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MS: Fachverband Massenspektrometrie

MS 8: Poster

MS 8.6: Poster

Donnerstag, 11. März 2010, 16:00–18:00, Lichthof

PENTATRAP: A cryogenic multi-Penning trap experiment for high-precision mass measurements on highly charged ions. — •Julia Repp^1,2, Christine Böhm^1,2, José Crespo López-Urrutia¹, Sergey Eliseev¹, Yuri Novikov⁵, David Pinegar¹, Wolfgang Quint^2,4, Andreas Rosa^1,2, Christian Roux^1,2, Sven Sturm³, Stefan Ulmer^1,2,3, and Klaus Blaum^1,2 — ¹Max-Planck-Institut für Kernphysik, D-69117 Heidelberg — ²Ruprecht-Karls-Universität Heidelberg, D-69120 Heidelberg — ³Institut für Physik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz — ⁴GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt — ⁵St. Petersburg Nuclear Physics Institute, Gatchina Russia

The PENTATRAP experiment is under construction at the Max-Planck-Institut für Kernphysik Heidelberg. It aims for high-precision mass measurements of stable, highly charged nuclides up to uranium with an accuracy of δ m/m≈10⁻¹¹. Primary goals are for example tests of quantum electrodynamics and of electron correlations in the regime of extreme fields as well as neutrino oriented mass measurements on e.g. ¹⁶³Ho. In order to achieve the desired accuracy, a setup of five cryogenic Penning traps including a dedicated detection system is designed. This setup will guarantee a fast ion exchange between a reference ion and an ion of interest as well as an observation of the magnetic field over the measurement time. The planned experimental setup as well as its present status will be presented.