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RAS BiologyРадиационная биология. Радиоэкология Radiation biology. Radioecology

  • ISSN (Print) 0869-8031
  • ISSN (Online) 3034-5898

Distribution of Cesium Radioisotopes in Pine Biogeocenoses and the Associated Absorbed Dose Rate of External γ-Radiation

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PII
S30345898S0869803125020086-1
DOI
10.7868/S3034589825020086
Publication type
Article
Status
Published
Authors
T. V. Perevolotskaya
  • Occupation: Candidate of Biological Sciences, Associate Professor, senior researcher at the Laboratory of Mathematical Modeling and Software and Information Support
  • Affiliation: Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"
A. N. Perevolotsky
  • Occupation: Doctor of Biological Sciences, leading researcher at the Laboratory of Mathematical Modeling and Software and Information Support
  • Affiliation: Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"
S. A. Geras’kin
  • Occupation: Doctor of Biological Sciences, professor, Head of Plant Radiobiology and Ecotoxicology Laboratory
  • Affiliation: Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"
Volume/ Edition
Volume 65 / Issue number 2
Pages
208-219
Abstract
Data on the distribution of Cs and Cs in the main components (forest litter, upper layers of the mineral part of the soil, elements of the aboveground phytomass of woody plants) of pine plantations in the Belarusian sector of the 30 kilometer zone around the Chernobyl nuclear power plant 8 years after the emergency radioactive fallout are presented. Using dosimetric models based on the integration of the dose function of a point radiation source and the numerical solution of the radiation transfer equations, calculations of the absorbed dose rate of external gamma radiation at a height of 1 m above the surface of the forest floor from the radiation of radionuclides contained in the studied components were performed. Satisfactory convergence of the results of calculation and measurement of dose rate in pine plantations has been established. It is shown that different methods for calculating the dose rate from external gamma radiation of radionuclides contained in the same components of biogeocenosis allow us to obtain comparable results. The determining contribution to the formation of the radiation dose rate of Cs and Cs located in the forest floor and 2 upper soil layers of the mineral part of the soil has been established, the contribution of elements of the aboveground phytomass of woody plants does not exceed 2.5%.
Keywords
радиоактивность ЧАЭС радионуклиды γ-излучение мощность дозы поглощенная доза аварийные радиоактивные выпадения сосновые насаждения
Date of publication
29.12.2025
Year of publication
2025
Number of purchasers
0
Views
62

References

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