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Proceedings Paper

High energy near- and far-field ptychographic tomography at the ESRF
Author(s): Julio C. da Silva; Jan Haubrich; Guillermo Requena; Maxime Hubert; Alexandra Pacureanu; Leonid Bloch; Yang Yang; Peter Cloetens
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Paper Abstract

In high-resolution tomography, one needs high-resolved projections in order to reconstruct a high-quality 3D map of a sample. X-ray ptychography is a robust technique which can provide such high-resolution 2D projections taking advantage of coherent X-rays. This technique was used in the far-field regime for a fair amount of time, but it can now also be implemented in the near-field regime. In both regimes, the technique enables not only high-resolution imaging, but also high sensitivity to the electron density of the sample. The combination with tomography makes 3D imaging possible via ptychographic X-ray computed tomography (PXCT), which can provide a 3D map of the complex-valued refractive index of the sample. The extension of PXCT to X-ray energies above 15 keV is challenging, but it can allow the imaging of object opaque to lower energy. We present here the implementation and developments of high-energy near- and far-field PXCT at the ESRF.

Paper Details

Date Published: 25 September 2017
PDF: 7 pages
Proc. SPIE 10391, Developments in X-Ray Tomography XI, 1039106 (25 September 2017); doi: 10.1117/12.2272971
Show Author Affiliations
Julio C. da Silva, ESRF - The European Synchrotron (France)
Jan Haubrich, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Guillermo Requena, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Maxime Hubert, ESRF - The European Synchrotron (France)
Alexandra Pacureanu, ESRF - The European Synchrotron (France)
Leonid Bloch, ESRF - The European Synchrotron (France)
Yang Yang, ESRF - The European Synchrotron (France)
Peter Cloetens, ESRF - The European Synchrotron (France)

Published in SPIE Proceedings Vol. 10391:
Developments in X-Ray Tomography XI
Bert Müller; Ge Wang, Editor(s)

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