Final Design and Production of a 10 T HTS Energy-Saving Dipole Magnet for the Italian Facility IRIS

The Innovative Research Infrastructure on Applied Superconductivity (IRIS) is a project funded by the Italian Ministry for University and Research, led by INFN, and coordinated by the LASA laboratory. This project, currently in its final phase, aims at advancing superconductivity for both fundamental research and societal applications, particularly in medical physics and energy. Within this framework, IRIS includes the design and construction of an energy saving, fully high-temperature superconducting dipole magnet (ESMA). ESMA is intended to be both a technological demonstrator for sustainable, cryogen free magnets, and a user magnet for the IRIS laboratory at Genoa, Italy. This article describes the final design of the dipole and its fabrication status in ASG Superconductors S.p.A. The electromagnetic design consists of 12 flat racetracks, and the target central field at operation is of 10 T. To withstand Lorentz forces in operation, a mechanical structure made by high strength alloys has been designed and produced. The design of the cryogen-free cooling system is also proposed. Finally, the protection scheme is discussed, together with the incoming tests and operation.