1. Physics Department and Center for Free-Electron Laser Science, Universität Hamburg, 22607 Hamburg, Germany
2. Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14-km 163.5, 34149 Trieste, Italy
3. SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
4. Institute for Methods and Instrumentation in Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Wilhelm-Conrad-Röntgen Campus, Albert-Einstein-Str. 15, 12489 Berlin, Germany
5. LCLS, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
6. Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
7. Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
8. Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
9. European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany
10. SSRL, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
11. Fritz-Haber Institute, Max Planck Society, Faradayweg 4-6, D-14195 Berlin, Germany