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Proceedings Paper

High-resolution microchannel plate image tube development
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 fiberoptic output window were used to achieve a limiting resolution in excess of 50 lp/mm. Test results, showing limiting resolution vs applied potentials, are correlated with a simple physical model of performance. The low-light- level white-light sinewave modulation transfer function, T(f), has been measured to be T(f) equals exp (-(f/21.5)1.46), where f is the spatial frequency in cycles per millimeter.

Paper Details

Date Published: 1 June 1991
PDF: 11 pages
Proc. SPIE 1449, Electron Image Tubes and Image Intensifiers II, (1 June 1991); doi: 10.1117/12.44260
Show Author Affiliations
C. Bruce Johnson, ITT/Electro-Optical Products Div. (United States)
Stanley B. Patton, ITT/Electro-Optical Products Div. (United States)
Edward J. Bender, U.S. Army Ctr. for Night Vision and Electro-Optics (United States)

Published in SPIE Proceedings Vol. 1449:
Electron Image Tubes and Image Intensifiers II
Illes P. Csorba, Editor(s)

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