1. Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY Notkestrasse 85 22607 Hamburg Germany
2. Rijksuniversiteit Groningen Biomolecular Sciences and Biotechnology InstituteUniversity of Groningen Groningen Netherlands
3. Department of SciencesUniversity College GroningenUniversity of Groningen Groningen Netherlands
4. Department of PhysicsUniversität Hamburg Luruper Chaussee 149 22761 Hamburg Germany
5. Center for Ultrafast ImagingUniversität Hamburg Luruper Chaussee 149 22761 Hamburg Germany