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X-ray diffraction tomography with limited projection information.

Zheyuan Zhu1, Alexander Katsevich2, Anuj J Kapadia3

  • 1CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, 32816, USA.

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|January 12, 2018
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Summary
This summary is machine-generated.

A new table-top X-ray diffraction tomography (XDT) system enables faster imaging of specific regions within samples. This advancement reduces scan times sixfold, making advanced material analysis more accessible for medical and industrial applications.

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Area of Science:

  • Materials Science
  • Medical Imaging
  • Physics

Background:

  • X-ray diffraction tomography (XDT) offers high contrast and material identification capabilities.
  • Conventional XDT often requires synchrotron facilities due to long acquisition times.
  • Current imaging needs often focus on specific regions of interest (ROI), not entire objects.

Purpose of the Study:

  • To develop a table-top XDT system for imaging internal regions of interest (ROI).
  • To enable reconstruction from truncated projections for faster XDT scans.
  • To reduce imaging time and radiation dose for practical applications.

Main Methods:

  • Development of a table-top XDT system.
  • Implementation of image reconstruction techniques for truncated diffraction data.
  • Demonstration of spatially-variant diffraction form factor analysis from internal sample regions.

Main Results:

  • The developed system successfully resolves spatially-variant diffraction form factors from internal sample regions.
  • Interior reconstruction maintained material contrast.
  • Imaging time was reduced by sixfold compared to conventional methods.

Conclusions:

  • The proposed table-top XDT system accelerates acquisition and enables ROI-focused imaging.
  • This method enhances the practicality of XDT for medical and industrial applications.
  • The system offers potential for portable imaging with reduced radiation exposure.