Düsseldorf 2007 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 14: Poster I - Ultra-cold atoms, ions and BEC

A 14.1: Poster

Dienstag, 20. März 2007, 16:30–18:30, Poster B

Transportable Rubidium magneto-optical trap as a high precision target for highly charged ions — •Simone Götz, Magnus Albert, Judith Eng, Terry Mullins, Wenzel Salzmann, Roland Wester, and Matthias Weidemüller — Physikalisches Institut, Universität Freiburg, Hermann Herder Str.3, D-79104 Freiburg i. Br.

A transportable magneto-optical trap for rubidium atoms is presented which serves as a high precision target with high densities for ion beams and photons. In scattering experiments with highly charged ions the low temperature of the target atoms (<100 µ K), corresponding to very low momentum spreads of the rubidium atoms (δ p < 0.01), ensures a high resolution measurement of the recoil ion momentum components using Recoil-Ion-Momentum Spectroscopy (RIMS) [1]. The setup will be tested with multiphoton ionization experiments in strong ultrashort laser pulses. Adding photon and x-ray detectors and performing time-coincidence measurements, the process of double and triple electron transfer from the target atoms to the projectile atoms can be investigated in detail. Resonance phenomena are expected to be observed.

[1]S. Vajda et al. Chem.Phys. 267, 231-239,(2001)