Four-dimensional X-ray phase tomography with Talbot interferometer and white synchrotron light

Atsushi Momose, Wataru Yashiro, Sebastien Harasse, Hiroaki Kuwabara, Katsuyuki Kawabata

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

4 Citations (Scopus)

Abstract

Taking advantage of the fact that an X-ray Talbot interferometer functions with X-rays of a broad energy bandwidth, high-speed X-ray phase tomography has been demonstrated by using white synchrotron light. Time resolution in addition to three-dimensional spatial resolution has been attained, and we report this achievement as the first four-dimensional (4D) X-ray phase tomography. Moire image movies of samples rotating at a speed of 1 or 2 rps generated by a Talbot interferometer were recorded at a frame rate of up to 1 kf/s, and differential phase image movies of the same frame rate were created by the Fourier-transform method. Consequently, a sub-second time resolution was achieved in the 4D phase tomography, while the spatial resolution was below 0.1 mm and 0.05 mm in axial and in-plane directions, respectively. An X-ray Talbot interferometer generates visibility images in addition to differential phase images, showing the distribution of microstructures, which cause ultra-small angle scattering but cannot be resolved individually with system spatial resolution. Tomographic image reconstruction from the visibility images was also demonstrated.

Original languageEnglish
Title of host publicationDevelopments in X-Ray Tomography VII
Volume7804
DOIs
Publication statusPublished - 2010 Dec 1
Externally publishedYes
EventDevelopments in X-Ray Tomography VII - San Diego, CA, United States
Duration: 2010 Aug 22010 Aug 5

Other

OtherDevelopments in X-Ray Tomography VII
CountryUnited States
CitySan Diego, CA
Period10/8/210/8/5

Keywords

  • grating
  • interferometry
  • live imaging
  • phase imaging
  • phase tomography
  • synchrotron radiation
  • Talbot effect

ASJC Scopus subject areas

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

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