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Department of Radiation Protection, Nuclear Science Research Institute; Safety Section, Department of Administrative Services, Takasaki Advanced Radiation Research Institut; Safety Section, Department of Administrative Services, Kansai Photon Science Institute; Operation Safety Administration Section, Mutsu Office, Aomori Research and Development Center; Safety Section, Department of Administrative Services, Naka Fusion Institute
JAEA-Review 2012-001, 181 Pages, 2012/03
JAEA-Review-2012-001.pdf:5.26MB
This annual report describes the activities of Radiation Protection Sector in Department of Radiation Protection in Nuclear Science Research Institute, Safety Section in Takasaki Advanced Radiation Research Institute, Safety Section in Kansai Photon Science Institute, Operation Safety Administration Section in Aomori Research and Development Center and Safety Section in Naka Fusion Institute.
Aoki, Yoshikazu
JAEA-Review 2012-002, 411 Pages, 2014/01
JAEA-Review-2012-002.pdf:35.22MB
The activities of Safety Administration Department covers many fields in Nuclear Fuel Cycle Engineering Laboratories such as the management of the occupational safety and health, the crisis management, the security, and the management of a quality assurance. This report is the summary of the activities of Safety Administration Department since April, 2010 unitel March, 2011.
Itabashi, Keizo
JAEA-Review 2012-003, 52 Pages, 2012/03
JAEA-Review-2012-003.pdf:2.61MB
The history and library statistics of the Japan Atomic Energy Agency library activity were summarized. Former Japan Atomic Energy Research Institute and the former Japan Nuclear Cycle Development Institute merged in October, 2005, and Japan Atomic Energy Agency is established. Properly speaking, the library statistics of old two corporations should have been summarized, but statistics of the Japan Nuclear Cycle Development Institute is not yet obtained. Then, although it is stated as the Japan Atomic Energy Agency library, it limits to the description about the old Japan Atomic Energy Research Institute library, before 2004.
Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru
JAEA-Review 2012-004, 20 Pages, 2012/03
JAEA-Review-2012-004.pdf:1.57MB
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 2010. 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.
Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru
JAEA-Review 2012-005, 44 Pages, 2012/03
JAEA-Review-2012-005.pdf:3.86MB
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 2010. 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.
Sumiya, Shuichi; Watanabe, Hitoshi; Nakano, Masanao; Fujita, Hiroki; Kono, Takahiko; Hiyama, Yoshinori; Yoshii, Hideki*; Kikuchi, Masaaki*; Otani, Kazunori*; Goto, Ichiro*
JAEA-Review 2012-006, 114 Pages, 2012/03
JAEA-Review-2012-006.pdf:3.36MB
Based on the regulations (the safety regulation of Tokai reprocessing plant, the safety regulation of nuclear fuel material usage facilities, the radiation safety rule, the regulation about prevention from radiation hazards due to radioisotopes, which are related with the nuclear regulatory acts, and the local agreement concerning with safety and environment conservation around nuclear facilities, the water pollution control law, and byelaw of Ibaraki prefecture), this report describes the effluent control results of liquid waste discharged from the JAEA's Nuclear Fuel Cycle Engineering Laboratories in the fiscal year 2010, from 1st April 2010 to 31st March 2011. In this period, the concentrations and the quantities of the radioactivity in liquid waste discharged from the reprocessing plant, the plutonium fuel fabrication facilities, and the other facilities were much lower than the authorized limits of the above regulations.
Yamamoto, Masahiro; Kato, Chiaki; Sato, Tomonori; Nakano, Junichi; Ugachi, Hirokazu; Tsukada, Takashi; Kaji, Yoshiyuki; Tsujikawa, Shigeo*; Hattori, Shigeo*; Yoshii, Tsuguyasu*; et al.
JAEA-Review 2012-007, 404 Pages, 2012/03
JAEA-Review-2012-007.pdf:36.72MB
There are many LWRs which have been operated for more than 20 years in Japan and it is expected that technique corresponding to aging plants are necessary established for safety operation in LWRs. A lot of troubles related to SCC are reported and many investigations are concerned with SCC mechanism and technical evaluation. In this paper, those research data were collected as possible widely and reviewed systematically. Current circumstances concerned with SCC in LWRs were reviewed specifically as follows: SCC incidents, SCC evaluation methods for crack initiation and propagation, the investigations concerned with SCC mechanism and monitoring technique for corrosive environment. Influences with reactor types (BWR, PWR), materials (stainless steels, Ni alloys) and SCC evaluating methods (laboratories and actual plants) were summarized as graphs and tables easy to understand in common/difference points concerned with SCC. From these arranged results, future themes were considered and remarked SCC phenomenon was summarized in actual plants. As for SCC evaluations under the accelerate conditions in the laboratory test, it was suggested that a computational prediction and modeling including statistical technique and microscopic analysis in crack initiation were important. Furthermore it was suggested that monitoring techniques predicting SCC initiation and grasping plant circumstance in operation and feasibility in actual plants were important.
