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Electrical joints between superconducting coil modules in the GEM detector magnet

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12 Author(s)
B. A. Smith ; Plasma Fusion Center, MIT, Cambridge, MA, USA ; P. G. Marston ; S. Pourrahini ; Z. S. Piec
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The GEM detector magnet at the Superconducting Super Collider is built in two halves each of which is comprised of 12 single layer superconducting coil modules wound on a 19 m mean diameter and joined with a low resistance lap joint employing the superconducting strands and a copper stabilizer. Each joint half is attached to the sheathed cable-in-conduit conductor end, and assembly of the mating halves is completed in the field. The target resistance per joint is 5×10 -10 Ω at an operating current of 50 kA. Details of the joint design, its cooling and results of tests on prototypical sub- and full-scale models using superconducting strands are presented

Published in:

IEEE Transactions on Magnetics  (Volume:30 ,  Issue: 4 )