固体核磁共振中旋转回波激发的研究

STUDY OF THE EXCITATION OF A ROTARY ECHO PULSE SEQUENCE IN SOLID-STATE NMR SPECTROSCOPY

本文提出的旋转回波脉冲序列具有激发带宽适中,实验参数调整简单的特点,可广泛应用于固体样品的核磁共振谱测量中.理论计算和实验结果表明它比传统的双90°回波序列的激发效果好.

A pulse sequence, namely rotary echo, with modest excitation bandwidth and mere adjustment of the experimental parameters is proposed in the present article. That the superiority of the suggested pulse sequence over the conventional two 90?echo sequence is confirmed by theoretical calculation and experimental results.