ABSTRACT
There are different requirements for the CMOS technology used for the analog front-end signal processing, as opposed to that for the digital signal processing. For the analog part of the electronics, there is a requirement for a robust technology that has low electronic noise and high dynamic range that typically requires large power supply voltages. Digital signal processing in turn requires very high speed and high density that is more compatible with the more modern low voltage supply, deep submicron processes. The purpose of this chapter is to present a review of available photon counting ASICs that are or can be used in spectral CT.