Y extracted from high radioactive liquid waste in spent-fuel reprocessingHosoma, Takashi
JAEA-Review 2012-008, 83 Pages, 2012/07
JAEA-Review-2012-008.pdf:17.56MB
Pharmaceuticals and medical devices containing radioactive Y are realized, approved and placed on the international market where three products are available in Europe and the United States, and one product in Japan. These products are used not for diagnosis but for treatment by internal irradiation. It was estimated from the deliberative report of the approval in Japan that Y was extracted in Europe from high radioactive liquid waste (HALW) yielded in spent fuel reprocessing. In this report, products placed on the market and physical properties were reviewed, reasons of the realization and conditions to realize succeeding products were estimated, extraction method was compared with other methods, technical subjects, and relevant regulations were investigated. Although a medical device containing radioactive Y has been studied in Japan and one pharmaceutical product was approved, a breakthrough would be necessary to put Y utilization beyond alternative treatments. The breakthrough would become be promising; for example, if conventional treatments could be supported by technical development to deliver Y more sharply to the target with shorter serum half-life. Extraction of Y nuclide from HALW has advantages over thermal neutron irradiation of natural nuclide, a system is envisioned where Sr as a parent nuclide is separated in the reprocessing then transported to and stored in a factory of radiopharmaceuticals followed by Y extraction on demand.
Tobita, Kenji
JAEA-Review 2012-009, 62 Pages, 2012/04
JAEA-Review-2012-009.pdf:10.35MB
The JMTR refurbishment started from FY2007 had been completed on the end of the FY2010. The refurbishment works carried out on about 60 items nuclear reactor systems, about 40 of facilities and about 20 constructions with no trouble. This report review the basic policy of JMTR refurbishment, such as a selection of facilities/equipments for the refurbishment and the determination method of specifications for repairs. The deliberation and discussion by the safety review committee of Oarai Research and Development Center in the Japan Atomic Energy Agency and nuclear regulatory procedure are included in this report.
Onoue, Ryuji; Kawamata, Takanori; Otsuka, Kaoru; Sekine, Katsunori; Koike, Sumio; Gorai, Shigeru; Nishiyama, Yutaka; Fukasaku, Akitomi
JAEA-Review 2012-010, 116 Pages, 2012/03
JAEA-Review-2012-010-01.pdf:65.41MBJAEA-Review-2012-010-02.pdf:81.33MBJAEA-Review-2012-010-03.pdf:87.98MBJAEA-Review-2012-010-04.pdf:45.25MB
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 is decided to refurbish the JMTR as an important fundamental infrastructure to promote the nuclear research and development. And The JMTR refurbishment work is carried out for 4 years from 2007. Before refurbishment work, from August 2006 to March 2007, all concerned renewal facilities were selected from evaluation on their damage and wear in terms of aging. Facilities which replacement parts are no longer manufactured or not likely to be manufactured continuously in near future, are selected as renewal ones. Replace 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.
Kameyama, Yasuhiko; Yanai, Tomohiro; Sugaya, Naoto; Kusunoki, Hidehiko; Sato, Shinichi; Fukasaku, Akitomi
JAEA-Review 2012-011, 35 Pages, 2012/03
JAEA-Review-2012-011.pdf:4.8MB
The Japan materials testing reactor (here-in-after "JMTR") was used for irradiation experimental facility such as fuels and materials for commercial reactor. And the JMTR renewal work was started in 2006 and was completed in 2011. In this report, a part of renewal work for (1) freezer and its accompanying pipe and electricity facilities which the purpose of humidification and air-conditioning in the reactor and hot laboratory building, (2) boiler and its accompanying facilities which the purpose of humidification and heating in the reactor, hot laboratory and Alpha Gamma Facility (AGF) is summarized.
Imaizumi, Tomomi; Takemoto, Noriyuki; Izumo, Hironobu; Ide, Hiroshi; Matsui, Yoshinori; Sozawa, Shizuo; Hori, Naohiko
JAEA-Review 2012-012, 25 Pages, 2012/03
JAEA-Review-2012-012.pdf:4.21MB
A training course using JMTR and the related facilities was newly organized for domestic students and young engineers from FY 2010 from a viewpoint of nuclear Human Resource Development (HRD) in order to support global expansion of nuclear power industry. In FY2010, preparation for the training course was curried out and the 1st training course was held on February 14 to 25, 2011 with ten domestic students as a trainie. In this training course, mainly carried out was practical training of neutronic calculation for an irradiation test about the hydraulic rabbit irradiation facility which is one of the irradiation facilities in the JMTR. This report summarizes outline of training course using cutting-edge research infrastructure JMTR and the related facilities and result of the 1st training course.
Watahiki, Shunsuke; Hanawa, Yoshio; Asano, Norikazu; Hiyama, Kazuhisa; Ito, Sachito; Tsuboi, Kazuaki; Fukasaku, Akitomi
JAEA-Review 2012-013, 92 Pages, 2012/03
JAEA-Review-2012-013.pdf:6.74MB
This replacement work was carried out under refurbishment plan of JMTR for beryllium distortion draw to acceptable limit. And gamma-ray shield refurbishment was carried out the view point of prevention maintenance in consideration of operation plan. Fabrication of beryllium frame and gamma-ray shield was spent for two years it was finished in February, 2010. It took five months to replacement work from January 2010. In this report is presented fabrication and replacement work of beryllium frame and gamma-ray shield.
