1. Department of Physics, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden
2. Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany
3. European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
4. Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany