In this paper we present a grating interferometer setup with a liquid-metal-jet source and a high resolution detector. It will be shown that this source is suitable for interferometer setups as it delivers a sufficient spatial coherence that makes a source grating unnecessary. This is confirmed twice by the results of an interferometer setup and a single grating setup, respectively. Both show comparable information on the samples. Furthermore, it was possible to measure the Talbot effect due to the self-built high resolution detector with an effective pixel size of 0.67 µm and due to the coherence of the source, thanks to a small spot size of a few microns. The information on the absorption of a nylon fiber is observed to include inline phase contrast effects. The dark-field signal of a carbon fiber reinforced polymer (CFRP) is not quite well understood because of its inhomogeneity.
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28 January 2016
XRM 2014: Proceedings of the 12th International Conference on X-Ray Microscopy
26–31 October 2014
Melbourne, Australia
Research Article|
January 28 2016
X-ray grating interferometry for 9.25 keV design energy at a liquid-metal-jet source
A. Balles;
A. Balles
*Chair for X-ray Microscopy,
Julius-Maximilians-Universität Würzburg
, Josef-Martin-Weg 63, Würzburg, Germany
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Ch. Fella;
Ch. Fella
*Chair for X-ray Microscopy,
Julius-Maximilians-Universität Würzburg
, Josef-Martin-Weg 63, Würzburg, Germany
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J. Dittmann;
J. Dittmann
*Chair for X-ray Microscopy,
Julius-Maximilians-Universität Würzburg
, Josef-Martin-Weg 63, Würzburg, Germany
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W. Wiest;
W. Wiest
*Chair for X-ray Microscopy,
Julius-Maximilians-Universität Würzburg
, Josef-Martin-Weg 63, Würzburg, Germany
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S. Zabler;
S. Zabler
*Chair for X-ray Microscopy,
Julius-Maximilians-Universität Würzburg
, Josef-Martin-Weg 63, Würzburg, Germany
†
Fraunhofer Development Center X-Ray Technology (EZRT)
, Flugplatzstr. 75, 90768 Fürth, Germany
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R. Hanke
R. Hanke
*Chair for X-ray Microscopy,
Julius-Maximilians-Universität Würzburg
, Josef-Martin-Weg 63, Würzburg, Germany
†
Fraunhofer Development Center X-Ray Technology (EZRT)
, Flugplatzstr. 75, 90768 Fürth, Germany
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AIP Conf. Proc. 1696, 020043 (2016)
Citation
A. Balles, Ch. Fella, J. Dittmann, W. Wiest, S. Zabler, R. Hanke; X-ray grating interferometry for 9.25 keV design energy at a liquid-metal-jet source. AIP Conf. Proc. 28 January 2016; 1696 (1): 020043. https://doi.org/10.1063/1.4937537
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