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Darmstadt 2008 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 2: Ionenfallen- und FT-IZR-MS, Moleküle, Cluster, Zerfälle und Reaktionen

MS 2.8: Vortrag

Montag, 10. März 2008, 18:30–18:45, 3E

A novel Penning trap mass spectrometer for fundamental studies — •Sebastian George1,2, Frank Herfurth2, Jens Ketelaer1, Szilard Nagy1, Wolfgang Quint2, and Klaus Blaum1,21Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany — 2GSI, 64291 Darmstadt, Germany

A novel five-Penning trap system designed for high-precision mass measurements on highly-charged stable and radioactive nuclides is currently planned and under construction at the University of Mainz in collaboration with GSI Darmstadt. High-precision mass values are required in many fields of physics and the required uncertainty ranges from 10−7 in nuclear physics down to below 10−11 in metrology and for the determination of fundamental constants. To this end we develop a new five-trap mass spectrometer with single-ion-sensitivity. It is a combination of one precision trap for the actual mass measurement, two preparation traps for ion storage and cooling, and two monitoring traps for a continuous B-field observation. It will be dedicated to highly-charged isotopes delivered first by the EBIT at the Max-Planck-Institut of Heidelberg and later after full commissioning by the HITRAP facility at GSI. The setup of the trap itself is finished and will be presented together with the present status of the project.

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