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MS: Fachverband Massenspektrometrie

MS 10: Accelerator Mass Spectrometry and Applications 3

MS 10.6: Vortrag

Donnerstag, 20. März 2014, 18:00–18:15, DO24 1.205

First photodetachment experiments at ILIAS and their relevance for AMS — •Martin Martschini¹, Pontus Andersson², Robin Golser¹, Dag Hanstorp³, Johannes Lahner¹, Alfred Priller¹, and Oliver Forstner¹ — ¹VERA Laboratory, Faculty of Physics, University of Vienna, Austria — ²Earth and Space Sciences Department, Chalmers Technical University, Gothenburg, Sweden — ³Department of Physics, University of Gothenburg, Sweden

The Ion Laser Interaction Setup ILIAS is a facility at the VERA Laboratory of the University of Vienna to study selective isobar suppression by laser photodetachment of negative ions. It provides mass-separated beams of negative atomic or molecular ions with energies up to 30 keV from a Middleton type cesium sputter ion source. In the final setup, a gas-filled radio frequency quadrupole cooler is used to overlap the ion beam with a strong continuous wave laser beam. This ion cooler is currently in the commissioning phase. With a recently built neutral particle detector and two electrostatic beam benders however, first photodetachment experiments with atomic and molecular ions were conducted in a crossed beam setup. Results of these measurements as well as first test results for the performance of the ion cooler will be presented and their relevance for AMS will be discussed.