Rostock 2019 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 7: New Developments and Techniques
MS 7.1: Vortrag
Mittwoch, 13. März 2019, 15:00–15:15, U A-Esch 2
Towards the Ion Mobility Measurement of Actinides — •Elisabeth Rickert1,2, Hartmut Backe2, Michael Block1,2,3, Christoph E. Düllmann1,2,3, Tobias Kron1,3, Mustapha Laatiaoui1,2, Werner Lauth2, Steffen Lohse1, Sebastian Raeder1,3, and Fabian Schneider1,2 — 1Helmholtz-Institut Mainz — 2Johannes Gutenberg-Universität Mainz — 3GSI Helmholtzzentrum für Schwerionenforschung
Ion mobility measurements are a powerful tool to investigate ion-atom interaction potentials. Their sensitivity to the electronic configuration has been demonstrated for many elements across the periodic table. Especially for heavy elements, the impact of relativistic effects on the electronic configuration may lead to deviations in the periodicity, hence to distinct ion mobilities. This opens up a new niche for isobaric purification and element identification in the research of actinides and transactinides. Systematic ion mobility spectrometry measurements performed in the lanthanides [1] are being extended to the actinides. Resonant two-step laserionization will provide an element-selective ion production from a sample filament in argon gas and thus ensure an element-selective detection. In the talk, the experimental approach, the first results and the future plans are presented.
[1]: Laatiaoui, M. et al., EPJD (2012) 66:232