参加全国总α、总β放射性测量能力比对结果分析  

Analysis of the results of the nationwide interlaboratory comparison of gross α and gross β radioactivity measurement

作　　者：陈永雍 施扬海 时宇花[1] 王萍[1] 卢远盛 CHEN Yongyong;SHI Yanghai;SHI Yuhua;WANG Ping;LU Yuansheng(Guangxi Zhuang Autonomous Region Institute for the Prevention and Treatment of Occupational Disease,Nanning 530021 China)

机构地区：[1]广西壮族自治区职业病防治研究院,广西南宁530021

出　　处：《中国辐射卫生》2024年第1期40-45,共6页Chinese Journal of Radiological Health

基　　金：广西卫生健康委自筹经费科研课题(Z-A20220342)。

摘　　要：目的 通过分析历年全国总α、总β放射性测量能力比对结果,对相关技术问题进行总结和提高。方法 按照比对要求,依据国家标准进行水中总α、总β放射性检测,分析比对结果,探讨影响结果的因素。结果 2018—2022年5次参加全国水中总α、总β放射性检测能力比对,总α放射性、总β放射性的Z检验值范围分别为-0.24~1.8和-1.4~0.35,相对偏差范围分别为-4%~32%和-18%~6%,比对结果均为合格。结论 经过比对分析与技术总结改进,测量结果均在合格范围内,且与参考值的相对偏差呈逐年减小的趋势,提高了测量准确度。Objective To summarize and improve the related technical issues by analyzing the nationwide interlaboratory comparison of grossαand grossβradioactivity measurement over the years.Methods According to the requirements of interlaboratory comparison and the national standards,the grossαand grossβradioactivity in water were measured,and the results were analyzed to identify the influencing factors.Results From 2018 to 2022,our laboratory participated in five nationwide interlaboratory comparisons of grossαand grossβradioactivity measurement.The Z-test values for grossαand grossβmeasurement ranged from−0.24 to 1.8 and−1.4 to 0.35,respectively.The relative deviations ranged from−4%to 32%and−18%to 6%,respectively.All comparisons were within the acceptable ranges.Conclusion The analysis of comparisons showed that the results were within the acceptable ranges.The relative deviations between the measurement and the reference values have decreased over the years.The summary and improvement of related technologies have improved the measurement accuracy.

关 键 词：水中 总α、总β放射性 比对 结果分析 

分 类 号：X591[环境科学与工程—环境工程]