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The development of semiconductor detectors such as CdTe and CdZnTe, which work at room temperature, has led us to study the design of a new single photon emission computed tomography (SPECT) system. These semiconductor detectors have a high energy resolution. Moreover, they are used as pixellated detectors, and so the intrinsic resolution can be equal to the size of the pixel used for measurement...
We made a prototype gamma camera system with CdZnTe semiconductor detectors that work at room temperature. The effective field of view of this detector is 195 ?? 156 mm2 with a pixel size of 2.46 ?? 2.46 mm2. We evaluated the performance of the detector in terms of the energy resolution, intrinsic spatial resolution, system spatial resolution and system sensitivity. The performance of the detector...
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