Mainz 2026 – scientific programme
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MS: Fachverband Massenspektrometrie
MS 3: Actinide Analysis
MS 3.4: Talk
Tuesday, March 3, 2026, 12:15–12:30, N 6
Characterizing a cryogenic ion mobility spectrometer for actinides with measurements on their lighter homologues — •Felix Katzer1, Michael Block1,2,3, Premaditya Chhetri1,2,3, Biswajit Jana4, Mustapha Laatiaoui5, Sebastian Raeder2,3, and Elisabeth Rickert1,2 — 1JGU Mainz, Germany — 2HI Mainz, Germany — 3GSI Darmstadt, Germany — 4BARC Trombay, India — 5GANIL Caen, France
The investigation of the ion mobility of heavy elements in noble gases provides valuable insights into the influence of relativistic effects and electron correlation on their electronic structure. To enable such studies, a cryogenic drift tube based actinide ion mobility spectrometer (AIMS) has been developed as a powerful tool to better understand the chemical and physical properties of heavy elements. To characterize the set up, various transition metals and lanthanides, such as Gd+, Ho+, Tm+ and Yb+, were studied with regard to their low-field reduced ion mobility in helium as a buffer gas. In the measurements, the mobility behavior of the homologous f-block elements was investigated by varying measurement parameters in order to understand the underlying mechanisms and to determine system uncertainties. Further modifications to the system are being carried out in preparation for future mobility measurements of the elements in the actinide series.
Keywords: Ion mobility; Heavy elements; Lanthanides; Actinides