Erlangen 2018 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 1: Precision Mass Spectrometry 1
MS 1.2: Vortrag
Montag, 5. März 2018, 11:00–11:15, R 1.020
Towards parts per trillion mass measurements on light nuclei — •Sascha Rau1, Fabian Heisse1,2, Florian Köhler-Langes1, Wolfgang Quint2, Günter Werth3, Michael Jentschel4, Sven Sturm1, and Klaus Blaum1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany — 2GSI-Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany — 3Institut für Physik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany — 4Nuclear and Particle Physics Group, Institut Laue-Langevin, Grenoble, France
Light nuclei play a fundamental role in physics. The proton and the neutron, together with the electron make up all matter we encounter in our everyday life, making their properties highly interesting for metrology.
Another application is the determination of the electron-antineutrino mass at KATRIN [1], where the mass difference of tritium and helium-3 is required.
We developed a cryogenic Penning-trap setup dedicated to mass measurements on light ions.
With this setup we were recently able to measure the proton’s atomic mass at a relative uncertainty of 3×10−11 by comparing the cyclotron frequencies of a proton and a 12C6+-ion utilizing a phase-sensitive measurement technique [2].
In this talk I will present our progress to push relative mass uncertainties down to the 10−12-regime and extend the measurement to other light ions.
E. W. Otten & C. Weinheimer, Rep. Prog. Phys. 71, 086201 (2008)
F. Heiße et al., Phys. Rev. Lett. 119, 033001 (2017)