Organ dose reconstruction for the radiation epidemiological study of Korean radiation workers: The first dose evaluation for the Korean Radiation Worker Study (KRWS)
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
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 organspecific 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
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 organspecific 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
참고문헌 (28)
- Deriving organ doses and their uncertainty for epidemiologic studies (with a focus on the one Million U.S. Workers and Veterans study of low-dose radiation health effects), "National Council on Radiation Protection and Measurements", National Council on Radiation Protection and Measurements, 1~338, pp.Report No. 178 (2018)
- I. Thierry-Chef, "Dose estimation for a study of nuclear workers in France, the United Kingdom and the United States of America: methods for the International Nuclear Workers Study (INWORKS)", Radiat. Res, 183(6), pp.632~642 (2015)
- E. Cardis, "The 15-Country collaborative study of cancer risk among radiation workers in the nuclear industry : estimates of radiation-related cancer risks", Radiat. Res, 167(4), pp.396~416 (2007)
- K. Yoshimoto, "Occupational radiation exposure and leukemia mortality among nuclear workers in Japan: JEPISODE, 1991-2010", Japanese J. Health Phys, 53(3), pp.146~153 (2018)
- S. Seo, "Assessing the health effects associated with occupational radiation exposure in Korean radiation workers: protocol for a prospective cohort study", BMJ Open, 8(3), pp.e017359~ (2018)
- I. Thierry-Chef, "The 15-Country collaborative study of cancer risk among radiation workers in the nuclear industry : study of errors in dosimetry", Radiat. Res, 167(4), pp.380~395 (2007)
- S. Park, "A cohort study of Korean radiation workers : baseline characteristics of participants", Int. J. Environ. Res. Publ. Health, 17(7), pp.2328~ (2020)
- International Commission on Radiological Protection, "Conversion coefficients for radiological protection quantities for external radiation exposures", ICRP (Int. Comm. Radiol. Prot.) Publ, 116(2-5), pp.40~ (2010)
- C. Yeong Ho, "INSTORE : a PC-based database program for occupational radiation exposure of a nuclear power plant", Nucl. Eng. Technol, 30(4), pp.308~317 (1998)
- 임영기, "국내 원전 종사자의 방사선량 : 2009-2013", 방사선방어학회지, 40(3), pp.162~167 (2015), 테스트학회
- J. K. Kim, "Development of the Radiation Field Measurement and Dose Assessment Technology at NPPs" (2005)
- 김정인, "국내 가압경수로형 원전 계획예방정비기간 주요 방사선작업에 대한 납 차폐복 선량저감효과 분석", 방사선방어학회지, 38(4), pp.237~241 (2013), 테스트학회[DOI]
- M. J. Song, "Radiation field in PWR plants", J. Radiat. Prot, 17(2), pp.61~70 (1992)
- J. -H. Moon, "Analysis of Technologies and Experiences for Reducing Occupational Radiation Dose and Study for Applying to Regulations" (2003)
- International Atomic Energy Agency, "Manual on Gamma Radiography", pp.7~56 (1996)
- 동경래, "방사선 취급 작업종사자의 개인 피폭선량(Individual Dose)에 관한 연구", 한국실내환경학회지, 6(1), pp.38~47 (2009), 한국실내환경학회
- Using personal monitoring data to derive organ doses for medical radiation workers, with a focus on lung, "National Council on Radiation Protection", 32~37, pp.NCRP Commentary No 30 (2020)
- (2011)[URL]
- Information analysis and Management for safety regulation on radiation workers, "Korea Institute of Nuclear Safety", ~, pp.KINS (2015), ER- 190 (6)
- Survey on the Status of Radiation, "RI Utilization in 2017", Korea Association for Radiation Application, 2019
- International Commission on Radiological Protection, "Conversion coefficients for use in radiological protection against external radiation", ICRP (Int. Comm. Radiol. Prot.) Publ. 74, 74(3-4), pp.26~ (1996)
- International Commission on Radiological Protection, "Adult reference computational phantoms", ICRP(Int. Comm. Radiol. Prot. )Publ, 110(2), pp.39~ (2009)
- K. G. Veinot, "Organ and effective dose coefficients for cranial and caudal irradiation geometries : photons", Radiat. Protect. Dosim, 168(2), pp.167~174 (2015)
- International Commission on Radiological Protection, "Individual monitoring for internal exposure of workers : replacement of ICRP publication 54", ICRP(Int. Comm. Radiol. Prot. )Publ, 78(3-4), pp.27~ (1997)
- S. J. Goetsch, "Calibration of 192Ir high-dose-rate afterloading systems", Med. Phys, 18(3), pp.462~467 (1991)
- International Commission on Radiological Protection, "Data for use in protection against external radiation", ICRP(Int. Comm. Radiol. Prot. )Publ, 51(2-3), pp.17~ (1987)
- Choonsik Lee, "Organ Dose Conversion Coefficients Calculated for Korean Pediatric and Adult Voxel Phantoms Exposed to External Photon Fields", 방사선방어학회지, 45(2), pp.69~75 (2020), 테스트학회
- C. Choi, "Mesh-type reference Korean phantoms (MRKPs) for adult male and female for use in radiation protection dosimetry", Phys. Med. Biol, 64(8) (2019)