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Sökning: WFRF:(Vikor György)

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1.
  • Schuch, Reinhold, et al. (författare)
  • Guiding of highly charged ions through insulating nanocapillaries
  • 2008
  • Ingår i: Canadian journal of physics (Print). - 0008-4204 .- 1208-6045. ; 86:1, s. 327-330
  • Tidskriftsartikel (refereegranskat)abstract
    • The guiding of highly charged ions through nanocapillaries in different insulating materials, such as polyethylene terephthalate, SiO2, and Al2O3 has been investigated by our group, using 7 keV Ne7+ ions. We find transmission of ions incident at angles larger than the angle given by the capillary aspect ratio in all these materials. The measured angular distributions, however, vary with the membrane material. In this report we compare the experimental findings with the different membranes.
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2.
  • Lindroth, Eva, et al. (författare)
  • QED effects in Cu-like Pb recombination resonances near threshold
  • 2001
  • Ingår i: Physical Review Letters. - 0031-9007. ; 86:22, s. 5027-5030
  • Tidskriftsartikel (refereegranskat)abstract
    • In an electron-ion recombination study with Pb53+ dielectronic recombination resonances are found for as low as similar to 10(-3)-10(-4) eV relative energy. The resonances have been calculated by relativistic many-body perturbation theory and through comparison with experiment the Pb53+(4p(1/2)-4s(1/2)) energy splitting of similar to 118 eV is determined with an accuracy comparable to the position of the first few resonances, i.e., similar to 10(-3) eV. Such a precision provides a test of QED in a many-body environment at a level which can still not be reached in calculations.
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