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Creators/Authors contains: "Savage, Emmanuel K."

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  1. ; ; ; ; ; ; (, 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC))
    Cadmium zinc telluride selenide (CdZnTeSe) is emerging as a promising semiconductor material for low-cost production of nuclear and radiological detection systems capable of operating at room temperature. This paper presents studies of the fabrication process and detector response for gamma-ray detectors produced from high-quality CdZnTeSe crystals grown by the traveler heater method (THM). The resistivity of the CdZnTeSe is on the order of 10 GΩ-cm. The electron mobility-lifetime (μτ) product characterizing the charge-transport properties is on the order of 0.001 square-cm per volt. Energy resolutions as good as 6.5% FWHM for the 59.5-keV gamma-peak of 241 Am were recorded for planar detectors with gold contacts. 
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