Two-Layer 16 T Cos θ Dipole Design for the FCC

Journal Article · 22 February 2018 · IEEE Transactions on Applied Superconductivity

DOI: https://doi.org/10.1109/TASC.2018.2806916 · OSTI ID:1422186

Holik, Eddie Frank ^[1]; Ambrosio, Giorgio ^[2]; Apollinari, Giorgio ^[2]

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1. Angelo State Univ., San Angelo, TX (United States)
2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Here, the Future Circular Collider or FCC is a study aimed at exploring the possibility to reach 100 TeV total collision energy which would require 16 tesla dipoles. Upon the conclusion of the High Luminosity Upgrade, the US LHC Accelerator Upgrade Pro-ject in collaboration with CERN will have extensive Nb₃Sn magnet fabrication experience. This experience includes robust Nb₃Sn conductor and insulation scheming, 2-layer cos2θ coil fabrication, and bladder-and-key structure and assembly. By making im-provements and modification to existing technology the feasibility of a two-layer 16 tesla dipole is investigated. Preliminary designs indicate that fields up to 16.6 tesla are feasible with conductor grading while satisfying the HE-LHC and FCC specifications. Key challenges include accommodating high-aspect ratio conductor, narrow wedge design, Nb₃Sn conductor grading, and especially quench protection of a 16 tesla device.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1422186
• Report Number(s): FERMILAB-PUB-18-042-TD; 1656685; TRN: US1801591
• Journal Information: IEEE Transactions on Applied Superconductivity, Vol. 28, Issue 3; ISSN 1051-8223
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)Copyright Statement
• Country of Publication: United States
• Language: English