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TY - UNPB AU - Sabbi, G.L. ED - Conradie, Lowry ED - De Villiers, John Garrett ED - Schaa, Volker RW TI - Future of High Field Superconducting Magnets J2 - Proc. of Cyclotrons2019, Cape Town, South Africa, 23-27 September 2019 CY - Cape Town, South Africa T2 - International Conference on Cyclotrons and their Applications T3 - 22 LA - english AB - Excellent mechanical and electrical properties make Niobium-Titanium (NbTi) the preferred conductor for accelerator magnets with operating fields up to 8 T. In order to surpass this threshold, materials with higher critical field are required. Among these, Niobium-Tin (Nb₃Sn) is in the most advanced state of development. Nb₃Sn wires carry sufficient current densities to sustain coil windings operating in the 15 T range, and can be produced in multi-km lengths with uniform properties. Following extensive R&D programs, Nb₃Sn technology is enabling a 10-fold increase of the LHC luminosity, opening the way to its application in future higher energy colliders. The use of High Temperature Superconductors such as YBCO and Bi-2212 is also being actively explored to surpass the intrinsic limits of Nb₃Sn. While these materials can in principle support operating fields well above 20 T, many technological challenges need to be addressed to exploit their fundamental properties in practical magnet designs. The most significant achievements to date, remaining issues and future directions are discussed. PB - JACoW Publishing CP - Geneva, Switzerland ER -