Usage of computational methods of gamma radiation transfer equation for estimating doses of population exposure due to nuclear power plant's emergency releases of radionuclides (within the frame of a radioecological data base RECOR)

In this paper, the problem of the radioactive cloud dose evaluation for populated settlements has been raised. However, an available accuracy of such evaluation depends on the accuracy of initial data and of the used method. We conclude that the conservative dose models such as the semi-infinite uniform cloud model underestimate the dose absorbed in air at the ground for long-term releases. Nevertheless, we believe that it is necessary to verify the obtained results by comparison with experimental data and other models