ABSTRACT

Room Temperature Semiconductor Detectors (RTSCD) absorb and detect x-ray imaging photons by generating individually detectable and measurable electric current pulses without the intermediary step of production and detection of visible light photons. This chapter will discuss the suitability of Cadmium-Zinc-Teluride (CZT) as an x-ray detector using absorption, dark currents, and prevention of polarization. The x-ray conversion, charge collection, and signal formation in the CZT will be described. Evidence and discussion of the non-focusing of the electric field is also presented. A comprehensive numerical simulation is used to motivate design optimizations for the CT application.