Cooling system and method for magnetic resonance imaging device

A cooling system includes a first cooling loop having a first cooling fluid configured for circulation therethrough and a second cooling loop having a second cooling fluid configured for circulation therethrough. The first cooling loop is in thermal communication with the superconducting magnet and is configured to provide primary cooling for the magnet, and the second cooling loop is in thermal communication with the superconducting magnet and is configured to provide secondary cooling for the magnet. 冷却系统包括：第冷却环路，其具有构造成用于循环穿过其的第冷却流体；以及第二冷却环路，其具有构造成用于循环穿过其的第二冷却流体。第冷却环路与超导磁体热连通，且构造成对该磁体提供主冷却，且第二冷却环路与超导磁体热连通，且构造成对该磁体提供副冷却。