Volume 105, Number 3, February 2014
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||25 February 2014|
X-ray tensor tomography
1 Lehrstuhl für Biomedizinische Physik, Physik- Department and Institut für Medizintechnik, Technische Universität München - 85748 Garching, Germany
2 Chair for Computer Aided Medical Procedures (CAMP), Technische Universität München 85748 Garching, Germany
3 Karlsruhe Institute of Technology, Institute for Applied Materials - WK, Engelbert-Arnold Straβe 4, 76128 Karlsruhe, Germany
Received: 12 November 2013
Accepted: 29 January 2014
Here we introduce a new concept for x-ray computed tomography that yields information about the local micro-morphology and its orientation in each voxel of the reconstructed 3D tomogram. Contrary to conventional x-ray CT, which only reconstructs a single scalar value for each point in the 3D image, our approach provides a full scattering tensor with multiple independent structural parameters in each volume element. In the application example shown in this study, we highlight that our method can visualize sub-pixel fiber orientations in a carbon composite sample, hence demonstrating its value for non-destructive testing applications. Moreover, as the method is based on the use of a conventional x-ray tube, we believe that it will also have a great impact in the wider range of material science investigations and in future medical diagnostics.
PACS: 87.59.-e – X-ray imaging / 81.70.Tx – Computed tomography / 87.57.Va – Neutron imaging; neutron tomography
© EPLA, 2014
Initial download of the metrics may take a while.