Method of manufacture for microchannel plate having both improve

Details Method of manufacture for microchannel plate having both improve Method of manufacture for microchannel plate having both improve

1995-09-26

1998-07-07

Padgett, Marianne

Coating processes

Electrical product produced

Electron emissive or suppressive

427 77, 427251, 4272555, B05D 512, C23C 1600

Patent

active

057765383

ABSTRACT:
Microchannel plates for use in image intensifiers and night vision devices having both improved gain and signal-to-noise ratio are provided. The microchannel plates disclosed herein provide an initial electron impact area having a surface electron-emissivity coefficient greater than one (1) that is not occluded by low electron-emissivity conductive coatings. In one embodiment angulated deposition of a coating material is used to provide a high electron-emissivity initial electron-impact area while in another embodiment nonmetallic electrodes provide increased amplification of a signal electron. Besides improving gain and sensitivity, the microchannel plates of the present invention provide a higher signal-to-noise ratio, better resolution, high open area ratios and are significantly more cost effective to produce.

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Lerner et al., ed; Encyclopedia of Physics, 2nd ed ; VCH Publishers, Inc, N.Y. 1991 (no month)--excerpts pp. 294-297, 1092-1094, 131-133.

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