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Hannover 2010 – scientific programme

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A: Fachverband Atomphysik

A 28: Attosecond Physics II / Interaction with Strong or Short Laser Pulses III

A 28.6: Talk

Friday, March 12, 2010, 15:15–15:30, F 107

Studying dynamics of Xenon clusters in ultra high intense femtosecond Xray laser pulses via single shot single cluster imaging at LCLS and FLASH — •D. Rupp1, M. Adolph1, T. Gorkhover1, S. Schorb1, T. Möller1, D. Rolles3, A. Rudenko3, S. Epp3, R. Hartmann3,4, L. Strüder3,4, I. Schlichting3,5, J. Ullrich3,6, and C. Bostedt21TU Berlin — 2LCLS — 3ASG — 4MP HLL — 5MPI MF — 6MPI K

With the recent rapid development of Free Electron Lasers (FELs) in the high energy photon range, unique novel experiments as imaging of single nanoscale objects down to atomic resolution come into reach. Due to the severe energy deposition in the imaged particles ultrafast electron and ion dynamics are initiated and the understanding of these processes is crucial for the success of such experiments. In a first experiment at FLASH at 90eV photon energy it has been shown that imaging of single Xenon clusters with ultrashort FEL pulses is possible and a promising method to study these dynamics on a femtosecond time scale. We now present latest results from the very first imaging experiments at LCLS. Xenon clusters were irradiated by pulses with photon energies up to 2 keV at varied pulse lengths from 400 down to 4 femtoseconds. The experiment was performed in the CFEL-ASG Multi-Purpose (CAMP) End Station, which provides a combined imaging and spectroscopic approach with new developed large area pnCCDs for scattered and fluorescence light complemented by electron and ion VMI-spectrometers.

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