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- R.U. Valente
La Sapienza University of Rome, Rome, Italy
- S. Burioli, P. Fabbricatore, S. Farinon, F. Levi, R. Musenich, A. Pampaloni
INFN Genova, Genova, Italy
- E. De Matteis, M. Statera
INFN/LASA, Segrate (MI), Italy
- F. Lackner, D. Tommasini
CERN, Geneva, Switzerland
- S. Mariotto, M. Prioli
INFN-Milano, Milano, Italy
- M. Sorbi
Universita’ degli Studi di Milano & INFN, Segrate, Italy
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In the context of the Future Circular Collider hadron-hadron (FCC-hh) R&D program, the Italian Institute of Nuclear Physics (INFN), in collaboration with CERN, is responsible for designing and constructing the Falcon Dipole (Future Accelerator post-LHC Costheta Optimized Nb3Sn Dipole), which is an important step towards the construction of High Field Nb3Sn magnets for a post LHC collider. The magnet is a short model with one aperture of 50 mm and the target bore field is 12 T (14 T ’ultimate’ field). The dipole is pre-loaded with the Bladder&Key technique to minimize the stress on the coils at room temperature, which are prone to degradation because of the Nb3Sn cable strain-sensitivity. The electro-mechanical 2D design is focused on the performance, the field quality and the quench protection, with emphasis to the stresses on the the conductor. The Falcon Dipole has been modelled in a 3D FEM to determine the peak field distribution and the influence of the coil ends on the field quality.
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