福建省部分PET/CT放射工作人员职业受照剂量分析

目的 分析评估福建省PET/CT放射工作人员的职业受照剂量。方法 根据福建省2014-2016年5家PET/CT工作场所周围剂量当量率和放射工作人员个人剂量的监测结果，分析PET/CT放射工作人员职业受照剂量，并与国家标准剂量限值进行比较。结果 放射工作人员人均年有效剂量为0.50 mSv，所有放射工作人员年有效剂量均低于5 mSv。从事放射性药物分装、注射和PET/CT同室摆位作业的放射工作人员，在未采取个人防护措施的情况下，手部、头颈部和胸部位置最大年受照剂量估算值分别为549.0、137.4、134.0 mSv。结论 在正常工作条件下，放射工作人员职业受照剂量处于较低水平，符合相关标准要求。未采用有效的个人防护措施时，放射工作人员的职业受照剂量可超过国家标准职业照射限值。

Analysis of occupational exposure dose for some workers in PET/CT radiology departments of Fujian

Objective Analysis and evaluation of occupational exposure dose for workers in PET/CT radiology departments of Fujian.Methods According to the monitoring results of ambient dose equivalent rate and personal dose equivalent of radiation works around 5 PET/CT workplaces in Fujian from 2014 to 2016, The occupational exposure doses of PET/CT radiation workers were analyzed and compared with the national standard dose limit.Results The average annual individual effective dose of radiation workers was 0.50 mSv, and the annual effective dose of all radiation workers was less than 5 mSv. Without personal protection measures, the estimated annual maximum radiation doses for hand, head, neck and chest positions of radiation workers engaged in radiopharmaceuticals, injection and PET/CT co-room positioning were 549.0, 137.4 and 134.0 mSv, respectively.Conclusion Under the normal working conditions, the occupational exposure dose of radiation workers is at a low level, which meets the relevant requirements. Without effective personal protective measures, the occupational exposure dose of radiation workers will exceed the national standard on occupational exposure limit.