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由于CdZnTe(CZT)探测器尺寸和能量分辨率受到工艺限制,采用电容性Frisch栅探测器结构,将多个薄的单元探测器并行叠加使其等效为大体积的探测器,用于克服单元小探测器探测效率低的缺点,同时单极电荷的几何结果有效克服了载流子的复合.探测器的电极接触为肖特基接触(In-p/CZT-AuCl3),进一步压缩了权重势,降低了噪声,降低了漏电流,从而得到大体积多元并行探测器的能量分辨率不受单元能量分辨率最差探测器的限制,并且探测效率为单元探测器的2.45～7.31倍.
Due to process limitations of the CdZnTe (CZT) detector size and energy resolution, a capacitive Frisch gate detector architecture was used to stack multiple thin cell detectors in parallel to make them equivalent to large-volume detectors used to overcome the cell The small detector has the disadvantage of low detection efficiency and the geometrical result of the unipolar charge effectively overcomes the recombination of the carriers.The electrode contact of the detector is Schottky contact (In-p / CZT-AuCl3), further reducing the weight potential , The noise is reduced and the leakage current is reduced. Therefore, the energy resolution of a large-volume multivariate parallel detector is not limited by the worst detector of unit energy resolution, and the detection efficiency is 2.45 to 7.31 times of the unit detector.