Biasing Parameter Limits for Synergistic Monte Carlo in Deep-Penetration Calculations
Biasing Parameter Limits for Synergistic Monte Carlo in Deep-Penetration Calculations
复制标题
深度渗透计算中协同蒙特卡罗的偏置参数限制
DOI:
10.13182/nse86-a18611
复制
发表时间:
1986
期刊:
影响因子:
--
通讯作者:
H. Gupta
中科院分区:
文献类型:
--
作者:
S. R. Dwivedi;H. Gupta
The Monte Carlo scheme for deep-penetration problems, where both transport and collision kernels are biased synergistically, leads to minimum variance. Obtaining a proper biasing parameter is still a problem. For certain values of biasing parameter, the variance could be infinite even in a very simple problem. Using moment equations of statistical error prediction, a critical biasing parameter is obtained. A biasing parameter greater than the critical parameter may lead to an unbounded second moment in a simple one-dimensional homogeneous shield problem. A prescription is provided that may help to avoid a poor selection of the biasing parameter.