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Proceedings Paper

High-resolution, two-dimensional imaging, microchannel-plate detector for use on a sounding rocket experiment
Author(s): Brett C. Bush; Daniel M. Cotton; Oswald H. W. Siegmund; Supriya Chakrabarti; Walter M. Harris; John T. Clarke
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Paper Abstract

We 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.

Paper Details

Date Published: 1 October 1991
PDF: 12 pages
Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); doi: 10.1117/12.48347
Show Author Affiliations
Brett C. Bush, Univ. of California/Berkeley (United States)
Daniel M. Cotton, Univ. of California/Berkeley (United States)
Oswald H. W. Siegmund, Univ. of California/Berkeley (United States)
Supriya Chakrabarti, Univ. of California/Berkeley (United States)
Walter M. Harris, Univ. of Michigan (United States)
John T. Clarke, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 1549:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II
Oswald H. W. Siegmund; Richard E. Rothschild, Editor(s)

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