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- Morishita, Y., et al.
(author)
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Direct observation of the initial-state distribution of the first electron transferred to slow highly charged ions interacting with a metal surface
- 2004
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In: Physical Review A (Atomic, Molecular and Optical Physics). - 1050-2947. ; 70:1
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Journal article (peer-reviewed)abstract
- The electron transfer process in the interaction of a slow highlycharged ion with a metal surface has been studied employing amicrocapillary foil as a target. The combination of the target and avisible light spectroscopy allows us to directly evaluate the initial(n,ℓ) distributions of the first transferred electrons. It wasfound that observed lines were primarily attributed to Δn=1transitions with relatively high angular momenta ( ℓi≳4 ) . A cascade analysis revealed that the electron is selectivelytransferred to n≈ qin +1 states with a narrowdistribution width of δn≈2 (full width at half maximum). Theaverage initial principal quantum number is consistent with theprediction of the classical over-barrier model.
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2. |
- Morishita, Y, et al.
(author)
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Visible light spectroscopy of Ar6+ ions in high Rydberg states produced with a microcapillary target
- 2003
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In: Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. - 0168-583X. ; 205, s. 758-761
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Journal article (peer-reviewed)abstract
- We have observed photons in the visible light range emitted from slow (2.0 keV/amu) highly charged Ar6+ ions which have captured one electron and transmitted through a Ni microcapillary target. Observed lines were identified by comparing with an ab initio calculation based on the multi-configuration Hartree-Fock method. (C) 2003 Elsevier Science B.V. All rights reserved.
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