The 16 T Dipole Development Program for FCC and HE-LHC

Schoerling, D.; Arbelaez, D.; Auchmann, B.; Bajko, M.; Ballarino, A.; Barzi, E.; Bellomo, G.; Benedikt, M.; Bermudez, S. I.; Bordini, B.; Bottura, L.; Brouwer, L.; Bruzzone, P.; Caiffi, B.; Caspi, S.; Chakraborti, A.; Coatanea, E.; De Rijk, G.; Dhalle, M.; Durante, M.; Fabbricatore, P.; Farinon, S.; Felice, H.; Fernandez, A.; Fernandez, I. S.; Gao, P.; Gold, B.; Gortsas, T.; Gourlay, S.; Juchno, M.; Kashikhin, V.; Kokkinos, C.; Kokkinos, S.; Koskinen, K.; Lackner, F.; Lorin, C.; Loukas, K.; Louzguiti, A.; Lyytikainen, K.; Mariotto, S.; Marchevsky, M.; Montenero, G.; Munilla, J.; Novitski, I.; Ogitsu, T.; Pampaloni, A.; Perez, J. C.; Pes, C.; Petrone, C.; Polyzos, D.; Prestemon, S.; Prioli, M.; Ricci, A. M.; Rifflet, J. M.; Rochepault, E.; Russenschuck, S.; Salmi, T.; Santillana, I. A.; Savary, F.; Scheuerlein, C.; Segreti, M.; Senatore, C.; Sorbi, M.; Statera, M.; Stenvall, A.; Tavian, L.; Tervoort, T.; Tommasini, D.; Toral, F.; Valente, R.; Velev, G.; Verweij, A. P.; Wessel, S.; Wolf, F.; Zimmermann, F.; Zlobin, A. V.

doi:10.1109/TASC.2019.2900556

A future circular collider (FCC) with a center-of-mass energy of 100 TeV and a circumference of around 100 km, or an energy upgrade of the LHC (HE-LHC) to 27 TeV require bending magnets providing 16 T in a 50-mm aperture. Several development programs for these magnets, based on Nb3Sn technology, are being pursued in Europe and in the U.S. In these programs, cos-theta, block-type, common-coil, and canted-cos-theta magnets are explored; first model magnets are under manufacture; limits on conductor stress levels are studied; and a conductor with enhanced characteristics is developed. This paper summarizes and discusses the status, plans, and preliminary results of these programs.