铀系不平衡样品年剂量的确定  

Determination of annual dose for unbalanced U series samples

作　　者：梁兴中[1] 

机构地区：[1]成都理工学院

出　　处：《核技术》1995年第8期499-503,共5页Nuclear Techniques

摘　　要：利用堆中子活化分析法测定样品中２３８Ｕ的含量，利用纯锗半导体探测器γ谱仪测定样品中２２６Ｒａ的含量，利用α计数仪或γ谱仪测定２２２Ｒｎ的逃逸系数，最后采用计算法得到铀系不平衡样品的年剂量．A technique of annual dose determination for unbalanced U series samples is described in this paper. The content of 238U is determined by neutron activation analysis and that of 226Ra by a Ge semiconductor detector. Escape coefficient of radon is estimated by an alpha- particle counter or a gamma spectrometer. A formula for annual dose calculation of unbalanced U series samples is derived.

关 键 词：铀 氡 样品 辐射剂量 活化 镭226 Γ谱仪 氡222 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]