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Title: Optical fiducial timing system for X-ray streak cameras with aluminum coated optical fiber ends

Abstract

An optical fiducial timing system is provided for use with interdependent groups of X-ray streak cameras (18). The aluminum coated (80) ends of optical fibers (78) are positioned with the photocathodes (20, 60, 70) of the X-ray streak cameras (18). The other ends of the optical fibers (78) are placed together in a bundled array (90). A fiducial optical signal (96), that is comprised of 2.omega. or 1.omega. laser light, after introduction to the bundled array (90), travels to the aluminum coated (82) optical fiber ends and ejects quantities of electrons (84) that are recorded on the data recording media (52) of the X-ray streak cameras (18). Since both 2.omega. and 1.omega. laser light can travel long distances in optical fiber with only a slight attenuation, the initial arial power density of the fiducial optical signal (96) is well below the damage threshold of the fused silica or other material that comprises the optical fibers (78, 90). Thus the fiducial timing system can be repeatably used over long durations of time.

Inventors:
 [1];  [2];  [3];  [3]
  1. Oakland, CA
  2. Pleasanton, CA
  3. Livermore, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866523
Patent Number(s):
US 4730106
Assignee:
United States Department of Energy (Washington, DC)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
optical; fiducial; timing; x-ray; streak; cameras; aluminum; coated; fiber; provided; interdependent; 18; 80; fibers; 78; positioned; photocathodes; 20; 60; 70; placed; bundled; array; 90; signal; 96; comprised; omega; laser; light; introduction; travels; 82; ejects; quantities; electrons; 84; recorded; data; recording; media; 52; travel; distances; slight; attenuation; initial; arial; power; density; below; damage; threshold; fused; silica; material; comprises; repeatably; durations; time; streak cameras; fused silica; damage threshold; recording media; x-ray streak; streak camera; optical fibers; optical fiber; laser light; optical signal; power density; aluminum coated; coated optical; optical fiducial; fiducial timing; data recording; age threshold; light attenuation; /250/313/385/

Citation Formats

Nilson, David G, Campbell, E Michael, MacGowan, Brian J, and Medecki, Hector. Optical fiducial timing system for X-ray streak cameras with aluminum coated optical fiber ends. United States: N. p., 1988. Web.
Nilson, David G, Campbell, E Michael, MacGowan, Brian J, & Medecki, Hector. Optical fiducial timing system for X-ray streak cameras with aluminum coated optical fiber ends. United States.
Nilson, David G, Campbell, E Michael, MacGowan, Brian J, and Medecki, Hector. Fri . "Optical fiducial timing system for X-ray streak cameras with aluminum coated optical fiber ends". United States. https://www.osti.gov/servlets/purl/866523.
@article{osti_866523,
title = {Optical fiducial timing system for X-ray streak cameras with aluminum coated optical fiber ends},
author = {Nilson, David G and Campbell, E Michael and MacGowan, Brian J and Medecki, Hector},
abstractNote = {An optical fiducial timing system is provided for use with interdependent groups of X-ray streak cameras (18). The aluminum coated (80) ends of optical fibers (78) are positioned with the photocathodes (20, 60, 70) of the X-ray streak cameras (18). The other ends of the optical fibers (78) are placed together in a bundled array (90). A fiducial optical signal (96), that is comprised of 2.omega. or 1.omega. laser light, after introduction to the bundled array (90), travels to the aluminum coated (82) optical fiber ends and ejects quantities of electrons (84) that are recorded on the data recording media (52) of the X-ray streak cameras (18). Since both 2.omega. and 1.omega. laser light can travel long distances in optical fiber with only a slight attenuation, the initial arial power density of the fiducial optical signal (96) is well below the damage threshold of the fused silica or other material that comprises the optical fibers (78, 90). Thus the fiducial timing system can be repeatably used over long durations of time.},
doi = {},
url = {https://www.osti.gov/biblio/866523}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

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