HTTR(高温工学試験研究炉)の新規制基準に係る適合性審査について,3; 多量の放射性物質等を放出するおそれのある事故時の原子炉挙動と対策

Effort to pass review for checking conformity to new regulatory requirements for high temperature engineering test reactor, 3; Reactor behavior and countermeasures during the accidents that may release large amounts of radioactive materials

濱本 真平  ; 島崎 洋祐 ; 長住 達; 栃尾 大輔 ; 飯垣 和彦 ; 石塚 悦男   

Hamamoto, Shimpei; Shimazaki, Yosuke; Nagasumi, Satoru; Tochio, Daisuke; Iigaki, Kazuhiko; Ishitsuka, Etsuo

HTTR(高温工学試験研究炉)の適合性審査の項目のひとつである多量の放射性物質を放出するおそれのある事故への対策について、事故選定の考え方、選定された事故が生じた際の原子炉挙動の評価方法と評価結果、さらにその時の対策について報告する。

Regarding the countermeasures against accidents that may release a large amount of radioactive materials, which is one of the items of conformity review on the New Regulatory Requirements for HTTR (High temperature engineering test reactor), this presentation describes the concept of accident selection, the evaluation method and results of the reactor behavior at the time of the selected accident and the countermeasures to be taken at that time.