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Title: An energy dispersive bent Laue monochromator for K-edge subtraction imaging

Abstract

K-Edge Subtraction (KES) is a powerful synchrotron imaging method that allows the quantifiable determination of a contrast element (e.g. iodine) and matrix material (usually represented as water) in both projection imaging and computed tomography. A bent Laue monochromator has been developed that has very good focal and energy dispersive properties for KES. Approximately 5% of the vertical beam profile is involved in “edge crossing” energies, thus no splitter is employed as has been done with previous implementations where approximately 33% of the beam size was blocked. The beam can be narrowed vertically allowing a smaller crossover angle than a splitter based system which minimizes artifacts. The combination of good spatial resolution, energy dispersive properties, flux and a unique approach to data analysis make this system nearly ideal for KES.

Authors:
 [1]; ;  [2]; ;  [3];  [4];  [5]
  1. Biomedical Engineering Division, University of Saskatchewan, Saskatoon, SK (Canada)
  2. Physics and Engineering Physics, University of Saskatchewan, Saskatoon, SK (Canada)
  3. Canadian Light Source Inc., Saskatoon, SK (Canada)
  4. Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, SK (Canada)
  5. (Canada)
Publication Date:
OSTI Identifier:
22608389
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1741; Journal Issue: 1; Conference: SRI2015: 12. international conference on synchrotron radiation instrumentation, New York, NY (United States), 6-10 Jul 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; APPROXIMATIONS; BEAM PROFILES; BEAMS; COMPUTERIZED TOMOGRAPHY; DATA ANALYSIS; IMAGES; MONOCHROMATORS; SPATIAL RESOLUTION; SYNCHROTRONS

Citation Formats

Samadi, Nazanin, E-mail: Nazanin.Samadi@usask.ca, Martinson, Mercedes, Bassey, Bassey, Gomez, Ariel, Belev, George, Chapman, Dean, and Canadian Light Source Inc., Saskatoon, SK. An energy dispersive bent Laue monochromator for K-edge subtraction imaging. United States: N. p., 2016. Web. doi:10.1063/1.4952876.
Samadi, Nazanin, E-mail: Nazanin.Samadi@usask.ca, Martinson, Mercedes, Bassey, Bassey, Gomez, Ariel, Belev, George, Chapman, Dean, & Canadian Light Source Inc., Saskatoon, SK. An energy dispersive bent Laue monochromator for K-edge subtraction imaging. United States. doi:10.1063/1.4952876.
Samadi, Nazanin, E-mail: Nazanin.Samadi@usask.ca, Martinson, Mercedes, Bassey, Bassey, Gomez, Ariel, Belev, George, Chapman, Dean, and Canadian Light Source Inc., Saskatoon, SK. Wed . "An energy dispersive bent Laue monochromator for K-edge subtraction imaging". United States. doi:10.1063/1.4952876.
@article{osti_22608389,
title = {An energy dispersive bent Laue monochromator for K-edge subtraction imaging},
author = {Samadi, Nazanin, E-mail: Nazanin.Samadi@usask.ca and Martinson, Mercedes and Bassey, Bassey and Gomez, Ariel and Belev, George and Chapman, Dean and Canadian Light Source Inc., Saskatoon, SK},
abstractNote = {K-Edge Subtraction (KES) is a powerful synchrotron imaging method that allows the quantifiable determination of a contrast element (e.g. iodine) and matrix material (usually represented as water) in both projection imaging and computed tomography. A bent Laue monochromator has been developed that has very good focal and energy dispersive properties for KES. Approximately 5% of the vertical beam profile is involved in “edge crossing” energies, thus no splitter is employed as has been done with previous implementations where approximately 33% of the beam size was blocked. The beam can be narrowed vertically allowing a smaller crossover angle than a splitter based system which minimizes artifacts. The combination of good spatial resolution, energy dispersive properties, flux and a unique approach to data analysis make this system nearly ideal for KES.},
doi = {10.1063/1.4952876},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1741,
place = {United States},
year = {Wed Jul 27 00:00:00 EDT 2016},
month = {Wed Jul 27 00:00:00 EDT 2016}
}