Hannover 2020 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 9: Mass Spectrometry Posters

MS 9.2: Poster

Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof

Latest results of the high-precision Penning-trap mass spectrometer Pentatrap — •M. Door1, J. R. Crespo López-Urrutia1, P. Filianin1, W. Huang1, C. M. König1, K. Kromer1, Y. Novikov2, A. Rischka1, R. X. Schüssler1, Ch. Schweiger1, S. Sturm1, S. Ulmer3, S. Eliseev1, and K. Blaum11Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2Peterburg Nuclear Physics Institute, Gatchina, Russia — 3RIKEN, Fundamental Symmetries Laboratory, Saitama, Japan

The Penning-trap mass spectrometer Pentatrap [1] located at the Max-Planck-Institut für Kernphysik in Heidelberg recently proved its capabilities performing first mass-ratio measurements with a relative uncertainty in the 10−11 regime using highly charged ions of stable xenon isotopes [2]. Pentatrap will continue with mass measurements of dedicated nuclides which will allow, among others, to contribute to tests of special relativity, bound-state QED and neutrino-physics research. Achieving this level of precision requires using a cryogenic detection system with single ion sensitivity and phase sensitive image-current detection methods in combination with highly charged ions provided by external ion sources. A unique feature of Pentatrap is the suppression of systematic uncertainties by performing simultaneous measurements in two adjacent traps, which, according to our latest tests, are subject to equal fluctuations of the magnetic field.

[1] Repp, J. et al., Appl. Phys. B 107, 983 (2012)

[2] Rischka, A. et al., Phys. Rev. Lett., submitted (2020).

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