Diffusional Model for Radionuclide Fixation in Soils:A Comparison with Experimental Data and other Models

摘要

A diffusional model for radionuclide fixation in soils is compared with experimental data and other models.it was shown that the proposed model simulates well the experimental kinetics of radiocesium fixation in xoils for time intervals from several hours to several years.Under certain conditions,the solution of the corresponding differential equation is reduced to empirical formulas obtined for these conditions.In contrast to the previous models,the diffusional model enables the estimation o fits parameters during a short-term experiment.