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Abstract

After the Fukushima accident in Japan, the Korean Government implemented the "Act on Protective Action Guidelines Against Radiation in the Natural Environment" to regulate unnecessary radiation exposure to the public. However, despite the law which came into effect in July 2012, an appropriate method to evaluate the equivalent and effective doses from naturally occurring radioactive material (NORM) in consumer products is not available. The aim of the present study is to develop and validate an effective dose coefficient database enabling the simple and correct evaluation of the effective dose due to the usage of NORM-added consumer products. To construct the database, we used a skin source method with a computational human phantom and Monte Carlo (MC) simulation. For the validation, the effective dose was compared between the database using interpolation method and the original MC method. Our result showed a similar equivalent dose across the 26 organs and a corresponding average dose between the database and the MC calculations of < 5% difference. The differences in the effective doses were even less, and the result generally show that equivalent and effective doses can be quickly calculated with the database with sufficient accuracy.

Author information

Yoo DH1, Shin WG1, Lee J2, Yeom YS3, Kim CH3, Chang BU2, Min CH4.

1Department of Radiation Convergence Engineering and Research Institute of Health Science, Yonsei University, Wonju, Republic of Korea.2Korea Institute of Nuclear Safety, Daejeon, Republic of Korea.3Department of Nuclear Engineering, Hanyang University, Seoul, Republic of Korea.4Department of Radiation Convergence Engineering and Research Institute of Health Science, Yonsei University, Wonju, Republic of Korea. Electronic address: chmin@yonsei.ac.kr.