Photocathodes for a post-processed imaging array

J. Melai, Alexey Lyashenko, Amos Breskin, Harry van der Graaf, Jan Timmermans, J. Timmermans, Jan Visschers, Cora Salm, Jurriaan Schmitz

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

    16 Downloads (Pure)

    Abstract

    Preliminary results of a photon detector combining a Micromegas like multiplier coated with a UV-sensitive CsI photocathode are described. The multiplier is made in the CMOS compatible InGrid technology, which allows to post-process it directly on the surface of an imaging IC. This method is aimed at building light-sensitive imaging detectors where all elements are monolithically integrated. We show that the CsI photocathode deposited in the InGrid mesh does not alter the device performance. Maximum gains of ~6000 were reached in a singlegrid element operated in Ar/CH4, with a 2% Ion Back Flow fraction returning to the photocathode.
    Original languageUndefined
    Title of host publicationProceedings of the 12th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors
    Place of PublicationUtrecht, The Netherlands
    PublisherSTW
    Pages32-35
    Number of pages4
    ISBN (Print)978-90-73461-62-8
    Publication statusPublished - 26 Nov 2009
    Event12th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors, SAFE 2009 - Veldhoven, Netherlands
    Duration: 26 Nov 200927 Nov 2009
    Conference number: 12

    Publication series

    Name
    PublisherTechnology Foundation STW

    Conference

    Conference12th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors, SAFE 2009
    Abbreviated titleSAFE
    CountryNetherlands
    CityVeldhoven
    Period26/11/0927/11/09

    Keywords

    • METIS-264278
    • CsI photocathode
    • IR-69062
    • CMOS post-processing
    • SC-RID: Radiation Imaging detectors
    • MICROMEGAS
    • Gaseous radiation detector
    • EWI-17075
    • UV photon detection

    Cite this

    Melai, J., Lyashenko, A., Breskin, A., van der Graaf, H., Timmermans, J., Timmermans, J., ... Schmitz, J. (2009). Photocathodes for a post-processed imaging array. In Proceedings of the 12th Annual Workshop on Semiconductor Advances for Future Electronics and Sensors (pp. 32-35). Utrecht, The Netherlands: STW.