Apparatus for adjustably mounting coils of a magnet system for n

Details Apparatus for adjustably mounting coils of a magnet system for n Apparatus for adjustably mounting coils of a magnet system for n

1983-07-22

1985-12-24

Karlsen, Ernest F.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

336 65, G01R 3308

Patent

active

045609330

ABSTRACT:
An adjusting and holding assembly for magnet coils in a nuclear spin tomography system includes mechanical adjusting devices connected to a frame structure for the mutual alignment of the connected to a frame structure for the mutual alignment of the base field magnet coils. In order to enable a relatively simple adjustment of the individual magnet coils to produce a highly homogeneous base field, at least one of the magnet coils is rigidly connected to the frame structure, while each adjustable or positionable magnet coil is held at three points via at least one support device and three adjusting devices within the frame structure. Each support device comprises a support element in the form of a spherical sector rotatably mounted to a respective coil and slidably resting on a horizontal support surface of the frame structure. The support points of the adjustable magnet coils are longitudinally spaced from the center of gravity line of the respective magnet coil so that an additional tilting force is brought about.

REFERENCES:
patent: 2947920 (1960-08-01), Hall
patent: 3418538 (1968-12-01), Roman
patent: 4315216 (1982-02-01), Clow et al.
Double, "Manual Field Adjustment for NMR Magnet", IBM Technical Disclosure Bulletin, vol. 20, No. 4, Sep. 1977.
P. C. Lauterbur, "Image Formation by Induced Local Interactions: Examples Employing Nuclear Magnetic Resonance", Nature, vol. 242, pp. 190-191, Mar. 6, 1973.
A. Ganssen et al., "Kernspin-Tomographie" (Nuclear Spin Tomographic), Computertomographic (Computer Tomography), vol. 1, pp. 2-10, 1981.

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