ENDF/B-Ⅶ.0多群截面库MUSE1.0在压力容器基准实验分析中的初步应用  

Preliminary Analysis of RPV Benchmark for PWR With MUSE1.0 ENDF/B-Ⅶ.0 Multi-group Library

作　　者：杨寿海[1] 陈义学[1] 陈朝斌[1] 吴军[1] 马续波[1] 韩静茹[1] 张斌[1] 张普忠[1] 石生春[1] 

机构地区：[1]华北电力大学核科学与工程学院,北京102206

出　　处：《原子能科学技术》2009年第12期1081-1085,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(10705011;10875042);国家重点基础研究发展计划资助项目(2007CB209800);北京市科技新星计划资助项目(2007B058)

摘　　要：基于ENDF/B-Ⅶ.0评价核数据库开发了172n×42g多群截面数据库MUSE1.0,利用二维离散纵标法程序DORT,针对美国H.B.Robinson-2号机组压力容器基准实验,对辐照监督管处中子能谱、核反应率及比活度等参数进行了详细的计算分析,并与基于ENDF/B-Ⅵ的BUGLE-96多群参数库计算结果及实验测量值进行了比较分析。结果表明:MUSE1.0比活度计算值与实验测量值之比(C/M)平均为0.98±0.04,较BUGLE-96计算结果(平均C/M为0.90±0.04)精度有较大提高,满足压水堆压力容器快中子注量计算精度要求。Multi-group library MUSE1. 0 based on the ENDF/B-Ⅶ. 0 was developed. The key responses, such as neutron spectrum, reaction rate and specific activity of the surveillance capsule benchmark of H.B. Robinson unit-2 in the USA were calculated by the two-dimensional discrete-ordinates code DORT. The results were compared with those calculated by the BUGLE-96 cross section library which was based on ENDF/ B-Ⅶ. The average ratio of calculated-to-measured （C/M） specific activities with MUSE1.0 is 0.98±0. 04, which is more accurate than the value of 0.90 4-0.04 with BUGLE-96. The result indicates that MUSE1.0 satisfies the accuracy requirement of fast neutron fluence calculation for RPV of PWR.

关 键 词：MUSE1.0多群截面数据库 离散纵标法 辐照监督管基准实验 

分 类 号：TL351.6[核科学技术—核技术及应用] TL329.03