强激光与粒子束2012，Vol.24Issue(8)：1985-1989,5.DOI:10.3788/HPLPB20122408.1985
不同水温下的中子输运等效质量热运动模型
Equivalentmass thermal motion model of neutron transport in water at different temperatures
朱金辉 1卓俊 1陶应龙 1韦源 1黄流兴1
作者信息
摘要
Abstract
In the Monte Carlo simulation, theS(a,β) model can only be used in some given temperature. The paper proposes the equivalent mass thermal motion model of neutron transport in water at different temperatures. The free gas thermal motion model is analyzed. Different equivalent masses are used to correct the neutron elastic scattering simulation of hydrogen in water, and the optimal equivalent mass of hydrogen in water at five different temperatures is given by comparing the result of the neutron flow through water layer with the S(a,β) model. According to the data of the five different temperature points, the formula of the optimal equivalent mass varying with temperature is fitted. The results of the equivalent mass thermal motion model are in accord with those of the S(a,β) model. The equivalent mass thermal motion model breaks the limitation of the S(a,β) model, and can deal with the neutron transport problems in water at arbitrary temperature between 300-800 K.关键词
蒙特卡罗模拟/中子输运/等效质量热运动模型/氢原子Key words
Monte Carlo simulation/ neutron transport/ equivalent mass thermal motion model/ hydrogen分类
数理科学引用本文复制引用
朱金辉,卓俊,陶应龙,韦源,黄流兴..不同水温下的中子输运等效质量热运动模型[J].强激光与粒子束,2012,24(8):1985-1989,5.
