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
陈永雍 1施扬海 1时宇花 1王萍 1卢远盛1
作者信息
- 1. 广西壮族自治区职业病防治研究院,广西南宁 530021
- 折叠
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.
Abstract
Objective To summarize and improve the related technical issues by analyzing the nationwide interlaboratory comparison of gross α and gross β radioactivity measurement over the years.Methods According to the requirements of interlaboratory comparison and the national standards,the gross α and gross β radioactivity in water were measured,and the results were analyzed to identify the influencing factors.Results From 2018 to 2022,our laboratory participated in five na-tionwide interlaboratory comparisons of gross α and gross β radioactivity measurement.The Z-test values for gross α and gross β measurement 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 com-parisons 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Key words
Water/Gross α/gross β radioactivity/Interlaboratory comparison/Result analysis引用本文复制引用
基金项目
广西卫生健康委自筹经费科研课题(Z-A20220342)
出版年
2024
NETL
NSTL
万方数据