High-resolution microchannel plate image tube results

C. Bruce Johnson; Stanley B. Patton; Edward J. Bender

doi:10.1117/12.59959

1 July 1992 High-resolution microchannel plate image tube results

C. Bruce Johnson, Stanley B. Patton, Edward J. Bender

Author Affiliations +

Journal of Electronic Imaging, Vol. 1, Issue 3, (July 1992). https://doi.org/10.1117/12.59959

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.

Citation Download Citation

C. Bruce Johnson, Stanley B. Patton, and Edward J. Bender "High-resolution microchannel plate image tube results," Journal of Electronic Imaging 1(3), (1 July 1992). https://doi.org/10.1117/12.59959

Published: 1 July 1992

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