Analysis of the Likelihood of Internal Radiation Exposure When Decommissioning a Nuclear Power Plant in Korea
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In Publication No. 66 of the International Commission on Radiological Protection, an activity medianaerodynamic diameter (AMAD) of 5 μm is considered in internal exposure dose assessment owing to inhalation ofradionuclides in a workplace. However, analysis of aerosols generated during dismantling experiments, such as inthe oxy-cutting of a reactor vessel conducted in Korea, revealed that the radioactive aerosols have AMAD rangingfrom 0.024 to 0.064 μm. Such extremely fine aerosols can induce internal exposure if inhaled. In particular, alpharadionuclides in aerosols can lead to significantly higher levels of radiation exposure than beta and gamma radionuclides,thus highlighting the need to establish appropriate internal exposure radiation protection programs and monitoringsystems that specifically address alpha radionuclides when decommissioning nuclear power plants in Korea.
Abstract
In Publication No. 66 of the International Commission on Radiological Protection, an activity medianaerodynamic diameter (AMAD) of 5 μm is considered in internal exposure dose assessment owing to inhalation ofradionuclides in a workplace. However, analysis of aerosols generated during dismantling experiments, such as inthe oxy-cutting of a reactor vessel conducted in Korea, revealed that the radioactive aerosols have AMAD rangingfrom 0.024 to 0.064 μm. Such extremely fine aerosols can induce internal exposure if inhaled. In particular, alpharadionuclides in aerosols can lead to significantly higher levels of radiation exposure than beta and gamma radionuclides,thus highlighting the need to establish appropriate internal exposure radiation protection programs and monitoringsystems that specifically address alpha radionuclides when decommissioning nuclear power plants in Korea.
참고문헌 (15)
- "Nuclear Power Plant Status" (2023)[URL]
- Tasks to advance the nuclear decommissioning industry, "Korea Atomic Energy Research Institute (KAERI) Nuclear Policy Research Center", ~, pp.Nuclear Energy Policy Brief Report 2018-No.5 (2018)
- Regulation on Technical Standards for Reactor Facilities, "Nuclear Safety and Security Commission(NSSC)", ~, pp.Prime Minister No. 31 (2022)
- Regulation on the Preparation of Decommissioning Plans for Nuclear Utilization, "Nuclear Safety and Security Commission(NSSC)", ~, pp.Notice of the NSSC No. 2021-10 (2021)
- A summary of the final decommissioning plan for Kori Unit 1 for public viewing by residents, "Korea Hydro and Nuclear Power (KHNP)", KHNP, ~ (2021)
- Development of Technology for Demonstration Testing of Decommissioning of Radioactive Pressure Vessels and Internal Structures (Final Report), "Korea Hydro and Nuclear Power (KHNP)", KHNP, ~ (2021)
- Alpha Monitoring and Control Guidelines for Operating Nuclear Power Stations, Revision 2, "Electric Power Research Institute (EPRI)", ~ (2013)
- Kim S. I., "A study on characteristics and internal exposure evaluation of radioactive aerosols during pipe cutting in decommissioning of the nuclear power plant", Nuclear Engineering, and Technology, 50(7), pp.1088~1098 (2018)[DOI]
- Human Respiratory Tract Model for Radiological Protection, "International Commission on Radiological Protection(ICRP)", ~, pp.ICRP Publication 66 (1994)
- M. R. Bailey, "Updating the ICRP human respiratory tract model", Radiation Protection Dosimetry, 127(1-4), pp.31~34 (2008)[DOI]
- Song J. S., "A Preliminary Study on the Evaluation of Internal Exposure Effect by Radioactive Aerosol Generated During Decommissioning of NPPs by Using BiDAS", Journal of Nuclear Fuel Cycle and Waste Technology, 16(4), pp.473~478 (2018)[DOI]
- Experiences with Industrial and Radiological Safety during Decommissioning of Nuclear Power Plants, "Electric Power Research Institute (EPRI)", ~, pp.Technical Report 3002015955 (2019)
- Connecticut Yankee Decommissioning Experience Report: Detailed Experiences 1996-2000, "Electric Power Research Institute (EPRI)", ~, pp.Technical Report 1013511 (2006)
- Lee, E. J., "Comparative analysis of occupational radiation doses when decommissioning nuclear power plants", Energy Science & Engineering, 10(12), pp.4358~4365 (2022)[DOI]
- Kim, S., "A methodology to designate radiation‐controlled areas in decommissioning nuclear power plants", Energy Science & Engineering, 11(9), pp.3204~3214 (2023)[DOI]