Summary
This paper describes the design of a four-layer Nb₃Sn cos-theta dipole magnet developed collaboratively by CERN and INFN for future high-energy particle colliders beyond the LHC era. The design employs Rutherford cable grading and the Bladder&Key technique to manage strain sensitivity whilst achieving target magnetic fields of 14–16 T. Preliminary electromagnetic optimisation was performed using 2D and 3D finite element analysis to ensure compliance with particle accelerator standards.
Key measures
Bore field strength (14 T / 16 T), field quality, coil stress margins, electromagnetic performance parameters via FEM simulation
Outcomes reported
The study presents a preliminary electromagnetic design of a four-layer cos-theta Nb₃Sn dipole magnet targeting 14 T bore field (potentially 16 T) using 2D and 3D finite element method simulations to optimise field quality and coil layout.
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