Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
2017-07-26 | journal article; research paper. A publication with affiliation to the University of Göttingen.
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Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
Ruhlandt, A. ; Töpperwien, M. ; Krenkel, M.; Mokso, R. & Salditt, T. (2017)
Scientific Reports, 7(1) art. 6487. DOI: https://doi.org/10.1038/s41598-017-06333-6
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Details
- Authors
- Ruhlandt, A. ; Töpperwien, M. ; Krenkel, M.; Mokso, R.; Salditt, T.
- Abstract
- We present an approach towards four dimensional (4d) movies of materials, showing dynamic processes within the entire 3d structure. The method is based on tomographic reconstruction on dynamically curved paths using a motion model estimated by optical flow techniques, considerably reducing the typical motion artefacts of dynamic tomography. At the same time we exploit x-ray phase contrast based on free propagation to enhance the signal from micron scale structure recorded with illumination times down to a millisecond (ms). The concept is demonstrated by observing the burning process of a match stick in 4d, using high speed synchrotron phase contrast x-ray tomography recordings. The resulting movies reveal the structural changes of the wood cells during the combustion.
- Issue Date
- 26-July-2017
- Journal
- Scientific Reports
- Organization
- Fakultät für Physik ; Institut für Röntgenphysik
- Working Group
- RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)
- ISSN
- 2045-2322
- Language
- English
- Subject(s)
- x-ray imaging