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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.… Click to show full abstract
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.
Journal Title: Atomic Energy
Year Published: 2020
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