摘要
辐照靶件的释热计算对堆内实验设计影响重大。本文依据在CARR堆上开展的自给能探测器实验,分析了不同核评价数据库在辐射俘获反应释热计算上的差异来源,并对较早版本数据库的计算结果进行了一定的修正。实验结果表明,以ENDF/B-VⅢ.0等库为代表的数据库计算结果更为合理,并建议研究者在进行后续堆内实验设计时,关注KERMA因子的能量平衡情况,优先采用数据更为完备的核评价数据库进行计算。
Heat releasing calculation for irradiated targets have a tremendous influence on in-core experiment design.Based on the self-powered neutron detector experiment in CARR,the difference of heat releasing calculation results on radioactive capture reaction with several evaluated nuclear data libraries has been studied,and a modification to the calculation with earlier database edition has been implemented.The experimental results show that the heat releasing calculation results with ENDF/B-VⅢ.0 are more reasonable,and a evaluated nuclear data library edition with more data is always suggested to be used for future in-core experiment design.Users should check if the KERMA factors and energy balance are adequate or not to get reliable results.
作者
乔雅馨
陶杰
吴小飞
QIAO Yaxin;TAO Jie;WU Xiaofei(China Institute of Atomic Energy,Beijing 102413,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2023年第3期517-521,共5页
Nuclear Science and Engineering
基金
国家重点研发计划资助项目(2002YFB1902600)。
关键词
自给能探测器
释热计算
核评价数据库
CARR
Self-powered neutron detector
Heat releasing calculation
Evaluated nuclear data library
CARR
