Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 21: Posters 4: Novelties in Molecular Physics
MO 21.21: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
Optimized focusing injector for single-particle coherent diffractive x-ray imaging — •Nils Roth1,2, Daniel Horke1, and Jochen Küpper1,2,3 — 1Center for Free-Electron Laser Science, DESY — 2Department of Physics, University of Hamburg — 3Center for Ultrafast Imaging, University of Hamburg
Single-particle coherent diffractive imaging requires reproducible particles to build up a 3D molecular image [1]. Current experiments are limited by the inefficient delivery of particles and correspondingly low hit-rates, i.e., poor usage of sample and x-ray photons. We are developing a controllable and efficient vaporization and aerodynamic lens [2] system to provide tightly focused beams of nanoparticles and biological systems, which will efficiently be guided to the interaction point. Here, we present detailed numerical simulations, as well as experimental characterization, of such an aerodynamic lens system. In the future this will be combined with optical manipulation and guiding [3]. The increased hit-rate achieved in such a setup will make "molecular-movie" experiments possible.
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