Dual axis Dark Field Contrast Tomography for visualisation of scattering directions in a CFRP sample
E. Janssens, J. De Beenhouwer, J. Sanctorum, S. Senck, C. Heinzl, J. Sijbers - Dual axis Dark Field Contrast Tomography for visualisation of scattering directions in a CFRP sample - 4th conference on X-ray and neutron phase imaging with gratings (XNPIG2017), Zurich Switzerland, Switzerland, 2017, pp. 1-2
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 …