PROGRESS IN HIGH-T-C MAGNET DEVELOPMENT IN OXFORD

We describe the development of magnet coils constructed using high-tem perature superconducting tapes (2212 and 2223 BSCCO/Ag) from a variety of sources. The applications area for these coils are as high-field i nserts for superconducting magnets, at or near 4.2 K, and as a source of ampere - turns (at 77 K) for iron circuits. The latter application is illustrated with a coil built for a successful demonstration of att raction levitation using direct control of the magnet current to maint ain a fixed airgap. (C) 1998 Elsevier Science B.V. All rights reserved .