Refine your search:     
Report No.
 - 
Search Results: Records 1-13 displayed on this page of 13
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Outline of decommissioning plan of Tokai Reprocessing Plant

Okano, Masanori; Akiyama, Kazuki; Taguchi, Katsuya; Nagasato, Yoshihiko; Omori, Eiichi

Dekomisshoningu Giho, (57), p.53 - 64, 2018/03

The construction of Tokai Reprocessing Plant (TRP) was initiated in June 1971, and its hot test using spent fuel started in September 1977. Thereafter TRP had been operated to reprocess 1,140 tons of spent fuel for approximately 30 years until May 2007, according to the reprocessing contract with domestic electric power companies. JAEA announced a policy of TRP in report of JAEA reform plan published in September 2014. The policy shows that TRP will shift to a decommissioning stage by economic reasons. Based on the policy, application of approval for TRP decommissioning plan was submitted to Nuclear Regulation Authority (NRA) in June 2017. This plan provides basic guidelines such as procedures for decommissioning and specific activities for risk reduction, and implementation divisions of decommissioning, management of spent fuels and radioactive wastes, decommissioning budget, and decommissioning schedule. The process of TRP decommissioning is planned to continue for approximately 70 years until the release of controlled areas of approximately 30 facilities.

JAEA Reports

The Second periodic safety review report of Tokai Reprocessing Plant

Shirai, Nobutoshi; Miura, Yasushi; Tachibana, Ikuya; Omori, Satoru; Wake, Junichi; Fukuda, Kazuhito; Nakano, Takafumi; Nagasato, Yoshihiko

JAEA-Technology 2016-007, 951 Pages, 2016/07

JAEA-Technology-2016-007-01.pdf:11.93MB
JAEA-Technology-2016-007-02.pdf:4.7MB

The periodic safety review of TRP is to confirm the safety activities and get effective additional measures the facility safety and its reliability. We implemented 4 items; for (1) evaluation of safety activity implementation, we confirmed we are adequately expanding its safety activities by the necessary documents and schemes. For (2) evaluation of status of safety activities reflecting the latest technical knowledges, we confirmed we reflect latest knowledges for improvement of safety and reliability. For (3) technical evaluation about aging degradation, we can keep the safety of the facilities important to safety and the sea discharge line, under assumption of the present maintenance, because of "focuses for aging degradation". For (4) planning measures about a 10-years-plan that the operator shall implement to keep the facility condition, by the technical evaluation, we found no additional safety plans into maintenance strategies.

JAEA Reports

The Periodic safety review report of Tokai Reprocessing Plant

Fukuda, Kazuhito; Tomioka, Kenichiro*; Omori, Satoru; Nakano, Takafumi; Nagasato, Yoshihiko

JAEA-Technology 2014-032, 566 Pages, 2014/11

JAEA-Technology-2014-032.pdf:32.45MB
JAEA-Technology-2014-032(errata).pdf:9.54MB

The Periodic Safety Review of TRP is assessment of the validity of safety activities in order to get assurance for continuous operation by adding effective items to extract and to execute for TRP safety. We performed 4 items; for (1) evaluation of safety activity at TRP, as we confirmed organization was ordered and managed. For (2) evaluation of status of safety activities reflecting the latest knowledge, we confirmed improvement of safety was continued adequately reflecting from the experience for safety. For (3) technical review on aging for the safety related structures, systems and components, we evaluated the guaranty of safety under assumption of continuous maintenance till the next Periodic Safety Review. For (4) establishment of long term maintenance program, we found no additional activities into maintenance programs, however, for several installations we established a plan and utilized them for reliability.

