Conceptual study of transmutation experimental facility, 4; Study on safety analysis of transmutation physics experiment facility

Tsujimoto, Kazufumi; Tazawa, Yujiro; Oigawa, Hiroyuki; Sasa, Toshinobu; Takano, Hideki

JAERI-Tech 2003-085, 158 Pages, 2003/11

JAERI-Tech-2003-085.pdf:7.79MB

A safety analysis was performed for the Transmutation Physics Experiment Facility which was to research and develop the reactor physics aspects of the nuclear transmutation technology using the accelerator driven subcritical system. Design policies were evaluated for design of each equipment and system which had important role from view point of safety. Classification of safety class for reactor building, system, and equipment was also reconsidered. Based on the results of safety design policy, acceptance criteria for safety evaluation were reestablished and preliminary analysis were performed. Public exposure by the accident for site appropriateness assessment was evaluated based on revised guidelines in safety evaluation contained in the 1990 Recommendations of ICRP. A recritical event was analyzed by utilizing the newest knowledge for core disruptive accident and calculation code as the beyond design basis accident. The analytical results showed that the isolation capability of the container buildings was ensured against the recritical accident.

Insights from the seismic PSA of the BWR model plant at JAERI

; Kondo, Masaaki; Watanabe, Yuichi*; *; *; Muramatsu, Ken

Proc. of Int. Topical Meeting on Probabilistic Safety Assessment (PSA'99), 1, p.77 - 84, 1999/00

no abstracts in English

Way to utilization of risk information

Sobajima, Makoto

Nihon Genshiryoku Gakkai-Shi, 40(5), p.372 - 374, 1998/00

no abstracts in English

Accident sequence precursor analyses for steam generator tube rupture events that actually occurred

Watanabe, Norio

Reliab. Eng. Syst. Saf., 57, p.281 - 297, 1997/00

https://doi.org/10.1016/S0951-8320(97)00047-1

no abstracts in English

A Proposed safety assurance method and its application to the fusion experimental reactor

Okazaki, Takashi; Seki, Yasushi; Inabe, Teruo; Aoki, Isao

Fusion Engineering and Design, 30(3), p.201 - 216, 1995/07

https://doi.org/10.1016/0920-3796(94)00392-K

no abstracts in English

None

Matsumoto, Shiro*

PNC TJ1533 93-001, 339 Pages, 1993/03

PNC-TJ1533-93-001.pdf:10.31MB

no abstracts in English

A Cost-effective probabilistic model to select the dominant factors affecting the variation of the component failure rate

C.Kirchsteiger*

JAERI-M 92-186, 21 Pages, 1992/11

JAERI-M-92-186.pdf:0.67MB

no abstracts in English

Effort to pass review for checking conformity to new regulatory requirements for high temperature engineering test reactor, 2; Review of seismic design classification based on safety features of HTTR

Ono, Masato; Shimazaki, Yosuke; Ishitsuka, Etsuo; Iigaki, Kazuhiko

no journal, , 

The seismic design classification of HTTR was conservatively classified when HTTR was constructed, however the seismic design classification was reviewed with focus on the safety features based on the technical knowledge obtained from operations and calculations. The seismic design classification is one of the issues of checking conformity reviewed by the Nuclear Regulatory Agency.

Study on risk importance evaluation in dynamic PRA, 1; The Concept and measures of risk importance

Narukawa, Takafumi*; Takata, Takashi*; Zheng, X.; Tamaki, Hitoshi; Maruyama, Yu; Takada, Tsuyoshi

no journal, , 

The dynamic probabilistic risk assessment (dynamic PRA) methodology explicitly treats the dynamics of event progression, enabling risk assessment that does not require predefined scenarios or success criteria. Based on these characteristics, from the perspective of risk triplet, we investigated the concept and measures of risk importance in dynamic PRA. Furthermore, the proposed importance measures were applied to a dynamic PRA to evaluate their effectiveness. This presentation reports the results of the investigation into the concept and measures of risk importance.