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

Publication Type:

Conference Abstract


4th Conference on X-ray and Neutron Phase Imaging with Gratings, Zürich, Switzerland, p.79-80 (2017)




Dark field tomography, Dual axis, Phase contrast, Tomography, X-rays


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.

Research area: