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[目的]探讨放射诊疗工作人员外照射个人剂量水平的变化趋势和可能影响因素。[方法]采用热释光个人剂量计常规监测方法,对上海某医院放射诊疗工作人员在2000—2011年的外照射个人剂量水平监测结果进行统计分析,共计1200人次。[结果]2000—2011年12年间该医院放射诊疗工作人员的人均年有效剂量为0.22～0.44mSv/a,年均有效剂量中位数为0.25mSv/a,其中核医学放射工作人员的年均有效剂量最高,为0.52mSv/a。但各工种放射工作人员的剂量水平普遍低于国家标准规定的年均有效剂量限值和上海市及全国平均水平。[结论]该医院放射工作人员的年均有效剂量低于国家标准规定的个人剂量限值。
[Objective] To explore the changing trend and possible influencing factors of personal dose level of radiotherapy staff. [Methods] The routine monitoring of personal dosimeter with thermoluminescence was used to conduct a statistical analysis on the monitoring results of the individual dose level of radiation exposure in Shanghai from 2000 to 2011, a total of 1,200 person-times. [Results] The average annual effective dose of radiation medical staff in this hospital during the 12 years from 2000 to 2011 was 0.22 ~ 0.44mSv / a, and the median annual effective dose was 0.25mSv / a. Among them, the average annual average radiation dose of nuclear medicine workers was The highest effective dose, 0.52mSv / a. However, the dose levels of radiographers in each type of work are generally lower than the annual average effective dose limits stipulated by the national standards and the average level of Shanghai and the whole country. [Conclusion] The average effective dose of radiation workers in this hospital is lower than the individual dose limit stipulated by national standards.