Frame structure for a magnet system for nuclear spin tomography

Details Frame structure for a magnet system for nuclear spin tomography Frame structure for a magnet system for nuclear spin tomography

1987-03-31

1988-07-19

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335299, 324320, H01F 700

Patent

active

047588128

ABSTRACT:
A frame structure for supporting individual magnetic coils forming a magnet system used in nuclear spin tomography comprises several frame parts made from a ferromagnetic material to provide relatively simple magnetic shielding. The individual magnetic coils are concentrically aligned one behind the other along a common axis to form the magnet system. Several elongate beam, rod, or plate-shaped magnetic shielding elements extend parallel to the common axis and are evenly distributed in the circumferential direction around the magnet system thus forming a generally cylindrical surface. End-plate magnetic shielding parts having a central opening of predetermined radius are provided at the end faces of the cylindrical surface formed by the shielding elements to create a cage-like frame structure. Coil receiving elements can be used to rigidly connect the axis-parallel shielding elements with the individual magnetic coils.

REFERENCES:
patent: 4560933 (1983-07-01), Forster et al.
patent: 4587490 (1986-05-01), Muller et al.
patent: 4590452 (1984-08-01), Ries et al.
patent: 4612505 (1986-09-01), Zijlstra
patent: 4646045 (1987-02-01), Chari et al.
patent: 4646046 (1987-02-01), Vakrek et al.

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