Method of and device for determining a nuclear spin density dist

Details Method of and device for determining a nuclear spin density dist Method of and device for determining a nuclear spin density dist

1980-06-24

1982-10-12

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, 324309, G01N 2700

Patent

active

043541577

ABSTRACT:
It has been found that devices for determining nuclear spin density distributions in an object by means of nuclear spin resonance measurements produce artefacts in the calculated density distributions. The artefacts occurring are dependent of the gradient magnetic fields which are used during the measurements and which influence the excited nuclear spin. The invention concerns two filters for elimination of the artefacts in dependence of the kind of modulation of the gradient magnetic field.

REFERENCES:
patent: 3932805 (1976-01-01), Abe
patent: 4070611 (1978-01-01), Ernst
patent: 4191919 (1980-03-01), Haney
patent: 4210861 (1980-07-01), Tsuda
patent: 4300096 (1981-11-01), Harrison

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