BROAD-BAND DECOUPLING IN NMR WITH FREQUENCY-MODULATED CHIRP PULSES

被引：82

作者：

FU, RQ ^{[1
]}

BODENHAUSEN, G ^{[1
]}

机构：

[1] FLORIDA STATE UNIV,DEPT CHEM,TALLAHASSEE,FL 32306

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 245卷 / 4-5期

关键词：

D O I：

10.1016/0009-2614(95)01037-A

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In NMR of spins with I=1/2 in an isotropic phase, it is demonstrated by simulation and experiment that virtually unlimited bandwidths can be decoupled effectively by using chirp pulses with linear frequency modulation for adiabatic inversion combined with phase-cycles and supercycles similar to those used in composite pulse decoupling. The average radio-frequency amplitude required is modest compared to other techniques. In applications with inhomogeneous radiofrequency (RF) fields, as in magnetic resonance imaging and localized spectroscopy with surface coils, the RF amplitude can be apodized at the rising and falling edges of chirp pulses to improve adiabatic behavior.

引用

页码：415 / 420

页数：6

共 19 条

[1]

BASUS VJ, 1979, J MAGN RESON, V35, P19, DOI 10.1016/0022-2364(79)90076-3

[2] BROAD-BAND AND NARROW-BAND SPIN DECOUPLING USING ADIABATIC SPIN FLIPS [J].