| Post-collision interactions and the polarization effect in （e, 2e） collisions of helium |
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| 引用本文： | 臧爽爽,葛自明.Post-collision interactions and the polarization effect in （e, 2e） collisions of helium[J].中国物理 B,2012(7):280-284. |
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| 作者姓名： | 臧爽爽 葛自明 |
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| 作者单位： | Department of Physics, East China University of Science and Technology, Shanghai 200237, China |
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| 摘 要： | A modified distorted-wave Born approximation (DWBA) method is used to calculate the triple differential cross sections (TDCSs) in a coplanar asymmetric geometry for the electron impact single ionization of a He (1s2) atom at intermediate and lower energies. The post-collision interaction and the polarization effect in (e, 2e) collisions of helium are considered in the calculations. The polarization potentials from the damping method and density functional theory (DFT) are compared. Theoretical results are compared with the recent experimental data.
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| 关 键 词： | post collision interactions polarization potential density-functional theory (DFT) distorted wave Born approximation (DWBA) |
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