SUPERCONDUCTING MAGNET, SUPERCONDUCTING MAGNET COIL, AND MANUFACTURING METHOD THEREOF

摘要

A superconducting magnet coil which does not exhibit quenching phenomenon under cooled and operational conditions is provided by using an embedding resin having sufficient low cooling restricted thermal stress and sufficient toughness to avoid the formation of cracks in the resin. The superconducting magnet coil is manufactured by winding a superconducting wire and fixing the wire with resin, wherein said resin is a low cooling restricted thermal stress and high toughness fixing resin having a release rate of elastic energy GIC at 4.2 K of at least 250J~m-2, and/or a stress intensity factor KIC of at least 1.5 MPa~~m, and/or a stress safety factor at 4.2 K of at least 3, and an allowable defect size at least of 0.3 mm.