Concept of the High-Temperature Superconductor Magnetic System of the New Nuclotron Synchrotron

This work is carried out within the Mega-Science project of the new NICA accelerator–collider complex at the Joint Institute for Nuclear Research (JINR) in Dubna. The existing superconducting synchrotron has been operating since 1993 and requires modernization. The New Nuclotron is planned to be built using magnets made of the second-generation high-temperature superconductor (HTS) material produced by Moscow-based S-Innovations. The magnets will be cooled to 30 K with a flow of two-phase neon inside channels of the winding cable, or to 50–65 K with a flow of helium gas, using the next-generation HTS material. The magnet cooling scheme and design are presented.