摘要 |
PROBLEM TO BE SOLVED: To provide a configuration of a superconducting solenoid coil wherein a critical current does not degrade, and to provide a superconducting coil structure which does not cause degradation of the critical current due to a magnetic field component in a direction vertical to a surface of a tape wire when the superconducting coil is configured by combining with a coil which generates an external magnetic field, by using such a superconducting solenoid coil as above. SOLUTION: The superconducting solenoid coil is configured by spirally multi-layer winding the tape wire including a superconducting wire around the periphery of a cylindrical winding drum portion in a superconducting coil manufacturing spool provided with the cylindrical winding drum. When an angle made by a longitudinal direction of the multi-layer wound tape wire and an axial direction of the winding drum portion isα(rad: 0<α<π/2), the angleαgets larger as approaching the end of the winding drum portion, at the neighborhood of the end in the axial direction of the winding drum portion. COPYRIGHT: (C)2009,JPO&INPIT |