Using Monte Carlo simulation, this paper explores the passing of gamma radiation through biological thin layers. In radiobiological experiments, this method of investigation simulates the conditions for determining the relative biological effectiveness (RBE). X-ray spectra from X-ray tubes, which are often used in such experiments, are simulated in this paper. The RBE is determined as the ratio of absorption doses, when the number of ionization events is equal for gamma and X-ray radiation. The results of the estimates are represented for the modeling of X-ray spectra in the case of irradiation of biological layers of different thicknesses.
$^1$Department of Physics, Moscow State University, Moscow, 119991, Russia
$^2$Skobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991, Russia
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