Absolute Measurement of the Total Cross Section in 2 keV/u-10 keV/u D2+ + H Charge Transfer Collisions

被引：3

作者：

Andrianarijaona, V. M. ^{[1
]}

Wegley, L. M. ^{[2
]}

Watson, A. Z. ^{[1
]}

Andrianarijaona, M. ^{[1
]}

DeGuzman, C. P. ^{[1
]}

Kim, K. ^{[1
]}

Nuss, E. J. ^{[1
]}

Taylor, J. J. ^{[1
]}

Wilson, R. L. ^{[1
]}

Zhang, R. T. ^{[3
]}

Seely, D. G. ^{[2
]}

Havener, C. C. ^{[3
]}

机构：

[1] Pacific Union Coll, Dept Phys, Angwin, CA 94508 USA

[2] Albion Coll, Dept Phys, Albion, MI 49224 USA

[3] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

来源：

25TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY (CAARI 2018) | 2019年 / 2160卷

基金：

美国国家科学基金会;

关键词：

CHARGE-TRANSFER; COLLISIONS;

D O I：

10.1063/1.5127728

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ion-atom merged-beam apparatus at Oak Ridge National Laboratory in Oak Ridge, Tennessee has been successful in measuring absolute cross sections of charge transfer between atomic ions and hydrogen atoms for many years. Moreover, the first molecular ion measurements with the current version of the apparatus, performed for D-2(+) + H, are used to benchmark theory between 0.5 - 2 keV/u including vibrationally specific adiabatic theory for the (H2H)(+) complex, the most fundamental ion-molecule two-electron system. The absolute cross section of direct charge transfer in D-2(+) + H was measured with the merged-beam apparatus between 2.0 keV/u - 10 keV/u, and is presented here. The new measurements agree with McGrath et al. measurements at their lowest energy of 10 keV/u. These new measurements show that, besides the local maximum at 0.1 keV/u observed in our previous measurements, the absolute cross section also has a maximum around 2.2 keV/u, delineating an oscillation-like structure.

引用

页数：5

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