6 papers
Fast Ptychographic Near-Field Computed Tomography
Sami Wirtensohn, Silja Flenner, Imke Greving +13
Near-field X-ray ptychography enables quantitative three-dimensional imaging with nanometer-scale resolution, but its broader application is limited by long acquisition times - oft…
Free-form diamond refractive optics enable efficient high-energy X-ray nano-imaging
Aknur Karabay, Xianbo Shi, Frank Seiboth +4
Full-field transmission X-ray microscopy (TXM) enables nondestructive three-dimensional imaging of thick and strongly absorbing materials with high spatial resolution. Such capabil…
Diamond compound refractive lenses for high energy Dark Field X-ray Microscopy
Steffen Staeck, Can Yildirim, Frank Seiboth +4
Compound-refractive lenses (CRL) are a type of x-ray optics that find widespread applications as focusing and imaging lenses. The choice of material is one of the most defining pro…
X-ray Microscopy and Talbot Imaging with the Matter in Extreme Conditions X-ray Imager at LCLS
Eric Galtier, Hae Ja Lee, Dimitri Khaghani +25
The last decade has shown the great potential that X-ray Free Electron Lasers (FEL) have to study High Energy Density (HED) physics. Experiments at FELs have made significant break…
X-ray induced grain boundary formation and grain rotation in Bi2Se3
Kento Katagiri, Bernard Kozioziemski, Eric Folsom +24
Optimizing grain boundary characteristics in polycrystalline materials can improve their properties. Many processing methods have been developed for grain boundary manipulation, in…
Design, fabrication, and testing of diamond axicons for X-ray microscopy applications
Nazanin Samadi, Frank Seiboth, Carlos Sato Baraldi Dias +3
This work presents the design, fabrication, and experimental validation of a refractive diamond axicon for X-ray beam shaping. The diamond axicon was developed to overcome the limi…