Analysis of individual dose monitoring results for medical radiation workers from occupational external exposure in Inner Mongolia from 2015 to 2019
10.3760/cma.j.issn.0254-5098.2021.02.005
- VernacularTitle:2015—2019年内蒙古地区部分医学应用放射工作人员职业性外照射个人剂量监测结果与分析
- Author:
Xiao XU
;
Xiang LIU
;
Jie ZHANG
;
Qi CHEN
;
Shengnan FAN
;
Jun DENG
- From:
Chinese Journal of Radiological Medicine and Protection
2021;41(2):104-109
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To understand and analyze the levels of individual dose to medical radiation workers from occupational external exposure in Inner Mongolia autonomous region from 2015 to 2019, with a view to provide basic scientific data for workers′ health protection and radiation protection management.Methods:By using National Individual Dose Registry, the individual dose monitoring result and other related data for medical workers were collected and analyzed.Results:The average annual individual doses to medical radiation workers in a time order from 2015 to 2019 were 0.72, 0.87, 0.88, 0.71 and 0.64 mSv, respectively. There were significant differences in the annual effective dose distribution in diagnostic radiology, dental radiology, nuclear medicine, radiotherapy, interventional radiology and other applications ( H=466.56, P<0.05). The average annual effective doses to workers in interventional radiology and nuclear medicine had not shown significant difference ( P>0.05), but significantly higher than those in other occupational categories ( Z=19.95, 9.87, 10.10, 12.76, P<0.05). Conclusions:The average annual effective dose to medical radiation workers is in accordance with the relevant national standards. The dose values for the radiation workers involved in interventional radiology and nuclear medicine are relatively high, especially for interventional radiology workers and radioactive drug operators. The protection measures should be further improved in radiation protection workplace.
