Research outline of the Criticality Safety Research Group

Gunji, Satoshi ; Watanabe, Tomoaki ; Suyama, Kenya; Araki, Shohei ; Fukuda, Kodai

The criticality safety research group had been conducted research using deterministic methods to ensure the criticality safety. However, the retrieval work of fuel debris in the Fukushima Daiichi Nuclear Power Station cannot be evaluated by the conventional criticality management methods, therefore it is necessary to develop a risk-informed control method. In this presentation, among the research activities undertaken to address these research issues, the following research topics are presented. (1) Criticality Map Database, (2) Support for the new STACY installation and certification, (3) Study of the new STACY experiments, (4) Post-Irradiation Examination (PIE) / Combustion Analysis

Language	:	Japanese
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Meeting title	:	令和3年度原子力規制庁技術基盤グループ-原子力機構安全研究・防災支援部門合同研究成果報告会
Held date	:	2021/11
Location (city)	:	online
Location (country)	:	日本
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Keywords	:	臨界実験; STACY更新炉; 燃料デブリの臨界安全; 福島第一原子力発電所事故; 臨界マップデータベース; PIE; Fukushima Daiichi Nuclear Power Station Accident
Research Facility	:	STACY(定常臨界実験装置) ;WASTEF(廃棄物安全試験施設) ;BECKY(バックエンド研究施設) ;RFEF(燃料試験施設) ;第4研究棟
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Cooperating Institute	:	原子力規制委員会

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Registration No. : BB20210872
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