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Volume 6, Issue 5 (Suppl)
OMICS J Radiol, an open access journal
ISSN: 2167-7964
Radiology and Oncology 2017
October 19-20, 2017
World Congress on
October 19-20, 2017 | New York, USA
Radiology and Oncology
Analysis of accident characteristics of nuclear research facilities at KAERI for emergency planning
Goanyup Lee
Korea Atomic Energy Research Institute, Korea
T
he Korea Atomic Energy Research Institute (KAERI) operates nuclear research facilites such as a nuclear research reactor with
30MWth power, a fuel fabrication facility treating 19.75% enrichment uranium, and a hot-cell facilities to produce radioistopes.
All of these licensed facilities by the nuclear regulatory body need emergency plans against an accident. The emegency plan should be
based on the hazard assessment of the facilities, and thus all accidents described in safety analysis reports and the accident experiences
around the world were reviewed. After this review, the most severe accident scenarios for each nuclear facility were selected to
simulate the radiation impact to workers around the facilities and the public off the KAERI site. The simulation was implemented
by using computer code, that is, ORIGEN2, MELCOR, MACCS2, and Microshield10. First, the inventory accumulated during
operation in reactor fuels was calculated using the ORIGEN2 code. Second, the building structure, flow path, and heat structure
were designed as input data for the MELCOR code. Third, accident scenarios such as energy supply to a space involving an accident,
radioactive material evaporation, and wind pressure loaded to the building walls by winds outside were designed as MELCOR input
data. After that, the simulation using the MELCOR code to analyze radioactive material behavior in the building and leakage into
the environment was implemented, and through this simulation, the source-term was also produced. Fourth, the effectiveness of
the emergency response scenario such as sheltering in doors or evacuation was simulated using the MACCS2 code based on the
source-term produced by the MELCOR code and one-year meteorological data collected from meteological tower at the KAERI
site. Based on the results, it was confirmed that the fission product release into the reactor hall by a fuel channel blockage accident at
the research reactor will remain inside the reactor hall even under typhoon conditions, and that a proper evacuation radius for each
accident condition was selected as 300 m for the research reactor, 100 m for the fuel fabrication facilicy, and the builing boundary for
the hot-cell facility.
Biography
Goanyup Lee has obtained his Bachelor’s dergee in Chemical Engineering at Chonbuk National University in Korea, He has 23 years of experience in nuclear emergency
preparedness. Currently, he is the Manager of the nuclear emergeney preparedness team at the Korea Atomic Energy Research Institute.
gylee@kaeri.re.krGoanyup Lee, OMICS J Radiol 2017, 6:5 (Suppl)
DOI: 10.4172/2167-7964-C1-015