Design of pixel-level ADCs for energy-sensitive hybrid pixel detectors

D. San Segundo Bello, Bram Nauta, Jan Visschers

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    Single-photon counting hybrid pixel detectors have shown to be a valid alternative to other types of X-ray imaging devices due to their high sensitivity, low noise, linear behavior and wide dynamic range. One important advantage of these devices is the fact that detector and readout electronics are manufactured separately. This allows the use of industrial state-of-the-art CMOS processes to make the readout electronics, combined with a free choice of detector material (high resistivity Silicon, GaAs or other). By measuring not only the number of X-ray photons but also their energies (or wavelengths), the information content of the image increases, given the same X-ray dose. We have studied several possibilities of adding energy sensitivity to the single photon counting capability of hybrid pixel detectors, by means of pixel-level analog-to-digital converters. We show the results of simulating different kinds of analog-to-digital converters in terms of power, area and speed.
    Original languageUndefined
    Title of host publicationProceedings of PRORISC 2000 conference
    Place of PublicationVeldhoven - The Netherlands
    Number of pages6
    ISBN (Print)9076461243
    Publication statusPublished - 30 Nov 2000
    Event11th Annual Workshop on Circuits, Systems and Signal Processing, ProRISC 2000 - Veldhoven, Netherlands
    Duration: 30 Nov 20001 Dec 2000

    Publication series

    PublisherSTW, Technology Foundation


    Workshop11th Annual Workshop on Circuits, Systems and Signal Processing, ProRISC 2000


    • METIS-112915
    • IR-16033

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