Seminar By Arnaud Devred and Amalia Ballarino, CERN
Title: Status of the first Nb3Sn accelerator magnets to be installed in the LHC and development of next generation Nb3Sn wires for the Future Circular Collider
Abstract: The 11 T magnets are well into production at CERN and will be the first Nb3Sn accelerator magnets ever installed in a particle accelerator. In the first part of the presentation, Arnaud Devred will report on the status of production and the results of the cold test of the 1st series
11 T magnet, which meet operational requirements for the machine and are now being readied for tunnel installation. He will also discuss some of the challenges that were encountered along the way and outstanding issues that still need to be addressed to bring Nb3Sn technology to maturity and enabling its industrialization. For the next step, CERN is developing a pragmatic approach to the definition of its Nb3Sn R&D beyond HL-LHC and is considering a dual strategy of engineering development around 12 T and research towards 16 T magnets.
In the second part of the presentation, Amalia Ballarino will report on the status of the various efforts carried out worldwide to boost wire performances towards the FCC target of 1500 A/mm2 at 4.2 K and 16 T.