Erlangen 2018 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 3: Precision Mass Spectrometry 2

MS 3.3: Vortrag

Montag, 5. März 2018, 17:00–17:15, R 1.020

Production of Highly Charged ¹⁶³Ho Ions in a Room Temperature Electron Beam Ion Trap — •Rima X. Schüssler¹, Christoph Schweiger¹, Alexander Rischka¹, Peter Micke^{1, 2}, José R. Crespo López-Urrutia¹, Pavel Filianin¹, Sergey Eliseev¹, Yuri Novikov¹, and Klaus Blaum¹ — ¹Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — ²QUEST Institute for Experimental Quantum Metrology, Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig

The ECHo experiment [1] aims to investigate the value of the electron neutrino mass in the sub-eV range by analysing the de-excitation spectrum of ¹⁶³Dy following the electron capture process in ¹⁶³Ho. In order to reduce systematic uncertainties in the analysis of the endpoint region, the Q-value of this process will be directly measured as the mass difference of ¹⁶³Ho and ¹⁶³Dy with the high-precision Penning-trap mass spectrometer PENTATRAP [2]. The aim is to achieve a relative mass uncertainty of 10⁻¹¹. At this level of precision the use of highly charged ions is required, which will be produced in an electron beam ion trap (EBIT). Due to the small sample size of ¹⁶³Ho of less than 10¹³ atoms, the wire probe technique [3] will be applied for the precise injection of the sample into the trapping volume of a Heidelberg compact EBIT.
[1] Gastaldo, L. et al.. J. Low Temp. Phys. 176, 876 (2014)
[2] Repp, J. et al., Appl. Phys. B 107, 983 (2012)
[3] Elliott, S.R. et al., Nucl. Instr. and Meth. B 100, 523 (1995)