【摘要】 本文建议了一种直接测量AX系统多量子弛豫的方法。不用作两维谱,测量过程类似于常规弛豫时间测量,实验简便、准确。由所测得的单量子和多量子弛豫时间可以导出起伏场的交叉相关系数,这提供了单量子NMR所不能获得的信息。本文还讨论了AX体系多量子弛豫机理的特殊性。更多还原

【Abstract】 A direct measuring method of multiple quantum relaxation in the AX systems without 2D is proposed. The approach like those of routine measurements of relaxation time is simple and accurate. The cross correlation coefficient of fluctuation magnetic field, which is not obtainable with single quantum NMR alone, is deduced from the multiple quantum relaxation times measured by this method. The unique mechanism of multiple quantum relaxation in AX systems is also discussed.更多还原