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Article Dans Une Revue IEEE Trans.Appl.Supercond. Année : 2023

Conceptual design of 20 T hybrid accelerator dipole magnets

P. Ferracin
  • Fonction : Auteur
G. Ambrosio
  • Fonction : Auteur
M. Anerella
  • Fonction : Auteur
D. Arbelaez
  • Fonction : Auteur
L. Brouwer
  • Fonction : Auteur
E. Barzi
  • Fonction : Auteur
L. Cooley
  • Fonction : Auteur
J. Cozzolino
  • Fonction : Auteur
L. Garcia Fajardo
  • Fonction : Auteur
R. Gupta
  • Fonction : Auteur
M. Juchno
  • Fonction : Auteur
V.V. Kashikhin
  • Fonction : Auteur
F. Kurian
  • Fonction : Auteur
V. Marinozzi
  • Fonction : Auteur
I. Novitski
  • Fonction : Auteur
J. Stern
  • Fonction : Auteur
G. Vallone
  • Fonction : Auteur
B. Yahia
  • Fonction : Auteur
A.V. Zlobin
  • Fonction : Auteur

Résumé

Hybrid magnets are currently under consideration as an economically viable option towards 20 T dipole magnets for next generation of particle accelerators. In these magnets, High Temperature Superconducting (HTS) materials are used in the high field part of the coil with so-called insert coils, and Low Temperature Superconductors (LTS) like Nb3Sn and Nb-Ti superconductors are used in the lower field region with so-called outsert coils. The attractiveness of the hybrid option lays on the fact that, on the one hand, the 20 T field level is beyond the Nb3Sn practical limits of 15-16 T for accelerator magnets and can be achieved only via HTS materials; on the other hand, the high cost of HTS superconductors compared to LTS superconductors makes it advantageous exploring a hybrid approach, where the HTS portion of the coil is minimized. We present in this paper an overview of different design options aimed at generating 20 T field in a 50 mm clear aperture. The coil layouts investigated include the Cos-theta design (CT), with its variations to reduce the conductor peak stress, namely the Canted Cos-theta design (CCT) and the Stress Management Cos-theta design (SMCT), and, in addition, the Block-type design (BL) including a form of stress management and the Common-Coil design (CC). Results from a magnetic and mechanical analysis are discussed, with particular focus on the comparison between the different options regarding quantity of superconducting material, field quality, conductor peak stress, and quench protection.

Dates et versions

hal-04006463 , version 1 (27-02-2023)

Identifiants

Citer

P. Ferracin, G. Ambrosio, M. Anerella, D. Arbelaez, L. Brouwer, et al.. Conceptual design of 20 T hybrid accelerator dipole magnets. IEEE Trans.Appl.Supercond., 2023, 33 (5), pp.1-7. ⟨10.1109/TASC.2023.3250382⟩. ⟨hal-04006463⟩
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