*Konstantin Kruchinin1, Alexander Molodozhentsev1, Dariusz Kocon1, Joshua Hawke1, Maninder Kaur1, Andreas Maier2, Florian Gruner2, Georg Korn1
(1. ELI-Beamlines, Institute of Physics of the Czech Academy of Science, 2. Center for Free-Electron Laser Science and Department of Physics, University of Hamburg)