Nuclear magnetic resonance apparatus

Details Nuclear magnetic resonance apparatus Nuclear magnetic resonance apparatus

1984-06-08

1986-09-16

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324300, G01R 3320

Patent

active

046125051

ABSTRACT:
A nuclear magnetic resonance apparatus comprises an electromagnetic system in which a shield of a magnetic material is arranged about the coil system for the homogeneous magnetic field. By providing the magnetic material, for example soft iron, directly about the coil system, a comparatively compact magnet with an intensified, interference-insensitive homogeneous magnetic field is obtained. Instead of using a closed cylinder, use can alternatively be made of a cylinder which is formed by rods. The latter is notably attractive for shielding at a larger distance, the original field in the coil then being influenced to only a minor extent. A similar shielding can be obtained by means of a Helmholtz coil pair.

REFERENCES:
patent: 3423670 (1969-01-01), Parker et al.
patent: 4490675 (1984-12-01), Knuettel

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