Speaker
Description
The C400 IONS developed by Normandy Hadron Therapy and IBA is an isochronous superconducting cyclotron for cancer therapy which can deliver high intensity of alphas to carbons at 400 Mev/amu and protons at 260 MeV. A set of 4 large superconducting coils embedded in a single cryostat for a total weight of 30 tons and outer diameter 4.7 meters is combined with a magnetic steel yoke of 750 tons to deliver the magnetic field up to 4.2 Tesla. The coils are made with NbTi superconducting wire and cooled at 4.2 K in a zero boil off liquid helium bath cooled by 6 cryocoolers. The coils system includes 2 power supplies of 1100 A and 100 A with their related quench protection and dump resistors. The superconducting coils system including the cryostat, cryogenic service turret, power supplies and quench protection was built by SIGMAPHI and delivered to NHA in April 2025. The paper presents the design, manufacturing and testing of these outstanding superconducting coils.
| Paper status | No proceeding expected for this contribution. |
|---|