【作者】 朱通华； 刘荣； 鹿心鑫； 蒋励； 温中伟； 王玫； 林菊芳； 言杰；

【Author】 ZHU Tong-hua,LIU Rong,Lu Xinxin,JIANG Li,Wen Zhongwei, Wang Mei,Lin Jufang,Yan Jie (Institute of Nuclear Physics and Chemistry of CAEP, P.O.Box 919-213,Mianyang of Sichuan Prov.621900,China)

【机构】 中国工程物理研究院核物理与化学研究所；

【摘要】 本文利用MCNP5程序和自带数据库对(?)600贫化铀球上的裂变数、裂变率分布实验结果及修正因素进行了分析。通过比较不同数据库的结果,选择endf66c来进行模拟分析。结果表明,对实验装置进行全模拟,得到的裂变数与实验值、裂变率分布与实验值的差异略有改善,约为10%;实验测量中对中子源和铀球自屏蔽的考虑是合理的。分析结果对即将开展的磁约束聚变裂变混合堆中中子学实验研究具有借鉴意义。更多还原

【Abstract】 In this paper,the experimental results of fission number、fission rate distribution on(?)600mm depleted uranium sphere by D-T neutron was analyzed with MCNP5 code and it’s own libraries.The endf66c library was selected in this work from comparison of results with the libraries.The caculation results indicate,the explicitly simulation of the experiment assembly caused smaller discrepancy between the caculated results and the experimental one,and the discrepancy is about 10%;the correction of neutron source and self-shield of uranium sphere was validity.The results of this work is referable to the next-step neutronic experiment for magnetic confined fusion-fission hybrid research.更多还原