Preliminary Design of the Nb3Sn cosθ Short Model for the FCC

Autor: Riccardo Valente, M. Prioli, Samuele Mariotto, Alessandra Pampaloni, Ernesto De Matteis, Massimo Sorbi, Riccardo Musenich, Friedrich Lackner, F. Levi, Sergio Burioli, Giorgio Bellomo, Pasquale Fabbricatore, Stefania Farinon, M. Statera, Davide Tommasini
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Popis: 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 $\theta$ Optimized Nb $_3$ 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.
Databáze: OpenAIRE