Calculation of coherence pathway selection and cogwheel cycles

被引：34

作者：

Jerschow, A ^{[1
]}

Kumar, R ^{[1
]}

机构：

[1] NYU, Dept Chem, New York, NY 10003 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2003年 / 160卷 / 01期

关键词：

coherence pathways; cogwheel phase cycles; MQMAS; pulsed field gradients; quadrupolar nuclei; diffusion measurements;

D O I：

10.1016/S1090-7807(02)00031-9

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The selection of proper coherence pathways is a very important aspect of the design of NMR pulse sequences. This article describes a C++ program for the calculation of coherence pathway selection via phase cycles, including a module to calculate cogwheel cycles. Cogwheel phase cycles shorter than the original ones [M.H. Levitt et al., J. Magn. Reson. 155 (2002) 300] are derived and experimentally tested for the MQMAS experiment for 3/2 spins. Some other cogwheel cycles are derived for the MQNQMAS, the STMAS experiment, and a PFG diffusion pulse sequence. This program is publicly available through our website http://www.nyu.edu/projects/jerschow with additional documentation and examples. (C) 2002 Elsevier Science (USA). All rights reserved.

引用

页码：59 / 64

页数：6

共 27 条

[1] Satellite-transition MAS NMR of spin I=3/2, 5/2, 7/2, and 9/2 nuclei: Sensitivity, resolution, and practical implementation [J].