Correction coil assembly for NMR magnets

Details Correction coil assembly for NMR magnets Correction coil assembly for NMR magnets

1984-07-05

1985-04-02

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Superconductive type

335299, 324320, H01F 722

Patent

active

045090300

ABSTRACT:
An NMR magnet correction coil comprises a plurality of cylindrical coil forms coaxially disposed with radially exterior coil forms possessing saddle coils so as to provide slits in the exterior forms. The outermost coil form is wrapped with a non-magnetic wire in order to keep the forms in a fixed relationship. If three or more coil forms are employed, the inner forms are wrapped with a band of material which also serves to provide a spiral flowpath for cryogens such as liquid helium. A pair of keys is provided for tieoff and insulation of the outer wire band, as well as for positioning of the entire assembly.

REFERENCES:
patent: 3185900 (1965-05-01), Jaccarino et al.
patent: 3469180 (1969-09-01), Anderson
patent: 3577067 (1971-05-01), Weaver
patent: 4363981 (1982-12-01), Laskaris
patent: 4456881 (1984-06-01), Compton

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