The Frisch-grid CdZnTe detector is a kind of unipolar detector, which can solve the problem of low resolution of planar CdZnTe detectors caused by the poor charge transport of holes. In this paper, high-quality CdZnTe crystals grown by traveling heater method were adopted to develop Frisch-grid CdZnTe detectors. The Geant4 software was adopted to simulate the interaction process of various $\gamma$-rays in CdZnTe detectors with different thickness. The Comsol software was used to simulate the structural and material parameters on the weighting potential and energy spectra of Frisch-grid CdZnTe detectors. According to the simulation results, the Frisch-grid CdZnTe detectors were fabricated, and the energy spectra of the detectors under different bias and shaping time were studied experimentally. The 4$\times$4 array module of Frisch-grid CdZnTe detectors was designed, whereby the detection efficiency and energy spectra of the array module were studied with the Rena-3 readout ASIC.

Frisch-grid CdZnTe探测器是一种单极探测器，可以解决由于空穴输运不畅造成平面CdZnTe探测器分辨率低的问题。本文采用行进加热法生长的高质量CdZnTe晶体来开发Frisch-grid CdZnTe检测器。采用Geant4软件来模拟各种交互过程$\gamma$厚度不同的CdZnTe探测器中产生的射线 使用Comsol软件在Frisch-grid CdZnTe检测器的加权势和能谱上模拟结构和材料参数。根据仿真结果，制作了Frisch-grid CdZnTe探测器，并研究了在不同偏压和整形时间下探测器的能谱。4$\times$设计了Frisch-grid CdZnTe检测器的4个阵列模块，利用Rena-3读出ASIC研究了该阵列模块的检测效率和能谱。