2011-2015年本溪市医疗系统放射工作人员外照射个人剂量检测结果分析

目的 了解和掌握本溪市医疗系统近五年放射工作人员外照射个人剂量情况及不同类别医疗机构人均年剂量当量的差别。方法 以2011-2015年我市医疗系统从事放射工作人员的个人剂量检测结果为研究对象，用回顾性分析法对有关数据进行统计分析。结果 2011-2015年期间我市医疗系统从事放射工作的总人数为2093人，总有效剂量为698.06 mSv，人均年剂量当量为0.334 mSv/a。通过对不同类别的医院进行人均年剂量当量的比较得出：县区医疗机构 > 企业医疗机构 > 私营医疗机构 > 市直医疗机构 > 乡镇医疗机构。结论 我市医疗系放射工作人员，其外照射个人剂量水平均在国家标准的限值以内。

Analysis on the individual doses of radiation workers in medical system of Benxi City from 2011 to 2015

Objective To acquaintance the personal external doses in medical system in Benxi during the previous five years, and to grasp the differences among different medical institutions.Methods Taking the results of the personal dose in our city's medical system during 2011 to 2015 as research objects, and statistically ananlyze the related data by retrospective method.Results From 2011 to 2015, the total number of radiation workers was 2093 person-year. The total collective dose was 698.06 mSv, and the annual average dose was 0.334 mSv/a. As for the annual average dose in different medical institutions, the descend order was county-level, enterprise, private, city-level and township.Conclusion In the medical system of our city, the level of occupational external exposure to radiation workers was under the national standard.