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Title: Ground plane insulating coating for proximity focused devices

Abstract

A thin layer of alumina (aluminum oxide) is coated onto the ground plane of a microchannel plate (MCP) without covering the pores of the MCP so it does not effect the performance. The coating is sputtered onto the ground plane at a very steep angle. The addition of the thin dielectric coating of alumina greatly improves the spatial resolution of proximity focused image intensifiers using a narrow gap between the phosphor screen and the MCP. With the coating on the ground plane and the same gap the phosphor screen can be ran at 9000 volts, as compared to 3 kV without the coating. 3 figs.

Inventors:
Issue Date:
Research Org.:
Univ. of California (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672587
Patent Number(s):
5780961
Application Number:
PAN: 8-026,797
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 14 Jul 1998
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; MICROCHANNEL ELECTRON MULTIPLIERS; ALUMINIUM OXIDES; SPUTTERING; IMAGE INTENSIFIERS; COATINGS; DIELECTRIC MATERIALS; SPATIAL RESOLUTION; DISPLAY DEVICES

Citation Formats

Power, G D. Ground plane insulating coating for proximity focused devices. United States: N. p., 1998. Web.
Power, G D. Ground plane insulating coating for proximity focused devices. United States.
Power, G D. Tue . "Ground plane insulating coating for proximity focused devices". United States.
@article{osti_672587,
title = {Ground plane insulating coating for proximity focused devices},
author = {Power, G D},
abstractNote = {A thin layer of alumina (aluminum oxide) is coated onto the ground plane of a microchannel plate (MCP) without covering the pores of the MCP so it does not effect the performance. The coating is sputtered onto the ground plane at a very steep angle. The addition of the thin dielectric coating of alumina greatly improves the spatial resolution of proximity focused image intensifiers using a narrow gap between the phosphor screen and the MCP. With the coating on the ground plane and the same gap the phosphor screen can be ran at 9000 volts, as compared to 3 kV without the coating. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {7}
}