Improvement of correlated sampling Monte Carlo methods for reactivity calculations.
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概要
- 論文の詳細を見る
Two correlated Monte Carlo methods, the similar flight path and the identical flight path methods, have been improved to evaluate up to the second order change of the reactivity perturbation. Secondary fission neutrons produced by neutrons having passed through perturbed regions in both unperturbed and perturbed systems are followed in a way to have a strong correlation between secondary neutrons in both the systems. These techniques are incorporated into the general purpose Monte Carlo code MORSE, so as to be able to estimate also the statistical error of the calculated reactivity change.<BR>The control rod worths measured in the FCA V-3 assembly are analyzed with the present techniques, which are shown to predict the measured values within the standard deviations. The identical flight path method has revealed itself more useful than the similar flight path method for the analysis of the control rod worth.
- 一般社団法人 日本原子力学会の論文
著者
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Nakagawa Masayuki
Division Of Cardiovascular Medicine Department Of Internal Medicine Kobe University Graduate School
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ASAOKA Takumi
Division of Reactor Engineering, Japan Atomic Energy Research Institute
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