| He原子电子动量谱学实验结果的理论分析 |
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| 引用本文： | 徐向东 钱青. He原子电子动量谱学实验结果的理论分析[J]. 原子与分子物理学报, 1994, 11(4): 369-375 |
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| 作者姓名： | 徐向东 钱青 |
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| 作者单位： | 清华大学，北京现代应用物理系，北京电子动量谱学实验室 |
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| 基金项目： | 国家科委,国家自然科学基金 |
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| 摘 要： | 对作者所在实验室最近完成的Ｈｅ原子电子动量谱学实验结果进行了详细的理论分析。在平面波冲量近似和扭曲波冲量近似下，利用三类典型的Ｈｅ原子基态波函数，对Ｗｅｉｇｏｌｄ几何条件下的（ｅ，２ｅ）反应的三重微分截面进行了计算，并与实验结果作了详细的比较，结果表明Ｌ（１）电子动量谱学是直接获取电子波函数信息的有用方法；（２）平面波冲量近全民族 扭曲波冲量近似得到的电子动量谱形状的差别并不大。
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| 关 键 词： | 氦原子 电子动量谱学 反应 电子波函数 |
THEORETICAL ANALYSIS FOR EXPERIMENTAL RESULTS OF ELECTRON MOMENTUM SPECTROSCOPY OF HELIUM |
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| Xu Xjangdong, Qian Qiang, Li Bo, Wang Yan, Chen Xuejun. THEORETICAL ANALYSIS FOR EXPERIMENTAL RESULTS OF ELECTRON MOMENTUM SPECTROSCOPY OF HELIUM[J]. Journal of Atomic and Molecular Physics, 1994, 11(4): 369-375 |
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| Authors: | Xu Xjangdong Qian Qiang Li Bo Wang Yan Chen Xuejun |
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| Abstract: | A detailed theoretical analysis is reported for the recent experimental resultS of electron momentum spectroscopy of Helium in our laboratory.Within plane wave impulse approximation (PWLA) and distorted wave impulse opproximation(DWIA) and using three kinds of ground state wave functions of Helium, the triple differential cross sections of (e, 2e) reactions under Weigold geometric conditions have been calculated. The results are compared with our experimental data in detail. It is shown that the election momentum spectroscopy is an useful method for obtaining wave function informations of atomic electrons and the electron momentum profiles obtained by PWIA and DWIA are almost the same. |
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| Keywords: | Helium atom Electron momentum spectroscopy (e 2e) reaction |
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