CDW-EIS calculation for ionization and fragmentation of methane impacted by fast protons

被引：23

作者：

Gulyas, L. ^{[1
]}

Toth, I. ^{[2
]}

Nagy, L. ^{[2
]}

机构：

[1] Hungarian Acad Sci ATOMKI, Inst Nucl Res, H-4001 Debrecen, Hungary

[2] Univ Babes Bolyai, Fac Phys, RO-400084 Cluj Napoca, Romania

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2013年 / 46卷 / 07期

关键词：

CROSS-SECTIONS; ELECTRON-IMPACT; ION IMPACT; COLLISIONS; APPROXIMATION; CH4; DEPENDENCE; MOLECULES; CHARGE;

D O I：

10.1088/0953-4075/46/7/075201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ionization of the CH4 molecule in collision with energetic protons has been investigated by applying the continuum distorted wave with eikonal initial state approximation extended for multi-centre collisions. Total and double differential net and q-fold ionization cross sections have been evaluated which show good agreement with experimental data. Electron distribution characteristics to the structure of the molecule have been revealed in the impact parameter dependence of ionization probabilities. Dissociation of the molecule has also been considered. Present results for the production of CHn+ ions (n = 1-4) are in good agreement with the available experimental data.

引用

页数：9

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