The absorbed dose rate of external γ-radiation from two sources of radiation – surface soil layer and subsurface phytomass of plants in stand grass – is calculated by different methods. The calculation of the absorbed dose rate based on integration of the dose attenuation function of a point source taking into account the dose accumulation factor was compared with the results of a Monte Carlo solution of the radiation transfer equation (MCNP5 code system). The obtained results show that the absorbed dose rate of external γ-radiation in the air-plant medium can be calculated by integrating the dose attenuation function of a point source with variable radionuclide activity and biometric parameters of the plants.
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Translated from Atomnaya Énergiya, Vol. 128, No. 2, pp. 99–104, February, 2020.
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Perevolotskaya, T.V., Perevolotskii, A.N. & Kurachenko, Y.A. Methods of Calculating the γ-Radiation Absorbed Dose Rate in Case of Radioactive Contamination of Meadow Biogeocenoses. At Energy 128, 109–114 (2020). https://doi.org/10.1007/s10512-020-00658-8
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DOI: https://doi.org/10.1007/s10512-020-00658-8