2011-2015年四川省介入放射工作人员个人剂量水平分析

Personal Doses of Interventional Radiology Workers in Sichuan Province From 2011 to 2015

目的了解四川省2011-2015年介入放射工作人员个人剂量水平,评价放射防护状况。方法采用LiF(Mg,Cu,P)热释光个人剂量计(TLD)定期监测,建立监测数据库并使用SPSS软件分析,依据国家相关标准进行评价。结果 2011-2015年介入放射工作人员人年均有效剂量分别为1.10、0.64、0.63、0.76和0.61 mSv/a,平均为0.68 mSv/a;5年中有282人个人剂量检测数据异常增高,其中14人的剂量超过国家标准年剂量限值;有1个市州人年均有效剂量超过5.0mSv/a。结论四川省介入放射人员工作条件和环境是安全的,但放射防护工作还有待进一步提高。

Objective To understand the personal doses of interventional radiology workers in Sichuan province from 2011 to 2015 and to evaluate radiological protection. Methods Regular monitoring was conducted using LiF（ Mg,Cu,P） thermoluminescent dosemeter（ TLD） to establish a monitoring database of personal doses.SPSS software was used to process analysis according to the national standards. Results From 2011 to 2015,annual dose per capita of operators were 1. 10,0. 64,0. 63,0. 76 and 0. 61 mSv·a^（-1） respectively,the average was 0. 68 mSv· a^（-1）; in 5 years,there were 282 individual dose detection datas abnormal increased,among them,the dose of 14 people exceeded the national standard annual dose limit; there was one city state with a per capita annual dose of more than 5. 0 mSv·a^（-1）. Conclusion the work conditions and the environment is safe in Sichuan Province,but the radiation protection work remains to be further improved.