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KUCAの未臨界実験体系に対するMVPを用いた炉雑音解析

Reactor noise analysis using MVP code for subcritical systems in KUCA

中嶋 國弘*; 長家 康展  ; 左近 敦士*; 佐野 忠史*; 橋本 憲吾*

Nakajima, Kunihiro*; Nagaya, Yasunobu; Sakon, Atsushi*; Sano, Tadafumi*; Hashimoto, Kengo*

京都大学臨界集合体(KUCA)A架台に構築した未臨界体系で測定した原子炉雑音データを用いてMVP3.0の炉雑音解析機能による実験解析を実施した。本発表では即発中性子減衰定数$$alpha$$について、実験値と計算値を比較検討し結果を報告する。

Reactor noise analysis have been performed with the MVP3.0 code for subcritical experiments at KUCA A-core. The prompt neutron decay constant $$alpha$$ has been calculated with Feynman-$$alpha$$ simulation capability of the code. It has been confirmed that the calculated values agree with the measured ones within the range of 10%.

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