On Monday January 25, 2021, the last collaring of the 11T dipole collared-coils was completed in the Large Magnet Facility in building 180. The work was done by the company GE (General Electric), formerly Alstom in Belfort (France), under the Contract S197/TE/HL-LHC. The 11T dipole magnet is made of Nb3Sn superconductor. These magnets, meant to replace one LHC main dipole on either side of IP7 with the goal of providing space for additional collimators, are part of the High Luminosity LHC Project at CERN.
In the picture above, the stakeholders can be seen standing along the collaring press conveyor, a dedicated team put in place for the production of the coils and collared coils in the Large Magnet Facility. The members of the 11T dipole production team are from the company GE, FSU contracts, and CERN. All have largely contributed to the completion of the production, which lasted for almost three years. The last collared coils assembly is also visible, still in the collaring tooling, prior to being moved to another bench for the final reception tests which will include geometry, electrical, and magnetic measurements.
By A. Devred - TE - MSC Group Leader