Quantitative visibility-contrast tomography in the X-ray Talbot interferometry

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

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

2 Citations (Scopus)

Abstract

We propose a tomographic method using X-ray Talbot interferometry for mapping three-dimensional distribution of parameters characterizing microstructures, which are typically of the order of μm in size and cannot be resolved by the imaging system, in a sample. In the method we use reduction in fringe visibility, which is due to such unresolvable microstructures, of moiré images obtained in the interferometry. We applied this method to a sample of melamine sponge containing chloroprene rubber. We performed tomographies at several Talbot orders and obtained the dependencies of the reconstructed values on the Talbot order for voxels. The parameters obtained by the least-squares fitting to the dependencies were consistent with those previously obtained from projection images for each material. Our approach provides three-dimensional structural information on unresolvable microstructures in real space, which is only accessible through the ultra-small-angle X-ray scattering (USAXS) in reciprocal space, and is expected to be broadly applicable to material, biological, and medical sciences.

Original languageEnglish
Title of host publicationInternational Workshop on X-Ray and Neutron Phase Imaging with Gratings
Pages211-216
Number of pages6
DOIs
Publication statusPublished - 2012 Dec 1
Externally publishedYes
EventInternational Workshop on X-Ray and Neutron Phase Imaging with Gratings, XNPIG 2012 - Tokyo, Japan
Duration: 2012 Mar 52012 Mar 7

Publication series

NameAIP Conference Proceedings
Volume1466
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Workshop on X-Ray and Neutron Phase Imaging with Gratings, XNPIG 2012
CountryJapan
CityTokyo
Period12/3/512/3/7

Keywords

  • X-ray phase imaging
  • tomography
  • ultra-small angle scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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