| 自旋I=3/2核四极共振体系对梳状脉冲的响应 |
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| 引用本文： | 李鲠颖.自旋I=3/2核四极共振体系对梳状脉冲的响应[J].物理学报,1996,45(4):681-688. |
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| 作者姓名： | 李鲠颖 |
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| 作者单位： | 华东师范大学分析测试中心,上海200062 |
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| 基金项目： | 上海市科学技术委员会“青年科技启明星重点培养计划”资助的课题 |
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| 摘 要： | 用密度矩阵理论和计算机模拟较详细地讨论了自旋I=3/2核四极共振(NQR)粉末体系对梳状脉冲的响应以及偏共振效应的影响.在偏共振强度(包括谱线的非均匀增宽)较小的条件下.由它获得的谱与二维章动谱是相似的.但是实验所需时间能够减少近两个数量级.
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| 关 键 词： | 核四极共振 核磁共振 梳状脉冲 NMR |
| 收稿时间： | 1994-12-20 |
RESPONSE OF A SPIN-3/2 NUCLEAR QUADRUPOLE RESONANCE SYSTEM TO COMB-PULSE TRAIN FOR POWDERED SAMPLES |
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| LI GENG-YING.RESPONSE OF A SPIN-3/2 NUCLEAR QUADRUPOLE RESONANCE SYSTEM TO COMB-PULSE TRAIN FOR POWDERED SAMPLES[J].Acta Physica Sinica,1996,45(4):681-688. |
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| Authors: | LI GENG-YING |
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| Abstract: | The response of an I=3/2 nuclear quadrupole resonance(NQR) system to a comb-pulse train is calculated by means of the density matrix theory and computer simulations. The influence of the off-resonance( including inhomogeneous line broadening) upon the comb-pulse NQR powder line shape is also discussed in detail. It was found that under the condition of small off-resonance, the comb-pulse NQR spectrum is analogous to that obtained with the two-dimensional nutation NQR technique, but the time required to perform the comb-pulse experiment is nearly two orders less than that required by the latter. |
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