FCA実験を用いた水冷却増殖炉核特性への拡張バイアス因子法の適用

Application of extended bias factor method to neutronic characteristics of light water breeding reactor using FCA experiments

久語 輝彦 ; 安藤 真樹  ; 小嶋 健介; 森 貴正; 中野 佳洋 ; 岡嶋 成晃  ; 北田 孝典*; 竹田 敏一*

Kugo, Teruhiko; Ando, Masaki; Kojima, Kensuke; Mori, Takamasa; Nakano, Yoshihiro; Okajima, Shigeaki; Kitada, Takanori*; Takeda, Toshikazu*

FCA実験を活用して、水冷却増殖炉核特性に対して拡張バイアス因子法を適用した。その適用結果により、拡張バイアス因子法の有効性を示した。拡張バイアス因子法を用いて、ベンチマーク実験の有効活用を図ることにより、モックアップ実験を補完する可能性が示された。

Extended bias factor method is applied for the evaluation of prediction accuracy for neutronic characteristics of light water breeding reactor with use of FCA experiments. From results of the application, it is demonstrated that extended bias factor method is very useful for improvement of the prediction accuracy and it has a possibility to complement a full scale mockup experiment by using benchmark experiments and also has a possibility to be superior to the conventional method with use of a full scale mockup experimental result including a large experimental error.