Speaker
Dr
Oliver Bunk
(Paul Scherrer Institute, 5232 Villigen PSI, Switzerland)
Description
Scanning small-angle X-ray scattering (SAXS) images the density and orientation of nanostructures. As a 2D imaging technique it can be applied to spatially resolved investigations on square centimeters large samples, i.e., information on nanoscale structures is imaged over comparatively large areas. In computed tomography mode 3D investigations are feasible as well. For each voxel the full SAXS pattern can be reconstructed. Therefore a rich set of information can be retrieved and several image representations result from a single SAXS scan.
As an example scanning SAXS tomography data on rat brains are presented. We show the extraction of a scattering peak corresponding to myelin, the layered material that surrounds the axons of nerve cells. Demyelination is for example causing multiple sclerosis and we hope that scanning SAXS data can contribute to a deeper understanding of diseases.
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poster
Please specify the session
imaging
Primary author
Dr
Oliver Bunk
(Paul Scherrer Institute, 5232 Villigen PSI, Switzerland)
Co-authors
Mrs
Andreas Menzel
(Paul Scherrer Institute, 5232 Villigen PSI, Switzerland)
Dr
Audret Bouchet
(European Synchrotron Radiation Facility, 38043 Grenoble, France)
Dr
Franz Pfeiffer
(Department of Physics, Technische Universitaet Muenchen, 85748 Garching, Germany)
Dr
Geraldine Le Duc
(European Synchrotron Radiation Facility, 38043 Grenoble, France)
Ms
Maria Thomson
(Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark)
Dr
Martin Bech
(Department of Physics, Technische Universitaet Muenchen, 85748 Garching, Germany)
Prof.
Robert Feidenhans’l
(Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark)
Dr
Torben H. Jensen
(Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark)
