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    • Absolute cross sections and kinetic energy release distributions for electron-impact dissociative excitation and ionization of NeD+Peer reviewedClosed access 

      2008, LECOINTRE, Julien; Jureta, J.J.; Mitchell, J. B. A.; Ngassam, V.; Orel, A. E.; Defrance, P., HENALLUX
      Article scientifique
      Absolute cross sections for electron impact dissociative excitation and ionization of NeD+ leading to the formation of singly and multiply charged products (D+, Ne+, Ne2+ and Ne3+) are reported, in the energy range from their respective thresholds to 2.5 keV. The animated crossed-beams method is used. For singly charged fragments, absolute cross sections are obtained separately for dissociative ...

    • Dissociative excitation of NeD+Peer reviewedClosed access 

      2009, LECOINTRE, Julien; Ngassam, V.; Jureta, J.J.; Mitchell, J. B. A.; Orel, A. E.; Defrance, P., HENALLUX
      Article scientifique
      Measurements of NeD+ dissociative excitation cross section were obtained in Louvain-la-Neuve (UCL, Belgium) by using the animated crossed electron-ion beam method. The electronic structure of the system was calculated by using quantum chemistry calculations for the NeD+ ion and ab initio electron scattering calculations using the complex Kohn variational method for the resonant NeD neutral complex ...

    • Electron-impact dissociation and ionization of NH+: formation of N+ and N2+Peer reviewedClosed access 

      2010, LECOINTRE, Julien; Jureta, J.J.; Defrance, P., HENALLUX
      Article scientifique
      Absolute cross sections for electron-impact dissociation and ionization of NH+ leading to the formation of N+ and N2+ products have been measured by applying the animated electron–ion beam method, in the energy range from the respective thresholds up to 2.5 keV. The maximum total cross sections are observed to be (15.7 ± 0.7) × 10−17 cm2 and (11.1 ± 0.2) × 10−18 cm2 for N+ and N2+, respectively. ...

    • Electron-impact dissociative ionization of the molecular ion HDO + : A global viewPeer reviewedClosed access 

      2014, LECOINTRE, Julien; Defrance, P.; Jureta, J.J.; Giglio, E.; Gervais, B.; Dal Cappello, C.; Ruiz-Lopez, M.; Charpentier, I.; Hervieux, P.-A., HENALLUX
      Article scientifique
      We present a combined experimental and theoretical study of the fragmentation of HDO2+ molecular ions produced by electron-impact ionization of HDO+ in the collision energy range 20–2500 eV. Experimental absolute partial inclusive cross sections for the production of OD+, OH+, and O+ are reported and compared successfully to theoretical predictions. Ab initio methods are used to calculate the ...

    • Electron-impact ionization of singly-charged neon ionsPeer reviewedClosed access 

      2008, LECOINTRE, Julien; Jureta, J.J.; Defrance, P., HENALLUX
      Article scientifique
      Absolute cross sections for electron-impact single and multiple ionization of Ne+ leading to the formation of Neq+ (q = 2–5) are reported. The animated crossed beams method is applied in the energy range from the respective thresholds up to 2.5 keV. The maximum cross sections are found to be (4.12 ± 0.21) × 10−17 cm2, (1.42 ± 0.07) × 1018 cm2, (2.57 ± 0.14) × 10−20 cm2, (8.78 ± 0.54) × 10−22 cm2 for ...

    • Screening effects and total cross sections of single, double and triple ionization of neon by fast electronsPeer reviewedClosed access 

      2008, LECOINTRE, Julien; Defrance, P.; Jureta, J.J.; Kereselidze, T.; Machavariani, Z.S., HENALLUX
      Article scientifique
      The Bethe–Born theory is applied to estimate the effective charges experienced by the ejected electrons at single, double and triple ionization of neon by fast electrons. The expansion coefficients appearing in the asymptotic expressions for total cross sections σn+ ~ [an+ln(Ei/In+) + bn+]/Ei are determined by fitting to these expressions the experimental data for single and multiple ionization of ...