MIT 12 tesla test coil experiment

A 1 m diameter test coil consisting of three 39 m lengths of Internally Cooled Cabled Superconductor (ICCS), wound in the form of three double pancakes, has been installed in the 9 T background field High Field Test Facility (HFTF) at the Lawrence Livermore National Laboratory (LLNL). The ICCS conductor is a 486 strand bronze matrix Nb3Sn cable, encapsulated in a squared-off JBK-75 tube with a 32% helium space. The paper describes major test coil characteristics, method of fabrication and test objectives. Tests will be performed during September-October 1984.