[The method for calculation the dose absorbed by terrestrial animals for assessments of the environmental impact from radioactive contamination].
The method for calculatior of the exposure doses to terrestrial animals in areas contaminated by radionuclides using a point source dose function is presented. To take into account scattered gamma-radiation, the Berger formula for dose buildup factor in an infinite air medium has been parameterized. In developed dosimetric model, an animal phantom is presented as parallelepiped to estimate external dose exposures and as a tissue equivalent sphere to estimate internal doses. Using the analytical expressions, dose rate conversion coefficients for external and internal exposures of animals have been estimated for individual radionuclides. For energies of gamma-rays, the results are found to be in good agreement with those estimated by the Monte-Carlo method for the ellipsoidal phantoms of animals.
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D000818:Animals; D001610:Beta Particles; D004781:Environmental Exposure / Q000032:analysis*; D004785:Environmental Pollutants / Q000032:analysis*; D005720:Gamma Rays; D008954:Models, Biological; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods*; D011848:Radioactive Pollutants / Q000032:analysis*
D004785:Environmental Pollutants; D011848:Radioactive Pollutants