Détermination des processus de création des ions H+2, H+3, D+2 et D+ 3 créés lors d'une interaction (He*[23S, 21S], Ne*[3P0, 3P2])- (H2, D2) par étude de leur énergie cinétique

Study of He*/Ne*+Ar, Kr, N2, H2, D2 Chemi-Ionization Reactions by Electron Velocity-Map Imaging

“…Similarly, the RI product NeH + can only be formed for complexes having the molecular ion in v ⩾ 3. In addition, Tuffin et al measured the kinetic energy of the ions and found that it is ∼50 meV larger than the relative kinetic energy of the collision partners . When [Ne–H 2 ] + is formed having the molecular ion in a vibrationally excited state, vibrational energy is converted into translational energy of the forming Penning ions.…”

“…It has been demonstrated, through energy-dependent cross-section measurements, that PI remains the dominant channel even at a low-collision energy. , At the same time, many theoretical studies were also reported that aim to model the interaction potential. , Both the experimental and theoretical studies have also been extended to the isotopologues D 2 and HD. In the case of Ne*+H 2 fewer experimental studies are available. − The energy dependence of the ionization cross section has been reported, and also elastic and inelastic differential cross sections were measured in a crossed molecular beams experiment . Early PIES experiments were performed by Hotop et al The total and partial ionization cross sections were measured by Brunetti et al in crossed beams .…”

Etude des mécanismes d'ionisation de H2O par interaction He*(2 1S, 2 3S)/Ne*(3P0, 3P2)+H2O

“…Une premiAre sdrie d'dtudes rialisies sur CO iii, N2 [2], H2 [3] en mesurant l'Anergie des ilectrons ijectis nous a permis de priciser en particulier l'itat quantique des ions CD+, N), H) criis. Nous avons ensuite itudii CD2 [4,5,7] et CD [6], et montri, par une analyse conjointe de l'inergie des ilectrons djectis et des ions criis, la voie dlectronique par Yee [8], Cermak [9], Ohno [10], Haug [iii, et par notre laboratoire [12].…”