Nuclear Engineering and Technology

  • 제53권1호
  • /
  • Pages.351-356
  • /
  • 2021
  • /
  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Administrative dose control for occupationally-exposed workers in Korean nuclear power plants

  • Kong, Tae Young (Department of Nuclear Engineering, Chosun University) ;
  • Kim, Si Young (Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.) ;
  • Jung, Yoonhee (Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.) ;
  • Kim, Jeong Mi (Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.) ;
  • Cho, Moonhyung (Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.)
  • 투고 : 2019.12.05
  • 심사 : 2020.06.15
  • 발행 : 2021.01.25
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초록

Korean nuclear power plants (NPPs) have various radiation protection programs to attain radiation exposure as low as reasonably achievable (ALARA). In terms of ALARA, this paper provides a comprehensive overview of administrative dose control for occupationally-exposed workers in Korean NPPs. In addition to dose limits, administrative dose constraints are implemented to resolve an inequity of radiation exposure in which some individuals in NPPs receive relatively higher doses than others. Occupational dose constraints in Korean NPPs are presented in this paper with the background of how those values were determined. For pressurized water reactors, 80% and 90% of the annual average limit for an effective dose, 20 mSv/y, are set as the primary and secondary dose constraints, respectively. Pressurized heavy water reactors (PHWRs) have also established the primary and secondary dose constraints corresponding to 70% and 80% of the effective dose limit, and additional constraints for tritium concentration are provided to control internal exposure in PHWRs. Follow-up measures for exceeding these administrative dose constraints are also introduced compared to exceeding the dose limits. Finally, analysis results of dose distributions show how the implementation of administrative dose constraints impacted the occupational dose distributions in Korean NPPs during the years 2009-2018.

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참고문헌

  1. Korea Hydro, Nuclear Power Co, Rev., Radiation Exposure Management: Standard Radiation Procedure, Radiation-8353, vol. 2, KHNP, Gyeongju, Korea, 2017 ([in Korean])
  2. International Committee on Radiological Protection, The 2017 Recommendation of the International Committee on Radiological Protection, vol. 103, ICRP Publication, Elsevier, Oxford, UK, 2017.
  3. International Committee on Radiological Protection, The 1990 Recommendation of the International Committee on Radiological Protection, vol. 60, ICRP Publication, Pergamon Press, Oxford, UK, 1990.
  4. T.Y. Kong, G. Akabani, J.W. Poston, A study of a dose constraint for occupationally exposed workers in the US nuclear power plants, Radiat. Protect. Dosim. 183 (2019) 503-513. https://doi.org/10.1093/rpd/ncy170
  5. Enforcement Decree of the Nuclear Safety Act, Republic of Korea, Presidential Decree No, 2017, 27972, ([in Korean]).
  6. International Atomic Energy Agency, International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources, IAEA Safety Series No. 115, Vienna, Austria, 1996.
  7. Korea Hydro, Nuclear Power Co, [Internet], "Plant Status" [Online], Available:, KHNP, [Accessed, http://www.khnp.co.kr/eng/content/529/main.do?mnCd=EN03020101. (Accessed 10 September 2019).
  8. Korea Hydro, Nuclear Power Co, Rev., Measurement and Assessment for Internal Dose, Standard Radiation Procedure, Radiation-8320, vol. 3, KHNP, Gyeongju, Korea, 2017 ([in Korean])
  9. Nuclear Safety and Security Commission, Regulation on Assessment and Control of Individual Radiation Exposure, Notice No. 2019-8, NSSC, Seoul (Korea), 2019 ([in Korean]).
  10. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2009 ([in Korean]).
  11. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2010 ([in Korean]).
  12. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2011 ([in Korean]).
  13. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2012 ([in Korean]).
  14. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2013 ([in Korean]).
  15. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2014 ([in Korean]).
  16. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2015 ([in Korean]).
  17. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2016 ([in Korean]).
  18. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2017 ([in Korean]).
  19. Korea Hydro, Nuclear Power Co, Annual Report of Occupational Exposure in Nuclear Power Plants, KHNP, Gyeongju, Korea, 2018 ([in Korean]).