THERMAL PERMANENT CURRENT SWITCH

摘要

PURPOSE:To enable rapid dissipation of heat produced in a switching element of a thermal permanent current switch used for superconductive coil provided in a cryostat by covering the switch element with superconductive material. CONSTITUTION:A superconductor forms a switching element 2 together with a heater, is wound via an insulating material 4 on a bobbin 3 formed of superconductive material, and the surface of the switching element 2 is covered with a cover 5 made of superconductive material via the material 4. A coolant passage hole 6 is perforated at the axial center of the bobbin 3.