2021—2023年上海市外照射个人剂量监测机构能力比对结果与分析  

Intercomparison of institutions providing individual external exposure monitoring services in Shanghai from 2021 to 2023

作　　者：钱爱君[1] 温学新 高林峰[1] 杨范翘楚 姚杰[1] 黄敏鹏 QIAN Aijun;WEN Xuexin;GAO Linfeng;YANGFAN Qiaochu;YAO Jie;HUANG Minpeng(Department of Radiation Protection,Shanghai Municipal Center for Disease Control and Prevention,Shanghai 200336,China;Department of Environmental and Occupational Health,Hongkou District Center for Disease Control and Prevention,Shanghai 200082,China;School of Public Health,Fudan University,Shanghai 200433,China)

机构地区：[1]上海市疾病预防控制中心放射卫生科,上海200336 [2]上海市虹口区疾病预防控制中心环境与职业卫生科,上海200082 [3]复旦大学公共卫生学院,上海200433

出　　处：《环境与职业医学》2024年第10期1162-1166,共5页Journal of Environmental and Occupational Medicine

基　　金：上海市公共卫生重点学科项目(GWVI-11.1-40);上海市卫生健康委员会2023年度卫生行业临床研究专项(202340299)。

摘　　要：[背景]放射工作人员外照射个人剂量监测是法定的监测任务,也是放射工作人员职业病诊断的重要依据,确保监测数据的准确性和可靠性对于保障放射工作人员健康至关重要。[目的]本研究旨在通过比对评估上海市放射卫生技术服务机构外照射个人剂量监测的能力和水平,规范相关工作流程,并提高监测的准确性和可靠性。[方法]2021—2023年间,组织上海市放射卫生技术服务机构进行年度外照射个人剂量监测能力比对。研究对象为上海市辖区内的19~21家放射卫生技术服务机构,所有机构均参与了外照射个人剂量监测能力比对。监测对象包括16家区级疾控中心和13家第三方检测机构。监测能力通过评定单组性能、综合性能及Q值进行分析。比对中,使用热释光剂量测量系统对热释光剂量计[材料为氟化锂(镁、铜、磷)LiF(Mg,Cu,P)]进行照射测试,依据GBZ 207—2016对X射线和γ射线在不同剂量和照射条件下的监测数据进行分析。统计方法包括t检验和Kolmogorov-Smirnov检验,统计学差异设为P<0.05。[结果]2021—2023年,参与比对的机构数分别为19、21和19家,总合格率为94.9%(56/59)。2022年、2023年分别有2家和1家不合格。单组性能和综合性能到达优秀标准的机构数分别为9、12和13家,最终评定优秀的机构分别为3、7和8家,总优秀率为30.5%(18/59),优秀转化率为52.9%。单组性能和综合性能的合格率均为98.3%。X射线监测结果中,负偏差组数为正偏差组数的1.86倍,γ射线的负偏差组数为正偏差组数的1.10倍,X射线在<1.0 mSv和>1.0 mSv的偏差差异有统计学意义(P=0.01),而相同剂量下,X射线和γ射线的单组性能偏差无统计学意义。2021年和2022年的X射线报告值与参考值的差异有统计学意义(P<0.05),2023年无统计学意义(P>0.05);γ射线三年的报告值与参考值的差异无统计学意义(P>0.05)。[结论]连续三年,上海市放射卫生�[Background]The monitoring of external radiation individual doses for radiation workers is a statutory task and serves as an important basis for the diagnosis of occupational diseases in this occupational group.Ensuring the accuracy and reliability of monitoring data is crucial for safeguarding the health of radiation workers.[Objective]To evaluate and compare the capabilities and levels of external radiation individual dose monitoring conducted by radiation hygiene service institutions in Shanghai,to standardize relevant workflows,and to improve the accuracy and reliability of the monitoring service.[Methods]From 2021 to 2023,annual intercomparisons of external radiation individual dose monitoring capabilities were organized for radiation hygiene service institutions in Shanghai.The study subjects were 19 to 21 radiation hygiene service institutions registered in Shanghai for each year and they all participated in the intercomparisons.The monitoring subjects included 16 district-level centers for disease control and prevention(CDCs)and 13 third-party testing agencies.Monitoring capabilities were analyzed based on single-group performance,comprehensive performance,and Q-value.In the intercomparison,a thermoluminescent dosimetry system was used to perform irradiation tests on thermoluminescence dosimeter[made of lithium fluoride(magnesium,copper,phosphorus),LiF(Mg,Cu,P)],and monitoring data for X-rays andγ-rays at different doses and radiation conditions were analyzed following a standard procedure specified by GBZ 207−2016.Statistical methods included t-test and Kolmogorov-Smirnov test,with statistical significance set at P<0.05.[Results]From 2021 to 2023,the number of participating institutions was 19,21,and 19,respectively,with an overall pass rate of 94.9%(56/59).Two institutions failed in 2022 and one in 2023.The number of institutions meeting the excellent standard in single-group and comprehensive performance was 9,12,and 13,respectively,and the number of institutions ultimately rated as excellent was 3,

关 键 词：个人剂量 监测 比对 单组性能 综合性能 

分 类 号：R14[医药卫生—公共卫生与预防医学]