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High resolution, two-dimensional imaging, microchannel plate detector for use on a sounding rocket experimentWe discuss a high resolution microchannel plate (MCP) imaging detector to be used in measurements of Doppler-shifted hydrogen Lyman-alpha line emission from Jupiter and the interplanetary medium. The detector is housed in a vacuum-tight stainless steel cylinder (to provide shielding from magnetic fields) with a MgF2 window. Operating at nominal voltage, the four plate configuration provides a gain of 1.2 x 10 exp 7 electrons per incident photon. The wedge-and-strip anode has two-dimensional imaging capabilities, with a resolution of 40 microns FWHM over a one centimeter diameter area. The detector has a high quantum efficiency while retaining a low background rate. A KBr photocathode is used to enhance the quantum efficiency of the bare MCPs to a value of 35 percent at Lyman-alpha.
Document ID
19930050394
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bush, Brett C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cotton, Daniel M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Siegmund, Oswald H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chakrabarti, Supriya
(California Univ. Berkeley, United States)
Harris, Walter
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Clarke, John
(Michigan Univ. Ann Arbor, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: EUV, X-ray, and gamma-ray instrumentation for astronomy II; Proceedings of the Meeting, San Diego, CA, July 24-26, 1991 (A93-34376 13-35)
Publisher: Society of Photo-Optical Instrumentation Engineers
Subject Category
Instrumentation And Photography
Accession Number
93A34391
Funding Number(s)
CONTRACT_GRANT: NAG5-660
Distribution Limits
Public
Copyright
Other

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