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SUPERCONDUCTING MAGNET DEVICE

  • US 20150270045A1
  • Filed: 02/10/2015
  • Published: 09/24/2015
  • Est. Priority Date: 03/18/2014
  • Status: Active Grant
First Claim
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1. A superconducting magnet device comprising:

  • a refrigerator having a cooling stage;

    a tubular former having a hollow structure;

    a permanent current switch formed by a superconducting wire wound on the former;

    a heater capable of heating the former;

    a heat transfer member that can be inserted in the former which is thermally expanded, heated by the heater, and that has a smaller coefficient of thermal expansion than the former;

    a good conductor connecting the heat transfer member and the cooling stage; and

    a superconducting coil connected in parallel to the permanent current switch.

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