Selection of semiconductor materials for gamma-ray detectors

Abstract

Among the semiconductors used in spectrometers and dosimeters, wide-bandgap compounds such asCd_1-xZn_xTe, CdTe, and HgI₂ occupy leading positions. The question arises as to whether this choice is definitive and optimal. In an attempt to answer this question, physical parameters critical to the detector’s sensitivity were selected. These include, first and foremost, mobility, lifetime, atomic number, and resistivity. Based on the selected parameters, an analysis of binary compounds with a tetrahedral structure was conducted.