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目的通过参加全国放射工作人员个人剂量监测比对,提高个人剂量监测水平。方法把经过退火的七组剂量计寄到中国疾病预防控制中心辐射防护与核安全医学所,①~⑤号为盲样组,其中①③④号采用γ射线照射,②⑤号采用X射线照射,⑥号为跟随本底,⑦号为备用剂量计,照射后的剂量计寄回实验室检测。结果五组盲样检测结果与照射剂量的相对偏差≤0.4,且综合性能指标≤0.4,均符合个人监测比对判定标准。结论本中心个人剂量系统性能符合检验要求。
Objective To improve the level of personal dose monitoring by participating in the individual dose monitoring and comparison of radiation workers across the country. Methods Seven groups of dosimeters after annealing were sent to the Institute of Radiation Protection and Nuclear Safety of Chinese Center for Disease Control and Prevention. ① ~ ⑤ were blind-like groups, among which ①③④ were irradiated with γ-rays, ②⑤ were irradiated with X-rays and ⑥ To follow the background, ⑦ number for the standby dosimeter, irradiated dose meter back to the laboratory testing. Results The relative deviation between the blind sample test results and the irradiation dose was less than 0.4, and the overall performance index ≤0.4, all of which met the criteria of personal monitoring and comparison. Conclusion The personal dose system performance of the center meets the inspection requirements.