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Electron impact ionization of neon and neonic ions under distorted-wave Born approximation |
| Zhou Li-Xia (周丽霞), Yan You-Guo (燕友果) |
| College of Science, China University of Petroleum, Qingdao 266580, China |
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Abstract The (e, 2e) triple differential cross sections of 2s orbitals of neon and neonic ions (Z=11-14) are calculated using a distorted-wave Born approximation under coplanar asymmetric geometry. The calculated results show that, with the increase in the nuclear charge number Z, the amplitude of triple differential cross sections decreases. The angle difference between the binary peak position and the direction of momentum transfer gradually increases with the increase in the nuclear charge Z, and a new structure appears at an ejected angle 90°<θ 2<120°. Three kinds of collision processes are proposed to illustrate the formation mechanism of such collision peaks.
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Received: 28 June 2013
Revised: 23 October 2013
Accepted manuscript online:
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PACS:
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34.80.Dp
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(Atomic excitation and ionization)
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34.50.Fa
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(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
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| Fund: Project supported by the Fundamental Research Funds for the Central University of China (Grant No. 13CX02019A). |
Corresponding Authors:
Zhou Li-Xia
E-mail: zhoulx@upc.edu.cn
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| About author: 34.80.Dp; 34.50.Fa |
Cite this article:
Zhou Li-Xia (周丽霞), Yan You-Guo (燕友果) Electron impact ionization of neon and neonic ions under distorted-wave Born approximation 2014 Chin. Phys. B 23 053402
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