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The Polaris system is an array of 18 position-sensitive detectors, using 6 cm3 pixelated CdZnTe crystals from Redlen Technologies and readout electronics from Gamma-Medica Ideas (GMI). Many detectors received from Redlen Technologies are capable of achieving 1% energy resolution or better at 662 keV for all single-pixel events during room temperature operation. Furthermore, 3D position reconstruction...
Large volume, pixelated Cadmium Zinc Telluride detectors have been developed over the past decade. In November of 2009, Redlen Technologies began manufacturing 130 20×20×15 mm3 CdZnTe detectors, each with a common grid between the 121 pixels, for the Polaris Project. Results for the first 65 detectors were studied to determine a set of criteria that could be used to help streamline the detector testing...
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