| 摘要 |
985,378. Superconductor apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. April 16, 1963 [Oct. 2, 1962], No. 14816/63. Heading H1K. An electrical switch for superconducting apparatus comprises a superconductor wire 11 in a shell 13 with means 17 for admitting coolant from crystal 20 into the shell and means 15, controlled by valve 21, for admitting gas such as helium above the transition temperature, to render wire 11 non-superconducting. Wire 11 is connected in series with circuitry 19 which can thus be effectively controlled by valve 21. The superconductor 11 may consist of Nb, In, Nb-Zr, or Nb 3 Sn and may be ribbon shaped and have fins affixed to facilitate rapid heat exchange. |
