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Two custom-made In0.5Ga0.5P p+-i-n+ circular mesa spectroscopic X-ray photodiodes with different diameters (200 μm and 400 μm… Expand Abstract We discuss the potential benefits of using compound semiconductors for the detection of X- and γ-ray radiation. While Si… Expand The eROSITA space telescope is currently developed for the determination of cosmological parameters and the equation of state of… Expand The Smithsonian Astrophysical Observatory (SAO) in collaboration with SRI/Sarnoff is developing monolithic CMOS detectors… Expand The new generation of pixelated photon counting X-ray detectors like the Medipix2 and the Medipix3 does not measure energy… Expand A new class of CMOS imagers that compete with scientific CCDs is presented. The sensors are based on deep depletion backside… Expand Abstract A special type of charge-coupled device, the pnCCD, has been developed in the nineties as focal-plane detector for the X… Expand The pn-charge coupled device (pn-CCD) detector system was developed as the focal plane instrument of an x-ray telescope for the… Expand The application of CCDs to X-ray imaging and spectroscopy for astronomy is described. The requirements which differ markedly from… Expand Recent developments of scientific CCDs have produced sensors that achieve ultra low read noise performance (less than 2 electrons… Expand