Cryostat design and fabrication for the NHMFL/NSCL sweeper magnet

The National High Magnetic Field Laboratory in Tallahassee, Florida and the National Superconducting Cyclotron Laboratory in East Lansing, Michigan have been collaborating on the design and construction of a large-gap, compact superconducting sweeper magnet for nuclear physics experiments. The magnet consists of two NbTi D-shaped coils and 20 tons of magnet iron in a "C" configuration. The coils were successfully bucket tested in their support structures during the summer of 2002. The design of the cryostat was completed in late 2002 and construction is nearly completed. System testing is expected to occur late in 2003.