TY - JOUR
T1 - Six-dimensional real and reciprocal space small-angle X-ray scattering tomography
AU - Schaff, Florian
AU - Bech, Martin
AU - Zaslansky, Paul
AU - Jud, Christoph
AU - Liebi, Marianne
AU - Guizar-Sicairos, Manuel
AU - Pfeiffer, Franz
N1 - Publisher Copyright:
© 2015 Macmillan Publishers Limited. All rights reserved.
PY - 2015/11/19
Y1 - 2015/11/19
N2 - When used in combination with raster scanning, small-angle X-ray scattering (SAXS) has proven to be a valuable imaging technique of the nanoscale, for example of bone, teeth and brain matter. Although two-dimensional projection imaging has been used to characterize various materials successfully, its three-dimensional extension, SAXS computed tomography, poses substantial challenges, which have yet to be overcome. Previous work using SAXS computed tomography was unable to preserve oriented SAXS signals during reconstruction. Here we present a solution to this problem and obtain a complete SAXS computed tomography, which preserves oriented scattering information. By introducing virtual tomography axes, we take advantage of the two-dimensional SAXS information recorded on an area detector and use it to reconstruct the full three-dimensional scattering distribution in reciprocal space for each voxel of the three-dimensional object in real space. The presented method could be of interest for a combined six-dimensional real and reciprocal space characterization of mesoscopic materials with hierarchically structured features with length scales ranging from a few nanometres to a few millimetres - for example, biomaterials such as bone or teeth, or functional materials such as fuel-cell or battery components.
AB - When used in combination with raster scanning, small-angle X-ray scattering (SAXS) has proven to be a valuable imaging technique of the nanoscale, for example of bone, teeth and brain matter. Although two-dimensional projection imaging has been used to characterize various materials successfully, its three-dimensional extension, SAXS computed tomography, poses substantial challenges, which have yet to be overcome. Previous work using SAXS computed tomography was unable to preserve oriented SAXS signals during reconstruction. Here we present a solution to this problem and obtain a complete SAXS computed tomography, which preserves oriented scattering information. By introducing virtual tomography axes, we take advantage of the two-dimensional SAXS information recorded on an area detector and use it to reconstruct the full three-dimensional scattering distribution in reciprocal space for each voxel of the three-dimensional object in real space. The presented method could be of interest for a combined six-dimensional real and reciprocal space characterization of mesoscopic materials with hierarchically structured features with length scales ranging from a few nanometres to a few millimetres - for example, biomaterials such as bone or teeth, or functional materials such as fuel-cell or battery components.
UR - http://www.scopus.com/inward/record.url?scp=84947576531&partnerID=8YFLogxK
U2 - 10.1038/nature16060
DO - 10.1038/nature16060
M3 - Article
C2 - 26581292
AN - SCOPUS:84947576531
SN - 0028-0836
VL - 527
SP - 353
EP - 356
JO - Nature
JF - Nature
IS - 7578
ER -