Multiple frequency method for nuclear magnetic resonance longitu

Details Multiple frequency method for nuclear magnetic resonance longitu Multiple frequency method for nuclear magnetic resonance longitu

1997-10-01

2000-04-11

Oda, Christine K.

Electricity: measuring and testing

Particle precession resonance

Using well logging device

G01R 3320

Patent

active

060492058

ABSTRACT:
A method for determining nuclear magnetic resonance longitudinal relaxation time of a medium. The method includes magnetically polarizing nuclei in the medium along a static magnetic field, momentarily inverting the magnetic polarization of the nuclei within each one of a plurality of different spatial volumes within the medium, transversely magnetizing the nuclei in each one of the spatial volumes after an individual recovery time corresponding to each one of the spatial volumes, and measuring an amplitude of a magnetic resonance signal from each one of the spatial volumes.

REFERENCES:
patent: 4832037 (1989-05-01), Granot
patent: 4933638 (1990-06-01), Kenyon et al.
patent: 5055787 (1991-10-01), Kleinberg et al.
patent: 5055788 (1991-10-01), Kleinberg et al.
patent: 5712566 (1998-01-01), Taicher

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