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Updated: Mar 15, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Hard X-ray phase-contrast tomography of non-homogeneous specimens: grating interferometry versus propagation-based
Maite Ruiz-Yaniz1, Irene Zanette2, Adrian Sarapata2
1European Synchrotron Radiation Facility, 71 Rue des Martyrs, 38000 Grenoble, France.
Abstract:
X-ray phase-contrast imaging is an effective approach to drastically increase the contrast and sensitivity of microtomographic techniques. Numerous approaches to depict the real part of the complex-valued refractive index of a specimen are nowadays available. A comparative study using experimental data from grating-based interferometry and propagation-based phase contrast combined with single-distance phase retrieval applied to a non-homogeneous sample is presented (acquired at beamline ID19-ESRF). It is shown that grating-based interferometry can handle density gradients in a superior manner. The study underlines the complementarity of the two techniques for practical applications.
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