Human resource development for decommissioning of JAEA's facilities

Takiya, Hiroaki

Genshiryoku Bakkuendo Kenkyu (CD-ROM), 30(2), p.66 - 71, 2023/12

https://nuce.aesj.or.jp/jnuce/vol30/jnuce-vol30-2-p66-71.pdf

A half of unclear facilities in Japan Atomic Energy Agency (JAEA) has been transferred to decommissioning phase because of achieving the expected goals for the research and development, aging of buildings and equipment, etc. JAEA must safely, efficiently, and rationally implement back-end measures related to decommissioning, from the dismantling of nuclear facilities to the processing and disposal of radioactive waste generated by dismantling. The decommissioning and radioactive waste management head office collaborates with each JAEA's site to plan and promote comprehensive back-end measures and promote near surface disposal of low-level radioactive waste generated from research, medical, and industrial facilities, and to work on research and development aimed at solving common issues related to back-end measures, human resource development, etc. Since decommissioning is a long-term project, it is important to secure specialized human resources for the future. This article presents a summary of human resource development for decommissioning.

ARKADIA; For the innovation of advanced nuclear reactor design

Ohshima, Hiroyuki; Asayama, Tai; Furukawa, Tomohiro; Tanaka, Masaaki; Uchibori, Akihiro; Takata, Takashi; Seki, Akiyuki; Enuma, Yasuhiro

Journal of Nuclear Engineering and Radiation Science, 9(2), p.025001_1 - 025001_12, 2023/04

https://doi.org/10.1115/1.4054726

This paper describes the outline and development plan for ARKADIA to transform advanced nuclear reactor design to meet expectations of a safe, economic, and sustainable carbon-free energy source. ARKADIA will realize Artificial Intelligence (AI)-aided integrated numerical analysis to offer the best possible solutions for the design and operation of a nuclear plant, including optimization of safety equipment. State-of-the-art numerical simulation technologies and a knowledge base that stores data and insights from past nuclear reactor development projects and R&D are integrated with AI. In the first phase of development, ARKADIA-Design and ARKADIA-Safety will be constructed individually, with the first target of sodium-cooled reactor. In a subsequent phase, everything will be integrated into a single entity applicable not only to advanced rectors with a variety of concepts, coolants, configurations, and output levels but also to existing light-water reactors.

Document collection of the 38th Technical Special Committee on Fugen Decommissioning

Sato, Yuji; Yamamoto, Kosuke; Taruta, Yasuyoshi

JAEA-Review 2021-024, 33 Pages, 2021/11

JAEA-Review-2021-024.pdf:5.2MB

"Fugen Decommissioning Engineering Center", in planning and carrying out our decommissioning technical development, organizes "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 domestic and international, as the central place in research and development base of Fukui prefecture, and to utilize the outcome in our decommissioning to the technical development effectively. This report consists of presentation materials "The current status of Fugen decommissioning", "Future measures based on clearance decontamination results" and "Fugen decommissioning knowledge management", presented in the 38th Technical Special Committee on Fugen Decommissioning which was held on March 15 to March 26, 2021.

Preface: Integration of knowledge on the radiological environment around the Fukushima Nuclear Power Plant site over a period of six years

Saito, Kimiaki; Onda, Yuichi*; Hisamatsu, Shunichi*

Journal of Environmental Radioactivity, 210, p.106003_1 - 106003_2, 2019/12

https://doi.org/10.1016/j.jenvrad.2019.106003

no abstracts in English

Adaptation for knowledge management to nuclear research fields

Taruta, Yasuyoshi; Yanagihara, Satoshi*; Iguchi, Yukihiro; Kitamura, Koichi; Tezuka, Masashi; Koda, Yuya

Chishiki Kyoso (Internet), 8, p.IV 2_1 - IV 2_12, 2018/08

no abstracts in English

Comprehensive evaluation system for environmental remediation of Fukushima; Toward integration of three components as a whole system

Saito, Hiroshi; Nozawa, Takashi; Takemiya, Hiroshi; Seki, Akiyuki; Matsubara, Takeshi; Saito, Kimiaki; Kitamura, Akihiro

