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Title: Flat panel X-ray detector with reduced internal scattering for improved attenuation accuracy and dynamic range

Abstract

An x-ray detector is disclosed that has had all unnecessary material removed from the x-ray beam path, and all of the remaining material in the beam path made as light and as low in atomic number as possible. The resulting detector is essentially transparent to x-rays and, thus, has greatly reduced internal scatter. The result of this is that x-ray attenuation data measured for the object under examination are much more accurate and have an increased dynamic range. The benefits of this improvement are that beam hardening corrections can be made accurately, that computed tomography reconstructions can be used for quantitative determination of material properties including density and atomic number, and that lower exposures may be possible as a result of the increased dynamic range.

Inventors:
 [1];  [2];  [3];  [4]
  1. Santa Fe, NM
  2. White Rock, NM
  3. Albuquerque, NM
  4. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
991713
Patent Number(s):
7812314
Application Number:
12/040,180
Assignee:
The United Sttes of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Smith, Peter D, Claytor, Thomas N, Berry, Phillip C, and Hills, Charles R. Flat panel X-ray detector with reduced internal scattering for improved attenuation accuracy and dynamic range. United States: N. p., 2010. Web.
Smith, Peter D, Claytor, Thomas N, Berry, Phillip C, & Hills, Charles R. Flat panel X-ray detector with reduced internal scattering for improved attenuation accuracy and dynamic range. United States.
Smith, Peter D, Claytor, Thomas N, Berry, Phillip C, and Hills, Charles R. Tue . "Flat panel X-ray detector with reduced internal scattering for improved attenuation accuracy and dynamic range". United States. https://www.osti.gov/servlets/purl/991713.
@article{osti_991713,
title = {Flat panel X-ray detector with reduced internal scattering for improved attenuation accuracy and dynamic range},
author = {Smith, Peter D and Claytor, Thomas N and Berry, Phillip C and Hills, Charles R},
abstractNote = {An x-ray detector is disclosed that has had all unnecessary material removed from the x-ray beam path, and all of the remaining material in the beam path made as light and as low in atomic number as possible. The resulting detector is essentially transparent to x-rays and, thus, has greatly reduced internal scatter. The result of this is that x-ray attenuation data measured for the object under examination are much more accurate and have an increased dynamic range. The benefits of this improvement are that beam hardening corrections can be made accurately, that computed tomography reconstructions can be used for quantitative determination of material properties including density and atomic number, and that lower exposures may be possible as a result of the increased dynamic range.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {10}
}

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