DEVELOPMENT OF SUPERCONDUCTING UNDULATORS FOR ADVANCED SYNCHROTRON LIGHT SOURCES

Superconducting undulators are being developed for their potential to produce either higher photon energy beams at given electron energy facilities or to save accelerator cost by using lower electron energy for given photon energy beams as compared to permanent-magnet undulators. They are expected to play an important role in upgrade projects of third generation sources and are believed to be a key component of fourth generation sources that may be based on Free Electron Lasers (FEL) and Energy Recovery Linacs (ERL). A review is made on the development of superconducting undulators, including some details of the development of superconducting miniundulators and the LIULI program at SSLS.