[Safety analysis and test advices of superconductive magnet]

Based on the current GB standard and IEC standard, some unique security risk points of the superconductive magnet were discussed and pointed, some security eigenvalue of widely used MRI were calculated, method and technology of the quench risk & protection were focused. Currently during the type test of superconductive MRI, the national standards and industry standards have not included items focus on superconductive magnet particularly, so this paper gives some recommended discussing and hopes to improve and enhance the future standard. Because superconductive MRI uses a large number of helium gas which is very short in China and if quenching, helium will evaporate quickly, so the helium recycling are also discussed.