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KMID : 0364920230480030162
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Journal of Radiation Protection and Research
2023 Volume.48 No. 3 p.162 ~ p.166
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Personal Dosimeters Worn by Radiation Workers in Korea: Actual Condition and Consideration of Their Proper Application for Radiation Protection
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Noh Eun-Bi
Lee Dal-Nim
Park Sun-Hoo
Seo Song-Won
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Abstract
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Background : Assessment of the radiation doses to which workers are exposed can differ depending on the placement of dosimeters on the body. In addition, it is affected by whether the placement is under or over a shielding apron. This study aimed to evaluate the actual positioning of personal dosimeters on the body, with or without shielding aprons, among radiation workers in Korea.
Materials and Methods : We analyzed the survey data, which included demographic characteristics, such as sex, age, occupation, work history, and placement of the personal dosimeter being worn, from a cohort study of Korean radiation workers. We assessed the use of personal dosimeters among workers, stratified by sex, age, working period, starting year of work, and occupation.
Results and Discussion : Overall, high compliance (89.1% to 99.0%) with the wearing of dosimeters on the chest was observed regardless of workers’ characteristics, such as age, sex, occupation, and work history. However, the placement of dosimeters, either under or over the shielding aprons, was inconsistent. Overall, 40.1% of workers wore dosimeters under their aprons, while the others wore dosimeters over their aprons. This inconsistency indicates that radiation doses are possibly measured differently under the same exposure conditions solely owing to variations in the placement of worn dosimeters.
Conclusion : Although a lack of uniformity in dosimeter placement when wearing a shielding apron may not cause serious harm in radiation dose management for workers, the development of detailed guidelines for dosimeter placement may improve the accuracy of dose assessment.
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KEYWORD
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Radiation Monitoring, Radiation Dosimeter, Radiation Protection, Occupational Safety
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