Correction of signal distortion in an NMR apparatus

Details Correction of signal distortion in an NMR apparatus Correction of signal distortion in an NMR apparatus

1992-10-19

1994-02-22

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324309, G01V 300

Patent

active

052891275

ABSTRACT:
Temporal B.sub.o shifts in NMR spectroscopy and/or imaging systems arising from pulsed field gradient induced eddy currents result in the distortion of free induction decay signals. A method of compensation of this distortion through modulation of the sender and/or receiver signal in opposite concert with the induced B.sub.o shifts is introduced. The method has the advantage of having a fast response and of not altering the magnetic gradient field. (FIG. 4)

REFERENCES:
patent: 5113865 (1992-05-01), Maeda et al.
patent: 5140268 (1992-08-01), Chan
Journal of Magnetic Resonance vol. 69 pp. 151-155, (Mar. 1986).
Journal of Magnetic Resonance vol. 90 pp. 264-278, (Apr. 1990).

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