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

Title: Collimator application for microchannel plate image intensifier resolution improvement

Abstract

A collimator is included in a microchannel plate image intensifier (MCPI). Collimators can be useful in improving resolution of MCPIs by eliminating the scattered electron problem and by limiting the transverse energy of electrons reaching the screen. Due to its optical absorption, a collimator will also increase the extinction ratio of an intensifier by approximately an order of magnitude. Additionally, the smooth surface of the collimator will permit a higher focusing field to be employed in the MCP-to-collimator region than is currently permitted in the MCP-to-screen region by the relatively rough and fragile aluminum layer covering the screen. Coating the MCP and collimator surfaces with aluminum oxide appears to permit additional significant increases in the field strength, resulting in better resolution. 2 figs.

Inventors:
Issue Date:
Research Org.:
Univ. of California (United States)
OSTI Identifier:
201522
Patent Number(s):
5495141
Application Number:
PAN: 8-196,405
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 27 Feb 1996
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; MICROCHANNEL ELECTRON MULTIPLIERS; IMAGE INTENSIFIERS; COLLIMATORS; PERFORMANCE; COATINGS

Citation Formats

Thomas, S W. Collimator application for microchannel plate image intensifier resolution improvement. United States: N. p., 1996. Web.
Thomas, S W. Collimator application for microchannel plate image intensifier resolution improvement. United States.
Thomas, S W. Tue . "Collimator application for microchannel plate image intensifier resolution improvement". United States.
@article{osti_201522,
title = {Collimator application for microchannel plate image intensifier resolution improvement},
author = {Thomas, S W},
abstractNote = {A collimator is included in a microchannel plate image intensifier (MCPI). Collimators can be useful in improving resolution of MCPIs by eliminating the scattered electron problem and by limiting the transverse energy of electrons reaching the screen. Due to its optical absorption, a collimator will also increase the extinction ratio of an intensifier by approximately an order of magnitude. Additionally, the smooth surface of the collimator will permit a higher focusing field to be employed in the MCP-to-collimator region than is currently permitted in the MCP-to-screen region by the relatively rough and fragile aluminum layer covering the screen. Coating the MCP and collimator surfaces with aluminum oxide appears to permit additional significant increases in the field strength, resulting in better resolution. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {2}
}