Low-frequency molecular dynamics studied by spin-lock field cycling imaging

Spin-lock adiabatic field cycling imaging (SLOAFI) relaxometry was shown to be a useful technique for obtaining a fast study of spin-lattice relaxatio n dispersion in the rotating frame. The aim of the present article is to de scribe some technical aspects of the experiment in more detail, while showi ng simple examples that can be compared with laboratory frame relaxation. W e also present here a general discussion of the equations for an off-resona nce experiment used to analyze low-frequency molecular dynamics. (C) 2000 A cademic Press.