Over almost a decade, the ‘Little Big Coil (LBC)’ program at the Applied Superconductivity Center (ASC) of the National High Magnetic Field Laboratory (NHMFL) has focused on investigating the various limitations of rare-earth barium copper oxide coated conductors (REBCO CCs) in high-field (>40 T) and high-stress (>800 MPa) environments. Under the key philosophy of “no magnets are better than...
A large range of HTS cable and magnet design for high field accelerators is currently being studied and modelled, while the validation of models by experimental results is still rather limited. At the SM18 magnet test facility at CERN various types of HTS magnets have been tested, including insulated, metal insulated and non-insulated coils, with a range of instrumentation including high...
The decreasing cost and expanding production of REBCO tapes make them promising candidates for accelerator magnets operating at high current density and high magnetic field. Within the CHART program supporting accelerator-magnet development, we perform electromagnetic and thermal analyses of the first REBCO subscale (RS1) magnet developed in the MagDev Lab at PSI, designed to enable direct...
During operation, the Cable in Conduit Conductors (CICC) of the ITER Toroidal Field (TF) coils are exposed to severe electromagnetic forces [1]. These forces are in part hoop load and in part crushing load on the strands pressed by the Lorentz-force against the inner wall of the jacket. In addition, the differential thermal contraction between the steel jacket and the superconducting strands...
