Conceptual Design of a 20 T Hybrid Cos-Theta Dipole Superconducting Magnet for Future High-Energy Particle Accelerators

Summary

This paper presents the engineering design of a 20 T hybrid superconducting dipole magnet intended for future high-energy particle accelerators, utilising six layers combining Nb₃Sn low-temperature superconductor with Bi2212 high-temperature superconductor technology. The authors demonstrate that 20 T operation is achievable whilst maintaining accelerator-grade field quality, avoiding conductor degradation, and keeping mechanical stresses within acceptable limits. Such magnets would enable construction of more compact, higher-energy circular accelerators such as a proposed 80 km machine capable of circulating 100 TeV proton beams.

UK applicability

This work is not applicable to UK farming systems, soil health, nutrient density, or food systems research. The paper addresses fundamental physics infrastructure and has no direct relevance to the Vitagri Pulse Brain catalogue remit.

Key measures

Magnetic field strength (20 T target), conductor degradation thresholds, stress limits within magnet structure, field quality for accelerator applications

Outcomes reported

The study presents the conceptual design of a 20 T hybrid dipole magnet combining low-temperature (Nb₃Sn) and high-temperature (Bi2212) superconductors. The design demonstrates feasibility of achieving 20 T magnetic field with accelerator-quality field performance whilst maintaining conductor integrity and safe stress limits.

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