CE형 원전의 격납건물내 중성자선량 평가

Dose Evaluation of Neutron within Containment Building of a CE type Nuclear Power Plant

Tae-Wook Kim, Jae-Mun Han, Kyung-Doek Kim, Cheol-Whan Yun, Jang-Soo Suh, Young-Jae Kim

Abstract

From measured results of the neutron fields at some principal places within the containment building in a CE type nuclear power plant in operation, the radiation exposure of a worker to the neutron at there was evaluated and the equivalent dose reflecting new recommendation (ICRP 60) was compared with that doing the old one (ICRP 26). The measured neutron field was also compared with calibration neutron field. From the analysis, the following conclusion was obtained: the average neutron radiation weighting factor according to new recommendation is 2.41 to 2.71 times higher than the old one. The average neutorn radiation weighting factor at the measured place was similar to that at calibration neutron field. The average neutron energy at measured place was between 42 and 158 keV and higher than that of calibration field of 500 keV. So, the measured equivalent dose in nuclear power plant could be overestimated compared to the real equivalent dose.

Key Words : neutron flux, radiation weighting factor, equivalent dose, calibration, containmentbuilding, 중성자속, 방사선가중치, 등가선량, 교정, 격납건물

Reference

JNFCWT

Online Submission

Korean Radioactive
Waste Society (KRS)

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