Author: Sanchez, L.
Paper Title Page
THPB089 Magnetic Characterization of the Phase Shifter Prototypes Built by CIEMAT for E-XFEL 1029
  • I. Moya, J. Calero, J.M. Cela-Ruiz, L. García-Tabarés, A. Guirao, J.L. Gutiérrez, L.M. Martinez, T. Martínez de Alvaro, E. Molina Marinas, L. Sanchez, S. Sanz, F. Toral, C. Vázquez, J.G.S. de la Gama
    CIEMAT, Madrid, Spain
  • J. Campmany, J. Marcos, V. Massana
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  Funding: Work partially supported by Spanish Ministry of Science and Innovation under SEI Resolution on 17-September-2009 and project ref. AIC-2010-A-000524
The European X-ray Free Electron Laser (E-XFEL) will be based on a 10 to 17.5 GeV electron linac that will be used in the undulator system to obtain ultra-brilliant X-ray flashes from 0.1 to 6 nanometres for experimentation. The undulator system is formed by undulators and intersections between them, where a quadrupole on top of a precision mover, a beam position monitor, two air coils and a phase shifter are allocated. The function of the phase shifter is to adjust the phase of the electron beam and the radiation when they enter in an undulator according to the different beam energies and wavelengths. CIEMAT is working on the development of the phase shifters, as part of the Spanish in-kind contribution to the E-XFEL project. Several problems reported elsewhere were detected in the first prototype, which did not fulfil the first field integral specification. This paper describes the magnetic measurements realized on the second and third prototypes in the test bench at CELLS, together with the tuning process to decrease the field integral dependence with gap.