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K: Fachverband Kurzzeitphysik
K 5: Laserstrahlwechselwirkung und Laseranwendungen
K 5.6: Vortrag
Dienstag, 26. Februar 2013, 15:15–15:30, HS 4
Modeling of finite systems irradiated by intense ultrashort hard X-ray pulses — •Zoltan Jurek1, Beata Ziaja1,2, and Robin Santra1,3 — 1Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, D-22607 Hamburg, Germany — 2Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland — 3Department of Physics, University of Hamburg, Jungiusstrasse 9, 20355 Hamburg, Germany
Large number of experiments have already been carried out at the existing hard X-Ray Free-Electron Laser facilities (LCLS, SACLA) during the recent years. Their great success generates even higher anticipation for the forthcoming X-ray sources (European XFEL).
Single molecule imaging and nanoplasma formation are the challenging projects with XFELs that investigate the interaction of finite, small objects, e.g. single molecules, atomic clusters with intense X-ray radiation. Accurate modelling of the time evolution of such irradiated systems is required in order to understand the current experiments and to inspire new directions of experimental investigation.
In this presentation we report on our theoretical molecular-dynamics tool able to follow non-equilibrium dynamics within finite systems irradiated by intense X-ray pulses. We introduce the relevant physical processes, present computational methods used, discuss their limitations and also the specific constraints on calculations imposed by experimental conditions. Finally, we conclude with a few simulation examples.