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| Published Articles | |
| Title | F2D2: A block-coil short-model dipole toward FCC |
| Author(s) | Felice, Helene (IRFU, Saclay) ; Calvelli, Valerio (IRFU, Saclay) ; Durante, Maria (IRFU, Saclay) ; Mallon, Philip (IRFU, Saclay) ; Manil, Pierre (IRFU, Saclay) ; Millot, Jean-Francois (IRFU, Saclay) ; Minier, Gilles (IRFU, Saclay) ; Rochepault, Etienne (IRFU, Saclay) ; Bord, Alexandre (U. Lorraine) ; Perraud, Simon (IRFU, Saclay) ; Izquierdo Bermudez, Susana (CERN) |
| Publication | 2019 |
| Number of pages | 7 |
| In: | IEEE Trans. Appl. Supercond. 29 (2019) 4001807 |
| DOI | 10.1109/TASC.2019.2897054 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN FCC |
| Abstract | In the framework of the Future Circular Collider (FCC) program, and in collaboration with CERN, CEA is developing a 1.5-m-long single aperture Nb$_3$Sn block dipole. The so-called FCC Flared-end Dipole Demonstrator (F2D2) will produce at least 15 T with 14% margin at 1.9 K and will be assembled in a shell-based support structure. Its magnetic design is derived from the block-coil option proposed in the EuroCirCol studies and relying on graded cables for improved efficiency. The design uses identical strand dimensions but a lower critical current density according to the performance of a currently available conductor. The main challenge of this magnet lies in the concepts of joints between the conductor grades, which will be implemented for the first time in a Nb$_3$Sn block dipole. After presenting the overall design of the magnet from a magnetic and mechanical standpoint, chosen fabrication techniques are detailed. |
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