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Title: Flexible composite radiation detector

Abstract

A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. The binder is transparent to the scintillator emission. The composite is seamless and can be made large and in a wide variety of shapes. Importantly, the composite can be tailored to emit light in a spectral region that matches the optimum response of photomultipliers (about 400 nanometers) or photodiodes (about 600 nanometers), which maximizes the overall detector efficiency.

Inventors:
 [1];  [2];  [2];  [2];  [2]
  1. Santa Fe, NM
  2. Los Alamos, NM
Publication Date:
Research Org.:
University of California; Los Alamos National Laboratory (LANL), Los Alamos, NM
Sponsoring Org.:
USDOE
OSTI Identifier:
908037
Patent Number(s):
7,145,149
Application Number:
10/946,025
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) LANL
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Cooke, D Wayne, Bennett, Bryan L, Muenchausen, Ross E, Wrobleski, Debra A, and Orler, Edward B. Flexible composite radiation detector. United States: N. p., 2006. Web.
Cooke, D Wayne, Bennett, Bryan L, Muenchausen, Ross E, Wrobleski, Debra A, & Orler, Edward B. Flexible composite radiation detector. United States.
Cooke, D Wayne, Bennett, Bryan L, Muenchausen, Ross E, Wrobleski, Debra A, and Orler, Edward B. Tue . "Flexible composite radiation detector". United States. doi:. https://www.osti.gov/servlets/purl/908037.
@article{osti_908037,
title = {Flexible composite radiation detector},
author = {Cooke, D Wayne and Bennett, Bryan L and Muenchausen, Ross E and Wrobleski, Debra A and Orler, Edward B},
abstractNote = {A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. The binder is transparent to the scintillator emission. The composite is seamless and can be made large and in a wide variety of shapes. Importantly, the composite can be tailored to emit light in a spectral region that matches the optimum response of photomultipliers (about 400 nanometers) or photodiodes (about 600 nanometers), which maximizes the overall detector efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 05 00:00:00 EST 2006},
month = {Tue Dec 05 00:00:00 EST 2006}
}

Patent:

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  • An optimized examination system and method based on the Reverse Geometry X-Ray{trademark} (RGX{trademark}) radiography technique are presented. The examination system comprises a radiation source, at least one flexible, miniature radiation detector probe positioned in appropriate proximity to the object to be examined and to the radiation source with the object located between the source and the probe, a photodetector device attachable to an end of the miniature radiation probe, and a control unit integrated with a display device connected to the photodetector device. The miniature radiation detector probe comprises a scintillation element, a flexible light guide having a first endmore » optically coupled to the scintillation element and having a second end attachable to the photodetector device, and an opaque, environmentally-resistant sheath surrounding the flexible light guide. The probe may be portable and insertable, or may be fixed in place within the object to be examined. An enclosed, flexible, liquid light guide is also presented, which comprises a thin-walled flexible tube, a liquid, preferably mineral oil, contained within the tube, a scintillation element located at a first end of the tube, closures located at both ends of the tube, and an opaque, environmentally-resistant sheath surrounding the flexible tube. The examination system and method have applications in non-destructive material testing for voids, cracks, and corrosion, and may be used in areas containing hazardous materials. In addition, the system and method have applications for medical and dental imaging. 5 figs.« less
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