Non harmonic NMR spin echo imaging

Details Non harmonic NMR spin echo imaging Non harmonic NMR spin echo imaging

1985-06-06

1987-09-22

Noland, Tom

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01R 3320

Patent

active

046958002

ABSTRACT:
A technique for producing multiple spin echo signals following an initial excitation pulse is provided. A first inverting pulse is applied a given time interval following the initial excitation pulse, resulting in the formation of the usual first spin echo signal after passage of the given time interval. At a later point in time, a second inverting pulse is applied. The time interval between the initial excitation pulse and this second inverting pulse is not required to be harmonically related to the first given time interval. This results in the production of at least a second, later occurring spin echo signal which does not contain harmonically-related artifact components of the earlier pulses and spin echo signals.

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"Effects of Diffusion in Nuclear Magnetic Resonance Spin-Echo Experiments"; Journal of Chemical Physics, vol. 34, No. 6, pp. 2057-2061; Jun. 1961; D. E. Woessner.

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