Transfer-excitation processes in collisions of N{sup 3+} ions with H{sub 2}, He, Ne, and Ar targets

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.54.1452· OSTI ID:286624

Kamber, E Y; Akguengoer, K ^[1]; Leather, C; Brenton, A G ^[2]

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1. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008-5151 (United States)
2. Mass Spectrometry Research Unit, University of Wales Swansea, Swansea SA28PP (United Kingdom)

High-resolution translational energy-gain spectra for single-electron capture by N{sup 3+} ions from H{sub 2}, He, Ne, and Ar have been measured experimentally at laboratory impact energies of 6, 9, 12, and 15 keV. For N{sup 3+}-He and Ne collisions, transfer excitation into the 2{ital s}2{ital p}{sup 2} state of N{sup 2+} is significantly populated, while in N{sup 3+}-H{sub 2} collisions, transfer excitation into the 2{ital s}2{ital p}{sup 2}{sup 2}{ital P} state dominates at low energies. In N{sup 3+}-Ar collisions, pure single-electron capture into 3{ital s} is selectively populated. In all the collision systems studied here, contributions from processes commencing with a long-lived metastable state of N{sup 3+}{bold (}2{ital s}({sup 2}{ital S})2{ital p}{sup 3}{ital P}{bold )} are detected. The translational energy-gain spectra are interpreted qualitatively in terms of the reaction windows, which are calculated using the single-crossing Landau-Zener model and the extended version of the classical over-the-barrier model. Total cross sections for single-electron capture for N{sup 3+} ions colliding with He and H{sub 2} are also measured and compared with available measurements and theoretical calculations. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286624
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 54; ISSN PLRAAN; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ARGON
CHARGE-EXCHANGE INTERACTIONS
ELECTRON CAPTURE
ENERGY SPECTRA
EV RANGE 01-10
EV RANGE 10-100
HELIUM
HYDROGEN
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
LANDAU-ZENER FORMULA
MULTICHARGED IONS
NEON
NITROGEN IONS