Dresden 2011 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 5: Precision Mass Spectrometry and Fundamental Applications

MS 5.3: Vortrag

Mittwoch, 16. März 2011, 11:15–11:30, GÖR 229

The five-Penning trap mass spectrometer PENTATRAP — •Julia Repp^1,2, Christine Böhm^1,2, José Crespo López-Urrutia¹, Andreas Dörr², Sergey Eliseev¹, Mikhail Goncharov^1,2, Yuri Novikov⁴, Christian Roux^1,2, Sven Sturm³, Stefan Ulmer^2,3, and Klaus Blaum^1,2 — ¹Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany — ²Physikalisches Institut, Ruprecht-Karls-Universität, 69120 Heidelberg, Germany — ³Johannes Gutenberg-Universität, Institut für Physik, 55099 Mainz, Germany — ⁴St. Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia

Currently the new mass spectrometer PENTATRAP is being developed at the Max-Planck-Institut für Kernphysik in Heidelberg. Ions of interest are stable and long-lived highly charged nuclides up to uranium. PENTATRAP aims for an accuracy of few parts in 10¹² for mass ratios of mass doublets and a relative uncertainty of ≈ 10⁻¹¹ for absolute mass ratios. The measured mass values will contribute among others to Q-value determinations of relevant β-processes for neutrino physics, stringent tests of quantum electrodynamics in the regime of extreme fields, and a test of special relativity. The five-trap setup allows to choose an optimal measurement scheme for each ionic species of interest. Main features of PENTATRAP are an access to highly charged ions, highly sensitive cryogenic non-destructive detection systems, a fast exchange between different ions and a continuous monitoring of magnetic field fluctuations. This talk will present the experimental setup and the present status of the PENTATRAP experiment.