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:
-
- Oakland, CA
- Pleasanton, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 873704
- Patent Number(s):
- 6225635
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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}
}