We demonstrate computerized tomography (CT) reconstructions from absorption, phase and dark-field signals obtained from scans acquired when the x-ray probe light is modulated with speckle. Two different interlaced schemes are proposed to reduce the number of sample exposures. First, the already demonstrated x-ray speckle-vector tracking (XSVT) concept for projection imaging allows the three signal CT reconstructions from multiple images per projection. Second, a modified XSVT approach is shown to provide absorption and phase reconstructions, this time from a single image per angular projection. Reconstructions from data obtained at a synchrotron facility emphasize the potential of the approaches for the imaging of complex samples.
@article{arxiv.1507.05807,
title = {X-Ray Multimodal Tomography Using Speckle-Vector Tracking},
author = {Sebastien Berujon and Eric Ziegler},
journal= {arXiv preprint arXiv:1507.05807},
year = {2016}
}