DANTE 脉 冲 序 列 的 改 进

DANTE 脉冲序列的改进

许峰¹，刘玉林², 黄永仁³

1. 安徽理工大学数理系, 淮南 232001； 2. 安徽理工大学化工系, 淮南 232001; 3. 教育部光谱学与波谱学重点实验室，华东师范大学物理系, 上海 200062

收稿日期:2002-01-31 修回日期:1900-01-01 出版日期:2002-07-26 发布日期:2002-07-26
通讯作者: 许峰

Improvement on DANTE Pulse Sequence

XU Feng¹, LIU Yu-lin²，HUANG Yong-ren³

1. Department of Mathematics and Physics, Anhui University of Scien ce and Technology, Huainan 232001, China; 2. Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China 3.Key Laboratory for Optical and Magnetic Resonance Spectroscopy, East China Normal University,Shanghai 200062, China

Received:2002-01-31 Revised:1900-01-01 Online:2002-07-26 Published:2002-07-26
Contact: XU Feng

摘要/Abstract

摘要： 根据Bloch方程的解析解对DANTE脉冲序列进行计算机模拟. 模拟结果表明，脉冲序列首尾两个脉冲对激发频谱边瓣的影响最大，将首尾两个脉冲的宽度减小一半，可在一定程度上减小激发频谱的边瓣. 通过实验比较了DANTE脉冲序列与首尾减半DANTE脉冲序列对溶剂峰的抑制，所得结果与模拟结果基本吻合.

关键词: 核磁共振, DANTE脉冲序列, Bloch方程, 边瓣抑制

Abstract: The frequency domain profiles of DANTE pulse sequence are calculated according to the analytical solutions of Bloch equations. The results show that the first and the last pulses of pulse sequence show the biggest e ffects on the side band. If the widths of the first and the last pulses are redu ced to one half, the side band can be suppressed to a great extent. The correspo nding experimental results coincide well with the above conclusion.

Key words: NMR, DANTE pulse sequence, Bloch equations, suppression of side band

中图分类号:

O456

许峰，刘玉林, 黄永仁. DANTE 脉冲序列的改进[J]. J4, 2002, 40(03): 290-293.

XU Feng, LIU Yu-lin，HUANG Yong-ren. Improvement on DANTE Pulse Sequence[J]. J4, 2002, 40(03): 290-293.

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