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A: Fachverband Atomphysik

A 26: Electron Scattering and Recombination / Interaction of Matter with Ions (with MO)

A 26.6: Vortrag

Freitag, 12. März 2010, 12:15–12:30, B 302

Measuring recoil ion momenta with high precision — •Simone Götz¹, Christoph S. Hofmann¹, Terry Mullins², Matthias Weidemüller¹, Alexey Sokolov³, Wolfgang Quint², and Thomas Amthor¹ — ¹Universität Heidelberg, Philosophenweg 12, 69210 Heidelberg — ²Universität Freiburg, Hermann-Herder Str. 3, 79104 Freiburg — ³GSI Helholtzzentrum für Schwerionenforschung GmbH, Darmstadt

We present a transportable setup combining a dark SPOT (spontaneous optical trap) for Rubidium atoms with a recoil ion momentum spectrometer [1]. The very low thermal spread of the atoms in the trap, allows to measure the atom recoil momenta after interaction with photons or highly charged ions with very high precision. In collaboration with the GSI in Darmstadt we will investigate correlation effects in multiple charge transfer between the Rubidium atoms and highly charged ions.
In addition to the recoil ion momentum spectrometer with high resolution we discuss several other improvements of our setup, including enhanced optical access and a new mechanism for efficient loading of the magneto-optical trap with high flux.
[1] J. Ullrich et al., J Phys. B 30, 2971 (1997)