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This paper presents the design and preliminary evaluation of small-pixel CdTe gamma ray detectors equipped with a hybrid pixel-waveform (HPWF) readout system for gamma ray imaging applications with additional discussion on CZT due to its similarity. The HPWF readout system utilizes a pixelated anode readout circuitry which is designed to only provide the pixel address. This readout circuitry works...
This paper presents preliminary experimental results obtained with a prototype SPECT system for small animal studies. This system is based on novel energy-resolved photon counting (ERPC) detectors we have recently developed for gamma ray imaging applications. The ERPC detector has basic modular configuration that offers an overall detection area of 4.5 cm × 4.5 cm, comprising of eight CdTe/CMOS detector...
In this study, we experimentally investigated the detailed charge collection process in CdTe ERPC detectors that are operated inside a strong magnetic field for MRI-compatible SPECT imaging system. As one of the key objectives, we quantitatively assessed the effect of the Lorenz force on the migration of charge carriers and signal induced inside the detector bulk. During the study, the ERPC detectors...
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