Erlangen 2018 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 10: Poster 2
MS 10.4: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Orangerie
High-precision mass measurements with Pentatrap — •Ch. Schweiger1, R. X. Schüssler1, A. Rischka1, M. Door1, P. Filianin1, Y. Novikov1, S. Sturm1, S. Ulmer2, S. Eliseev1, and K. Blaum1 — 1Max-Planck-Institut für Kernphysik, 69117 Heidelberg — 2RIKEN, Ulmer Initiative Research Unit, Saitama, Japan
The high-precision Penning-trap mass spectrometer Pentatrap [1] is currently being commissioned at the Max-Planck-Institut für Kernphysik in Heidelberg. It aims at mass-ratio measurements of stable and long-lived highly-charged ions with a relative uncertainty below 10−11 through measurements of their respective cyclotron frequencies in the strong magnetic field of a Penning trap.
Mass data at this level of precision have numerous applications, especially for tests of fundamental interactions and their symmetries, among others in neutrino physics research or a direct test of the theory of special relativity (SR). For a determination of the electron neutrino mass on the sub-eV level within the ECHo collaboration [2] Pentatrap contributes with an independent measurement of the Q-value of the electron capture transition of 163Ho to 163Dy. In collaboration with the Institut-Laue-Langevin (ILL) a direct test of SR by conversion of a mass to electromagnetic radiation as e.g. in the neutron capture process of 35Cl is planned. The mass ratio of 35Cl/36Cl will be precisely measured at Pentatrap whereas the photon wavelength is measured by means of crystal Bragg spectroscopy at the ILL.
[1] Repp, J. et al., Appl. Phys. B 107, 983 (2012)
[2] Gastaldo, L. et al., Eur. Phys. J. ST 226, 1623 (2017)