원자력시설 해체 종사자의 방사선피폭 관리를 위한피폭방사선량 관리체계 및 관리 목표치에 대한 연구
Study of Decommissioning Organization and Target Doses for Management of Radiation Exposure to Workers at Nuclear Facilities
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
During decommissioning of a nuclear facility, the radiation dose to workers should be managed not to exceed a certain level. The objective of this study was to review decommissioning organization and target doses for management of radiation exposure to workers at nuclear facilities. The review was performed for the 7 nuclear facilities in the US, including commercial nuclear power plants, research and experimental reactor, and other nuclear facilities. For all the facilities, decommissioning organizations were established and given in decommissioning activities report and decommissioning plan. Certain department and associated supervisors were in charge of radiation protection of workers. They had an authority to stop radiation works not to exceed a certain level. In 10 CFR 20, only dose limits not target doses are given. Therefore, each facility set its own target doses and applied it during the facility decommission. The target doses were set 50~100% (25~50 mSv·year-1) level of dose limits for the commercial nuclear power plants and 10~50% (5~25 mSv·year-1) level of dose limits for the research and experimental nuclear plant and other nuclear facilities. It is suggested that 70~90% (14~18 mSv·year-1) level of dose limits is appropriate for near future decommissioning of a commercial nuclear power plant considering target doses for previous decommission of nuclear facilities in other country and management dose limits set for operational nuclear power plants in Korea.
Abstract
During decommissioning of a nuclear facility, the radiation dose to workers should be managed not to exceed a certain level. The objective of this study was to review decommissioning organization and target doses for management of radiation exposure to workers at nuclear facilities. The review was performed for the 7 nuclear facilities in the US, including commercial nuclear power plants, research and experimental reactor, and other nuclear facilities. For all the facilities, decommissioning organizations were established and given in decommissioning activities report and decommissioning plan. Certain department and associated supervisors were in charge of radiation protection of workers. They had an authority to stop radiation works not to exceed a certain level. In 10 CFR 20, only dose limits not target doses are given. Therefore, each facility set its own target doses and applied it during the facility decommission. The target doses were set 50~100% (25~50 mSv·year-1) level of dose limits for the commercial nuclear power plants and 10~50% (5~25 mSv·year-1) level of dose limits for the research and experimental nuclear plant and other nuclear facilities. It is suggested that 70~90% (14~18 mSv·year-1) level of dose limits is appropriate for near future decommissioning of a commercial nuclear power plant considering target doses for previous decommission of nuclear facilities in other country and management dose limits set for operational nuclear power plants in Korea.
참고문헌 (17)
- 원자력안전위원회, "방사선방호 등에 관한 기준", 원자력안전위원회고시 제2017-36호, ~ (2017)
- 방사성폐기물관리시설 안전규제 체계 선진화 방안 연구-북한 비핵화에 대비한 원자력 관련시설의 해체등 방사성폐기물 대응을 중심으로, "신종한", 통일부 통일교육원, ~, pp.The Institute for unification education No 51 (2016)
- La Crosse Boiling Water Reactor Decommissioning Plan Revision, "Dairyland Power Cooperative", Dairyland Power Cooperative, ~ (2010)
- Decommissioning Plan Buffalo Materials Research Center, "ENERCON", ENERCON, ~ (2012)
- Safety assessment for decommissioning, "IAEA", International Atomic Energy Agency Vienna, ~, pp.IAEA Safety Reports Series No 77 (2013)
- "Country statistics of nuclear power reactors" (2017)[URL]
- ICRP, "Recommendations of ICRP. ICRP Publication 26. Ann. ICRP 1(3). International Commission on Radiological Protection", Pergamon Press, ~ (1977)
- ICRP, "1990 Recommendations of the international commission on radiological protection. ICRP Publication 60. Ann. ICRP 21(1-3). International Commission on Radiological Protection", Pergamon Press, ~ (1991)
- ICRP, "Recommendations of the international commission on radiological protection. ICRP Publication 103. Ann. ICRP 37(2-4). International Commission on Radiological Protection", Pergamon Press, ~ (2007)
- Nuclear safety regulation for decommissioning of nuclear facilities in the United States of American and Japan, "KINS", Korea Institute of Nuclear Safety, ~, pp.KINS (2006), RR-411
- Phase 1 Plan for C-T Decommissioning, "Mallinckrodt Inc", Mallinckrodt Inc, ~ (2002)
- C-T Phase 2 Decommissioning Plan-revision 2, "Mallinckrodt Inc", Mallinckrodt Inc, ~ (2008)
- "Research of DP and PSDAR" (2017)[URL]
- Phase 1 Decommissioning Plan for the West Valley Demonstration Project, "SAIC", Science Applications International Corporation, ~ (2009)
- UM, "Decommissioning Plan for the Ford Nuclear Reactor", pp.2004
- Pathfinder Decommissioning Plan, "Xcel Energy", Xcel Energy, ~ (2004)
- YAEC, "Yankee Nuclear Power Station Decommissioning Plan Revision: 0.0" (1993), Yankee Atomic Electric Company