Düsseldorf 2007 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 7: Poster

MS 7.6: Poster

Mittwoch, 21. März 2007, 16:30–18:30, Poster A

A setup for providing cooled, selected and bunched metal-cluster ions for photon-interaction studies — •Martin Arndt, Hagen Ritter, Gerrit Marx, and Lutz Schweikhard — Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, Domstraße 10a, 17489 Greifswald

The ion beam coming from a magnetron sputter cluster source is guided through a system of ion optics and a quadrupole bender for focusing and charge selection. The cluster ions of a particular charge state are accumulated, mass-selected and cooled in a linear Paul trap. The mass selection is realized either by using the Paul trap as mass-filter and trap simultaneously or by transversal extraction of defined mass-over-charge values achieved by application of an additional quadrupolar field. Both methods are applied and results are presented. The cluster ions are cooled by buffer gas collisions. The cooled ion bunch is then transferred into a three-dimensional Paul trap for investigation of cluster laser interaction as part of the collaborative research center SFB 652.