蒙特卡罗方法计算γ射线衰减系数的修正参数  

Computation of correction of γ-ray attenuation factor with Monte Carlo method

作　　者：邓杰[1] 葛良全[1] 陈明驰[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059

出　　处：《铀矿冶》2009年第2期96-98,共3页Uranium Mining and Metallurgy

摘　　要：研究窄束γ射线衰减规律试验中由于源的发散性引起的误差,提出相关的修正参数(A),选用蒙特卡罗方法进行模拟计算,分别模拟点状源模型和单向源抽象模型,得出A的变化规律。为进一步研究试验环境下其他因素对衰减系数的影响以及用实测数据进行γ场的理论计算、γ射线衰减规律的工业应用等提供参考。Errors resulted from divergence of source in experiments of narrow beam γ-ray attenuation law are studied. A interrelated correction parameter（A） is presented. The change law of A is gained by simulation with Monte Carlo method in both mono-directional and point sources. A reference can be provided for further research of influence from other factors of experiment environment, theoretical calculation of γ-field by observation data, and industrial application of γ-ray attenuation law.

关 键 词：Γ射线 衰减规律 修正参数 蒙特卡罗方法 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论] O571.323[自动化与计算机技术—计算机科学与技术]