摘要
研究了裂变系统在宽脉冲外中子源注入驱动下裂变链统计涨落问题.提出了概率分布Wn方程的分解-合成数值模拟计算方法,使裂变系统注入中子源数值模拟计算扩展到一般广义条件(具有任意时间分布、注入时间零点t0概率分布函数P(t0)和数概率分布S(n)等).同时讨论了应用物理模型的等效条件.将基本前提等效条件从单介质区模型扩展到多介质区模型.为解概率分布Wn方程必备参数提供了计算平均公式.
With wide-pulse neutron injection the fission chain fluctuates statistically.A calculation approach is presented, in which numerical solutions of the statistical distribution W_n equations are disassembled and then synthesized.It makes the computation suitable for generalized conditions (with arbitrary time distribution,zero time (t_0) injection probability distribution P(t_0) and number probability distribution S(n) etc.).The equivalent conditions in practical physical models are discussed and expanded from single-medium to multi-medium.In addition, the average computing formulae for required parameters in solving W_n equations are given as well.
出处
《计算物理》
CSCD
北大核心
2005年第2期179-183,共5页
Chinese Journal of Computational Physics
