目的 分析某三甲医院放射工作人员外照射个人剂量监测结果,为放射防护工作提供参考。方法 选择某三甲医院不同工作岗位的放射工作人员作为研究对象,收集2009-2018年共3 541人次个人剂量监测结果,分析不同年份、不同工作岗位的放射工作人员年集体有效剂量和人均年有效剂量。结果 2009-2018年集体有效剂量为239.66人· mSv,人均年有效剂量为0.07 mSv/年。不同工作岗位的放射工作人员人均年有效剂量比较,差异有统计学意义(H=198.201,P<0.001)。介入放射学工作人员人均年有效剂量最高(0.13 mSv/年),其次是核医学科放射工作人员(0.10 mSv/年)。结论 该院放射工组人员个人剂量总体处于较低水平,需重点关注核医学科及介入放射科工作人员的剂量水平。

Objective To analyze the monitoring results of individual dose of external exposure of radiation workers in a tertiary hospital and provide important reference for radiation protection. Methods Radiation workers in different posts of a tertiary hospital were selected as the research objects.The monitoring results of 3541 personal dose from 2009 to 2018 were collected, and the annual collective effective dose and per capita annual effective dose of radiation workers in different years and different posts were analyzed. Results The total annual collective effective dose from 2009 to 2018 was 239.66 person · mSv, and the per capita dose was 0.07 mSv/year.The difference was statistically significant in different types of work (H=198.20, P<0.001).The per capita annual effective dose of interventional radiology workers was the highest (0.13 mSv/ year), followed by nuclear medicine workers (0.10 mSv/year). Conclusion Most of the radiation workers have law individual dose level in the hospital.It is necessary to pay more attention to the dose level of nuclear medicine department and interventional radiology department.