Author: Zhang, M.
Paper Title Page
WEPWA036 The Magnetic Performance of a Double Elliptically Polarized Undulator 2208
 
  • Q.G. Zhou, H.F. Wang, M. Zhang, W. Zhang
    SINAP, Shanghai, People's Republic of China
 
  A pair of elliptically polarized undulators with APPLE-II type which will be used in a soft X-ray beam line for ARPES and PEEM at SSRF has been built and installed in the storage ring. The undulators can cover the energy range from 20eV to 2000eV of arbitrary polarized light including the horizontal, vertical, elliptical and circular polarization. The quasi-periodic design of the low energy undulator minimizes the contributions of the higher harmonics to be less than 20%. The magnet design and the measured magnetic field performance will be presented in this paper.