Simulation of Double-Sided Orthogonal Microstrip CdZnTe Detector

Cadmium zinc telluride (CdZnTe) has been extensively utilized in X-ray and gamma ray detection because of its exceptional energy resolution and capability to operate at room temperature. This article presents the design of a CdZnTe detector featuring a double-sided orthogonal microstrip electrode structure, which achieves both high-energy resolution and high-spatial resolution for nuclear radiation detection. Through simulation modeling, the effects of varying electrode sizes on detector performance were analyzed within a single electrode strip size range of 150 µm, which includes both width and gap. At the same time, the energy spectrum response of the detector at room temperature was analyzed. The simulation indicated that this detector structure can achieve energy resolutions of 161 eV at 6 keV and 620 eV at 60 keV.