Cross sections for electron capture and loss by H+ and H impact on O and O2

被引：2

作者：

Van Zyl, B. ^{[1
]}

Stephen, T. M. ^{[1
]}

机构：

[1] Univ Denver, Dept Phys, Denver, CO 80208 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2014年 / 119卷 / 08期

基金：

美国国家科学基金会;

关键词：

AURORAL PROTON PRECIPITATION; CHARGE-EXCHANGE; ATOMIC OXYGEN; DISSOCIATIVE IONIZATION; HYDROGEN-ATOMS; COLLISIONS; IONS; EXCITATION; THRESHOLD; MOLECULES;

D O I：

10.1002/2014JA019909

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Projectile-charge-changing cross sections for electron capture by H+ and H collisions with O atoms and electron loss by H collisions with O atoms have been determined. The H+ and H energies ranged from 2.0 down to 0.125 keV. The cross-beam technique involved measuring the cross-section ratios for reactions with O-atom targets to those for O-2 targets. The O-atom-target cross sections were then obtained by normalizing these ratios to previously measured O-2-target cross sections. The experimental apparatus employed is described, and the measured results are compared with other available data.

引用

页数：15

共 45 条

[1] ION-PAIR FORMATION IN H, D + AR, KR, XE COLLISIONS FROM THRESHOLD TO 100 EV [J].