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Düsseldorf 2007 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 5: Ionenfallen und Cluster

MS 5.4: Talk

Wednesday, March 21, 2007, 12:15–12:30, 5F

Capture and investigation of cluster ions in an open Paul trap — •Hagen Ritter, Martin Arndt, Gerrit Marx, and Lutz Schweikhard — Institut für Physik, Ernst-Moritz-Arndt-Universität, Domstr. 10a, 17489 Greifswald

An open Paul trap is used for the investigation of stored cluster ions. The trap consists of two pairs of electrodes arranged in two planes mounted opposite to each other. Simulations were performed to determine the best design for the realisation of a quadrupolar field between the two planes. As part of an ion-trap system, bunched cluster ions coming from a linear Paul trap are captured in the open Paul trap, stored and investigated. The mass spectra are obtained by time-of-flight mass spectrometry. The design allows 360° radial access to the trap volume and different options for manipulation of the stored cluster ions. The experimental setup is intended to serve as a device for research on metal-cluster ions as part of the collaborative research center SFB 652.

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