Asano, Norikazu; Hanakawa, Hiroki; Kusunoki, Hidehiko; Sato, Shinichi
JAEA-Review 2012-014, 37 Pages, 2012/05
JAEA-Review-2012-014.pdf:18.39MB
In the refurbishment of JMTR, facilities were classified into which (1) were all updated, (2) were partly updated, and (3) were continuance used by the considerations of the maintenance history, the change parts availability and the latest technology. The JMTR pure water facility was classified into all updated facility based on the consideration. The Update construction was conducted in between FY2007 and FY2008. The refurbishment of JMTR pure water facility is summarized in this report.
Sumiya, Shuichi; Watanabe, Hitoshi; Nakano, Masanao; Takeyasu, Masanori; Nakada, Akira; Fujita, Hiroki; Isozaki, Tokuju; Morisawa, Masato; Mizutani, Tomoko; Kokubun, Yuji; et al.
JAEA-Review 2012-015, 166 Pages, 2012/05
JAEA-Review-2012-015.pdf:3.53MB
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 2010 to March 2011. In this report, some data include the influence of the accidental release from the Fukushima Daiichi Nuclear Power Plant on Tokyo Electric Power Co. in 2011 March. Appendices present comprehensive information, such as monitoring program, monitoring methods, monitoring results and their trends, meteorological data and discharged radioactive wastes. In addition, the data exceeded the normal range of fluctuation by the accidental release was evaluated in the appendices.
Mine and Laboratories Section, Tono Geoscience Center
JAEA-Review 2012-016, 196 Pages, 2012/05
JAEA-Review-2012-016.pdf:67.25MB
The technical committee was organized for examination of validity of the dose assessment associated with closure activity of the Tono Mine in FY2010. This report summaries the material presented and minutes at each meeting.
Tanno, Takeo; Hikima, Ryoichi; Sanada, Hiroyuki; Matsui, Hiroya; Sato, Toshinori
JAEA-Review 2012-017, 61 Pages, 2012/06
JAEA-Review-2012-017.pdf:12.26MB
Japan Atomic Energy Agency at Tono Geoscience Center is carrying out geoscientific research in the crystalline rock environment at the Mizunami Underground Research Laboratory, in order to establish the scientific and technological basis for geological disposal of HLW. The geoscientific research at the MIU is being carried out in three overlapping phases; the Surface-based Investigation Phase (Phase I), the Construction Phase (Phase II) and the Operation Phase (Phase III). This report presents the following FY2010 activities. (1) 
Stress Measurements using Core-based Methods on the -300 m Stage, (2) Determining the rock properties using waste rock from exacavation of the ventilation shaft, (3) Development of rock mechanical model (4) Study on the modeling based on equivalent continuum model, (5) Phenomenological study on long-term behavior, (6) Theoretical study for estimating long-term behavior, (7) Example overseas research for planning of 
experiments in Phase III, (8) Application of specific energy for evaluation of rock mass properties, (9) Study on estimation of rock stress with results of various measurements
Hanakawa, Hiroki
JAEA-Review 2012-018, 51 Pages, 2012/06
JAEA-Review-2012-018.pdf:4.24MB
Halden Boiling Water Reactor (HBWR) in Norway, which is operated by IFE, is the one of the best research reactor for nuclear fuel and material testing in the world. The irradiation test in nuclear fuel and materials has been carried out since the first criticality in 1959. Recent joint program tests are summarized based on open literatures.
Ouchi, Masaru; Takebe, Shinichi; Kawatsuma, Shinji; Fukushima, Tadashi*
JAEA-Review 2012-019, 186 Pages, 2013/02
JAEA-Review-2012-019.pdf:11.86MB
We have reviewed information about justification for establishing uranium bearing waste acceptance for near surface disposal (trench and concrete pit disposals) in foreign countries, to intend to discuss clearance level and disposal of uranium bearing waste in Japan. Most of EU countries have adopted the unconditional clearance level 1 Bq/g described in EU Guidance RP 122 Part 1 and IAEA Safety Guide RS-G-1.7 for uranium wastes. And in the case of special landfill burial, the conditional clearance level about 10 Bq/g (equivalent to exemption level) has been adopted in Germany, Sweden and UK.
Kunimaru, Takanori; Mikake, Shinichiro; Nishio, Kazuhisa; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Ishibashi, Masayuki; Ueno, Takashi; Tokuyasu, Shingo; Daimaru, Shuji; Takeuchi, Ryuji; et al.
JAEA-Review 2012-020, 178 Pages, 2012/06
JAEA-Review-2012-020.pdf:33.16MB
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). The MIU Project has three overlapping phases: Surface-based Investigation phase (Phase I), Construction phase (Phase II), and Operation phase (Phase III). The MIU Project has been ongoing the Phase II. And Phase III started in 2010 fiscal year. This report shows the results of the investigation, construction and collaboration studies in fiscal year 2010, as a part of the Phase II based on the MIU Master Plan updated in 2002.
