Four-dimensional X-ray phase tomography with Talbot interferometry and white synchrotron radiation: Dynamic observation of a living worm

Atsushi Momose, Wataru Yashiro, Sébastien Harasse, Hiroaki Kuwabara

Research output: Contribution to journalArticlepeer-review

88 Citations (Scopus)

Abstract

X-ray Talbot interferometry is attractive as a method for X-ray phase imaging and phase tomography for objects that weakly absorb X-rays. Because X-ray Talbot interferometry has the advantage that X-rays of a broad energy bandwidth can be used, high-speed X-ray phase imaging is possible with white synchrotron radiation. In this paper, we demonstrate time-resolved three-dimensional observation with X-ray Talbot interferometry (namely, four-dimensional X-ray phase tomography). Differential phase images, from which a phase tomogram was reconstructed, were obtained through the Fourier-transform method, unlike the phase-stepping method that requires several (at least three) moirè images to be measured sequentially in order to generate one differential phase image. We demonstrate dynamic observation of a living worm in three dimensions with a time resolution of 0.5 s, visualizing a drastic change in the respiratory tract.

Original languageEnglish
Pages (from-to)8423-8432
Number of pages10
JournalOptics Express
Volume19
Issue number9
DOIs
Publication statusPublished - 2011 Apr 25
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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