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Imaging characteristics of the Extreme Ultraviolet Explorer microchannel plate detectorsThe Extreme Ultraviolet Explorer (EUVE) satellite will conduct an all-sky survey over the wavelength range from 70 A to 760 A using four grazing-incidence telescopes and seven microchannel-plate (MCP) detectors. The imaging photon-counting MCP detectors have active areas of 19.6 cm2. Photon arrival position is determined using a wedge-and-strip anode and associated pulse-encoding electronics. The imaging characteristics of the EUVE flight detectors are presented including image distortion, flat-field response, and spatial differential nonlinearity. Also included is a detailed discussion of image distortions due to the detector mechanical assembly, the wedge-and-strip anode, and the electronics. Model predictions of these distortions are compared to preflight calibration images which show distortions less than 1.3 percent rms of the detector diameter of 50 mm before correction. The plans for correcting these residual detector image distortions to less than 0.1 percent rms are also presented.
Document ID
19890048369
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Vallerga, J. V.
(California Univ. Berkeley, CA, United States)
Kaplan, G. C.
(California Univ. Berkeley, CA, United States)
Siegmund, O. H. W.
(California Univ. Berkeley, CA, United States)
Lampton, M.
(California Univ. Berkeley, CA, United States)
Malina, R. F.
(California, University Berkeley, United States)
Date Acquired
August 14, 2013
Publication Date
February 1, 1989
Publication Information
Publication: IEEE Transactions on Nuclear Science
Volume: 36
ISSN: 0018-9499
Subject Category
Instrumentation And Photography
Accession Number
89A35740
Funding Number(s)
CONTRACT_GRANT: NAS5-29298
Distribution Limits
Public
Copyright
Other

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