Chapter 1
CdZnTe and CdTe Crystals for Medical Applications
Csaba Szeles
1.1 CdTe and CdZnTe for Medical Applications
CdTe and CdZnTe semiconductor detectors are solid-state devices that provide direct conversion of the absorbed gamma-ray energy into an electronic signal. Many of the advantages of these detectors for medical applications stem from this inherent energy discrimination and photon-counting capability. In addition, the high radiation stopping power and resulting high detection efficiency, low leakage current at room temperature, good charge transport of the photon-generated carriers, and the favorable chemical and mechanical properties that allow the fabrication of pixelated detectors enable the manufacture of sophisticated X-ray ...
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