ABSTRACT
The ability to peer into the human body is an essential diagnostic tool in medicine. Many of the imaging modalities, including computed tomography (CT) and SPECT / PET (single photon emission computed tomography/positron emission tomography) nuclear medicine techniques, are based on X-ray or H-ray transmission and detection. In addition, radiation detection is used in numerous other elds, including high-energy physics, security, luggage scanning, and space applications. Despite their different principles of operation, there are numerous commonalities in the processing of signals received by these imaging detectors: signal amplication, ltering, multiplexing, and analog-to-digital conversion (ADC). The last step, A/D conversion, is essential, as gathered information is typically processed using digital signal processing algorithms.
