| 摘要 |
A toroidal field coil 101-106, for generating a toroidal magnetic field in a nuclear fusion reactor comprising a toroidal plasma chamber 107 having a central column 108, the toroidal field coil comprising a plurality of windings 109 passing through the central column and around the outside of the plasma chamber. Each winding includes a cable comprising a plurality of high-temperature superconductor (HTS) tapes, each HTS tape including one or more layers of a high-temperature superconductor material. At least one of the cables passing closer to the centre of the central column may have a smaller cross-section than a cable passing through the central column further away from the centre (figure 6A). The tapes forming the cables may be twisted torsionally as the cable passes around the outside of the plasma chamber. |
