Electron-impact dissociation of N2D+ cations to D+ fragments
(2020) The European Physical Journal D — Vol. 74, n° 5 (2020)
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- Authors
Belic, Dragoljub S. 
Defrance, Pierre
- Abstract
- Absolute cross sections for electron-impact dissociation of N2D+ cations to the light D+ fragments are reported for the first time. The animated electron-ion crossed-beam method is applied in the energy range from thresholds up to 2 keV. The heavy N+2 fragments are also detected and their kinetic energy distribution is analyzed at a selected electron energy. The measured cross-sections are corrected for incomplete collection of the light D+ fragments by performing careful analyser magnetic field scan together with a Monte-Carlo procedure. Inclusive absolute cross sections are determined. Dissociative excitation (DE) and dissociative ionization (DI) contributions are separated and the corresponding partial cross sections for D+ fragment production are determined at selected electron energies. The inclusive cross section for D+ fragment production has a maximum of (87±7)x10−18 cm2, at 95.1 eV, with the dominant contribution from the DI process.
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Citations
Belic, D. S., Ristic, M. M., Cherkani-Hassani, H., Urbain, X., & Defrance, P. (2020). Electron-impact dissociation of N2D+ cations to D+ fragments. The European Physical Journal D, 74(5). https://doi.org/10.1140/epjd/e2020-100623-1 (Original work published 2020)