Mainz 2017 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 7: Poster

MS 7.5: Poster

Mittwoch, 8. März 2017, 17:00–19:00, P OG1

Improvements of the resolving power at ClusterTrap — •Alexander Jankowski, Steffi Bandelow, Stephan König, Gerrit Marx, Lutz Schweikhard, and Markus Wolfram — Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, 17487 Greifswald, Germany

The ClusterTrap experiment in Greifswald [1] is a versatile tool for the investigation of size- and charge-state dependent properties of metal cluster. For these investigations charged clusters are stored using Paul and Penning traps and are exposed to electrons, photons or other reactants. Interaction products are then analyzed by time-of-flight mass spectrometry. Its resolving power determines which reaction products can be distinguished. A particular difficulty poses the extraction from the Penning Trap, since it deviates from the two-stage acceleration section of a Wiley-McLaren arrangement [2]. The presentation describes simulations of the extraction from the Penning trap as well as the design and test of a reflectron [3] for the improvement of the resolving power.

References:

[1] F. Martinez et al., Int. J. Mass Spectrom. 365-366, 266 (2014)

[2] W.C. Wiley, I.H. McLaren, Rev. Sci. Instrum. 26, 1150 (1955)

[3] B.A. Mamyrin et al., Zh. Eksp. Teor. Fiz. 64, 82 (1973)