中日三个实验室γ能谱分析比对回顾  

A review of intercomparison of measurement results by gamma-ray spectrometry in three laboratories in China and Japan

作　　者：周强[1] 韩艳清[1] 张京[1] 杨宝路 李文红[1] 李则书 拓飞[1] Zhou Qiang;Han Yanqing;Zhang Jing;Yang Baolu;Li Wenhong;Li Zeshu;Tuo Fei(Key Laboratory of Radiological Protection and Nuclear Emergency,China CDC,National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention,Beijing 100088,China)

机构地区：[1]中国疾病预防控制中心辐射防护与核安全医学所,辐射防护与核应急中国疾病预防控制中心重点实验室,北京100088

出　　处：《中华放射医学与防护杂志》2020年第10期758-764,共7页Chinese Journal of Radiological Medicine and Protection

基　　金：国家自然科学基金(21806156)。

摘　　要：目的回顾20年来中日γ能谱测量分析比对的结果,改进和提高放射性核素γ能谱测量分析技术。方法每次比对前约定由某一参加单位制备该次比对样品,通过实验室间测量结果的相互比较,发现样品测量分析过程中的潜在问题。结果20余年来共开展比对11次,测量分析6类20个样品中的290个核素结果,其中95.5%的测量结果在约定的偏差范围内符合。结论中日γ能谱分析比对检验了参加单位γ能谱的测量分析能力,促进了各单位γ能谱测量分析技术的提高。Objective To improve the radionuclide measurement technology byγ-spectrometry throuth a review of the intercomparisons between China and Japan results over the past 20 years.Methods Before the beginning of each intercomparison,one of participating laboratories was agreed to be responsible for preparing the samples for the intercomparison.By intercomparison of the measurement results arnong the laboratories some potential problems during the sample pre-trement or analysis were found and solved.Results The intercomparisons had been carried out for 11 times over the past 20 years.Totally 290 measured and analyzed results had been obtained from 20 samples of six categories.The proportion 95.5%of measurement results were in agreement with each other within the deviation range.Conclusions The measuring and analytical capability of the laboratories involved were tested.The intercomparisons also provide long-term quality assurance measures for the radionuclide measurement and analysis in each laboratory.

关 键 词：Γ能谱 放射性核素 比对 

分 类 号：TL752[核科学技术—辐射防护及环境保护]