Calculations of the external and internal radiation doses to earthworms in the typical range of specific activity of natural radionuclides in the planetary soil and on the territory occupied by the Almaz LPO performed using dose conversion factors and a dosimetric model based on integration of the dose function of a point source of radiation. It was determined that the total dose can reach 6 μGy/h at maximum radionuclide concentration in the planetary soil and 50 μGy/h near the Almaz facility, which is more than 20 times lower than the permissible exposure recommended by the ICRP. Approximately 75% of the total dose is due to external exposure. The main dose-forming radionuclides are representatives of the 226Ra and 228Th subfamilies.
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Translated from Atomnaya Énergiya, Vol. 132, pp. 293–297, May, 2022.
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Perevolotskaya, T.V., Perevolotsky, A.N. Evaluation of the Earthworm Radiation Dose on Territory with Elevated Natural Radionuclide Content. At Energy 132, 309–313 (2022). https://doi.org/10.1007/s10512-023-00947-y
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DOI: https://doi.org/10.1007/s10512-023-00947-y