Parametric Study of Accident Consequences from Different Weather Conditions. Application to IFE Power Plants

Abstract

Estimating radiological risks is an essential part of an assessment of fusion as an attractive source of energy. Due to the limited data specific to radionuclides of interest to fusion reactors, one of the goals of this work is to expand the Dose Conversion Factors (DCF) library for use in the calculation of different types of off-site doses and associated health effect consequences. This expansion accounts for about 300 radionuclides included in accidental activity releases from HYLIFE-II and SOMBRERO IFE Power Plants. Furthermore, for each of the radionuclides included in the new DCF library, we address a parametric study of accident consequences by varying the atmospheric stability, wind speed, rain conditions, and thermal plume rise. The results of these calculations allow us to identify the most troublesome radionuclides in terms of safety consequences as well as the impact of the different atmospheric scenarios.