By Thomas Kierspel, Joss Wiese, Terry Mullins, Joseph Robinson, Andy Aquila, Anton Barty, Richard Bean, Rebecca Boll, Sébastien Boutet, Philip Bucksbaum, Henry Chapman1, Lauge Christensen, Alan Fry, Mark S. Hunter2, Jason E Koglin, Mengning Liang, Valerio Mariani, Andrew Morgan, Adi Natan, Vladimir Petrovic, Daniel Rolles, Artem Rudenko, Kirsten Schnorr, Henrik Stapelfeldt, Stephan Stern, Jan Thøgersen, Chun Hong Yoon, Fenglin Wang, Sebastian Trippel, Jochen Küpper
1. Center for Free-Electron Laser Science 2. SLAC National Accelerator Laboratory