Tazaki, Makiko; Suda, Kazunori; Suzuki, Mitsutoshi; Kuno, Yusuke; Mochiji, Toshiro
JAEA-Review 2012-021, 83 Pages, 2012/06
JAEA-Review-2012-021.pdf:8.17MB
The Japan Atomic Energy Agency (JAEA) held "2011 International Forum on the Peaceful Use of Nuclear Energy and Nuclear Security; Taking the lessons learned from Fukushima Daiichi Nuclear Power Plant accident to the 2012 Seoul Nuclear Security Summit" on 8 and 9 December, 2011. It intended to articulate effective strategies and measures for strengthening nuclear security using lessons learned from the Fukushima nuclear accident. Moreover, it was expected to explore comprehensive approaches which could contribute to enhancing both nuclear safety and security in order to support sustainable and appropriate development of the peaceful use of nuclear energy. This report includes abstracts of keynote speeches, summary of panel discussions and materials of the presentations in the forum.
Nuclear Science Research Institute
JAEA-Review 2012-022, 208 Pages, 2012/07
JAEA-Review-2012-022.pdf:6.89MB
Nuclear Science Research Institute (NSRI) is composed of Planning and Coordination Office and seven departments such as Department of Operational Safety Administration, Department of Radiation Protection, Department of Research Reactor and Tandem Accelerator, Department of Hot Laboratories and Facilities, Department of Criticality and Fuel Cycle Research Facilities, Department of Decommissioning and Waste Management, and Engineering Services Department. This annual report of JFY 2009 & JFY 2010 summarizes the activities of NSRI, the R&D activities of the Research and Development Directorates and human resources development at site, and is expected to be referred to and utilized by R&D departments and project promotion sectors at NSRI site for the enhancement of their own research and management activities to attain their goals according to "Middle-term Plan" successfully and effectively.
Nakayama, Masashi; Sawada, Sumiyuki
JAEA-Review 2012-023, 24 Pages, 2012/06
JAEA-Review-2012-023.pdf:15.83MB
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 350 m 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 about 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 2012 fiscal year (2012/2013). In the 2012 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.
Asamori, Koichi; Niwa, Masakazu; Hanamuro, Takahiro; Yamada, Kunimi; Kusano, Tomohiro; Makuuchi, Ayumu; Takatori, Ryoichi; Kokubu, Yoko; Ishimaru, Tsuneari; Umeda, Koji
JAEA-Review 2012-024, 44 Pages, 2012/07
JAEA-Review-2012-024.pdf:1.29MB
The concept of geological disposal of HLW in Japan is based on a multi-barrier system which combines a stable geological environment with a robust 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) on geosphere stability for long-term isolation of HLW in JAEA, in fiscal year 2012. The objectives and contents in fiscal year 2012 are described in detail based on the outline of 5 years plan (fiscal years 2010-2014). In addition, the planed 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.
Kutsuna, Hideki; Otani, Hiroshi; Nakamura, Yasuyuki
JAEA-Review 2012-025, 30 Pages, 2012/07
JAEA-Review-2012-025.pdf:12.45MB
Fugen Nuclear Power Plant was reorganized to Fugen Decommissioning Engineering Center and started dismantling removal work of the facilities on February 12, 2008. 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", "Basic Test for Making Waste Body for Spent Resin disposal", "Current Status and Future Plan on Laser Cutting Method", presented in the 25th Technical special committee on Fugen decommissioning which was held on March 16, 2012.
Geoscience Facility Construction Section, Tono Geoscience Center
JAEA-Review 2012-026, 252 Pages, 2012/08
JAEA-Review-2012-026.pdf:45.46MB
This progress report presents an outline compilation of construction activities, primary tasks performed, construction progress and problems reported from fiscal year 2002 to fiscal year 2005 (including a part fiscal year 2006). The outline of construction activities is a summary based on the scope of work planned. The main activities are based on the Tono Geoscience Center weekly reports. The construction progress is based on the planned and actual schedules and the Tono Geoscience Center weekly reports. The problems reported are based on accident reports, natural disasters, nonconformance and defects recorded by the Geoscience Facility Construction Section. Plan and actual performance of the MIU construction project No.1 (completion on June 30, 2006) are described in this report.
Seguchi, Tadao*; Tamura, Kiyotoshi; Kudo, Hisaaki*; Shimada, Akihiko; Sugimoto, Masaki; Idesaki, Akira; Oshima, Takeshi; Yoshikawa, Masahito
JAEA-Review 2012-027, 46 Pages, 2012/08
JAEA-Review-2012-027.pdf:5.87MB
The research on cable degradation mechanisms was conducted for 5 years in 2006 - 2010 as the project research of plant life management for nuclear power plant by NISA (Nuclear and Industrial Safety Agency) of METI (Ministry of Economy, Trade, and Industry). At the finish of above research, the degradation mechanisms were reviewed on the analysis of many reports on cable degradation. The reports published after 1970 were mainly surveyed and the facts or data containing the experimental accuracy were selected. The verified facts, the reasonable interpretation of the facts, unresolved aspects were checked on the view points of recent techniques or analysis, and proposed the new model of degradation mechanisms was proposed.
