Electron impact ionization of neon and neonic ions under distorted-wave Born approximation

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 d...

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Bibliographic Details
Published inChinese physics B Vol. 23; no. 5; pp. 249 - 252
Main Author 周丽霞 燕友果
Format Journal Article
LanguageEnglish
Published 01.05.2014
Subjects
Angles (geometry)
Born approximation
Charge
Collision dynamics
Distortion
Ionization
Mathematical analysis
Neon
三重微分截面
扭曲波玻恩近似
核电荷数
电子碰撞电离
离子
计算结果
近似计算
霓虹灯
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/23/5/053402

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Summary: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° 〈 θ2 〈 120°. Three kinds of collision processes are proposed to illustrate the formation mechanism of such collision peaks.
Bibliography: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° 〈 θ2 〈 120°. Three kinds of collision processes are proposed to illustrate the formation mechanism of such collision peaks.
（e, 2e） reaction, distorted-wave Born approximation, triple differential cross sections
Zhou Li-Xia,Yan You-Guo（ College of Science, China University of Petroleum, Qingdao 266580, China）
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/5/053402