Dynamical instabilities in liquid nuclear magnetic resonance experiments with large nuclear magnetization, with and without pulsed field gradients

In this article we extend previous studies of the dynamical instabilities to incorporate the roles of the tipping angle, the overall shape of the sample, (optional) pulsed field gradients in various directions, and radiation damping. The linear stability for small perturbations is discussed analytically in detail, and numerical simulations are used to have a glimpse at the turbulent spin motion for large perturbations. (C) 2002 American Institute of Physics.