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| Analysis of individual dose monitoring results of radiation workers in Yunfu City from 2013 to 2018 |
| CHEN Xiaoyue, CHEN Jichao, SU Xiaotang, HUANG Qinhai |
| Yunfu Center for Disease Control and Prevention, Yunfu 527300 China |
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Abstract Objective To analyze and evaluate the results of personal dose monitoring of radiation workers in Yunfu City to provide reference for the regulatory authorities and radiation work units in formulating relevant management measures. Methods Detected the individual doses of medical radiation workers by thermoluminescence measuring method and analyzed the results of individual dose monitoring in Yunfu City from 2013 to 2018. Results From 2013 to 2018, a total of 2043 radiation workers in Yunfu City conducted personal dose monitoring for occupational external exposure, with an overall monitoring rate of 95.7% and an annual effective dose per capita of 0.28 mSv/a. Interventional radiology and nuclear medicine workers had a higher annual effective dose per capita of 0.33 mSv/a and 0.32 mSv/a, respectively, with statistically significant differences between the different types of workers (P < 0.05). The annual effective dose per capita of radiology staff varies among the level of the unit, with the highest value (0.35 mSv/a) in township-level units and the lowest value (0.22 mSv/a) in mining enterprises, with a statistically significant difference (P < 0.05). Conclusion The average annual individual effective dose of radiation staffs in Yunfu from 2013 to 2018 are in line with national health standards, It is recommended that the supervision and training of radiation workers in positions of interventional radiology, nuclear medicine and township level units should be strengthened.
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Received: 25 March 2020
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