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CZT detectors have attracted much interest as room-temperature solid-state X-ray and gamma ray detectors due to their high energy resolution and high spatial resolution. Pixel CZT detectors are widely applied. However, the observed spectrum of a single pixel is distorted towards lower energies. The possible reasons for the spectral distortion may be carriers trapping, charge sharing with the adjacent...
A GUI application named CZT Simulator based on ROOT is developed to study pixelated CZT detector. The parameters taken into account include detector size, pixel size, electronic noise, threshold and so on. Ansoft Maxwell is used to calculate the electric field and the weighting potential of the detector. Geant4 is used to obtain the initial energy deposition data. Induced Current Calculator package...
The room temperature semiconductor detector HgI2 is well known for its high detection efficiency and low leakage current. But the defects created during the growth degrade the performance of HgI2 detectors. The low crystal rigidity and the surface instability lead to the difficult operation in crystal processing and further more make the detector performance very sensitive to those processing procedures...
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