The next generation particle accelerators will need to increase by an order of magnitude the center-of-mass energy: a viable solution is a 100 TeV circular collider, temporarily called Future Circular Collider (FCC). To achieve this goal, a new generation of double aperture superconducting magnets, capable of generating a high quality, stable 16 T magnetic field in a 50 mm bore is being developed. In order to achieve this challenging task, the CERN's plan includes several intermediate steps in the development of accelerator-grade Nb3Sn magnets. The first constructive phase will be a 1.5 m long, single aperture cos-theta dipole, with a target central magnetic field of 12 T and an ultimate field of 14 T. In this contribution, the preliminary 2D design of this short model, named Falcon Dipole (Future Accelerator post-Lhc Cos heta Optimized Nb3 Sn Dipole) will be presented in detail. It features a 2-layers design, with Nb3Sn state-of-art conductor in order to generate the required field. A solution for the mechanical design will also be presented: the necessary pre-stress will be given by a shell-based concept using bladders and keys. This technique avoids giving all the pre-load with just the collaring and it allows to obtain about half of the pre-stress during the assembly of the magnet at room temperature, and full pre-stress in second instance thanks to the cool down. The FalconD project aims at gaining experience on the technology involved to reach fields above 11 T with Nb3Sn coils.

Preliminary Design of the Nb3Sn cosθ Short Model for the FCC / A. Pampaloni, G. Bellomo, S. Burioli, E. De Matteis, P. Fabbricatore, S. Farinon, F. Lackner, F. Levi, S. Mariotto, R. Musenich, M. Prioli, M. Sorbi, M. Statera, D. Tommasini, R.U. Valente. - In: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. - ISSN 1051-8223. - 31:5(2021), pp. 9361140.1-9361140.5.

Preliminary Design of the Nb3Sn cosθ Short Model for the FCC

G. Bellomo;S. Mariotto;M. Sorbi;
2021

Abstract

The next generation particle accelerators will need to increase by an order of magnitude the center-of-mass energy: a viable solution is a 100 TeV circular collider, temporarily called Future Circular Collider (FCC). To achieve this goal, a new generation of double aperture superconducting magnets, capable of generating a high quality, stable 16 T magnetic field in a 50 mm bore is being developed. In order to achieve this challenging task, the CERN's plan includes several intermediate steps in the development of accelerator-grade Nb3Sn magnets. The first constructive phase will be a 1.5 m long, single aperture cos-theta dipole, with a target central magnetic field of 12 T and an ultimate field of 14 T. In this contribution, the preliminary 2D design of this short model, named Falcon Dipole (Future Accelerator post-Lhc Cos heta Optimized Nb3 Sn Dipole) will be presented in detail. It features a 2-layers design, with Nb3Sn state-of-art conductor in order to generate the required field. A solution for the mechanical design will also be presented: the necessary pre-stress will be given by a shell-based concept using bladders and keys. This technique avoids giving all the pre-load with just the collaring and it allows to obtain about half of the pre-stress during the assembly of the magnet at room temperature, and full pre-stress in second instance thanks to the cool down. The FalconD project aims at gaining experience on the technology involved to reach fields above 11 T with Nb3Sn coils.
Accelerator dipoles; FCC; Nb; 3; Sn; superconducting magnets
Settore FIS/01 - Fisica Sperimentale
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/841568
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