SUPPRESSION OF RADIATION DAMPING IN NMR IN LIQUIDS BY ACTIVE ELECTRONIC FEEDBACK

被引：100

作者：

BROEKAERT, P

JEENER, J

机构：

[1] Faculté des Sciences (CP-232), Université Libre de Bruxelles

来源：

JOURNAL OF MAGNETIC RESONANCE SERIES A | 1995年 / 113卷 / 01期

关键词：

D O I：

10.1006/jmra.1995.1056

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Radiation damping in high-resolution NMR can be strongly suppressed by RF feedback on the tuned sample circuit, without appreciable degradation of the signal-to-noise ratio for the detection of small signals. The issue of stability of the high-gain RF feedback loop is discussed, and details are given about a practical realization of the necessary very-narrow-band filter. Experimental results confirm the expected performance of the new scheme. (C) 1995 Academic Press, Inc.

引用

页码：60 / 64

页数：5