Anisotropy effects in electron capture by O6+ from aligned Na*(3p)

Stefan Schippers, A.r. Schlatmann, W.P. Wiersema, R Hoekstra, R Morgenstern, R.E. Olson, J. Pascale

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We report results of one electron capture by highly charged ions colliding with laser excited aligned Na*(3p). The 0 vi(10-->8) photon emission cross section after electron capture by the O6+ projectile is measured in the collision energy range 2-8 keV/amu. Effects of the Na*(3p) orbital alignment on the O VI(10-->8) emission are observed and found to be ''reversed'' as compared to the He2+ --> Na*(3p) collision system. Classical trajectory Monte Carlo calculations agree with the measured data and indicate that capture to states with n > 10, contributing to the O VI(10-->8) emission via cascades, plays a crucial role in the alignment cross sections.

Original languageEnglish
Pages (from-to)1628-1631
Number of pages4
JournalPhysical Review Letters
Issue number11
Publication statusPublished - 14-Mar-1994



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