1. Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
2. École polytechnique fédérale de Lausanne (EPFL), Rte Cantonale, 1015 Lausanne, Switzerland
3. Institute of Applied Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
4. Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla 34956 Istanbul, Turkey
5. Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
6. European XFEL GmbH, 22869 Schenefeld, Germany