Düsseldorf 2007 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 6: Präzisionsmassenspektrometrie und Ionenfallen
MS 6.7: Vortrag
Mittwoch, 21. März 2007, 15:45–16:00, 5F
Implementation of a sensitive, narrow-band Fourier-Transform Ion-Cyclotron-Resonance detection for short-lived radionuclides at SHIPTRAP — •Rafael Ferrer1, Klaus Blaum1,2, Frank Herfurth2, Jens Ketelaer1, Szilard Nagy1, Dennis Neidherr1, Christine Weber1,2, and collaboration SHIPTRAP2 — 1Johannes Gutenberg-Universität, Institut für Physik, D-55099 Mainz — 2GSI Darmstadt, D-64291 Darstadt.
High-precision Penning trap mass spectrometry on radionuclides is so far only performed with the destructive Time-of-Flight Ion-Cyclotron-Resonance (ICR) detection method. One of the main limitations to the experimental investigation in the transuranium region as observed at SHIPTRAP [1], are the low production rates that make the destructive detection method not longer applicable. A non-destructive method with single ion sensitivity, like the narrow-band Fourier Transform-ICR technique, is then ideally suited for the identification and characterization of these superheavy species. Accordingly, a cryogenic FT-ICR Penning trap setup has been built [2] and is currently tested at the University of Mainz [3]. It consists of a cylindrical trap for isobaric cleaning with helium as buffer gas and a hyperbolically shaped trap including a narrow-band LC-circuit that will record the induced image current of a single, singly-charged ion for its mas determination. An overview of the current status of the setup as well as some test results will be presented. [1] M. Block et al., Eur.Phys. J. A. 25, S01, 49 (2005) [2] C. Weber et al., Eur. Phys. J. A. 25, S01, 65 (2005) [3] R. Ferrer et al., Eur. Phys. J A., accepted (2006)