宁夏2018参加全国个人剂量监测系统盲样比对结果分析

目的 通过参加全国放射工作人员个人剂量监测系统盲样比对，了解本省实验室个人剂量监测系统运行状况，提高监测能力和水平。方法 按照《2018年度全国个人剂量监测能力考核方案》要求准备热释光剂量计，邮寄回考核组盲样照射后，由参加比对实验室检测并进行数据分析。结果 本次5组比对结果单组性能偏差在-0.07～0.02（均符合|P_i| ≤ 0.10），同时综合性能偏差B²+S² ≤ 0.30，故而实验得70满分，因检测报告得9分，总分未达到评定优秀的要求，本实验室个人剂量监测系统盲样比对结果为合格。结论 宁夏本实验室个人剂量监测系统运行良好，检测结果准确、误差范围较小，可满足国家职业性外照射个人剂量监测相关标准要求。

Analysis on the result of the 2018 national individual does monitoring system blind sample comparison in Ningxia

Objective Through participating in the blind sample comparison of the national personal dose monitoring system for radiation workers, to understand the operation status of personal dose monitoring system of the provincial laboratory, and improve the monitoring ability and level.Methods According to the requirements of the national personal dose monitoring ability assessment program in 2018, to prepare the thermoluminescent dosimeter, mail them back to the assessment group for blind sample irradiation, and then participate in the comparison laboratory inspection test and analyze the data.Results In the comparison results of the 5 groups, the performance deviation of single group in 5 groups of comparison results is - 0.07～0.02 (all in line with |P_i| = 0.10), and the comprehensive performance deviation is B² + S² ≤ 0.30, so the experiment got a full score of 70. As the test report got 9 points, the total score did not meet the requirements of excellent evaluation, the blind sample comparison result of personal dose monitoring system in this laboratory is qualified.Conclusion The personal dose monitoring system of our laboratory in Ningxia is in good operation, the test results are accurate and the error range is small, and which can meet the relevant national standards for personal dose monitoring of occupational external exposure.