Development of binary superconducting current leads with a gas cooled normal part

The design of a binary superconducting 1 kA current lead, operating between 300 K and 4.2 K, will be presented. The normal conducting part of the lead, will be cooled by high pressure helium gas of 60 K inlet temperature. The resulting warm end temperature of the conduction cooled high-temperature superconductor (HTSC) part is about 67 K and as a consequence a magnetic stray field of 0.2 T can be tolerated, A total heat load of 0.2 W at 4.2 K has been foreseen. The required room temperature power input of the refrigerator is reduced to about 25 % as compared to an optimised conventional current lead.


Published in:
Cryogenics, 34, 627-630
Year:
1994
ISSN:
0011-2275
Note:
15th International Cryogenic Engineering Conference (ICEC 15)
JUN 07-10, 1994
GENOVA, ITALY
ICEC
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-12-03


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