Journal Articles

Strategy on nuclear fuel reprocessing technologies for future deployment; After Fukushima Daiichi Accident

Nagasato, Yoshihiko

Nippon Genshiryoku Gakkai-Shi, 55(11), p.661 - 662, 2013/11

no abstracts in English

Oral presentation

Integrity check of Tokai Reprocessing Plant after the Tohoku Region Pacific Coast Earthquake, 3; Detailed checkup and comprehensive evaluation of installations in TRP

Fukuda, Kazuhito; Tomioka, Kenichiro*; Tachibana, Ikuya; Shirai, Nobutoshi; Kosaka, Ichiro; Nakano, Takafumi; Nagasato, Yoshihiko

no journal, , 

no abstracts in English

Oral presentation

Integrity check of Tokai Reprocessing Plant after the Tohoku Region Pacific Coast Earthquake, 1; Background and outline

Nakano, Takafumi; Fukuda, Kazuhito; Sato, Fuminori; Kosaka, Ichiro; Nagasato, Yoshihiko

no journal, , 

no abstracts in English

Oral presentation

Integrity check of Tokai Reprocessing Plant after the Tohoku Region Pacific Coast Earthquake, 5; Detailed checkup and comprehensive evaluation of buildings in TRP

Sato, Fuminori; Nakanishi, Ryuji; Kosaka, Ichiro; Nakano, Takafumi; Nagasato, Yoshihiko

no journal, , 

no abstracts in English

Oral presentation

Integrity check of Tokai Reprocessing Plant after the Tohoku Region Pacific Coast Earthquake, 2; Earthquake response analysis of installations in TRP

Koshino, Katsuhiko; Shirai, Nobutoshi; Sakaguchi, Shinobu; Shirozu, Hidetomo; Otaki, Miyuki*; Kosaka, Ichiro; Nakano, Takafumi; Nagasato, Yoshihiko; Tachibana, Ikuya

no journal, , 

no abstracts in English

Oral presentation

Integrity check of Tokai Reprocessing Plant after the Tohoku Region Pacific Coast Earthquake, 4; Earthquake response analysis of buildings in TRP

Nakanishi, Ryuji; Sato, Fuminori; Kosaka, Ichiro; Nakano, Takafumi; Nagasato, Yoshihiko

no journal, , 

no abstracts in English

Oral presentation

Decommissioning of Tokai Reprocessing Plant (TRP), 2; Approach to the decommissioning schedule

Akiyama, Kazuki; Taguchi, Katsuya; Nagasato, Yoshihiko

no journal, , 

Tokai Reprocessing Plant is the chemical plant having approximately 30 facilities. Moreover TRP has the particularity that must start the decommissioning while treating radioactive waste. Especially it is important to vitrify high radioactive waste. JAEA worked out the decommissioning schedule for TRP having these particularities. In this presentation, the basic thought of 70-years-schedule is described.

Oral presentation

Decommissioning of Tokai Reprocessing Plant (TRP), 3; Evaluation of waste generation and decommissioning cost

Hashimoto, Kowa; Okano, Masanori; Taguchi, Katsuya; Nagasato, Yoshihiko

no journal, , 

The Tokai Reprocessing Plant has many facilities, various installation and complicated systems, which are contaminated by radioactive materials. Based on this feature, JAEA estimated its waste generation and the cost for decommissioning by using common and reasonable condition for many and complicated facilities.

Oral presentation

Decommissioning of Tokai Reprocessing Plant (TRP), 1; Outline

Taguchi, Katsuya; Hashimoto, Kowa; Akiyama, Kazuki; Nagasato, Yoshihiko

no journal, , 

The TRP had been operated to reprocess 1,140 tons of spent-fuel for approximately 30 years until May 2007. TRP finished the role of reprocessing, and it shift to a decommissioning stage. In this presentation, particularity and challenging-issues of TRP decommissioning are presented, before report a related consideration of TRP.

Oral presentation

Decommissioning of Tokai Reprocessing Plant (TRP), 4; Specific activities for risk reduction for TRP decommissioning

Nakazawa, Yutaka; Murakami, Manabu; Taguchi, Katsuya; Nakano, Takafumi; Nagasato, Yoshihiko

no journal, , 

JAEA will make a TRP safety policy necessary to adequate the new standard of legal regulation for nuclear facilities and to improve the action based on the decommissioning phase of TRP that counting the nuclear material and importance to control it. I will explain the present TRP situation, selection of important facilities in viewpoint of safety and credible accidents, and the safety policy now planning.

13 (Records 1-13 displayed on this page)
  • 1