DIRECT MEASUREMENT OF MULTIPLE QUANTUM RELAXATION TIME IN AX SYSTEM
AX体系多量子弛豫时间的直接探测

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.