Plane Selection in Indirect MARF Solid-State Imaging

Abstract

A slice-selection method developed within the frame of the sequence forindirectmagicangle in therotatingframe (I-MARF) imaging of solids is proposed. The pulse sequence is based on the Lee–Goldburg sequence, adapted to imaging by a dedicated gradient setup, and it is left unchanged, except for the insertion of a dc “selection-plane magnetic field.” The selection-plane field makes the magic-angle coherent-averaging condition spatially varying and delimits the selected slice to only the sample portion where the residual dipolar coupling has been preserved.