First successful cable test at 20 Tesla demonstrates feasibility for high-field magnets

The first test ever of a high-temperature superconducting cable at a magnetic field of 20 T at 4.2 K demonstrates the possibilities of our cable for high-field magnets. The flexible cable was wound into a loop with a 12 cm diameter and inserted in the 20 T Bitter magnet at the National High Magnetic Field Laboratory in Tallahassee, Florida. The cable withstood a Lorenz Force of about 10 kN at currents up to 1100 A while at 20 T.

20 T cable — YBCO coated conductor cable for 20 T test.

20 T data — Critical current at 76 K and 4.2 K in field up to 20 T.

Details of the experiment will be presented at the 22^nd International Conference on Magnet Technology conference and the Superconductivity Centennial Conference.

This work was performed in collaboration with the National High Magnetic Field Laboratory and the National Institute of Standards and Technology.