This study presents a numerical simulation of the interaction of protons (2–200 MeV) and electrons (50 keV–5 MeV) with the KODIZ-2 (Combined Radiation Detector) system using the Geant4 environment. A simplified detector model was developed for simulation purposes, and a series of computational experiments were conducted using an isotropic particle distribution. The threshold energies for proton (3.1 MeV) and electron (300 keV) detection were determined, along with the characteristics of their energy losses in the detector system. The study demonstrates that the differences in the responses of silicon detectors and scintillators enable effective particle classification and separation of proton and electron fluxes. A method for separating particles in the detector response space by constructing a dividing surface is proposed, which makes it possible to achieve 99.81% accuracy in recognizing the particle type. The obtained results confirm the effectiveness of KODIZ-2 for detection and spectrometry of charged particles in space experiments, and also demonstrate the potential of its use in monitoring radiation conditions and studying cosmic particle fluxes.
Sadykov et al. (Sun,) studied this question.