Radiation damping diagnostics

With the trend of designing supersensitive probes and very-high-field magne ts, the phenomenon of radiation damping is increasingly being perceived as starting to invade the realm of normal nuclear magnetic resonance. This art icle explores the scope and limitations of the Various spectral tools avail able to diagnose the presence of radiation damping. It is shown that the re covery rate of the M-z magnetization is the most sensitive parameter to ind icate weak damping. This effect can be measured by using suitable gradient techniques. (C) 1999 John Wiley & Sons, Inc.