Method and apparatus for high resolution nuclear magnetic resona

Details Method and apparatus for high resolution nuclear magnetic resona Method and apparatus for high resolution nuclear magnetic resona

1979-07-09

1981-12-08

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

G01N 2700

Patent

active

043050360

ABSTRACT:
A nuclear magnetic resonance line broadened by an inhomogeneous magnetic field can be narrowed by rotating the sample. This, however, produces rotational side bands having a frequency equal to the frequency of a main signal plus/minus integer multiples of the speed of rotation. The generation of such spurious rotational side bands is avoided by varying the speed of rotation of the sample within a predetermined range of speeds. The lower limit of said range should be high enough to provide for narrowing the nuclear magnetic resonance lines by rotating the sample.

REFERENCES:
patent: 2960649 (1960-11-01), Bloch
patent: 3091732 (1963-05-01), Anderson et al.
patent: 3681683 (1972-08-01), Huber
patent: 3746971 (1973-07-01), Storey
patent: 3911355 (1975-10-01), Leane
patent: 4077002 (1978-02-01), Erwine
patent: 4088944 (1978-05-01), Engler

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