Electron-impact dissociation and ionization of OH+ and OD+ ions

Belic, Dragoljub;Jureta, Jozo;Lecointre, Julien;Defrance, Pierre;Cherkani-Hassani, Hind;et.al.
(2012) European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics — Vol. 66, n° 8, p. 10 (2012)

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Authors
  • Belic, DragoljubUCLouvain
    Author
  • Jureta, JozoUCLouvain
    Author
  • Lecointre, JulienUCLouvain
    Author
  • Defrance, Pierreorcid-logoUCLouvain
    Author
  • Cherkani-Hassani, HindUCLouvain
    Collaborator
  • et. al.
Abstract
Absolute cross sections for electron impact ionization and dissociation of OH+ and OD+ leading to the formation of the OH2+, O+, O2+, O3+ and D+ ions have been measured by applying the animated electron-ion beam method in the energy range from the respective reaction thresholds up to 2.5 keV. The maximum of the single ionization cross section is found to be (0.95  ±  0.02) × 10-19 cm2 at 155 eV. The maximum total cross sections for O+ and D+ fragments production are observed to be (15.7  ±  0.2) × 10-17 cm2 at 95 eV and (10.8  ±  0.5) × 10-17 cm2 at 95 eV, respectively. The cross sections for O2+ and O3+ are much smaller, (5.37  ±  0.04) × 10-18 cm2 at 135 eV and (7.95  ±   0.23) × 10-20 cm2 at 315 eV, respectively. The collected data are analyzed in details in order to determine separately the contributions of dissociative excitation and of dissociative ionization to the O+ and D+ fragments production.
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Belic, D., Jureta, J., Lecointre, J., Defrance, P., & et al. (2012). Electron-impact dissociation and ionization of OH+ and OD+ ions. European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics, 66(8), 10. https://doi.org/10.1140/epjd/e2012-30064-x (Original work published 2012)