Dissociative ionization cross sections of CO2 at electron impact energy of 5 keV

doi:10.1088/1674-1056/23/11/113404

中国物理B ›› 2014, Vol. 23 ›› Issue (11): 113404-113404.doi: 10.1088/1674-1056/23/11/113404

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Dissociative ionization cross sections of CO₂ at electron impact energy of 5 keV

王恩亮, 沈镇捷, 阳弘江, 唐亚国, 单旭, 陈向军

Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

收稿日期:2014-04-09 修回日期:2014-05-13 出版日期:2014-11-15 发布日期:2014-11-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2010CB923301), the National Natural Science Foundation of China (Grant Nos. 11327404, 10979007, and 10734040), and the Fundamental Research Funds for the Central Universities, China.

Dissociative ionization cross sections of CO₂ at electron impact energy of 5 keV

Wang En-Liang (王恩亮), Shen Zhen-Jie (沈镇捷), Yang Hong-Jiang (阳弘江), Tang Ya-Guo (唐亚国), Shan Xu (单旭), Chen Xiang-Jun (陈向军)

Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

Received:2014-04-09 Revised:2014-05-13 Online:2014-11-15 Published:2014-11-15
Contact: Wang En-Liang E-mail:elwang@ustc.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2010CB923301), the National Natural Science Foundation of China (Grant Nos. 11327404, 10979007, and 10734040), and the Fundamental Research Funds for the Central Universities, China.

摘要/Abstract

摘要：

The dissociative ionization of CO₂ induced by 5 keV electrons in two-body and three-body dissociative channels of CO₂²⁺ and CO₂³⁺ is identified by the ion-ion coincidence- method using a momentum imaging spectrometer. The partial ionization cross sections (PICSs) of different ionic fragments are measured and the results generally agree with the calculations made by a semi-empirical approach. Furthermore, the PICSs of the dissociative channels are also obtained by carefully considering the detection efficiency of the micro-channel plates and the total transmission efficiency of the time of flight system.

关键词: electron collision, partial ionization cross section, dissociative ionization cross section, momentum imaging

Abstract:

Key words: electron collision, partial ionization cross section, dissociative ionization cross section, momentum imaging

中图分类号: (Molecular excitation and ionization)

34.80.Gs

34.80.Ht (Dissociation and dissociative attachment)

王恩亮, 沈镇捷, 阳弘江, 唐亚国, 单旭, 陈向军. Dissociative ionization cross sections of CO₂ at electron impact energy of 5 keV[J]. 中国物理B, 2014, 23(11): 113404-113404.

Wang En-Liang (王恩亮), Shen Zhen-Jie (沈镇捷), Yang Hong-Jiang (阳弘江), Tang Ya-Guo (唐亚国), Shan Xu (单旭), Chen Xiang-Jun (陈向军). Dissociative ionization cross sections of CO₂ at electron impact energy of 5 keV[J]. Chin. Phys. B, 2014, 23(11): 113404-113404.

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Dissociative ionization cross sections of CO₂ at electron impact energy of 5 keV

Dissociative ionization cross sections of CO₂ at electron impact energy of 5 keV

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