SUPERCONDUCTING FAST-CYCLING DIPOLE MAGNETS FOR THE GSI FUTURE ACCELERATOR FACILITY

The results of design and tests of 2T superconducting model dipoles, operating at 1Hz, are presented. The magnets use a SC coil made from hollow superconducting cable, cooled with forced flow two-phase helium, and utilise a two section window frame iron yoke at different temperatures: one section at 4.5 K, the other at 80 K. Measurements of magnet training, AC losses, and magnetic fields are presented. Some beam pipe design problems as well as radiation effects are also discussed.