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High efficiency photon counting detectors for the FAUST Spacelab far ultraviolet astronomy payloadThe performances of sealed tube microchannel-plate position sensitive detectors having transmission CsI photocathodes or opaque CsI photocathodes are compared. These devices were developed for the FAUST Spacelab payload to accomplish imaging surveys in the band between 1300 A and 1800 A. It is demonstrated that photocathode quantum efficiencies in excess of 40 percent at 1216 A have been achieved with the transmission and the opaque CsI photocathodes. The effect of the photoelectron trajectory on the spatial resolution is assessed. Spatial resolution of less than 70 microns FWHM has been obtained and is maintained up to event rates of 50,000/sec. Background rates of 0.55 events sq cm per sec have been achieved and low distortion (less than 1 percent) imaging has been demonstrated.
Document ID
19870038192
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Siegmund, O. H. W.
(California Univ. Berkeley, CA, United States)
Lampton, M.
(California Univ. Berkeley, CA, United States)
Bixler, J.
(California Univ. Berkeley, CA, United States)
Vallerga, J.
(California Univ. Berkeley, CA, United States)
Bowyer, S.
(California, University Berkeley, United States)
Date Acquired
August 13, 2013
Publication Date
February 1, 1987
Publication Information
Publication: IEEE Transactions on Nuclear Science
Volume: NS-34
ISSN: 0018-9499
Subject Category
Spacecraft Instrumentation
Accession Number
87A25466
Funding Number(s)
CONTRACT_GRANT: NAS8-32577
CONTRACT_GRANT: JPL-956650
CONTRACT_GRANT: NASW-4088
Distribution Limits
Public
Copyright
Other

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