2013-2016年度宁夏核医学放射工作人员个人剂量监测结果分析

Monitoring results of individual dose of nuclear workers in Ningxia during 2013-2016

目的全面了解和掌握宁夏地区核医学放射工作人员受照剂量水平,保护放射工作人员健康,发现辐射防护中的薄弱环节,预防职业性放射性疾病。方法采用热释光个人剂量测量方法,对2013-2016年核医学放射工作人员进行监测并对结果进行分析。结果 2013-2016年共对核医学放射工作人员监测了364人次,人均年有效剂量分别为0. 99、1. 76、1. 19、1. 06 m Sv/a;人均年有效剂量排前三位的核医学放射工作人员岗位的分别为技师(1. 6 m Sv/a)、医师(1. 32 m Sv/a)和物理师(1. 24 m Sv/a)。结论宁夏地区核医学放射工作人员人均年有效剂量仅次于介入放射学放射工作人员,位列所有放射工作人员职业类别第二位。除要加强核医学科本身辐射场所防护和监测外,还应根据不同岗位人员合理分配工作内容和调配工作量,从而更好地保护放射工作人员,避免过高的剂量照射。

Objective To learn and master the radiation dose of nuclear workers in Ningxia region,protect the health of radiation workers,discover the weak links in radiation protection,and prevent occupational radiation diseases. Methods Thermoluminescence personal dose measurement method was applied to monitor the nuclear medicine radiation workers from 2013 to 2016 and analyzed the results. Results In 2013-2016,a total of 364 person-times were monitored for nuclear medicine radiation workers. The per capita annual effective doses were 0. 99 m Sv/a,1. 76 m Sv/a,1. 19 mSv/a,and 1. 06 m Sv/a respectively;The top three nuclear workers were technician( 1. 6 m Sv/a) physician( 1. 32 m Sv/a) and physicist( 1. 24 m Sv/a).Conclusion The per capita annual effective dose of nuclear workers in Ningxia second to the interventional radiological radiologists,it ranks second in the occupational category of all radiological workers. We should strength the radiation protection and monitoring and it is necessary to rationally arrange work according to personnel in different works so as to protect radiation workers and avoid excessive dose exposure.