摘要
依据国家标准《外照射个人剂量系统性能检验规范》和全国个人剂量监测能力比对考核方案,对照射过的TLD探测器片盲样进行检测和结果不确定度评估计算,将甄别射线类型前的数据与甄别射线类型、修正刻度因子后的数据进行比较。2019年比对结果为:5组比对结果单组性能偏差范围为-0.18~0.03,综合性能偏差0.12≤0.30,判定为合格;2020年比对结果为:5组比对结果单组性能偏差范围为-0.21~0.04,综合性能偏差0.14≤0.30,判定为合格。对射线类型和辐射水平进行甄别后,单组性能与综合性能均达到评定优秀的要求。比对结果显示,该实验室个人剂量监测系统运行良好,监测技术满足外照射个人剂量监测的有关性能要求。
According to Testing criteria of personnel dosimetry performance for external exposure(GBZ 207—2016)and the assessment plan,to examine the irradiated blind samples and evaluate the uncertainty,to compare the data before screening the radiation types and radiation levels with the data after screening the radiation types and radiation levels,after correcting the scale factor.The inter-comparison result in 2019 showed that the single group performance deviation of 5 groups was-0.18 to 0.03,and the comprehensive performance deviation was 0.12≤0.30,which was determined as qualified.The inter-comparison results of individual dose monitoring system in 2020 showed that the single group performance deviation of five groups was-0.21 to 0.04,and the comprehensive performance deviation is 0.14≤0.30,which was also judged as qualified.After screening the radiation types and radiation levels,the performance and comprehensive performance of the single group met the requirements of excellent evaluation.The results of the comparison show that,the personal dose monitoring system of our laboratory runs well,and the monitoring technology meets the performance requirements of personal dose monitoring of external exposure.
作者
王彦梅
江松
王桂敏
李燕
WANG Yanmei;JIANG Song;WANG Guimin;LI Yan(Songjiang District Center for Disease Control and Prevention,Shanghai 201620)
出处
《辐射防护通讯》
2024年第3期26-31,共6页
Radiation Protection Bulletin
基金
上海市公共卫生三年行动计划重点学科项目(GWVI-11.1-40)。
关键词
个人剂量
监测能力
比对
鉴别式剂量计
individual dose
monitoring ability
comparison
assessment
