Computer Science – Performance
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1764..240c&link_type=abstract
In: Ultraviolet technology IV; Proceedings of the Meeting, San Diego, CA, July 20, 21, 1992 (A93-34426 13-35), p. 240-251.
Computer Science
Performance
1
Fabrication, Microchannel Plates, Multi-Anode Microchannel Arrays, Satellite-Borne Instruments, Ultraviolet Detectors, Hubble Space Telescope, Imaging Spectrometers, Ultraviolet Spectrometers
Scientific paper
Curved-channel microchannel plate (C-plate) improvements resulting from an ongoing NASA STIS microchannel plate (MCP) development program are described. Performance limitations of previous C-plates led to a development program in support of the STIS MAMA UV photon counter, a second generation instrument on the Hubble Space Telescope. C-plate gain, quantum detection efficiency, dark noise, and imaging distortion, which are influenced by channel curvature non-uniformities, have all been improved through use of a new centrifuge fabrication technique. This technique will be described, along with efforts to improve older, more conventional shearing methods. Process optimization methods used to attain targeted C-plate performance goals will be briefly characterized. Newly developed diagnostic measurement techniques to study image distortion, gain uniformity, input bias angle, channel curvature, and ion feedback, will be described. Performance characteristics and initial test results of the improved C-plates will be reported. Future work and applications will also be discussed.
Bybee Richard
Cochran R.
Corbett B. M.
Danks Anthony
Feller Bruce W.
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