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DPG

Rostock 2019 – scientific programme

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A: Fachverband Atomphysik

A 34: Interaction with VUV and X-ray light

A 34.8: Poster

Thursday, March 14, 2019, 16:15–18:15, S Fobau Physik

XUV Pump-Probe Capabilities of the Reaction Microscope Endstation at FLASH2 — •Hannes Lindenblatt1, Kirsten Schnorr1, Sven Augustin1, Georg Schmid1, Severin Meister1, Florian Trost1, Yifan Liu1, Patrizia Schoch1, Markus Braune2, Marion Kuhlmann2, Rolf Treusch2, Claus-Dieter Schröter1, Thomas Pfeifer1, and Robert Moshammer11Max-Planck-Institut für Kernphysik, Heidelberg — 2DESY, Hamburg

Our group operates a Reaction Microscope as permanent endstation at FLASH2. During the last year, first experiments and several upgrades were performed. Most notably, an XUV split, delay and focusing unit was implemented with gracing incidence mirrors. The installed optics provide a very small focus (∼ 5 um) and large delay range (± 2 ps). However, the beam geometry requires to overlap the two focii under an angle proportional to the time delay. Thus, scanning the delay and maintaining spatial overlap becomes complex. In this poster, procedures to handle this will be presented. Furthermore, coincident data of Coulomb-explosion processes is shown demonstrating pump-probe capability over the full delay range.

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