• A. Bernhard, T. Baumbach, F. Burkart, S. Ehlers, G. Fuchert, P. Peiffer, M. Wolf, D. Wollmann
  KIT, Karlsruhe
• B. Kostka
  University of Erlangen-Nürnberg, Physikalisches Institut II, Erlangen
• R. Rossmanith
  FZK, Karlsruhe

The ANKA superconductive undulator (SCU14) is continously operated since 2005. The main objetive of this operation was to investigate the interactions between the undulator and the stored electron beam and to characterise the undulator radiation. The characterisation of the undulator radiation was done with a short test beamline designed for spacially and spectrally resolved measurements of the undulator radiation intensity. This contribution summarises the results of these measurements. The spectra are cross-correlated with the magnetic field measurements carried out earlier.

• S. Ehlers, T. Baumbach, G. Fuchert, P. Peiffer, D. Wollmann
  KIT, Karlsruhe
• A. Bernhard, R. Rossmanith
  FZK, Karlsruhe
• D. Schoerling
  IMFD, Freiberg

The next step towards introducing superconductive undulators as the new generation of insertion devices is to understand the impact of dynamic effects in the superconducting coils on the accelerator beam. These effects are seen as a temporal drift of the beam orbit, originating from transients of the magnetic field. The first systematic time resolved measurements of such drifts have been performed ANKA. Orbit displacement during several different ramping cycles, for different ramp rates and relaxation times, has been investigated. This contribution summarises the results of the measurements. The persistent current effects in the superconducting wires, as well as eddy currents in the yoke are discussed as possible sources for the transients.