Analysis of personal dose monitoring results of occupational external exposure for radiation workers in some medical institutions in Tianjin from 2014 to 2018
10.3760/cma.j.issn.1001-9391.2019.12.004
- VernacularTitle: 2014~2018年天津市部分医疗机构放射工作人员职业性外照射个人剂量监测结果分析
- Author:
Haitao FENG
1
;
Zhong SUN
2
Author Information
1. School of Public Health, Tianjin Medical University, Tianjin 300070, China; Xiqing District, Center for Disease Control and Prevention, Tianjin 300112, China
2. School of Public Health, Tianjin Medical University, Tianjin 300070, China
- Publication Type:Case Reports
- Keywords:
Radiological medical staff;
Occupational external exposure;
Individual dose;
Monitoring
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2019;37(12):896-899
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the personal dose of radiation exposure of radiation workers in some medical institutions in Tianjin, and to provide reference for radiation protection work.
Methods:Using cluster sampling method, 8718 radiation workers from some medical institutions (including tertiary, secondary and first-level hospitals) in Tianjin from 2014 to 2018 were selected as the subjects of investigation. Monitoring data were collected, analyzed and evaluated.
Results:From 2014 to 2018, a total of 8718 persons were monitored, with 14 persons (0.2%) whose annual effective dose was higher than 5 mSv; 8661 persons (99.3%) whose annual effective dose was lower than 2 mSv; 43 persons (0.5%) whose annual effective dose per capita was the highest in diagnostic radiology, which was 0.22 mSv; the annual effective dose per capita of radiation workers in primary and secondary hospitals was higher than that in tertiary hospitals; and the abnormal rate of individual dose monitoring was 73. Personnel, accounting for 0.8% of the total number of monitored personnel; the annual effective dose changes of the four types of radiation workers monitored from 2014 to 2018 showed a downward trend, and the annual effective dose of the four types of radiation workers in 2014 was the highest.
Conclusion:Personal dosage of radiation workers in some medical institutions in Tianjin is at a low level, and attention should be paid to diagnostic radiology workers.
