Gradient coil system for a nuclear spin tomography installation

Details Gradient coil system for a nuclear spin tomography installation Gradient coil system for a nuclear spin tomography installation

1985-01-29

1987-01-13

Kreitman, Stephen A.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

335299, G01R 3320

Patent

active

046367292

ABSTRACT:
The gradient coil system for a nuclear spin tomography installation encloses a hollow cylindrical support body, the cylinder axis of which extends in the z direction of an orthogonal x-y-z coordinate system with the coordinate origin in the imaging center, in which direction also the magnetic field B.sub.z of a base generating a field gradient G.sub.z, at field magnet is oriented. The gradient coil system contains for least two ring-shaped individual coils which are arranged symmetrically to the x-y plane extending through the imaging center, and furthermore, pairs of saddle-shaped individual coils arranged symmetrically to this plane, for generating field gradients G.sub.x and G.sub.y. In this gradient coil system, the sound level caused in the hollow cylindrical support body is reduced by rigidly connecting the prefabricated G.sub.x and G.sub.y gradient coils which lie on one side relative to the x-y symmetry plane to each other to form self-supporting partial baskets and by means of several non-magnetic carrier elements extending in the z direction forming a common self-supporting coil basket from these partial baskets to which the prefabricated G.sub.z gradient coils are fastened; and attaching this coil basket to the carrier body via insulating elastic support elements.

REFERENCES:
patent: 4362993 (1982-12-01), Young et al.
patent: 4438400 (1984-03-01), Patt
patent: 4456881 (1984-06-01), Compton
patent: 4517516 (1985-05-01), Hill et al.
patent: 4527124 (1985-07-01), van Uijen
patent: 4560933 (1985-12-01), Forster et al.

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