Prototype of Ultra-Fast X-Ray Camera Controller working in a single photon counting mode and based on ASIC has been presented in this paper. An ASIC architecture has been discussed with special attention to digital part. We present the Custom Soft Processor as an ASIC control sequences generator. The Processor allows for dynamic program downloading and generating control sequences with up to 80MHz clock rate (preliminary results). Assembler with a very simple syntax has been defined to speed up Processor programs development. Discriminators threshold dispersion correction has been performed to confirm proper Camera Controller operation.
Hybrid pixel detectors working in a single photon counting mode are very attractive solutions for material science and
medical X-ray imaging applications. Readout electronics of these detectors has to match the geometry of pixel detectors
with an area of readout channel of 100 μm × 100 μm (or even less) and very small power consumption (a few tens of
μW). New solutions of readout ASICs are going into directions of better spatial resolutions, higher data throughput and
more advanced functionality. We report on the design and measurement results of two pixel prototype ASICs in
nanometer technology and 3D technology which offer fast signal processing, low noise performance and advanced
functionality per single readout pixel cell.
This paper presents the prototype detector readout electronics for the STS (Silicon Tracking System) at
CBM (Compressed Baryonic Matter) experiment at FAIR, GSI (Helmholtzzentrum fuer
Schwerionenforschung GmbH) in Germany. The emphasis has been put on the strip detector readout
chip and its interconnectivity with detector. Paper discusses the impact of the silicon strip detector and
interconnection cable construction on the overall noise of the system and architecture of the TOT02
readout ASIC. The idea and problems of the double-sided silicon detector usage are also presented.
Experimental techniques in physics, material science, biology and medicine want to gain profit from the advantages of the VLSI technology by using a new generation of electronic measurement systems based on parallel signal processing from the multielement sensors. In most cases key problems for building such system are multichannel mixed-mode Application Specific Integrated Circuits, which are capable to process small amplitude signals from multielement sensor. In this class of integrated circuits several important problems like power limitation, low level of noise, good matching performance and crosstalk effects must be solved simultaneously. This presentation shows two ASICs which, given the
original solutions implemented and their universal properties, can be used in different applications and are significant milestones in experimental techniques. The first presented ASIC is the 64-channel charge amplifier with binary readout architecture for a low energy X-ray imaging techniques. This integrated circuit connected to silicon strip detector can be used in powder diffractometry and then it reduces the measurement time by two order of magnitude. The second
presented ASIC is multichannel low noise readout for extracellular neural recording, which is able to cope with extracellular neuronal recording for the systems comprising several hundreds of electrodes. Important steps forward in this design are a novel solution for band-pass filters for low frequency range, which follow requirements for good matching, low power and small silicon area. This ASIC can be used to monitor the neural activity of such complicated system like retina or brain.