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Title: System and method for optically locating microchannel positions

Abstract

A system and method is disclosed for optically locating a microchannel position. A laser source generates a primary laser beam which is directed at a microchannel plate. The microchannel plates include microchannels at various locations. A back-reflectance beam detector receives a back-reflected beam from the plate. The back-reflected beam is generated when the primary beam reflects off of the plate. A photodiode circuit generates a trigger signal when the back-reflected beam exceeds a predetermined threshold, indicating a presence of the microchannel. The method of the present invention includes the steps of generating a primary beam, directing the primary beam to a plate containing a microchannel, receiving from the plate a back-reflected beam generated in response to the primary beam, and generating a trigger signal when the back-reflected beam exceeds a predetermined threshold which corresponds to a presence of the microchannel.

Inventors:
 [1];  [2];  [3];  [3]
  1. (Oakland, CA)
  2. (Pleasanton, CA)
  3. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873704
Patent Number(s):
6225635
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; optically; locating; microchannel; positions; disclosed; position; laser; source; generates; primary; beam; directed; plate; plates; microchannels; various; locations; back-reflectance; detector; receives; back-reflected; generated; reflects; photodiode; circuit; trigger; signal; exceeds; predetermined; threshold; indicating; presence; steps; generating; directing; containing; receiving; response; corresponds; channel plate; circuit generates; predetermined threshold; laser beam; laser source; microchannel plate; plate containing; primary beam; trigger signal; reflected beam; various locations; microchannel plates; source generates; beam detector; beam generated; optically locating; microchannel position; source generate; detector receives; /250/

Citation Formats

Brewer, Laurence R., Kimbrough, Joseph, Balch, Joseph, and Davidson, J. Courtney. System and method for optically locating microchannel positions. United States: N. p., 2001. Web.
Brewer, Laurence R., Kimbrough, Joseph, Balch, Joseph, & Davidson, J. Courtney. System and method for optically locating microchannel positions. United States.
Brewer, Laurence R., Kimbrough, Joseph, Balch, Joseph, and Davidson, J. Courtney. Mon . "System and method for optically locating microchannel positions". United States. https://www.osti.gov/servlets/purl/873704.
@article{osti_873704,
title = {System and method for optically locating microchannel positions},
author = {Brewer, Laurence R. and Kimbrough, Joseph and Balch, Joseph and Davidson, J. Courtney},
abstractNote = {A system and method is disclosed for optically locating a microchannel position. A laser source generates a primary laser beam which is directed at a microchannel plate. The microchannel plates include microchannels at various locations. A back-reflectance beam detector receives a back-reflected beam from the plate. The back-reflected beam is generated when the primary beam reflects off of the plate. A photodiode circuit generates a trigger signal when the back-reflected beam exceeds a predetermined threshold, indicating a presence of the microchannel. The method of the present invention includes the steps of generating a primary beam, directing the primary beam to a plate containing a microchannel, receiving from the plate a back-reflected beam generated in response to the primary beam, and generating a trigger signal when the back-reflected beam exceeds a predetermined threshold which corresponds to a presence of the microchannel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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