摘要
为了提高次临界堆(含热裂变包层)核分析的精度,设计开发了315群中子-42群光子耦合的细群核数据库HENDL3.0/FG(Fine-Group)。评价核数据来源主要选用美国核数据中心公布的ENDF/B-VII.0库。利用蒙特卡罗粒子输运程序MCNP以及FDS团队自主研发的大型集成中子学计算分析系统VisualBUS程序进行模拟计算,对已有的一些数据较为完备的基准实验例题进行测试和比较分析以检验细群核数据库HENDL3.0/FG的有效性和可信性。
To improve the accuracy of the neutron analyses for subcritical systems with thermal fission blanket,a coupled neutron and photon(315 n + 42γ)fine-group cross section library HENDL3.0/FG based on ENDF/B-VII.0 has been produced by FDS team.In order to test the availability and reliability of the HENDL3.0/FG data library,shielding and critical safety benchmarks were performed with VisualBUS code.The testing results indicated that the discrepancy between calculation and experimental values of nuclear parameters fell in a reasonable range.
出处
《核科学与工程》
CSCD
北大核心
2011年第4期360-364,384,共6页
Nuclear Science and Engineering
基金
中国科学院知识创新工程重要方向项目(KJCX2-YW-N37
KJCX2-YW-N35)
中国科学院信息化专项项目(INFO-115-C01-SDB2-010)
中国科学院战略性先导科技专项(XDA03040000)
关键词
聚变-裂变混合堆
细群
共振自屏
fusion-fission hybrid systems
fine-group
resonance self-shielding