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目的了解宁夏省级医疗机构及部分企业放射工作人员受照剂量水平。方法按照GBZ 128-2002《职业性外照射个人剂量监测规范》的方法进行,对2014年和2015年宁夏省级医疗机构及部分企业个人剂量监测结果进行统计分析。结果两年共监测放射诊疗职业人员1475人,其中从事牙科放射学人员受照剂量最高达2.33 mSv/a,最低的是从事石油和天然气工业工作人员受照剂量为0.64 mSv/a,两年人均年有效剂量为1.29 mSv/a均低于最优化水平(国家标准规定年剂量限值的1/10)。结论绝大多数宁夏省级医疗机构及部分企业放射工作人员的工作环境是安全的。
Objective To understand the dose levels of radiation workers in Ningxia provincial medical institutions and some enterprises. Methods According to GBZ 128-2002 “Occupational exposure to personal dose monitoring norms” approach, 2014 and 2015, Ningxia provincial-level medical institutions and some enterprises personal dose monitoring results were statistically analyzed. Results A total of 1,475 radiation medical professionals were monitored during the two years. The highest dose of dental workers who received dental radiation was 2.33 mSv / a, the lowest was 0.64 mSv / a for oil and natural gas workers, The annual effective dose of 1.29 mSv / a is lower than the optimal level (the national standard annual dose limit of 1/10). Conclusions The working environment of the vast majority of radiological workers in Ningxia provincial medical institutions and some enterprises is safe.