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J Radiat Prot > Volume 20(1); 1995 > Article
Journal of Radiation Protection 1995;20(1):53-0.
월성 원자력 발전소 2,3,4호기에서의 LOCA 사고후 보조건물의 방사선장 평가
진영권;김용일;
Assessment of Post-LOCA Radiation Fields in Service Building Areas for Wolsong 2, 3, and 4 Nuclear Power Plants
Jin, Yung-Kwon;Kim, Yong-Il;
ABSTRACT
The radiation fields following the large loss of coolant accident (LOCA) have been assessed for the vital areas in the service building of Wolsong 2, 3, and 4 nuclear power plants. The ORIGEN2 code was used in calculating the fission product inventories in the fuel. The source terms were based upon the activity released following the dual failure accident scenario, i.e., a LOCA followed by impaired emergency core cooling (ECC). Configurations of the reactor building, the service building, and the ECC system were constructed for the QAD-CG calculations. The dose rates and the time-integrated doses were calculated for the time period of upto 90 days after the accident. The results showed that the radiation fields in the vital access areas were found to be sufficiently low. Some areas however showed relatively high radiation fields that may require limited access.
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