Collisions of ionized hydrogen clusters with helium atoms: electron capture as a function of the cluster size
In: Nuclear Instruments and Methods in Physics Research B Workshop on Fast-Ion-Atom-Collisions-FIAC 7 Workshop on Fast-Ion-Atom-Collisions-FIAC 7, Sep 1998, Debrecen, Hungary. pp.312-317, ⟨10.1016/S0168-583X(99)00004-X⟩; (1998-09-09)
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Zugriff:
IPM; International audience; Electron capture cross sections of hydrogen cluster ions Hn+ colliding with atomic helium have been measured in a large range of cluster size (5⩽n⩽35) for the same velocity (1.5v0, 60 keV/u). While the electron capture cross section decreases from the H+ ion to the H3+ one, the cluster electron capture cross section is found to be independent of the cluster size and nearly equal to the capture cross section of the H3+ ion. Electron capture by hydrogen clusters on a helium atom is a process involving only the H3+ core of the cluster where the positive charge is localized. It appears that this very localized electron capture is not disturbed by the presence of molecules, up to sixteen, around the H3+ core.
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Collisions of ionized hydrogen clusters with helium atoms: electron capture as a function of the cluster size
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| Autor/in / Beteiligte Person: | Jalbert, Ginette ; Louc, S. ; Bacchus-Montabonel, M. C. ; Gonçalves, N. ; Carré, M. ; N. V. de Castro Faria ; Luna, H. ; Buchet, J. P. ; Farizon, Bernadette ; Gaillard, M.J. ; Farizon, Michel ; Institut de Physique Nucléaire de Lyon (IPNL) ; Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3) ; Department of Biology and Environmental Science ; Department of Molecular Neurobiology ; Institute for Molecular and Cell Biology ; Instituto de Ciências Biomédicas de Abel Salazar (ICBAS) ; Universidade do Porto ; Departamento de Ciência da Computação [Minas Gerais] (DCC - UFMG) ; Universidade Federal de Minas Gerais [Belo Horizonte] (UFMG) ; Service de Cardiologie (HIA BREST - Cardio) ; HIA -, BREST ; Université Pierre et Marie Curie - Paris 6 - UFR de Médecine Pierre et Marie Curie (UPMC) ; Université Pierre et Marie Curie - Paris 6 (UPMC) ; Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) ; Universidade do Porto = University of Porto |
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| Quelle: | Nuclear Instruments and Methods in Physics Research B Workshop on Fast-Ion-Atom-Collisions-FIAC 7 Workshop on Fast-Ion-Atom-Collisions-FIAC 7, Sep 1998, Debrecen, Hungary. pp.312-317, ⟨10.1016/S0168-583X(99)00004-X⟩; (1998-09-09) |
| Veröffentlichung: | HAL CCSD, 1998 |
| Medientyp: | unknown |
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