Reconstruction of scalar and vectorial components in X-ray dark-field tomography

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Bayer F, Hu S, Maier A, Weber T, Anton G, Michel T, Riess C
Zeitschrift: Proceedings of the National Academy of Sciences of the United States of America
Jahr der Veröffentlichung: 2014
Band: 111
Seitenbereich: 12699-12704
ISSN: 0027-8424
eISSN: 1091-6490


Abstract


Grating-based X-ray dark-field imaging is a novel technique for obtaining image contrast for object structures at size scales below setup resolution. Such an approach appears particularly beneficial for medical imaging and nondestructive testing. It has already been shown that the dark-field signal depends on the direction of observation. However, up to now, algorithms for fully recovering the orientation dependence in a tomographic volume are still unexplored. In this publication, we propose a reconstruction method for grating-based X-ray dark-field tomography, which models the orientation- dependent signal as an additional observable from a standard tomographic scan. In detail, we extend the tomographic volume to a tensorial set of voxel data, containing the local orientation and contributions to dark-field scattering. In our experiments, we present the first results of several test specimens exhibiting a heterogeneous composition in microstructure, which demonstrates the diagnostic potential of the method.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Anton, Gisela Prof. Dr.
Bayer, Florian
Lehrstuhl für Experimentalphysik (Teilchen- und Astroteilchenphysik)
Lehrstuhl für Experimentalphysik (Teilchen- und Astroteilchenphysik)
Hu, Shiyang
Erlangen Graduate School in Advanced Optical Technologies
Maier, Andreas Prof. Dr.-Ing.
Lehrstuhl für Informatik 5 (Mustererkennung)
Michel, Thilo PD Dr.
Lehrstuhl für Experimentalphysik (Teilchen- und Astroteilchenphysik)
Weber, Thomas
Lehrstuhl für Experimentalphysik (Teilchen- und Astroteilchenphysik)


Zitierweisen

APA:
Bayer, F., Hu, S., Maier, A., Weber, T., Anton, G., Michel, T., & Riess, C. (2014). Reconstruction of scalar and vectorial components in X-ray dark-field tomography. Proceedings of the National Academy of Sciences of the United States of America, 111, 12699-12704. https://dx.doi.org/10.1073/pnas.1321080111

MLA:
Bayer, Florian, et al. "Reconstruction of scalar and vectorial components in X-ray dark-field tomography." Proceedings of the National Academy of Sciences of the United States of America 111 (2014): 12699-12704.

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