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Journal of Electronic Imaging

High-resolution microchannel plate image tube results
Author(s): C. Bruce Johnson; Stanley B. Patton; Edward J. Bender
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Paper Abstract

The present 18-mm active diameter proximity-focused microchannel plate (MCP) image tube design has been modified to produce significantly higher limiting spatial resolution. A glass input window of the "bulls-eye" design with the blackened glass border, reduced cathode-to-MCP spacing, reduced channel center-to-center distance, reduced MCP-to-phosphor screen spacing, a brushed P20 phosphor screen, and a fiber optic output window were used to achieve a limiting resolution in excess of 50 lp/mm. Test results, showing limiting resolution versus applied potentials, are correlated with a simple physical model of performance. The low-light-level white-light sine-wave modulation transfer function, T(f), has been measured to be T(f) = exp[-(f/21.5)1.46], where f is the spatial frequency in cycles per millimeter.

Paper Details

Date Published: 1 July 1992
PDF: 4 pages
J. Electron. Imaging. 1(3) doi: 10.1117/12.59959
Published in: Journal of Electronic Imaging Volume 1, Issue 3
Show Author Affiliations
C. Bruce Johnson, Litton Electron Devices (United States)
Stanley B. Patton, ITT/Electro-Optical Products Div. (United States)
Edward J. Bender, US Army Belvoir RD&E Ctr. (United States)

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