Modelling of the Analog Electronic Stage of a Detection System for Hard X-ray Astronomy

Abstract: Germanium detectors are used by the scientic community to study cosmic X-ray sources. In order to localize the exact 3D position of an X-ray interaction, double-sided strip detectors are used. Each strip requires a single readout electronic stage to convert induced charge into a voltage pulse. We present here the computer simulation of such an analog electronic stage. Each particular element of this stage, i.e. charge-sensitive preamplier, amplier, oset corrector, lter and analog-to-digital converter, will be simulated in detail, taking into account temperature and noise performances. Furthermore, a tool to simultaneously simulate multiple strips for several X-ray interaction points was developed. This tool will facilitate the study of all electronic chains as a whole.