Analysis of personal dose monitoring results for radiation workers in medical institutions in Huizhou, China, 2019—2023
10.13491/j.issn.1004-714X.2024.04.009
- VernacularTitle:2019—2023年惠州市医疗机构放射工作人员个人剂量监测结果分析
- Author:
Shifeng JIANG
1
;
Lifang HUANG
1
;
Ranran LIU
1
Author Information
1. Huizhou Institute for Occupational Health, Huizhou 516001 China.
- Publication Type:OriginalArticles
- Keywords:
Personal dose monitoring;
Medical institution;
Radiation worker;
Occupational external exposure
- From:
Chinese Journal of Radiological Health
2024;33(4):404-408
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the levels and trends of personal doses of occupational external exposure among radiation workers in medical institutions in Huizhou City and to improve radiation protection management. Methods Thermoluminescent dosimetry was employed to monitor the personal doses of occupational external exposure of radiation workers over monitoring cycles spanning three months each. Results From 2019 to 2023, a total of 25 796 monitoring instances were recorded for radiation workers in medical institutions in Huizhou City. Diagnostic radiology workers accounted for the largest proportion of workforce in the occupational categories, followed by interventional radiology workers. The average annual effective dose per person ranged from 0.21 to 0.30 mSv, with an average of 0.26 mSv. The majority of annual effective dose per person was below 1.0 mSv, with no instances exceeding 20 mSv. Among all occupational categories, nuclear medicine workers had the highest average annual effective dose per person at 0.43 mSv, followed by interventional radiology workers at 0.37 mSv. There was a significant difference in the average annual effective dose per person among different occupational categories (P < 0.05), with nuclear medicine and interventional radiology workers having higher doses than workers in diagnostic radiology, dental radiology, and other applications (all P < 0.05). Conclusion The personal dose monitoring results for radiation workers in medical institutions in Huizhou City are at low levels, indicating that the radiation protection in the local medical institutions is sufficient and can effectively protect the occupational health of radiation workers.
