Darmstadt 2008 – scientific programme
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MS: Fachverband Massenspektrometrie
MS 9: Poster
MS 9.10: Poster
Wednesday, March 12, 2008, 16:30–18:30, Poster C2
A position resolving detector for Penning trap mass spectrometry — •Georg Eitel1, Klaus Blaum1,2, Sebastian George1, Jens Ketelaer1, Szilard Nagy1, Julia Repp1, Rafael Ferrer1, Christian Smorra1, Michael Block2, and Michael Dworschak2 — 1Institut für Physik, Universität Mainz, 55099 Mainz, Germany — 2GSI, 64291 Darmstadt, Germany
By the use of a position resolving multi-channel-plate detector (MCP) the ion-transport diagnostics needed for high precision mass experiments can be improved essentially. The two-dimensional position provided for each particle allows a direct control of beam deflection and beam focussing. As shown in ion-trajectory simulations the spatial resolution furthermore offers the possibility of observing the ion motion inside a Penning trap by means of the distribution of ions on the detector. Thus the commonly used time-of-flight resonance technique can be extended for the identification and separation of contaminations inside the trap aiming at better resolution and higher precision.
First tests concerning the ion beam manipulation and the observation of the ion motion have been performed at SHIPTRAP (GSI Darmstadt). Experimental results and promising fields of application will be presented.