| 摘要 |
PURPOSE:To make a pump for circulation of refrigerant to needless and to cotrive to enhance superconducting stability and cooling characteristics of the superconductive magnetic device by a method wherein a bundled conductor is wound on a supporting structure having a coil accomodating groove, and is dipped with gas or liquid helium as a cooling refreigerant. CONSTITUTION:The bundled conductor 7 is consisted of supercoductive fine wires 9 being accomodated inside of a metal cylinder 8 having a rectangular section, a turn insulator 10 consisted of a laminated glass plate, etc., is applied on the outer circumferential face of the metal cylinder 8, and circular penetrating holes 11 for circulation of the refrigerant are provided respectively on the insulator 10 and the metal cylinder 8. The bundled conductor 7 having the similar shape with a hollow conductor is wound around in a pancake shape to form the magnet interposing a cooling spacer 12 as an interlayer insulator between them, and is accomodated in a vessel 13 to be accomodated with the gas or the liquid helium as the refrigerant. Accordingly the pump for circulation of the refrigerant becomes needless, electric power loss for circulation is eliminated, cooling characteristics and superconducting stability can be enhanced broadly. |
