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Three-dimensional-position-sensitive semiconductor detectors provide both energy and locations of gamma-ray interactions in the detector. From these data, Compton-imaging methods can reconstruct the spatial source distribution around the detector as a function of energy. Here, the generalized likelihood ratio test (GLRT) and the source-intensity test (SIT) are applied to automate detection and identification...
Cadmium zinc telluride (CZT) is considered a promising material in detector manufacturing for gamma-ray imaging. The potential of using CZT detectors with pixellated anodes to fulfill the requirements of better spatial and energy resolution as well as higher sensitivity has not been yet fully investigated. Pixellated anodes are advantaged by the small pixel effect but are susceptible to charge sharing...
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