JAEA-Review 2017-040, 34 Pages, 2018/03

JAEA-Review-2017-040.pdf:9.52MB

The accidents at Fukushima Daiichi Nuclear Power Station on March 11th 2011, released significant amount of radionuclide to the environment. It has migrated to the human habitation and raised concerns of possible effect on human health, and for that a lot of researches have been performed. JAEA created and opened "Database for Radioactive Substance Monitoring Data" for usage of obtained data. For accurate modelling and future forecast using numerical code and the data, "Supporting Environment for Processing Simulation Codes" has been operated. In addition, research results have been opened as Q&A style "Knowledge Base for Environmental Remediation" in JAEA's website. The "Comprehensive Evaluation System" composed of these components, should act more interrelated and integrated as one system. Besides, information dissemination is not enough to the outside. The report summarizes the current status, remaining issues and expected improvement of each component and the system.

Obtainable knowledge for materials from data-free-way; Method for description of knowledge obtained from fact database

Kaji, Yoshiyuki; Yoshida, Kenji*; Mashiko, Shinichi*; Fujita, Mitsutane*; Shimura, Kazuki*; Kinugawa, Junichi*; Tsuji, Hirokazu; Miyakawa, Shunichi*; Iwata, Shuichi*

Dai-38-Kai Joho Kagaku Gijutsu Kenkyu Shukai Happyo Yokoushu, p.43 - 47, 2001/00

A distributed database system named Data-Free-Way for advanced nuclear materials has been developed by the National Institute for Materials Science (NIMS), the Japan Atomic Energy Research Institute (JAERI), the Japan Nuclear Cycle Development Institute (JNC), and the Japan Science and Technology Corporation (JST) under a cooperative agreement. In this system, end-users are able to obtain necessary data such as tables or graphs, even if they do not know the sites in which the data are stored. A distributed knowledge database in which each organization makes the knowledge based on the retrieval results from fact database and end-users can get the knowledge, has been developed to make more useful utilization of this system. Though the retrieval results from the fact database were shown in the tables or graphs, the new system constitutes the information notes described the retrieval ones for the knowledge by XML. This paper describes the present status of the Data-Free-Way and the description method of XML for the retrieval results.

Research on advanced system safety assessment procedures (III)

Suzuki, Kazuhiko*; *

JNC TJ8400 2000-052, 136 Pages, 2000/02

JNC-TJ8400-2000-052.pdf:4.16MB

Though HAZOP is recognized as the useful safety assessment method, it requires a labor-intensive and time-consuming process. So recently computer-aided HAZOP has been proposed. The research report in 1999 (PNC TJ1400 99-003) presented HAZOP system based on the plant component malfunctions basic models. By using this basic model, not only state malfunction of component but also the consequence to external circumstance can be assessed. G2, which is an excellent object-oriented developer tool in GUI (Graphical User Interface), was used as a tool for developing the system. By using the graphical editor in the system, the user can carry out HAZOP easily. The purpose of this research is to improve the ability of the HAZOP system to obtain a more detailed HAZOP results. HAZOP is carried out according to the fault propagation of component level and the one of plant level based on plant component malfunctions basic models. Furthermore, the HAZOP system which can do the cause and effect analysis in detail intended for the component which processes two or more materials is developed. It is possible to carry out HAZOP for various plants by newly adding material information to the knowledgebase. We have applied this system to the Nuclear Reprocessing Facilities to demonstrate the utilities of developing system.

Data-Free-Way; Attempt at developing distributed database for nuclear materials

Kinugawa, Junichi*; Fujita, Mitsutane*; Noda, Tetsuji*; Tsuji, Hirokazu; Kaji, Yoshiyuki; Sakino, Takao*; Tachi, Yoshiaki*; Kaneda, Kenichiro*; Mashiko, Shinichi*; Shimura, Kazuki*; et al.

Proceedings of 9th German-Japanese Workshop on Chemical Information, p.134 - 135, 2000/00

no abstracts in English

Proceedings of International Symposium on Radiation Education (ISRE98)

JAERI-Conf 99-011, p.414 - 0, 1999/09

JAERI-Conf-99-011.pdf:33.13MB

no abstracts in English