SUPERCONDUCTING WIRE AND SUPERCONDUCTING COIL EMPLOYING IT

摘要

Tape-shaped superconducting wires are made by forming a superconducting film on the substrate, wherein at least the superconducting film is slit, electrically separated into a plurality of superconducting film parts each having a rectangular cross section and arranged in parallel to form parallel conductors. In this way, it is possible to provide superconducting wires capable of containing A.C. loss. A superconducting coil made by winding the superconducting wires described above, wherein, in view of its structure or arrangement, the provision of a coil structure containing at least partially a part wherein the perpendicular interlinkage magnetic flux acting among various conductor elements of the parallel conductors by the distribution of the magnetic field generated by the superconducting coils act to cancel mutually enables a simple structure without transposition to cancel mutually the interlinkage magnetic flux by the perpendicular magnetic field against wires, to contain circulating current within the wires by the perpendicular magnetic field and to make shunt current uniform. In this way, it is possible to provide a low-loss superconducting coil.