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

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

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.