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Area of Science:

  • Physics
  • Materials Science
  • Imaging Technology

Background:

  • High energy X-ray phase contrast tomography is crucial for imaging dense materials.
  • X-ray speckle-based imaging offers multimodal contrast but is limited by slow data acquisition in step-scan mode.
  • Current methods struggle with resolution-speed trade-offs for phase tomography.

Purpose of the Study:

  • To develop a faster data acquisition strategy for X-ray speckle-based phase tomography.
  • To maintain high spatial resolution while reducing scan times.
  • To extend speckle-based phase tomography to high X-ray energy applications.

Main Methods:

  • Implemented a fly-scan mode for data acquisition in X-ray speckle-based phase tomography.
  • Utilized near-field X-ray speckle imaging.
  • Extended the technique to operate at 120 keV X-ray energy.

Main Results:

  • Achieved a data acquisition speed increase of over one order of magnitude compared to step-scan methods.
  • Maintained high spatial resolution without compromising image quality.
  • Successfully demonstrated the technique in the high X-ray energy region.

Conclusions:

  • The fly-scan mode offers a significant advancement for fast and high-resolution X-ray speckle-based phase tomography.
  • This method is applicable to challenging high-energy imaging scenarios.
  • The reduced acquisition time and dose open new application possibilities.