skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ground plane insulating coating for proximity focused devices

Patent ·
OSTI ID:672587

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.

Research Organization:
Univ. of California (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
US 5,780,961/A/
Application Number:
PAN: 8-026,797
OSTI ID:
672587
Resource Relation:
Other Information: PBD: 14 Jul 1998
Country of Publication:
United States
Language:
English