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This paper presents a low-noise front-end readout application specific integrated circuit (ASIC) for CZT detectors. A cascode amplifier based on split-let topology is selected to realize the charge-sensitive amplifier (CSA) to achieve low noise performances. A leakage-current-compensation circuit is added to suppress the leakage current of from 0 to 10 nA. The output of the CSA is connected to a slow...
This paper presents a full-custom front-end readout application-specific integrated circuits (ASIC) to obtain a compact platform for flat panel PET imaging systems which are recently proposed for both clinic and small animal applications due to their attractive features such as good flexibility, high sensitivity and low cost. In this paper, the one-chip solution for front-end readout chains, a high-precision...
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