The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - UNPB AU - La Civita, D. AU - Sinn, H. ED - Schaa, Volker RW ED - Tavakoli, Keihan ED - Tilmont, Manuel TI - European XFEL SASE3 Photon Beam Commissioning and Lesson Learned J2 - Proc. of MEDSI2018, Paris, France, 25-29 June 2018 C1 - Paris, France T2 - Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation T3 - 10 LA - english AB - European XFEL, the Free-Electron-Laser facility in Hamburg (Germany), started user operation in September 2017. The novel facility produces at MHz repetition rate, coherent, 1mJ energy, femto-second pulses in a wide photon energy range. The facility comprises of a linear accelerator and three beamlines: SASE1 works in the hard X-ray regime and it is presently in user operation; SASE3 is the soft X-ray beamline and it is in advanced commissioning with beam and ready to receive users at the end of 2018; SASE2 is the second hard X-ray beamline that saw FEL light in early May 2018 and it is now in beam commissioning phase. The length of the beamlines together with the high energy and high repetition rate pulses place interesting and new engineering design challenges. The experience gained during the commissioning allows confirmations, revisions and upgrade of the present design of devices. This contribution reports about the commissioning of the SASE3 beamline and reviews part of the beamline device performance. Focus is given on the grating monochromator commissioning with beam and also on the mechanical performance verified during the device technical commissioning. PB - JACoW Publishing CP - Geneva, Switzerland ER -