现代应用物理2016，Vol.7Issue(4)：040201-1-040201-6,6.
核截面不确定度对西安脉冲堆keff计算结果的影响分析
Analysis on the Effect of Nuclear Cross Section Data Uncertainty to keff Calculation in Xi’an Pulsed Reactor
王立鹏 1张信一 1郭和伟 1朱养妮 1姜夺玉 1江新标 1魏加祥1
作者信息
摘要
Abstract
To investigate the uncertainty of nuclear data to kef calculation in Xi’an Pulsed Reactor(XAPR),a widely used TSUNAMI-3D-K6 code is used to study kef uncertainties with respect to two reactor core arrangements for XAPR.The results indicate that the accuracy of present nuclear cross-section data would bring an uncertainty about 0.5% for kef while the number of neutron yield per fission of 235 U contributes most to kef uncertainty. The implicit sensitivity coefficients caused by resonance shielding calculation have a little influence on the patterns of XAPR,and different arrangements in XAPR alter local sensitivi-ty coefficients,however it has no effect on the final uncertainty to kef .关键词
西安脉冲堆/有效增殖系数/核数据库/敏感性/不确定度Key words
Xi’an Pulsed Reactor/effective multiplication factor/nuclear data/sensitivity/uncertainty分类
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王立鹏,张信一,郭和伟,朱养妮,姜夺玉,江新标,魏加祥..核截面不确定度对西安脉冲堆keff计算结果的影响分析[J].现代应用物理,2016,7(4):040201-1-040201-6,6.