Kunimaru, Takanori; Mikake, Shinichiro; Nishio, Kazuhisa; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Ishibashi, Masayuki; Kuboshima, Koji; Takeuchi, Ryuji; Mizuno, Takashi; Sato, Toshinori; et al.
JAEA-Review 2012-028, 31 Pages, 2012/08
JAEA-Review-2012-028.pdf:3.86MB
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). The MIU project is planned in three overlapping phases; Surface-based Investigation Phase (Phase I), Construction Phase (Phase II) and Operation Phase (Phase III). Currently, the project is under the Construction Phase and the Operation Phase. This document introduces the research and development activities planned for 2012 fiscal year based on the MIU Master Plan updated in 2010, construction plan and research collaboration plan, etc.
Shamoto, Shinichi; Kodama, Katsuaki
JAEA-Review 2012-029, 264 Pages, 2012/08
JAEA-Review-2012-029.pdf:50.76MB
Characteristic technologies, instruments, and distinguished researches of each institute about "Superconductivity, Magnetism and Phonon" are introduced and discussed on the basis of "Joint Research Agreement for the Pioneering R&D with Quantum Beam Technology" concluded by NIMS, RIKEN and JAEA 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.
) Method; March 9-10, 2012, Yurakucho Asahi Hall, Tokyo, JapanIshitsuka, Etsuo; Ishihara, Masahiro; Suzuki, Masahide
JAEA-Review 2012-030, 247 Pages, 2012/07
JAEA-Review-2012-030.pdf:21.51MB
This report summarizes the documents presented in the Specialist Meeting on 
Mo Production by (n,) Method, which was held on March 9 to 10, 2012, at the Yurakucho Asahi Hall in Tokyo, hosted by Japan Atomic Energy Agency. The objective of the meeting is to exchange the information of current status, future plan for the Mo production, and to make a discussion of "How to cooperate" in each research and test reactors. There were 27 participants from Poland, Kazakhstan, Indonesia, Thailand, Malaysia, Netherlands, Korea and Japan. As a result of this meeting, it was recognized that to push forward the development of Mo production by (n,) method is necessary for the future steady supply of Mo. Moreover, an irradiation test using the high density MoO
pellet developed by the Japan Atomic Energy Agency was proposed from a viewpoint of a merit for the common irradiation target in each research and test reactors.
Research Cooperation Section
JAEA-Review 2012-031, 139 Pages, 2012/08
JAEA-Review-2012-031.pdf:13.96MB
This report includes a summary of the results of the research carried out in fiscal year 2011 on 27 research collaboration subjects for preceding basic engineering research related to fast breeder reactors, the nuclear fuel cycle, radiation safety and geological disposal/geoscience.
Fast Breeder Reactor Research and Development Center, Tsuruga Head Office
JAEA-Review 2012-032, 187 Pages, 2012/08
JAEA-Review-2012-032.pdf:18.08MB
FBR Monju has been accumulated technological achievements, for our country of FBR cycle technology, through the experience of daily operation, maintenance, etc.
Katagiri, Hiromi; Okuno, Hiroshi; Okamoto, Akiko; Ikeda, Takeshi; Tamura, Kenichi; Nagakura, Tomohiro; Nakanishi, Chika; Yamamoto, Kazuya; Abe, Minako; Sato, Sohei; et al.
JAEA-Review 2012-033, 70 Pages, 2012/08
JAEA-Review-2012-033.pdf:6.38MB
When a nuclear emergency occurs in Japan, JAEA has the responsibility of providing technical support to the National government, local governments, etc., by the Basic Law on Emergency Preparedness and the Basic Plan for Disaster Countermeasures. NEAT of JAEA gives technical advice and information, dispatch specialists as required, supplies with the National Government and local governments emergency equipment and materials. NEAT provides various lectures and training courses concerning nuclear disaster prevention for emergency response organizations at normal time. Concerning the assistance to the Accident of Fukushima No.1 Nuclear Power Station caused by the Great East Japan Earthquake on 11 March, 2011, JAEA assisted activities including environmental radiation monitoring, environmental radioactivity analyses, resident public consulting etc., with its the utmost effort. This annual report summarized these activities of NEAT in the fiscal year 2011.
Engineering Services Department
JAEA-Review 2012-034, 120 Pages, 2012/09
JAEA-Review-2012-034.pdf:7.65MB
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 2010. In addition the activities of measure of the East Japan Great Earthquake Disaster that occurred on March 11 has been written. We hope that this report may help to future work.
Nakayama, Masashi; Amano, Kenji; Tokiwa, Tetsuya; Yamamoto, Yoichi; Oyama, Takuya; Amano, Yuki; Murakami, Hiroaki; Inagaki, Daisuke; Tsusaka, Kimikazu; Kondo, Keiji; et al.
JAEA-Review 2012-035, 63 Pages, 2012/09
JAEA-Review-2012-035.pdf:12.23MB
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 2011 fiscal year (2011/2012). 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 2011 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.
