Pulse error compensating symmetric magic-echo trains

被引：35

作者：

Boutis, GS ^{[1
]}

Cappellaro, P ^{[1
]}

Cho, H ^{[1
]}

Ramanathan, C ^{[1
]}

Cory, DG ^{[1
]}

机构：

[1] MIT, Dept Nucl Engn, Cambridge, MA 02139 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2003年 / 161卷 / 02期

关键词：

magic-echo; line narrowing; finite pulse errors; dipolar coupling; time-reversal;

D O I：

10.1016/S1090-7807(03)00010-7

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

We present improved line-narrowing sequences for dipolar coupled spin systems, based on a train of magic-echoes which are compensated for the effects of finite pulse widths and utilize symmetry properties of supercycles. Sequences are introduced for spectroscopy and imaging by proper choice of a phase alternating scheme. Using a 16 pulse time-suspension magic-echo cycle, the highest level of line-narrowing achieved was 2.7 Hz for the [100] direction of a single crystal of calcium fluoride, a reduction in linewidth by 4 orders of magnitude. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：132 / 137

页数：6

共 31 条

[1]

[Anonymous], ANN REP NMR SPECTROS

[2] ANALYSIS OF MULTIPLE PULSE NMR IN SOLIDS .3. [J].