Technical Report: First Beam Tests of a Superconductive Undulator in a Storage Ring at ANKA

In 2005 a test superconductive undulator was installed in the ANKA storage ring. Since then the undulator has been constantly in operation as the first cold-bore, small-gap superconducting undulator ever installed in a storage ring. The aim of this experiment was to demonstrate that such a device can be operated under normal user conditions. Compared with permanent magnet undulators, superconducting undulators have a higher magnetic field strength (for a given period length and a given gap width) and can be tuned electrically. The higher field strength allows the production of photon beams with higher brilliance and higher photon energy.