Cryogenic Test of the Full-Size Superconducting Magnet for the Booster Synchrotron of the NICA Project

Abstract

Abstract A full-size prototype dipole magnet has been designed, fabricated and tested for the Booster synchrotron of a new collider facility NICA at JINR in Dubna. The magnet is based on a cold window frame iron yoke and a curved single-layered superconducting winding made from a hollow NbTi composite superconductor cable cooled with a forced two-phase helium flow at T=4.5 K. The maximal operating magnetic field in the elliptical aperture of 128 mm x 64 mm is 1.8 T. The magnetic field ramp rate of 1.2 T/s should be achievable. The design features of the magnet 2.2 m long as well as the test results are presented.