Nagame, Yuichiro
JAEA-Review 2012-036, 27 Pages, 2012/10
JAEA-Review-2012-036.pdf:2.11MB
The summaries of the 5 research projects conducted through the Reimei Research Program are published for the growth and development of the new researches.
Department of HTTR
JAEA-Review 2012-037, 80 Pages, 2012/12
JAEA-Review-2012-037.pdf:16.02MB
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. The HTTR is a graphite-moderated and helium gas-cooled reactor with 30 MW of thermal power. In fiscal year 2011, planed operations and maintenance was disturbed by the 2011 off the Pacific coast of Tohoku Earthquake and the operation and maintenance plans were revised. The certification evaluation of the nuclear facilities after the earthquake was carried comprehensively out with the equipment inspections and the seismic response analysis. This report summarizes activities and results of HTTR operation, maintenance, and several R&Ds, which were carried out in the fiscal year 2011.
Geoscience Facility Construction Section, Tono Geoscience Center
JAEA-Review 2012-038, 235 Pages, 2012/12
JAEA-Review-2012-038.pdf:23.37MB
This progress report presents an outline compilation of construction activities, primary tasks performed, construction progress and problems reported in Fiscal Year 2006. The outline of construction activities is a summary based on the scope of work planned in 2006. The main activities are based on the Tono Geoscience Center weekly reports. The construction progress is based on the planned and actual schedules and the Tono Geoscience Center weekly reports. The problems reported are based on accident reports, natural disasters, nonconformance and defects recorded by the safety manager of the Geoscience Facility Construction Section. Construction plan of the MIU construction project No.2 (started on July 1, 2006) is described in this report. Regarding the plan and actual performance of MIU construction project No.1 (completed on June 30, 2006), it is described in "Construction Progress Report from Fiscal Year 2002 to Fiscal Year 2005 (including a part of Fiscal Year 2006)".
FBR Plant Engineering Center
JAEA-Review 2012-039, 56 Pages, 2012/11
JAEA-Review-2012-039.pdf:10.59MB
This annual report was compiled for research activities of FBR Plant Engineering Center of early 2011.
Kutsuna, Hideki; Koda, Yuya; Shibahara, Yuji; Kadowaki, Haruhiko
JAEA-Review 2012-040, 36 Pages, 2013/01
JAEA-Review-2012-040.pdf:8.2MB
Fugen Decommissioning Engineering Center is establishing "Technical special committee on Fugen decommissioning" which consists of the members well-informed, 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 "The Current Situation of Fugen Decommissioning", "The Application Results of Various Cutting Methods in the Dismantling of the Equipments of the Turbine System", "Study of Work Program on the Dismantling Activities with the Project Management Data Evaluation System", "Record and Knowledge in Working for a Heavy Water Withdraw and a Tritium Removal", presented in the 26th Technical special committee on Fugen decommissioning which was held on September 13, 2012.
Department of Radiation Protection, Nuclear Science Research Institute; Safety Section, Department of Administrative Services, Takasaki Advanced Radiation Research Institut; Safety Section, Department of Administrative Services, Kansai Photon Science Institute; Operation Safety Administration Section, Mutsu Office, Aomori Research and Development Center; Safety Section, Department of Administrative Services, Naka Fusion Institute
JAEA-Review 2012-041, 181 Pages, 2013/01
JAEA-Review-2012-041.pdf:6.04MB
This annual report describes the activities of Radiation Protection Sector in Department of Radiation Protection in Nuclear Science Research Institute, Safety Section in Takasaki Advanced Radiation Research Institute, Safety Section in Kansai Photon Science Institute, Operation Safety Administration Section in Aomori Research and Development Center and Safety Section in Naka Fusion Institute.
Information Technology Systems' Management and Operating Office
JAEA-Review 2012-042, 259 Pages, 2013/01
JAEA-Review-2012-042.pdf:23.73MB
Japan Atomic Energy Agency (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. As more than 20% of papers published by JAEA are concerned with R&D using computational science, the supercomputer system of JAEA has become an important infrastructure to support computational science and technology utilization. In FY2011, the system was used for analyses of the accident at the Fukushima Daiichi Nuclear Power Station and establishment of radioactive decontamination plan, as well as the JAEA's major projects such as Fast Reactor Cycle System, Fusion R&D and Quantum Beam Science. This report presents a great amount of R&D results accomplished by using the system in FY2011, as well as user support structure, operational records and overviews of the system, and so on.
Sugawara, Takanori
JAEA-Review 2012-043, 181 Pages, 2012/11
JAEA-Review-2012-043.pdf:26.88MB
The International Symposium on "Future of Accelerator-Driven System" was held on 29th February, 2012 at Gakushi-Kaikan, Tokyo, Japan hosted by Nuclear Science and Engineering Directorate, JAEA (Japan Atomic Energy Agency) and J-PARC (Japan Proton Accelerator Research Complex) Center. The objectives of the symposium were to make participants acquainted with the current status and future plans for research and development of ADS in the world and to discuss an international collaboration for ADS and P&T (Partitioning and Transmutation) technology. About 100 scientists participated in the symposium from Belgium, China, France, India, Italy, Japan, Korea and Mongol. In the morning session, current R&D activities of ADS in Japan were reported. In the afternoon session, current R&D activities were reported from China, Korea, India, Belgium and EU. A panel discussion was taken place with regards to the international collaboration for ADS at the final session. Two keynote speakers presented their outlooks on the topics and seven panelists and audience discussed those topics.
