Benchmark activity in Atomic Energy Society of Japan for improvement of reliability of nuclear fuel cycle simulators

Nishihara, Kenji  ; Takeshita, Kenji*; Shimada, Takashi*; Aizawa, Naoto*; Nakase, Masahiko*; Wada, Satoshi*; Wakasaki, Shingo*; Matsui, Minefumi*; Yasunaga, Yoshiaki*; Okamura, Tomohiro*; Abe, Takumi ; Yoshida, Manabu*; Nagano, Hiroaki*; Kimura, Yoshio*; Ono, Ayako ; Yamazaki, Masatoshi*; Naganuma, Masayuki  ; Watanabe, So  ; Murakami, Tomoko*; Koyama, Tadafumi*; Watanabe, Daisuke*; Fuchita, Sho*; Fukaya, Yuji   ; De Franco, Masako*; Sagara, Hiroshi*; Shimazu, Yoichiro*; Liem, P. H.*; Fujikura, Koji*

This study presents benchmark activities conducted by a research committee of the Atomic Energy Society of Japan to enhance the reliability of nuclear fuel cycle simulators. Standard reactor libraries and phased benchmark scenarios were developed and applied to stepwise validation exercises. The results clarify consistency of simulators on burnup calculation and impact of human error. The results for 11 large-scale scenarios are also provided for future activity.