| 谱-空间2D ESR成像 |
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| 引用本文： | 郑莹光,许静,董凤霞,沈尔中,徐玉书.谱-空间2D ESR成像[J].波谱学杂志,2005,22(1):27-33. |
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| 作者姓名： | 郑莹光 许静 董凤霞 沈尔中 徐玉书 |
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| 作者单位： | 吉林大学 1.测试科学实验中心；2.原子与分子物理所；3.理化所，吉林长春 130023 |
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| 摘 要： | 在Bruker ER 200D ESR 谱仪上安装一套自制的谱-空间2D ESR成像系统，这套系统由一对梯度场线圈、电源、微机及图像重建程序组成. 用滤波反投影图像重建方法，实现了两种自由基样品的谱-空间2D ESR成像，由2D 图像得到样品中自由基的自旋密度空间分布及相应的波谱参数. 讨论了成像参数与图像精度的关系.
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| 关 键 词： | ESR 谱-空间成像 自由基 自旋密度 梯度场 |
| 文章编号： | 1000-4556(2005)01-0027-07 |
| 收稿时间： | 2004-07-05 |
| 修稿时间： | 2004年7月5日 |
Spectral-Spatial Two-Dimensional ESR Imaging |
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| ZHENG Ying-guang,XU Jing,DONG Feng-xia,SHEN Er-zhong,XU Yu-shu.Spectral-Spatial Two-Dimensional ESR Imaging[J].Chinese Journal of Magnetic Resonance,2005,22(1):27-33. |
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| Authors: | ZHENG Ying-guang XU Jing DONG Feng-xia SHEN Er-zhong XU Yu-shu |
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| Institution: | Jilin University, Changchun, 130023, China |
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| Abstract: | A spectral-spatial 2D ESR imaging system was installed on a Bruker ER 200 D ESR spectrometer It consists of a pair of field gradient coils, power supplies and a computer system used for image reconstruction Spectral-spatial 2D ESR imaging was performed on several free radical samples using the filtered back-projection method The spatial distribution of the spin densities of the free radicals and the corresponding spectral parameters were acquired simultaneously from the 2D images The relationship between the imaging parameters and the accuracy of the images was discussed |
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| Keywords: | ESR |
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