High Field Cos-Theta FalconD-C Dipole Magnet Development at CERN
Year: 2025
Type: article
Abstract: The FalconD (Future Accelerator post-LHC Cos-θ Optimized Nb3Sn Dipole magnet is part of the High Field Magnet (HFM) CERN programme. In collaboration with the Italian Institute for Nuclear Physics (INFN Genova and LASA Milano), CERNis developing a cosθ dipole magnet beyond 12 T based on proven Nb3Sn technology in the MQXF quadrupole used in the high-luminosity upgrade of the LHC. The magnet, with design aperture diameter of 50 mm, provides a bore field of 12 T for a 73 TeV center-of-mass energy scenario for the Future FCC-hh Circular Collider. The project has specific objectives to investigate cos-θ short magnet model design based on a two-layers coil with a wide high current cable. Moreover, the study of mechanical dipole structures based on aluminum shell with bladders and key (B&K) developed for the HL-LHC MQXF quadrupole will be presented as a baseline. The structure pre-loading system assembly baseline shall be tested on sub-scale mechanical mock ups at 77 K prior to building two single aperture 1.5 m long Nb3Sn magnet models followed by a 2-in-1 dipole magnet assembly. In this paper, we provide an overview of the magnetic and structural design carried out at CERN on an increased aperture diameter variant supported by first preliminary winding trials and give insights of the project timeline. Some preliminary protection scheme assessment is presented as baseline to be tested. Following the cable winding outcomes and the mechanical properties measured, some alternative coil optimized magnetic cross-section is reported.
Authors: Arnaud Foussat, Nicola Sala, Sachin Gowrishankar, Juan Carlos Perez, Ariel Haziot, Carlos Fernandes, Lucio Fiscarelli, Mariusz Wozniak, Emmanuele Ravaioli, Oussama Id’Bahmane, Luca Gentini, Michael Guinchard, Oscar Sacristan De Frutosins, Elena Fernandez Mora, Ezio Todesco, Stefania Farinon, Alessandra Pampaloni, Massimo Sorbi, Riccardo Umberto Valente
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,645
OpenAlex ID: W4415820829