1. Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025
2. Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025
3. Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025
4. MAX IV Laboratory, Lund University, Lund 224 84, Sweden
5. Institute for Laser Science, The University of Electro-Communications, Chofu,Tokyo 182-8585, Japan
6. Linac & FEL Division, SLAC National Accelerator Laboratory, Menlo Park, CA 94025
7. Accelerator Research Division, SLAC National Accelerator Laboratory, Menlo Park, CA 94025
8. Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany
9. RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
10. Japan Synchrotron Radiation Research Institute, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
11. Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005
12. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
13. Department of Physics, Universität Hamburg, Hamburg 20355, Germany
14. Department of Physics, University of Wisconsin–Madison, Madison, WI 53706