原子能科学技术2013，Vol.47Issue(7)：1107-1111,5.DOI:10.7538/yzk.2013.47.07.1107
浅超瞬发临界系统中子引发持续裂变链的概率
Neutron Initiation Probability in Slightly Prompt Super-critical System
摘要
Abstract
Based on the probability method that neutron will interact with the medium in nuclear assembly,the equation that governs neutron initiation probability W(r,E,Ω,t) was derived.On the assumption of static and slightly prompt super-critical condition,the formula of initiation probability of one neutron was obtained using second-order approximations and perturbation method.With the formula and nuclear parameters of Godiva-Ⅱ,Caliban and CFBR-Ⅱ burst reactors,the initiation probabilities of one neutron are 0.00032,0.00054 and 0.00027 respectively,and the experimental data attained on Godiva-Ⅱ,Caliban were used to compare with and discuss the theoretical results.关键词
超瞬发临界/持续裂变链/中子引发概率/脉冲堆Key words
prompt super-criticality/ persistent neutron fission chain/ neutron initiation probability/ burst reactor分类
能源科技引用本文复制引用
刘晓波,杜金峰,范晓强..浅超瞬发临界系统中子引发持续裂变链的概率[J].原子能科学技术,2013,47(7):1107-1111,5.基金项目
中国工程物理研究院科学技术发展基金资助项目(2010B0103010) （2010B0103010）
