| 粉末样品中自旋3/2核体系中心跃迁的布居数反转 |
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| 引用本文： | 李鲠颖,邬学文.粉末样品中自旋3/2核体系中心跃迁的布居数反转[J].波谱学杂志,1990,7(1):17-24. |
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| 作者姓名： | 李鲠颖 邬学文 |
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| 作者单位： | 华东师范大学物理系, 上海 |
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| 摘 要： | 在有限脉冲宽度条件下,本文利用矢量模型与计算机模拟设计了一个组合180°脉冲:45°x112.5°y45°x,可以均匀地将自旋I=3/2核体系中心跃迁的布居数反转。并且用数值计算方法对该组合180°脉冲的布居数反转效果进行了分析。实验上用Na2SO4粉末样品进行了验证。
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| 关 键 词： | 粉末样品 四极核中心跃迁 布居数反转 |
| 收稿时间： | 1988-10-15 |
POPULATION INVERSION OF THE CENTRAL TRANSITION OF SPIN-3/2 NUCLEAR SYSTEMS IN POWDER SAMPLES |
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| Li Gengying and Wu Xuewen.POPULATION INVERSION OF THE CENTRAL TRANSITION OF SPIN-3/2 NUCLEAR SYSTEMS IN POWDER SAMPLES[J].Chinese Journal of Magnetic Resonance,1990,7(1):17-24. |
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| Authors: | Li Gengying and Wu Xuewen |
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| Institution: | Department of Physics, East China Normal University, Shanghai |
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| Abstract: | Under the condition of finite pulse width, using a vector model and computer simulation, the present paper proposed a composite 180° pulse:45°x 112. 5°y 45°x, for uniform population inversion in the central transition of spin-3/2 nuclear systems. And the performance of population inversion of the composite 180° pulse was obtained by numerical calculation and confirmed by experimental results of 23Na NMR spectra in Na2SO4 powder sample. |
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| Keywords: | Powder sample Central transition of quadrupolar nucleus Population inversion |
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