A method for estimating Ar-41, Kr-85,Kr-88 and Xe-131m,Xe-133 doses to non-human biota

摘要

A method is presented for estimating Ar-41, Kr-85,Kr-88 and Xe-131m,Xe-133 dose rates to terrestrial wildlife without having to resort to comparisons with analogue radionuclides. The approach can be used to calculate the dose rates arising from external exposures to given ambient air concentrations of these isotopes. Dose conversion coefficient (DCC) values for a range of representative organisms are calculated, using a Monte Carlo approach to generate absorbed fractions based on representing animals as reference ellipsoid geometries. Plume immersion is the main component of the total DCC.