16 September 2008 X-ray phase-contrast imaging with 2D grating interferometry
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X-ray imaging is of paramount importance for clinical and pre-clinical applications but it is fundamentally restricted by the attenuation-based contrast mechanism, which has remained essentially the same since Roentgen's discovery a century ago. Recently, based on the Talbot effect, groundbreaking work was reported using 1D gratings for x-ray phase-contrast imaging with a hospital-grade x-ray tube instead of a synchrotron or micro-focused source. In this paper, we report an extension of our earlier 2D-grating-based work to the case of Gaussian beams. This 2D-grating-based approach has the potential to reduce the imaging time, increase the spatial coherence, and enhance the accuracy and robustness compared to current 1D-grating-based phase-contrast imaging techniques.
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Ming Jiang, Ming Jiang, Christopher Lee Wyatt, Christopher Lee Wyatt, Ge Wang, Ge Wang, "X-ray phase-contrast imaging with 2D grating interferometry", Proc. SPIE 7078, Developments in X-Ray Tomography VI, 707816 (16 September 2008); doi: 10.1117/12.794069; https://doi.org/10.1117/12.794069

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