科研之友
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摘要
Scattering neutrons are one of the key factors that may affect the images of fast neutron radiography. En this paper, a mathematical model for scattered neutrons is developed on a cylinder sample, and an empirical formula for scattered neutrons is obtained. According to the results given by Monte Carlo methods, the parameters in the empirical formula are obtained with curve fitting, which confirms the logicality of the empirical formula. The curve-fitted parameters of common materials such as (LiD)-Li-6 are given.
- 出版日期2011-5
- 单位中国工程物理研究院; 中国工程物理研究院核物理与化学研究所
