超导体具有零电阻特性、迈斯纳(Meissner)效应和约瑟夫森(Josephson)效应三大基本特性,当温度、磁场及电流中的任一参数超过临界值,超导磁体都会发生失超。失超发生后,若不及时采取相应的保护措施,轻则损坏部件,重则破坏装置,甚至造成重大经济损失。因此,超导线圈的失超保护对于超导回旋加速器设计是至关重要的。230 MeV超导回旋加速器超导线圈失超保护系统 The superconductor has three basic characteristics of zero resistance, Meissner effect and Josephson effect. When any one of temperature, magnetic field and current exceeds a critical value, the superconducting magnet will be quenched. Failure occurred, if not promptly take the appropriate protective measures, ranging from damage to parts, heavy damage to the device, or even cause significant economic losses. Therefore, the quench protection of superconducting coils is crucial to the design of superconducting cyclotron. 230 MeV superconducting cyclotron superconducting coil quench protection system