建筑材料放射性比活度分析的不确定度评定  

Evaluation of uncertainty in radioactive specific activity analysis of building materials

作　　者：龚强 刘海峰 李连江 Gong Qiang;Liu Haifeng;Li Lianjiang(National Indoor and Vehicles Environment and Environmental Product Quality Inspection and Testing Center,Tongzhou Beijing 101102,China)

机构地区：[1]国家室内车内环境及环保产品质量检验检测中心,北京通州101102

出　　处：《福建分析测试》2022年第4期55-57,共3页Fujian Analysis & Testing

摘　　要：测量了建筑材料放射性镭比活度、钍比活度和钾比活度,分析识别不确定度来源,并对各个分量进行了分析估算,最终测得结果内照射指数I_(Ra)=0.30±0.03,k=2;外照射指数Iγ=0.69±0.04,k=2。The specific activities of radium,thorium and potassium of building materials were measured,the sources of uncertainty were analyzed and identified,and each component was analyzed and estimated.Finally,the internal irradiation index I_(Ra)=0.30±0.03,K=2 and external irradiation index Iγ=0.69±0.04,K=2 were obtained.

关 键 词：不确定度 建筑材料 放射性 

分 类 号：TU50[建筑科学—建筑技术科学]