Performance of a 40-mm unfilmed microchannel plate intensifier

Peter David Read; Ian G. van Breda; Timothy J. Norton

doi:10.1117/12.19095

1 July 1990 Performance of a 40-mm unfilmed microchannel plate intensifier

Peter David Read, Ian G. van Breda, Timothy J. Norton

Proceedings Volume 1235, Instrumentation in Astronomy VII; (1990) https://doi.org/10.1117/12.19095
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

A prototype 40-mm-diameter proximity-focused microchannel-plate intensifier intended for photon-counting applications in both ground-based and space astronomy is described. The intensifier described is a sealed-window device and is also well suited to open-window ultraviolet applications in space astronomy. The tube makes use of a combination of an unfilmed curved-channel plate (C-plate), to prevent ion feedback, and a single straight-channel plate, aligned to prevent optical feedback. The tube has excellent cosmetic quality and shows a counting efficiency superior to that of filmed plate devices reported previously, giving an overall detective quantum efficiency at least equal to that of the best four-stage magnetically focussed intensifiers.

Citation Download Citation

Peter David Read, Ian G. van Breda, and Timothy J. Norton "Performance of a 40-mm unfilmed microchannel plate intensifier", Proc. SPIE 1235, Instrumentation in Astronomy VII, (1 July 1990); https://doi.org/10.1117/12.19095

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