Suzuki, Mitsutoshi; Iwabuchi, Junichi*; Kasai, Yoshimitsu*; Kuno, Yusuke; Mochiji, Toshiro
JAEA-Review 2012-044, 109 Pages, 2013/01
JAEA-Review-2012-044.pdf:6.71MB
JAEA has worked for the contribution to the world disarmament and nonproliferation through the United States and Russia cooperation on the excess weapon plutonium disposition from Russian as well as to acquire the basic data of the post irradiation test with the BN-600 and the vibropack MOX fuel fabrication technologies. To support the initiative of Japan government, JAEA has started the joint research activities with some of the Russian national laboratories under the MINATOM in 1999. Since then, JAEA has been involved into the demonstration experiment for the vibropack fuel irradiation with the BN-600 that was managed by the PESCO corp. under the contract with MEXT. The joint researches with Russian national laboratories and the demonstration studies on vibropac MOX fuel assemblies from 1999 to 2011 are surmmarized in this document.
Kurikami, Hiroshi; Yoshikawa, Hideki; Sasamoto, Hiroshi; Iijima, Kazuki; Zaima, Naoki; Munakata, Masahiro; Tokizawa, Takayuki; Nakayama, Shinichi
JAEA-Review 2012-045, 129 Pages, 2013/01
JAEA-Review-2012-045.pdf:15.94MB
This report shows the records of JAEA's investigation on dose rate reduction at the Fukushima University Junior High School and Kindergarten. The main outcomes are as follows. (1) experiments were performed to investigate intrusion depth of radiocesium in the soil. Based on the experiment, we proposed a countermeasure to reduce air dose rates. (2) The action we proposed allowed dose rate reduction to about one tenth to one twentieth at playgrounds. (3) Follow-up monitoring was performed after one year, and shows no obvious evidence of recontamination at the playgrounds. (4) Decontamination of a tree was tested. Radiocesium was accumulated around the root. By removing the soil, the air dose rate at about one-meter distance from the tree was decreased.
Kojima, Takuji
JAEA-Review 2012-046, 209 Pages, 2013/01
JAEA-Review-2012-046.pdf:16.28MB
JAEA Takasaki annual report 2011 describes research and development activities performed from April 1, 2011 to March 31, 2012 with Takasaki Ion Accelerators for Advanced Radiation Application (TIARA, four ion accelerators), and electron/-ray irradiation facilities (an electro accelerator and three 
Co -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 158 reports consisting of 150 research papers and 8 status reports on operation/maintenance of the irradiation facilities described above.
Aihara, Jun; Ueta, Shohei; Maekawa, Masaki; Kawasuso, Atsuo; Sawa, Kazuhiro
JAEA-Review 2012-047, 34 Pages, 2013/02
JAEA-Review-2012-047.pdf:19.96MB
From the year 2004 to 2008, the Japan Atomic Energy Agency (JAEA) carried out the R&Ds on ZrC-coating process involving up to 200 g per batch scale with reduced excess carbon by bromide process. It should be noted that too much excess carbon adversely affects the performance of the ZrC-coating layer. In this paper, the authors summarize some characteristics of the microstructures and positron annihilation spectroscopy (PAS) of ZrC layers fabricated in the above R&D with carbon to zirconium atomic ratio (C/Zr) and the effects of the heat treatment, that imitates the thermal history of the sintering process, on the above-mentioned characteristics, reported in some papers.
Task Group for Research Results Diffusion
JAEA-Review 2012-048, 83 Pages, 2013/02
JAEA-Review-2012-048.pdf:10.24MB
The missions of the Nuclear Safety Research Center (NSRC) are to support the nuclear safety improvement by providing research results and proper recommendation, and to be responsible for correct information diffusion to the public as the specialists of nuclear safety. As a part of actions to achieve these tasks, the meeting, Nuclear Safety Research Center Progress 2010, was held in Tokyo on January 14th, 2011, in order to present the latest safety research results and to collect opinions from participants on the researches and activities in the NSRC. This meeting was first held after the establishment of the Japan Atomic Energy Agency. Four oral presentations and poster sessions were made by active researchers and extensive discussions were conducted lively by approximately 100 participants from government agencies, universities, research institutes, utilities, manufacturers and so on. This report summarizes the presentations in the meeting and the questionnaire results.
Nishio, Kazuhisa; Shimada, Akiomi
JAEA-Review 2012-049, 99 Pages, 2013/02
JAEA-Review-2012-049.pdf:24.73MB
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 in Mizunami on November 14, 2012.
