Author: Rossmanith, R.
Paper Title Page
WEP076 A Superconducting Undulator With Variable Polarization Direction for the European FEL 499
  • Y. Li
    EuXFEL, Hamburg, Germany
  • R. Rossmanith
    DESY, Hamburg, Germany
  In the SASE3 beam line at the European XFEL a planar undulator produces linearly polarized radiation. In order to obtain a circularly polarized radiation an afterburner will be installed to produce coherent radiation with variable polarization. Recently Argonne National Lab developed a super conductive undulator (called SCAPE) for a storage ring which allows to change polarization direction and field strength without moving mechanically the undulator parts. In this paper it is investigated if a similar device could be useful for an FEL. Such device is also a possible choice for the future undulator beam lines where circular and variable polarization are required.  
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About • paper received ※ 19 August 2019       paper accepted ※ 17 September 2019       issue date ※ 05 November 2019  
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