AbstractVacuum ultraviolet (VUV) radiation, spanning the electromagnetic spectrum from about 2nm (620eV) to 200nm (6.2eV) has long been important in astronomy, solar physics, and Earth observing systems, among other applications. The National Institute of Standards and Technology (NIST) has several programs to serve the VUV user community, from the Synchrotron Ultraviolet Radiation Facility (SURF III) – a standard of irradiance from 2 to 400nm – to measurement and calibration services for mirrors, photodiodes, and filters. We have recently reduced the uncertainty of our extreme ultraviolet (EUV) detector calibrations by implementing an absolute cryogenic radiometer on one of the SURF beamlines, and have effected several improvements to the EUV detector calibration beamline at SURF. We continue to investigate wide-bandgap semiconductors for use as solar-blind detector technologies, and have recently obtained quantum efficiency and uniformity data from 1cm2 active area GaN and SiC photodiodes.


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    Titel :

    NIST VUV metrology programs to support space-based research


    Beteiligte:
    Vest, Robert E. (Autor:in) / Barad, Yaniv (Autor:in) / Furst, Mitchell L. (Autor:in) / Grantham, Steve (Autor:in) / Tarrio, Charles (Autor:in) / Shaw, Ping-Shine (Autor:in)

    Erschienen in:

    Advances in Space Research ; 37 , 2 ; 283-296


    Erscheinungsdatum :

    2005-02-25


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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