Dual axis Dark Field Contrast Tomography for visualisation of scattering directions in a CFRP sample

TitleDual axis Dark Field Contrast Tomography for visualisation of scattering directions in a CFRP sample
Publication TypeConference Abstract
Year of Publication2017
AuthorsE. Janssens, J. De Beenhouwer, J. Sanctorum, S. Senck, C. Heinzl, and J. Sijbers
Conference Name4th Conference on X-ray and Neutron Phase Imaging with Gratings
Pagination79-80
Date Published09/2017
Place PublishedZürich, Switzerland
KeywordsDark field tomography, Dual axis, Phase contrast, Tomography, X-rays
Abstract

In Carbon Fiber Reinforced Polymer (CFRP), the carbon fibers embedded into the polymer matrix cause scattering when inspected with X-rays. This scattering is captured within the dark field image when the sample is scanned with a grating based interferometer. The main disadvantage is, however, that only directional scattering information can be achieved due to the orientation of the gratings. By scanning the sample twice, with a 90 degrees rotation of the sample in between, information from two different scattering directions can be combined into one 3D reconstruction volume. In this abstract, such an approach is shown to improve the representation of scattering inside the sample.

URLhttps://indico.psi.ch/getFile.py/access?resId=1&materialId=2&confId=5055
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