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Classification of Radiation Work in Korean Nuclear Power Plants

  • Changju Song (Department of Nuclear Engineering, Chosun University) ;
  • Tae Young Kong (Department of Nuclear Engineering, Chosun University) ;
  • Seongjun Kim (Department of Nuclear Engineering, Chosun University) ;
  • Jinho Son (Department of Nuclear Engineering, Chosun University) ;
  • Hwapyoung Kim (Department of Nuclear Engineering, Chosun University) ;
  • Jiung Kim (Department of Nuclear Engineering, Chosun University) ;
  • Hee Geun Kim (Division of Energy & Electrical Engineering, Uiduk University)
  • 투고 : 2023.07.14
  • 심사 : 2023.09.06
  • 발행 : 2023.09.30

초록

The classification of the radiation work performed in Korean nuclear power plants (NPPs) must be understood to provide workers with more comprehensive radiation protection. This study used annual reports on occupational exposure to investigate and analyze the similarities and differences in the radiation work performed in Korean NPPs with pressurized water reactors (PWRs) and pressurized heavy water reactors (PHWRs). The results showed that the radiation work performed in Korean NPPs could be classified into three categories. Category 1 contains work at the highest level. This work can be divided into individual tasks belonging to Category 2, which enables the evaluation of the radiation dose during the work. The work in Category 2 consists of tasks from Category 3, which contains basic detailed tasks that are not further subdivided. This study emphasized the need for the systematic management of the radiation work performed in both Korean PWRs and PHWRs, such as the tasks in Category 3, which are similar, with similar working conditions, for PWRs and PHWRs. It also suggested the need to establish a list of radiation work for decommissioning because Kori Unit 1 and Wolsong Unit 1 are currently in permanent shutdown and preparations are being made for their decommissioning.

키워드

과제정보

This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korean Government (MEST) (No. RS-2022-00144506).

참고문헌

  1. Korea Hydro & Nuclear Power. Nuclear Power Plant Status. 2022. KHNP; Gyeongju, Korea: updated Dec 2022;[cited Dec 2022]. Available from: https://npp.khnp.co.kr/index.khnp?menuCd=DOM_000000102002001001 
  2. Korea Hydro & Nuclear Power. 2022. Annual Report of Occupational Exposure in Nuclear Power Plants in 2021. KHNP; Gyeongju, Korea: 2022-50207525-Jeong-0227, 2022. 
  3. Kong TY, Kim SY, Jung Y, Kim JM and Cho M. 2021. Administrative dose control for occupationally-exposed workers in Korean nuclear power plants. Nucl. Eng. Technol. 53(1):351-356. https://doi.org/10.1016/j.net.2020.06.023 
  4. International Committee on Radiological Protection. 2007. The 2007 Recommendation of the International Committee on Radiological Protection, ICRP Publication 103, Elsevier, Oxford, UK, 2007. 
  5. Korea Hydro & Nuclear Power. 2013. Annual Report of Occupational Exposure in Nuclear Power Plants in 2012. KHNP; Gyeongju, Korea: 2013. 
  6. Kim HP, Kong TY, Kim SJ, Son JH, Choi WS, Song CJ and Kim HG. 2022. Analysis of Korean Safety Evaluation Criteria for Dismantling Nuclear Power Plants Using the IAEA Guidance for Safety Assessment. J. Radiat. Ind. 16(3):191-199, 2022. https://doi.org/10.23042/radin.2022.16.3.191 
  7. Ahn SH. 2022. Screening and inspection experiences of steam generator exchange. Nuclear Safety & Security Information Conference. Daejeon, Republic of Korea, June 10, 2022. Available from: https://nsic.nssc.go.kr/conference/nssic.do?yyyy=2022# 
  8. Kim YH. 2008. Aging phenomenon of pressurized heavy water reactor and fuel development. Electric Power Technology Trend 8(4):65-68.