Polycrystal orientation mapping techniques based on full-field acquisition schemes like X-ray Diffraction Contrast Tomography and certain other variants of 3D X-ray Diffraction or near-field High Energy Diffraction Microscopy enable time efficient mapping of 3D grain microstructures. The spatial resolution obtained with this class of monochromatic beam X-ray diffraction imaging approaches remains typically below the ultimate spatial resolution achievable with X-ray imaging detectors. Introducing a generalised reconstruction framework enabling the combination of acquisitions with different detector pixel size and sample tilt settings provide a pathway towards 3D orientation mapping with a spatial resolution approaching the one of state of the art X-ray imaging detector systems.

Polycrystal orientation mapping, Topotomography, X-ray diffraction contrast tomography, X-ray diffraction imaging, X-ray orientation microscopy
doi.org/10.1016/j.cossms.2020.100832
Current Opinion in Solid State and Materials Science
Centrum Wiskunde & Informatica, Amsterdam, The Netherlands

ViganĂ², N.R, & Ludwig, W. (2020). X-ray orientation microscopy using topo-tomography and multi-mode diffraction contrast tomography. Current Opinion in Solid State and Materials Science, 24(4). doi:10.1016/j.cossms.2020.100832