National Synchrotron Light Source Seminar
"Latest experiments with GINI-X at PETRA III: tomo, timing, techniques"
Presented by Markus Osterhoff, Georg-August-Universitat Gottingen, Germany
Thursday, August 22, 2013, 3 pm
Seminar Room, Bldg. 725
Hosted by: Sebastian Kalbfleisch
The Göttingen Instrument for Nano-Imaging with X-Rays (GINI-X) is a dedicated set-up at the coherence beamline P10 of PETRA III. The set-up is optimised for propagation imaging with waveguide filtering, but due to its flexible nature also used extensively for tomography, high-resolution diffraction and coherent diffraction experiments with cryo option. Latest results from recent experiments are shown, including sub-5 nm focusing with a multilayer zone plate. For asthma research, macrophages in mice's lungs are investigated; for novel cochlea implants, the inner-ears of mice are image three-dimensionally. Fabrication of X-ray waveguides for coherence filtering and beam shaping is pushed to single-mode channels. Pump-probe experiments have been put forward with a novel photon counting quadrant diode that can resolve individual synchrotron bunches. Lipid multilayers as a model system for cell membranes are investigated, with surface acoustic waves (SAWs) as pump-mechanism. Experiments are prepared using partially coherent simulations.