Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
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
Haken Jack E.
Tokar Michael J.
U.S. Philips Corporation
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