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Abstract
This study aimed to estimate the radiation organ doses from occupational exposure in 94 396 Korean medical radiation workers. Data on badge doses (i.e. personal dose equivalent at 10 mm) between 1996 and 2011 obtained from a national dosimetry registry, survey data from 2012 to 2013, and organ dose conversion coefficients provided by the International Commission on Radiological Protection (ICRP) were used for the estimation. The highest mean cumulative badge doses (26.87 mSv) were observed in radiologists, followed by radiologic technologists (15.96 mSv). Male workers exhibited higher mean cumulative badge doses, across occupational groups. The estimated organ doses showed similar trends with those of badge doses. Organs located outside the apron's coverage such as the thyroid showed higher mean organ doses than those protected by the apron. Our findings could contribute to future radiation epidemiologic studies to investigate health effects from occupational radiation exposure in Korea.

Author information

Choi Y1, Shil Cha E1, Jin Bang Y1, Ko S1, Ha M2, Lee C3, Jin Lee W1.
1
Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea.
2
Department of Preventive Medicine, Dankook University College of Medicine, Cheonan, Korea.
3
Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Shady Grove, MD, USA.