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  • Vinko, S. M., et al. (författare)
  • Electronic Structure of an XUV Photogenerated Solid-Density Aluminum Plasma
  • 2010
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 104:22, s. 225001-
  • Tidskriftsartikel (refereegranskat)abstract
    • By use of high intensity XUV radiation from the FLASH free-electron laser at DESY, we have created highly excited exotic states of matter in solid-density aluminum samples. The XUV intensity is sufficiently high to excite an inner-shell electron from a large fraction of the atoms in the focal region. We show that soft-x-ray emission spectroscopy measurements reveal the electronic temperature and density of this highly excited system immediately after the excitation pulse, with detailed calculations of the electronic structure, based on finite-temperature density functional theory, in good agreement with the experimental results.
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3.
  • Morishita, Y., et al. (författare)
  • Direct observation of the initial-state distribution of the first electron transferred to slow highly charged ions interacting with a metal surface
  • 2004
  • Ingår i: Physical Review A (Atomic, Molecular and Optical Physics). - 1050-2947. ; 70:1
  • Tidskriftsartikel (refereegranskat)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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  • Resultat 1-4 av 4

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