EXPERIMENTAL DEMONSTRATIONS OF SHAPED PULSES FOR NARROW-BAND INVERSION OF UNCOUPLED AND COUPLED SYSTEMS

被引：9

作者：

EWING, B

GLASER, SJ

DROBNY, GP

机构：

[1] Department of Chemistry, University of Washington, Seattle

来源：

JOURNAL OF MAGNETIC RESONANCE | 1992年 / 98卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-2364(92)90139-X

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

This paper presents experimental demonstrations of amplitude-modulated radiofrequency pulses for narrowband inversion of uncoupled spins and dipolar-coupled spin pairs in NMR. Experimental results for inversion pulses optimized for uncoupled spins are compared with theoretical predictions. These same pulses however cannot be applied to coupled spins because the spin-spin coupling interferes with the inversion. A new class of amplitude-modulated pulses, suitable for effecting inversions of longitudinal magnetization in strongly coupled spins, is experimentally demonstrated and shown to agree well with theory. © 1992.

引用

页码：381 / 387

页数：7