessons learned and recommendations based on the experiences of support activities to the accident should be very helpful in considering the structure of nuclear emergency preparedness and response. We summarized them in this time. We hope that this report helps further developing nuclear emergency preparedness and response in the future.

JAEA Reports

Activity report on the utilization of research reactors (JRR-3 and JRR-4); Japanese fiscal year, 2007

Research Reactor Utilization Section

JAEA-Review 2011-050, 404 Pages, 2012/03

JAEA-Review-2011-050.pdf:25.04MB

In the fiscal year 2007 the research reactor (JRR-3, JRR-4) conducted a user experiment with the use and exposure (including outside JAEA) received the submission of the results from this is put together.

JAEA Reports

Environmental performance data in Environmental Report 2011

Environmental Management Section, Safety Administration Department

JAEA-Review 2011-051, 208 Pages, 2012/02

JAEA-Review-2011-051.pdf:5.66MB

In September, 2011 Japan Atomic Energy Agency published the Environmental Report 2011 concerning the activities of FY 2010 under "Law Concerning the Promotion of Business Activities with Environmental Consideration by Specified Corporations, etc, by Facilitating Access to Environmental Information, and Other Measures". This report has been edited to show detailed environmental performance data in FY 2010 as the base of the Environmental Report 2011. This report would not only ensure traceability of the data in order to enhance the reliability of the environmental report, but also make useful measures for promoting activities of environmental considerations in JAEA.

JAEA Reports

Summaries of research and development activities by using JAEA computer system in FY2010 (April 1, 2010 - March 31, 2011)

Information Technology Systems' Management and Operating Office

JAEA-Review 2011-052, 231 Pages, 2012/02

JAEA-Review-2011-052.pdf:17.77MB

JAEA conducts research and development (R&D) in various fields related to nuclear power as a comprehensive institution of nuclear energy R&Ds, and utilizes computational science and technology in many activities. In March 2010, CCSE introduced the nation's largest system and started operations to meet growing demand of calculation. Although the performance of new system is 14 times higher than that of old system, the utilization of new system reached 90% in the first three days, bearing out the strong demand of calculation in JAEA. This report presents a great amount of R&D results accomplished by using the system in its the first year of operation (FY2010), as well as user support structure, operational records and overviews of the system, and so on.

JAEA Reports

Annual report of Department of Research Reactor and Tandem Accelerator, JFY2010; Operation, utilization and technical development of JRR-3, JRR-4, NSRR and Tandem Accelerator

Department of Research Reactor and Tandem Accelerator

JAEA-Review 2011-053, 234 Pages, 2012/03

JAEA-Review-2011-053.pdf:8.94MB

The Department of Research Reactors and Tandem Accelerator is in charge of the operation, utilization and technical development of JRR-3, JRR-4, NSRR and Tandem Accelerator. This report is a summary of technical developments of The Department of Research Reactors and Tandem Accelerator in 2010.

JAEA Reports

Annual report of JMTR FY2010

Department of JMTR Operation

JAEA-Review 2011-054, 30 Pages, 2012/03

JAEA-Review-2011-054.pdf:2.25MB

Refurbishment works of the JMTR was carried out in plans from FY2007 to FY2010 and finished all refurbishment work on schedule in this year. Regarding the management and operation of the JMTR, the periodical inspection of facilities based on the law, maintenance and partial renewal works of facilities were carried out, and the fabrication of the fuel for restart has been carried out. As for the management and operation of irradiation facilities, maintenance and partial renewal works of facilities were also carried out. In the hot laboratory, voluntary periodical inspection, maintenance and post-irradiation examinations of irradiated materials were carried out. As for the radiation control at the JMTR facility, irradiation facility and hot laboratory facility, the limit of the radiation exposure dose defined by the safety regulation works were carried out safely under far below. This report describes the FY2010 activities on above mentions.

JAEA Reports

Annual report of Nuclear Human Resource Development Center (April 1, 2010 - March 31, 2011)

Nuclear Human Resource Development Center

JAEA-Review 2011-055, 73 Pages, 2012/03

JAEA-Review-2011-055.pdf:3.36MB

This annual report summarizes the activities of Nuclear Human Resource Development Center (NuHRDeC) of Japan Atomic Energy Agency (JAEA) in the fiscal year 2010. In this fiscal year, NuHRDeC flexibly designed and conducted new training courses upon requests while conducting the annually scheduled training programs, and actively enhanced the collaboration with academia and cooperation with international organizations.

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