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Proceedings Paper

Low Noise Microchannel Plates
Author(s): W B Feller; L M Cook; G W Fraser; J F Pearson; S S Murray; M R Garcia
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Paper Abstract

A new type of microchannel plate (MCP) is described which possesses extremely low intrinsic background noise. This property was achieved by fabricating the MCP from a newly developed glass formulation which was designed to be essentially free of radioisotopes. New measurements are presented on recently fabricated low noise MCPs which show that these plates yield background count rates several times lower than the quietest MCPs available. The results of radioisotope assays performed on the first two groups of prototype low noise MCPs are reported; these assays suggest that even further reductions in noise can be achieved. Improvements made possible in the sensitivity of MCP detectors are discussed.

Paper Details

Date Published: 14 April 1989
PDF: 12 pages
Proc. SPIE 1072, Image Intensification, (14 April 1989); doi: 10.1117/12.952548
Show Author Affiliations
W B Feller, University of Leicester (England)
L M Cook, Galileo Electro-Optics Corporation (United States)
G W Fraser, Galileo Electro-Optics Corporation (United States)
J F Pearson, University of Leicester (England)
S S Murray, Harvard College Observatory (United States)
M R Garcia, Harvard College Observatory (United States)

Published in SPIE Proceedings Vol. 1072:
Image Intensification
Illes P. Csorba, Editor(s)

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