Ionization and electron capture for H+ collisions at low keV energy with a water-vapor target

被引：0
|
作者：
Legorreta, J. R. [1 ]
Lopez-Patino, J. [2 ]
Fuentes, B. E. [1 ]
Yousif, F. B. [2 ]
Martinez, H. [3 ]
机构：
[1] Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Fis, Mexico City, DF, Mexico
[2] Univ Autonoma Estado Morelos, Ctr Invest Ciencias, Inst Ciencias, Cuernavaca, Morelos, Mexico
[3] Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca, Morelos, Mexico
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2019年 / 446卷
关键词：
Experimental physics; Mass spectrometry; Ionization; Electron capture; Low energy collision physics; CROSS-SECTIONS; CHARGE-TRANSFER; H2O; FRAGMENTATION; HYDROGEN; PROTONS;
D O I：
10.1016/j.ijms.2019.116214
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
We have investigated the total relative ionization and dissociative electron capture cross section for proton collisions with water-vapor molecules within the energy range of 2.5-10 keV. Time of flight mass spectroscopy was employed in the measurements of the atomic and molecular singly charged particles H+, H-2(+), O+, OH+ and H2O+ as well as the doubly charged particles O++, H2O++, OH++, and the contribution of the different channels was evaluated. Ionization was found to be the dominant reaction channel as expected. The contribution of the singly charged particles was found to be one order of magnitude higher than that of the doubly charged particles. (C) 2019 Elsevier B.V. All rights reserved.
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页数：5
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