Calculation of the dynamic aperture in the ANKA storage ring with a   high-field wavelength shifter
  Third order tracking calculations show that a wavelength shifter on the basis of a commercially available 12 T split-pair solenoid is compatible with the ANKA storage ring 
U. Bandow, D. Einfeld, T. Hezel, H.O. Moser, R. Rossmanith, J. Schaper