Snapshot full-volume coded aperture x-ray diffraction tomography

Joel A. Greenberg, David J. Brady

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

X-ray diffraction tomography (XRDT) is a well-established technique that makes it possible to identify the material composition of an object throughout its volume. We show that using coded apertures to structure the measured scatter signal gives rise to a family of imaging architectures than enables snapshot XRDT in up to 4-dimensions. We consider pencil, fan, and cone beam snapshot XRDT and show results from both experimental and simulation-based studies. We find that, while lower-dimensional systems typically result in higher imaging fidelity, higher-dimensional systems can perform adequately for a specific task at orders of magnitude faster scan times.

Original languageEnglish (US)
Title of host publicationAnomaly Detection and Imaging with X-Rays (ADIX)
EditorsMichael E. Gehm, Amit Ashok, Mark A. Neifeld
PublisherSPIE
ISBN (Electronic)9781510600881
DOIs
StatePublished - 2016
Externally publishedYes
EventAnomaly Detection and Imaging with X-Rays (ADIX) Conference - Baltimore, United States
Duration: Apr 19 2016Apr 20 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9847
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAnomaly Detection and Imaging with X-Rays (ADIX) Conference
Country/TerritoryUnited States
CityBaltimore
Period4/19/164/20/16

Keywords

  • Coded aperture
  • Compressed sensing
  • Material identification
  • Tomography
  • X-ray diffraction
  • X-ray imaging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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