From Manufacture to Assembly of the 43 T Grenoble Hybrid Magnet

The Grenoble Hybrid magnet is a modular platform applying resistive and superconducting technologies to deliver various continuous high magnetic field and flux configurations. They range from 43 T in 34 mm diameter with 24 MW down to 9 T in 800 mm with the superconducting coil alone. Thanks to the ongoing upgrade of the electrical power installation of LNCMI-Grenoble up to 30 MW and possibly to 36 MW, the possibility to increase the total field up to 45–46 T in the future is considered and needs to be assessed by further dedicated studies. The key design parameters are recalled including the specifically developed superconducting conductor, the large bore outsert coil, the cryostat with the eddy-current shield and the cryogenic infrastructure. Most of the equipment of the hybrid magnet outsert has been built, tested and delivered to LNCMI-Grenoble, where integration and assembly is ongoing. The dedicated material development program initiated for the innermost resistive insert is in progress. The status of the project is given together with the main problems encountered and solved. The commissioning of the overall hybrid magnet system will start in 2020 and will be followed possibly by the first run of a new axion dark matter search experiment in preparation.