Probabilistic risk assessment method development for high temperature gas-cooled reactors, 4; Development of event tree construction and quantification method for accident sequences involving multiple piping ruptures in seismic PRA

Matsuda, Kosuke*; Muramatsu, Ken*; Muta, Hitoshi*; Sato, Hiroyuki ; Nishida, Akemi ; Itoi, Tatsuya*

The selection of initiating model for seismic PRA is studied. System analysis are conducted and compared for the case with initiating event hierarchy tree and the case with a multiple branching event tree. The analysis is performed with SECOM2-DQFM code developed by Japan Atomic Energy Agency. As a result of study, we have found the effective classification method for the seismic initiating events with satisfactory accuracy.

Language	:	Japanese
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Meeting title	:	日本原子力学会2017年春の年会
Held date	:	2017/03
Location (city)	:	平塚
Location (country)	:	日本
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Keywords	:	高温ガス炉; 確率論的リスク評価
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Article of JAEA R&D Review	:
Cooperating Institute	:	文部科学省

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Registration No. : BB20162112
JAEA Abstracts No. :
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