Modeling of the performance of Nn₃Sn CICCs for high field magnet design

Accurate prediction of the performance of Nb₃Sn cable-in-conduit-conductors (CICCs) is challenging but critical for the design of high field magnets such as the series connected hybrid (SCH) magnet currently under development at the NHMFL. With various CICC tests performed for EFDA dipole magnet and ITER, we present the Florida electro-mechanical cable model (FEMCAM) and demonstrate that it is a self-consistent model incorporating important effects caused by differential thermal contraction and filament fracture to better predict CICC performance.