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173. Performance of insitu superconductors in solenoids

Author

Ostenson, J. E., Finnemore, D. K., Verhoeven, J. D., and Gibson, E. D.

Abstract

A series of small solenoids have been wound from insitu prepared Nb3‐Sn‐Cu superconducting wire in order to determine the suitability of these materials for magnets which require bending strains greater than 2% at the surface of the wire. In the range from 4 to 14 T, Jc of the solenoid is equivalent to or exceeds performance for unstrained material. For best performance in ac fields, it is essential to twist the wire and to support the windings with a potting material. Calorimetric measurements of the ac losses in the 8–12 T range give 1 mW/cm3 for magnetic fields ramped at 1 T/s.

Published
1980

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