MONTE-CARLO SIMULATION OF RESPONSE OF CdZnTe DETECTORS OF BETARADIATION

Abstract

Response functions of CdZnTe detector, developed for measurement of electron energy spectra, are investigated. The experimental response of CdZnTe detector is compared to the spectra simulated by Monte-Carlo method. A satisfactory agreement of simulated and experimental data is reached with introduction in the theoretical detector model of two fitting parameters – products of mobilities and lifetimes of electrons and holes. It is shown that the main disagreement of experimental and simulated spectra is connected to the high level of noise in the preliminary amplifier.