Status of the development of superconducting undulators at ANKA

In order to produce high-brilliance hard X-ray photon beams, permanent magnet short-period undulators are applied in many synchrotron facilities worldwide. Superconducting undulators (SCUs) have the potential to further increase the spectral range and brilliance. At the ANKA (˚ANgstrom source KArlsruhe) synchrotron radiation facility, we thus pursue an SCUfocused research and development program in a collaboration between the Karlsruhe Institute of Technology (KIT) and Babcock Noell GmbH (BNG), the status of which is reported in this contribution. The effort to develop instruments and tools for quality assessment of the magnetic field of SCUs and to enhance the understanding of beam heat load mechanisms in a cold bore is also described.