6 papers
Real-time imaging of acoustic waves in bulk materials with X-ray microscopy
Theodor S. Holstad, Leora E. Dresselhaus-Marais, Trygve Magnus Ræder +10
Materials modelling and processing require experiments to visualize and quantify how external excitations drive the evolution of deep subsurface structure and defects that determin…
X-ray Free Electron Laser based Dark-Field X-ray Microscopy
Theodor Secanell Holstad, Trygve Magnus Raeder, Mads Allerup Carlsen +6
Dark-field X-ray microscopy (DFXM) is a nondestructive full-field imaging technique providing three dimensional mapping of microstructure and local strain fields in deeply embedded…
Non-destructive determination of phase, size, and strain of individual grains in polycrystalline photovoltaic materials
Mariana Mar Lucas, Tiago Ramos, Peter S. Jørgensen +5
We demonstrate a non-destructive approach to provide structural properties on the grain level for the absorber layer of kesterite solar cells. Kesterite solar cells are notoriously…
X-ray coherent diffraction imaging with an objective lens: towards 3D mapping of thick polycrystals
Anders Filsøe Pedersen, Virginie Chamard, Carsten Detlefs +3
We report on a new x-ray imaging method, which combines the high spatial resolution of coherent diffraction imaging with the ability of dark field microscopy to map grains within t…
Imbibition in plant seeds
Jean-François Louf, Yi Zheng, Aradhana Kumar +5
We describe imbibition in real and artificial plant seeds, using a combination of experiments and theory. In both systems, our experiments demonstrate that liquid permeates the sub…
Oxygen Ordering Superstructures and Structural Phase Diagram of YBa_2Cu_3O_{6+x} Studied by Hard X-ray Diffraction
M. v. Zimmermann, T. Frello, N. H. Andersen +10
High energy x-ray diffraction is used to investigate the bulk oxygen ordering properties of YBa_2Cu_3O_{6+x}. Superstructures of Cu-O chains aligned along the b axis and ordered wi…