Author: Keller, A.
Paper Title Page
THPD64 SwissFEL U15 Prototype Design and First Results 666
 
  • T. Schmidt, M. Brügger, C. Calvi, H. Jöhri, A. Keller, T. Stapf
    PSI, Villigen PSI, Switzerland
 
  The SwissFEL will have in the base line two undulator lines for the hard- and soft x-ray: U15 in-vacuum and U40 / UE40 APPLE II type undulators with 12 and 15 modules of 4m length each. All undulators are equipped with the same frame and gap drive system to profit best from the series production. The frame is built up from two identical bases and two sides made of cast mineral. In this design, the frame transfers its stiffness to the I-beam through a backlash-free wedge based gap drive system. The interfaces to the inner I-beam for the in-vacuum undulator have been rearranged and reduced significantly. Magnets and poles are carried by an extruded Aluminum block-keeper, which allows an automated tuning of the magnet structure. The prototype of the support structure has been built up during spring 2012 and measuring results will be presented. The full prototype shall be ready for the end of 2012.