Media type: E-Article Title: R2D2, the CEA Graded Nb3Sn Research Racetrack Dipole Demonstrator Magnet Contributor: Calvelli, Valerio; Mallon, Philip; Durante, Maria; Felice, Helene; Rochepault, Etienne; Manil, Pierre; Minier, Gilles; Rifflet, Jean-Michel; Perez, Juan imprint: Institute of Electrical and Electronics Engineers (IEEE), 2021 Published in: IEEE Transactions on Applied Superconductivity Language: Not determined DOI: 10.1109/tasc.2021.3075298 ISSN: 1051-8223; 1558-2515; 2378-7074 Origination: Footnote: