Nutation Sequences for Magnetic Resonance Imaging in Solids
Phys. Rev. Lett. 55, 1923 – Published 28 October, 1985
DOI: https://doi.org/10.1103/PhysRevLett.55.1923
Abstract
Novel radio-frequency NMR pulse sequences are presented and their application to imaging of solids with use of rf field gradients is discussed. The sequences cause a nuclear spin to precess about the static field direction at a rate proportional to the strength of certain of the pulses. This forced precession is independent of the resonance offset and of couplings to other spins. The pulse-sequence design is described by means of coherent averaging theory and is confirmed experimentally and numerically.