J-PARC Center, Radiation Safety Section, Safety Division
JAEA-Review 2012-050, 88 Pages, 2013/02
JAEA-Review-2012-050.pdf:12.44MB
This annual report describes the activities of radiation safety of Japan Proton Accelerator Research Complex (J-PARC) for FY 2011. The activities described are radiation protection in workplaces, environmental monitoring, individual monitoring, maintenance of monitoring instruments, and the technological developments of radiation protection. Occupational exposures have not exceeded the prescribed dose limit. No effluent releases were recorded exceeding the prescribed limits on the amount and concentration of radioactivity for gaseous release and liquid waste. J-PARC was suffered from the Great East Japan Earthquake and the accident at the Fukushima Daiichi Nuclear Power Plant. The report also covers the activities for the recovery of J-PARC and the environmental monitoring of radioactivity from the accident.
Geoscience Facility Construction Section, Tono Geoscience Center
JAEA-Review 2012-051, 184 Pages, 2013/02
JAEA-Review-2012-051.pdf:63.96MB
This progress report presents an outline compilation of construction activities, primary tasks performed, construction progress and problems reported, in fiscal year 2007. The outline of construction activities is a summary based on the scope of work planned in 2006. The main activities are based on the Tono Geoscience Center weekly reports and the construction progress is based on the planned and actual schedules and the Tono Geoscience Center weekly reports. The problems reported are based on accident reports, natural disasters, nonconformance and defects recorded by the Geoscience Facility Construction Section. Plan and actual performance of the MIU construction project No.2 (started on July 1, 2006 and completed on March 15, 2008) is described in this report.
Department of Research Reactor and Tandem Accelerator
JAEA-Review 2012-052, 192 Pages, 2013/03
JAEA-Review-2012-052.pdf:16.58MB
The Department of Research Reactors and Tandem Accelerator is in charge of the operation, utilization and technical development of JRR-3 (Japan Research Reactor No.3), JRR-4 (Japan Research Reactor No.4), NSRR (Nuclear Safety Research Reactor) and Tandem Accelerator. This annual report describes a summary of activities of services and technical developments carried out in the period between April 1, 2011 and March 31, 2012. The activities were categorized into six service/development fields: (1) Recovery from the Great East Japan Earthquake, (2) Operation and maintenance of research reactors and tandem accelerator, (3) Utilization of research reactors and tandem accelerator, (4) Upgrading of utilization techniques of research reactors and tandem accelerator, (5) Safety administration for research reactors and tandem accelerator, (6) International cooperation. Also contained are lists of publications, meetings, granted permissions on lows and regulations concerning atomic energy, number of staff members dispatched to Fukushima for the technical assistance, commendation, outcomes in service and technical developments and so on.
Environmental Management Section, Safety Administration Department
JAEA-Review 2012-053, 213 Pages, 2013/03
JAEA-Review-2012-053.pdf:7.85MB
In September, 2012 Japan Atomic Energy Agency published the Environmental Report 2012 concerning the activities of FY 2011 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 2011 as the base of the Environmental Report 2012. 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.
Committee for JAEA Internationalization Initiative
JAEA-Review 2012-054, 28 Pages, 2013/03
JAEA-Review-2012-054.pdf:1.71MB
In global circumstances surrounding nuclear energy, the role expected to Japan Atomic Energy Agency (JAEA) is becoming increasingly important. JAEA has been promoted an initiative for the international center of excellence in order to increase the scientific competitiveness of Japan and make international contributions, by gathering excellent researchers from the entire world with the latest facilities. Also, JAEA established "Committee for JAEA Internationalization Initiative", which will discuss issues such as environmental improvement for accepted foreigners, direction of efforts for the international center of excellence and strategies to improve current situation. This report mentions the results of the committee's discussion including current issues for the initiative and recommendations for their solution, as well as the issues to be discussed in order to enhance international awareness of JAEA staff.
Kimura, Nobuaki; Takemoto, Noriyuki; Ooka, Makoto; Ishitsuka, Etsuo; Nakatsuka, Toru; Ito, Haruhiko; Ishihara, Masahiro
JAEA-Review 2012-055, 40 Pages, 2013/03
JAEA-Review-2012-055.pdf:93.64MB
Training courses using JMTR and related facilities as advanced research infrastructures have been newly organized for domestic students, young researchers and engineers since FY2010 from a viewpoint of nuclear human resource development in order to support global expansion of nuclear power industry. In FY 2012, two courses were carried for foreign as well as Japanese young researchers and engineers in order to carry out effective practical training. For the foreigner course, 16 young researchers and engineers were joined from July 23rd to August 10th. For the Japanese course, total 35 young researchers and engineers were joined two courses from August 20th to August 31st and from September 3rd to September 14th. Lectures of these training courses were consisted from basics of nuclear energy to its application, especially for irradiation tests in Motrin this paper, results of these foreigners and Japanese training courses are reported.
Department of Hot Laboratories and Facilities
JAEA-Review 2012-056, 100 Pages, 2013/03
JAEA-Review-2012-056.pdf:14.89MB
This report describes the operation and management of eleven facilities under the Department of Hot Laboratories and Facilities during a fiscal year of 2011. 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 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. Since 2010, chemical analyses have been made by request at No.4 Research Laboratory, including maintenance of shared instruments and the technical assistance. In addition, the facility management was carried out of Research Hot Laboratory, 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.