Journal of Nuclear Fuel Cycle and Waste Technology

During the normal operation of a nuclear power plant, radioactive effluents are released. Radioactive effluents can cause exposure to the public. To calculate dose, Korea Hydro & Nuclear Power (KHNP) is currently using the K-DOSE60, and developing new off-site dose calculation program E-DOSE, which has some improvements to the dose assessment methodology. Therefore, in this study, the dose assessment results of the two dose calculation codes, E-DOSE and K-DOSE60, were compared and analyzed. The dose of each pathway for gaseous effluents showed that E-DOSE and K-DOSE60 calculated the same results for cloudshine and inhalation, but different for groundshine and ingestion. The dose of each exposure pathway for liquid effluents showed E-DOSE and K-DOSE60 calculated the same results for boating and swimming, but different for beachshine and ingestion. The difference in dose by groundshine and beachshine is due to the consideration of daughter nuclides, and in ingestion due to the updated dose assessment model of ¹⁴C and ³H. Finally, the dose of gaseous effluents was 28.6% lower for E-DOSE than K-DOSE60, and that of liquid effluents was 10.5% higher for E-DOSE than K-DOSE60. The results of this study can be used for the development and software verification and validation of E-DOSE.

Keywords

E-DOSE, K-DOSE60, Public dose, Offsite-dose calculation