Summary
This paper describes R2D2 (Research Racetrack Dipole Demonstrator), a single-layer graded Nb₃Sn superconducting magnet developed by CEA in collaboration with CERN as a scaled demonstrator for the F2D2 dipole magnet. The R2D2 device is designed to validate cable grading techniques, high-current operation (16 kA), and quench protection at very high energy densities in a simplified geometry whilst retaining key features of the full-scale magnet intended for the Future Circular Collider (FCC-hh) project.
UK applicability
This work has no direct applicability to UK agricultural, soil health, or nutrition research. It is fundamental physics research in superconducting magnet technology for particle physics infrastructure.
Key measures
Magnetic field strength (11–12 T intermediate field, target 15.5 T for F2D2), operating current (up to 16 kA), quench energy density (up to 650 kJ/m or 168 MJ/m³), operating temperature (1.9 K)
Outcomes reported
This paper reports on the design, fabrication strategy, and expected performance of R2D2, a graded Nb₃Sn racetrack dipole demonstrator magnet intended to validate fabrication methods and technological aspects for the larger F2D2 magnet.
Topic tags
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