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Nomi, Takayoshi; Nagatani, Taketeru; Ninagawa, Junichi; Nakajima, Shinji; Maruyama, Hajime; Asano, Takashi; Fujiwara, Shigeo
Kaku Busshitsu Kanri Gakkai (INMM) Nihon Shibu Dai-32-Kai Nenji Taikai Rombunshu (Internet), 8 Pages, 2011/11
The IS approach for the JNC-1 site was implemented in August 2008, and this was the first experience in the world. This IS approach aimed not only to improve efficiency and effectiveness of safeguards but also to reduce burden of the plant operation by improvement of efficiency of the inspection activity. It was planned to review effectiveness of this new approach after three years from implementation. And JAEA also evaluated effects by application of the IS approach for two MOX fuel facilities in the JNC-1 site based on the three years experiences from the operator's view point. As the result of evaluation, it was confirmed that there were some difference of benefits by application of the IS approach depending on features of the facility, automation level of equipment and advance level of safeguards systems.
Ninagawa, Junichi; Asano, Takashi; Nagatani, Taketeru; Nakajima, Shinji; Nomi, Takayoshi; Fujiwara, Shigeo
Proceedings of INMM 52nd Annual Meeting (CD-ROM), 8 Pages, 2011/07
Japan was transferred to the Integrated Safeguards (IS) scheme in September 2004. The IS approach for JNC-1 site, including PFPF, was developed to improve the efficiency of safeguards while maintaining the effectiveness and has been implemented since August 2008. JAEA has evaluated the validity of the IS approach for PFPF based on the historical performance over about three-year period. As the result of evaluation, JAEA confirmed the improvement of efficiency of inspection activities and the reduction of the impact of inspection activities on plant operation. On the other hand, the IAEA has also evaluated the validity of IS approach and considered to modify based on the result of its evaluation. In order to maintain or improve the validity of the IS approach, JAEA thinks that it will be necessary to work very closely and honestly with the inspectorate to address this modification process.
Ninagawa, Junichi; Asano, Takashi; Fujiwara, Shigeo; Takahashi, Saburo; Menlove, H.*; Rael, C. D.*; Nakajima, Shinji*; Sato, Takashi*
Kaku Busshitsu Kanri Gakkai (INMM) Nihon Shibu Dai-27-Kai Nenji Taikai Rombunshu (CD-ROM), 9 Pages, 2006/00
no abstracts in English
Ninagawa, Junichi; Takahashi, Saburo; Fujiwara, Shigeo; Asano, Takashi
45th Annual Meeting of the Institute of Nuclear Ma, 0 Pages, 2004/00
JNC has developed a Remote Monitoring System (RMS) for unattended mode NDA in corporation with Los Alamos National Laboratory (LANL) under a JNC/DOE safeguards cooperation agreement. The purpose of this development is to improve the efficiency of safeguards activities for both the operator and the inspectors, and to improve transparency of nuclear material management. As a result of the field trials, technical problems of the RMS have been mostly resolved. Therefore, the JNC is evaluating how the RMS may contribute to the efficiency of safeguards activities by step-by-step implementation of RMS to PFPF in near future. Extending the RMS into not only storage areas, but also fuel fabrication process areas, has the possibility of reduction of actual visits to the facility. There is also the possibility of reduction of impact on facility operations. This paper describes the plans of JNC and LANL for applying RMS at PFPF.
Ninagawa, Junichi; Takahashi, Saburo; ; ; *
Proceedings of 3rd NUCEF International Symposium (NUCEF 2001), 0 Pages, 2001/00
None
Ninagawa, Junichi; Takahashi, Saburo; Asano, Takashi; Maruyama, Hajime; Kobayashi, Shigeru*
P.149, (105), p.21 - 25, 1998/03
None
Asano, Takashi; Kobayashi, Hideo; ; ; Ninagawa, Junichi
Proceedings of INMM 38th Annual Meeting, 0 Pages, 1997/00
None
Yuri, Akiya; Shimizu, Yoshio; Suitsu, Yuichi; Murakami, Tatsutoshi; Ninagawa, Junichi
no journal, ,
no abstracts in English
Ninagawa, Junichi; Nagatani, Taketeru; Asano, Takashi; Fujiwara, Shigeo
no journal, ,
no abstracts in English
Ninagawa, Junichi; Nagatani, Taketeru; Asano, Takashi; Fujiwara, Shigeo
no journal, ,
Fully automated MOX fuel fabrication process was positively introduced at the PFPF to improve fuel production capability and to reduce personal radiation exposure which is caused by handling of large amount of plutonium. From the viewpoint of safeguards, some disadvantages were supposed by introduction of the automated process (e.g. difficulty of access to the nuclear material, etc.). Therefore, JAEA developed a concept of the safeguards approach for the PFPF so as to obtain compatibility of safeguards with facility operation from the early stage of design phase, and developed advance safeguards systems based on this results. Thus, efficiency and effectiveness of safeguards were improved with the minimum impact on the facility operation. Furthermore, these efforts contributed to the development of the Integrated Safeguards approach implemented to JNC-1 site on August 1st 2008. This paper shows experience and achievement on "safeguards by design" for the PFPF.
Suzuki, Hiromichi; Sato, Mitsuhiro; Taguchi, Yusuke; Kageyama, Tomio; Ninagawa, Junichi; Shiromo, Hideo
no journal, ,
Ensuring robust nuclear security measures are required for the facilities located Plutonium Fuel Development Center as one of licensees of nuclear facilities that have multiple category I facilities. In order to continuously ensure and strengthen nuclear security measures in those facilities, an active cultivation of nuclear security culture implemented by both entire organization and individual persons is vitally essential. Therefore, Plutonium Fuel Development Center has conducted various activities such as case-study education and training, yearly posters and patrolling the site by upper-level management that all employees hold a deep-rooted belief that there is a credible insider and outsider threat, and that nuclear security is important. These activities are conducted in order to establish the foundation of beliefs and attitudes of effective nuclear security culture. This report introduces our activities fostering nuclear security culture in Plutonium Fuel Development Center that the evaluation and the continuous improvement of bidirectional activities by both top-down from multiple management levels and bottom-up from individual employee.
Hashiba, Hiroya; Yuasa, Wataru; Ninagawa, Junichi; Hayashi, Akihiko; Sekita, Kazunori*; Mashiko, Takayuki*
no journal, ,
We have been conducting nuclear fuel transportation accident drills jointly with fire agencies since 2002. The purpose of these drills is to improve the capabilities to respond to nuclear fuel transportation accidents. By devising practical drills, we were able to strengthen our partnership with the fire agencies. We have also contributed to fire agencies improving their capabilities to respond to nuclear fuel transportation accidents. This report describes our efforts to improve accident response capabilities, including the details of the drill.
