无源效率刻度方法表征矿产品中天然核素比活度的准确性验证  

Experimental Validation for Analysis of Specific Activity of Natural Nuclides in Ores by Sourceless Efficiency Calibration Method

作　　者：严文勋[1] 封亚辉[1] 李建军[1] 周程[2] 郑建明[1] 程薇[1] 戴东情[1] 张秀[1] 

机构地区：[1]江苏出入境检验检疫局,江苏南京210001 [2]江苏省辐射环境监测管理站

出　　处：《中国辐射卫生》2014年第4期365-367,共3页Chinese Journal of Radiological Health

基　　金：国家质检总局科技计划项目(2013IK06)

摘　　要：目的验证实验室无源效率刻度方法(LabSOCS)表征矿产品中天然核素比活度的准确性。方法采用标准点源,验证HPGeγ谱仪探测器的LabSOCS表征的可靠性,在此基础上,分别采用标准矿产品体源和非标准矿产品体源对无源效率刻度方法测量矿产品中天然核素比活度的准确性进行验证。结果 LabSOCS可满足矿产品中天然核素比活度的测量需求。结论 LabSOCS可作为矿产品中核素比活度分析的一个有效补充。Objective To verify the accuracy of the specific activity of natural nuclides in ordinary ores by sourceless efficiency calibration method（LabSOCS）. Methods Standard point sources were used to verify the reliability for characterization of γ, detector using LabSOCS , and standard ores volume source and non - standard ores volume source were used as experimental validation for analysis of specific activity of natural nuclides in ordinary ores by LabSOCS. Results LabSOCS can be applied to characterize the specific activity of natural nuclides in ordinary ores. Conclusion LabSOCS can be used as a supplementary method to efficiency calibration for analysis of specific activity of natural nuclides in ores.

关 键 词：HPGEΓ谱仪 无源效率刻度 标准点源 标准矿产品体源 

分 类 号：R144[医药卫生—公共卫生与预防医学]