散料γ射线测厚方法的研究  

Study on a Measuring Method of Thickness of Matter in Bulk by γ Ray

作　　者：杨化中[1] 姚泽恩[1] 贾文宝 陈尚文[1] 苏桐龄 张宇[1] 

机构地区：[1]兰州大学现代物理系

出　　处：《核电子学与探测技术》1998年第1期21-24,共4页Nuclear Electronics & Detection Technology

摘　　要：散料γ射线厚度测量方法主要研究了宽束和窄束条件下，线减弱系数μ实与实验条件、散料厚度及散料含水量的变化规律，从中寻找计算散料厚度的方法，还研究了积累因子Ｂ与实验条件、散料厚度及含水量的关系。同时对实验测量的μ实与理论计算的μ理进行了比较。he experimental values of γ ray linear absorption coefficient μexp under various experimental conditions are calculated. Various μexp values which vary with the thickness and moisture of matter in bulk under the conditions of wide and narrow γ ray beams are studied, and the measuring method of the thickness of matter in bulk is given. The μexp is compared with the μth which is obtained by theoretical calculation. In addition, the variation of the buildup factor B with the experimental conditions, such as the thickness and the moisture of matter in bulk, is studied.(

关 键 词：散料 Γ射线 减弱系数 厚度仪 厚度测量 

分 类 号：TH821.1[机械工程—仪器科学与技术]