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Proceedings Paper

Absolute state-selected cross sections measurements for ion-molecule reactions involving O+(4S, 2D, 2P)
Author(s): Xiaochun Li; S. Stimson; G. D. Flesch; Cheuk Yiu Ng
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Paper Abstract

Significant technical advances have been made in the application of the triple-quadrupole double-octopole mass spectrometer for absolute total state-selected cross section measurements of ion-molecule reactions involving O+(4S degree(s), 2D degree(s), 2P degree(s)). By controlling the collision energies for dissociative charge transfer collisions of He+ (Ne+, Ar+) plus O2 in a radio frequency (rf) octopole ion guide gas cell, and by applying appropriate effective ion trapping potentials to the rf octopole ion guide, we have demonstrated that state-selected O+(4S degree(s)), O+(2D degree(s)), and O+(2P degree(s)) reactant ion beams with high purities and usable intensities can be prepared for scattering experiments.

Paper Details

Date Published: 18 September 1995
PDF: 9 pages
Proc. SPIE 2548, Laser Techniques for State-Selected and State-to-State Chemistry III, (18 September 1995); doi: 10.1117/12.220858
Show Author Affiliations
Xiaochun Li, Iowa State Univ. (United States)
S. Stimson, Iowa State Univ. (United States)
G. D. Flesch, Iowa State Univ. (United States)
Cheuk Yiu Ng, Iowa State Univ. (United States)


Published in SPIE Proceedings Vol. 2548:
Laser Techniques for State-Selected and State-to-State Chemistry III
John W. Hepburn, Editor(s)

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