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MS: Fachverband Massenspektrometrie
MS 3: New Developments and Techniques
MS 3.3: Vortrag
Montag, 9. März 2020, 15:45–16:00, f128
A cryogenic drift cell setup for ion mobility measurements in the actinides — •Jonas Schneider1,2, Hartmut Backe1, Michael Block1,2,3, Christoph E. Düllmann1,2,3, Mustapha Laatiaoui1,2, Werner Lauth1, Steffen Lohse2, Sebastian Raeder2,3, Elisabeth Rickert2,3, and Fabian Schneider1,2 — 1Johannes Gutenberg-Universität, Mainz — 2Helmholtz-Institut, Mainz — 3GSI Helmholtzzentrum für Schwerionenforschung mbH, Darmstadt
Ion mobility spectrometry is a powerful tool to get insights on the ion-atom interaction potential by measuring the drift time of ions through a gas atmosphere. The potential is highly influenced by the atom’s electronic configuration and subject to increasingly stronger relativistic effects with increasing atomic number Z. A cryogenic drift cell is currently under development to improve the capabilities of the existing ion mobility spectrometer [Laatiaoui et al. EPJD 66 (2012) 232] and to enable measurements over a large temperature and pressure range of the buffer gas in the region of the transuranium elements (Z>92). To achieve optimal transmission rates for the design, extensive ion trajectory simulations for the cell and surrounding radiofrequency quadrupole structures were carried out using the SIMION software package. Results from these simulations as well as the current status will be discussed.