Goran Panjkovic

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The fabricated analog application specific integrated circuit (ASIC) is a front-end circuit for multichannel pixel detector system. The designed ASIC provides signal amplification for a pixelated arrays of 1 mm and 200µm pitch pixel detectors made from Cadmium Telluride (CdTe) and Cadmium Zinc Telluride (CZT) detector. Both the detector and ASIC are(More)
The distinctive challenges for design of read-out ASICs for radiation detectors in biomedical applications originate from the need to be interfaced to detectors with high density of pixels and process photons with high rates. Those two dominant factors impose a range of conflicting restrictions and demands on the design of the readout integrated circuits(More)
The most common form of read-out electronics for radiation detection at the pixel basis can be described as a signal processing channel consisting off: detector pixel, preamplifier, pulse shaper and A/D converter. The signal generation starts when a photon interacts with a detector, resulting in a charge which amount is proportional to the photon energy.(More)
Current medical imaging technology for computed tomography (CT) and radiographic applications are based on either indirect or direct integrating x-ray detectors. The resulting image contrast is based on the differences between the x-ray absorption properties of the object being imaged. Contrast in biomedical samples that contain soft tissues can be poor due(More)
Cadmium Zinc Telluride (CZT) and Cadmium Telluride (CdTe) detectors with 200µm pixellated electrodes were tested with the aim to determine material properties and electrical parameters for Hybrid Pixel Detector (HPD) systems. A 32 channel discrete analogue preamplifier platform was designed and manufactured in which radiation tests were performed on(More)
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