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Proceedings Paper

Dynamic modulation transfer function measurements in gated microchannel-plate image intensifiers
Author(s): Matthew C. Thomas; Paul A. Zagarino; George J. Yates
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Paper Abstract

The resolution of microchannel-plate image intensifiers (MCPIIs), when specified by manufacturers, is usually only measured while the MCPII is biased on with dc voltages (dc mode). We present data on the resolution of two proximity focused MCPIIs under both dc bias and pulsed voltage operation (gated mode). The resolution is determined by recording a digital image of the MCPII's output for an input in the form of a spatial impulse. By calculating the Fourier transform of the two-dimensional output images distribution (the output point spread function), the modulation transfer function can be found. The effects of input optical energy density, gate repetition rate, gate width, and input position on the resolution of a standard ITT MCPII and a high strip current ITT MCPII are studied.

Paper Details

Date Published: 19 January 1993
PDF: 8 pages
Proc. SPIE 1757, Ultrahigh- and High-Speed Photography, Videography, and Photonics, (19 January 1993); doi: 10.1117/12.139147
Show Author Affiliations
Matthew C. Thomas, EG&G Energy Measurements, Inc. (United States)
Paul A. Zagarino, EG&G Energy Measurements, Inc. (United States)
George J. Yates, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 1757:
Ultrahigh- and High-Speed Photography, Videography, and Photonics
Donald R. Snyder, Editor(s)

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