Organ dose reconstruction for the radiation epidemiological study of Korean radiation workers: The first dose evaluation for the Korean Radiation Worker Study (KRWS)open access
- Authors
- Kwon, Tae-Eun; Jeong, Areum; Ha, Wi-Ho; Lee, Dalnim; Seo, Songwon; Cho, Junik; Kim, Euidam; Chung, Yoon sun; Park, Sunhoo
- Issue Date
- Feb-2023
- Publisher
- KOREAN NUCLEAR SOC
- Keywords
- Radiation health risk; Occupational exposure; Personal dose equivalent; Organ absorbed dose
- Citation
- NUCLEAR ENGINEERING AND TECHNOLOGY, v.55, no.2, pp.725 - 733
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- NUCLEAR ENGINEERING AND TECHNOLOGY
- Volume
- 55
- Number
- 2
- Start Page
- 725
- End Page
- 733
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185199
- DOI
- 10.1016/j.net.2022.10.030
- ISSN
- 1738-5733
- Abstract
- The Korea Institute of Radiological and Medical Sciences has started a radiation epidemiological study, titled “Korean Radiation Worker Study,” to evaluate the health effects of occupational exposure to radiation. As a part of this study, we investigated the methodologies and results of reconstructing organ-specific absorbed doses based on personal dose equivalent, Hp(10), reported from 1984 to 2019 for 20,605 Korean radiation workers. For the organ dose reconstruction, representative exposure scenarios (i.e., radiation energy and exposure geometry) were first determined according to occupational groups, and dose coefficients for converting Hp(10) to organ absorbed doses were then appropriately taken based on the exposure scenarios. Individual annual doses and individual cumulative doses were reconstructed for 27 organs, and the highest values were observed in the thyroid doses (on average 0.77 mGy/y and 10.47 mGy, respectively). Mean values of individual cumulative absorbed doses for the red bone marrow, colon, and lungs were 7.83, 8.78, and 8.43 mSv, respectively. Most of the organ doses were maximum for industrial radiographers, followed by nuclear power plant workers, medical workers, and other facility workers. The organ dose database established in this study will be utilized for organ-specific risk estimation in the Korean Radiation Worker Study.
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