title: An evaluation of cadmium telluride detectors for computer assisted tomography.
abstract: Cadmium telluride (CdTe) presents a set of extremely attractive features as an X-ray detector for computer assisted tomography (CAT). It is stable and easily handled; has a high detection efficiency and very efficient conversion of energy to charge; and permits a high element density in a compact configuration. Unfortunately, effects due to "polarization," "tailing," high and variable leakage currents, and long "memory" are incompatible with the needs of CAT instrumentation. Pulse-processing techniques have allowed us to eliminate these problems in positive-sensitive detectors, thus opening the way for utilization of CdTe in CAT.
mesh_terms: D002104:Cadmium; D004582:Electronics, Medical; D006801:Humans; D055585:Physical Phenomena; D010825:Physics; D013691:Tellurium; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*
chemical_list: D002104:Cadmium; D013691:Tellurium