Hybrid high field superconducting assembly and fabrication metho

Details Hybrid high field superconducting assembly and fabrication metho Hybrid high field superconducting assembly and fabrication metho

1995-11-08

1998-06-09

Gellner, Michael L.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Superconductive type

H01F 508

Patent

active

057641218

ABSTRACT:
In a high field superconducting magnet device, e.g., for NMR, a conventional low temperature superconducting solenoid type magnet is combined with an inserted superconducting magnet, which is fabricated from high temperature superconducting materials having very high critical currents. Both magnets operate with stability at the same low temperature in persistent modes after operating conditions are achieved. The flux field and superconducting currents in the inserted superconducting magnet are generated by flux trapping when the field of the low temperature superconducting solenoid type magnet is reduced. The field of the hybrid magnet assembly is the resultant of the respective fields of the two magnets.

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J.W. Burgoyne, et al., "Flux jump instabilities in a bulk Bi.sub.2 Sr.sub.2 CaCu.sub.s O.sub.8+x flux tube", Cryogenics 1994, vol. 34, No. 6, pp. 507-512.

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