A simple way to properly invert intense nuclear magnetization:: application to laser-polarized xenon

被引：21

作者：

Berthault, P

Desvaux, H ^{[1
]}

Le Goff, G

Pétro, M

机构：

[1] CEA Saclay, Serv Chim Mol, F-91191 Gif Sur Yvette, France

[2] CEA Saclay, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 314卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)01135-5

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：

The strong Xe-129 NMR signal of laser-polarized samples may cause radiation damping in a high-resolution spectrometer, even if the sample is a low-pressure gas or dissolved xenon. This non-linear effect prevents proper inversion of the xenon polarization which is, however, required to safely detect the cross-relaxation between xenon and proton id SPINOE experiments. A quasi-perfect inversion profile is obtained by combining a field gradient pulse and a frequency-sweep adiabatic pulse (CHIRP pulse). This solution has the advantage of being not too affected by pulse miscalibration. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：52 / 56

页数：5

共 23 条

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Abergel D, 1996, J BIOMOL NMR, V8, P15, DOI 10.1007/BF00198136

[2] 129Xe and 1H NMR study of the reversible trapping of xenon by cryptophane-A in organic solution [J].