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High-radiation-exposure work in Korean pressurized water reactors

  • 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) ;
  • Jaeok Park (Department of Nuclear Engineering, Chosun University) ;
  • Hee Geun Kim (Division of Energy & Electrical Engineering, Uiduk University) ;
  • Yongkwon Kim (Nucare Inc.)
  • 투고 : 2023.11.02
  • 심사 : 2023.12.23
  • 발행 : 2024.05.25

초록

Owing to strict radiation safety management in Korean nuclear power plants (NPPs), most radiation workers receive very low radiation doses, even lower than the annual dose limit for the general public. However, the occupational dose distribution indicates that some Korean NPP workers receive a relatively higher dose than the average dose. This inequity in radiation exposure could be reduced by providing customized radiation protection measures, such as dose constraints, to workers receiving relatively higher doses. In this study, dose normalization was performed to identify the highest radiation exposure work in Korean pressurized water reactors (PWRs). The results show that most of the occupational exposure in Korean PWRs occurs during the planned maintenance period. Finally, the three highest radiation exposure tasks in Korean PWRs were identified: nozzle dam installation and removal, eddy current testing, and man-way opening and closing.

키워드

과제정보

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

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