Detector Systems for Medical Diagnostics

Medical systems are reviewed, which are suitable to image x-ray patterns obtained for medical diagnosis. Semiconductor sensors are utilized for detection of x-rays in the range from 5 to 150 keV. The applications range from mammography to dental and full body exposures. Silicon-, GaAs, and CdTe sensors as the basic choices for room temperature operation are being compared. Processing techniques for different substrates are essential to facilitate a reliable sensor system. Pixel, 3D and CCD systems will be compared. Readout systems like the novel photon counting technique will be presented and compared to integrating methods. Finally methods for comparing the different sensor systems will be shown.