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Test of copper-braid-stabilized bus lines for superconducting dipole magnets

Conference ·
OSTI ID:416695
 [1]; ;  [2]
  1. NKK Corp., Kawasaki (Japan)
  2. National Lab. for High Energy Physics (KEK), Tukuba (Japan)
A high cryogenic stability suprconducting bus-line has been developed to connect a superconducting dipole magnet with a full length of 13 m to a current lead approximately 2 meters from the magnet. The superconducting bus-line is made of NbTi strand cables for magnet use soldered to copper braid. The copper braid has a large surface area to improve cooling efficiency and increase cryogenic stability. Three kinds of bus-line are prepared on experimental basis: a bare superconducting cable, a superconducting cable joined copper braid with a thin layer of solder, and one made by filling the inside of copper braid with solder. Cryogenic stability tests confirmed that a bus-line equipped with a copper braid provides twice the cryogenic stability as a bare superconducting cable.
OSTI ID:
416695
Report Number(s):
CONF-950722--
Country of Publication:
United States
Language:
English

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