Computer Science – Performance
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981spie..279..112c&link_type=abstract
In: Ultraviolet and vacuum ultraviolet systems; Proceedings of the Meeting, Washington, DC, April 21, 22, 1981. (A83-13954 03-35
Computer Science
Performance
Imaging Techniques, Photocathodes, Radiation Detectors, Schmidt Cameras, Spaceborne Astronomy, Ultraviolet Astronomy, Design Analysis, Performance Tests, Spaceborne Telescopes, Spacelab Payloads, Spectral Resolution
Scientific paper
This paper reports the current status of a program to develop far- and middle-ultraviolet-sensitive electrographic detectors. These include large-format, semitransparent-photocathode detectors and opaque-photocathode electrographic Schmidt cameras. Modifications of a previously-demonstrated far-UV large-format detector to make it suitable for possible Shuttle/Spacelab space astronomy investigations have been implemented and tested. Middle-ultraviolet-sensitive large-format and Schmidt electrographic detectors are now in the laboratory development stage. Cesium telluride photocathodes are used to provide sensitivity in the 1700-3100 A spectral range, and techniques for processing these photocathodes are discussed. The preparation and use of polyimide barrier membranes, for protecting the photocathodes from deterioration by film outgassing, are described. A new opaque-photocathode vacuum-ultraviolet-sensitive electrographic detector has been demonstrated, which is based on an oblique-focusing electron optical system similar to that used by Princeton with electron-bombarded CCD arrays. Test results and potential applications of this detector are described.
Carruthers George R.
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