Freiburg 2024 – scientific programme
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MS: Fachverband Massenspektrometrie
MS 6: New Methods, AMS II, Applications, Actinides
MS 6.5: Talk
Wednesday, March 13, 2024, 18:15–18:30, HS 3042
Development of an Ion Mobility Spectrometer towards studies of Lanthanides and Actinides — •Biswajit Jana1,2, Aayush Arya1,2, Eunkang Kim1,2, Elisabeth Rickert1,2,3, Elisa Romero Romero1,2, Harry Ramanantoanina1,2, Sebastian Raeder2,3, Michael Block1,2,3, and Mustapha Laatiaoui1,2,3 — 1Department Chemie, Johannes Gutenberg Universität, Fritz-Strassmann-Weg 2, 55128 Mainz, Germany — 2Helmholtz-Institut Mainz, Staudingerweg 18, 55128 Mainz, Germany — 3GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany.
Relativistic effects significantly alter the electronic configuration of the heaviest elements and strongly influence their chemical and physical properties. Ion mobility within a noble gas environment is sensitive to the ions’ electronic configuration due to ion-neutral gas interactions, unveiling the impact of relativistic effects on their structure. An ion mobility spectrometer was developed to precisely measure the reduced ion mobility of heavy lanthanides and actinides by conducting parametric studies under varying electric fields, buffer-gas pressures, and temperatures. Ions from a specific element are generated through laser ablation. Following extraction, cooling, and bunching via an RF buncher, these ions traverse the drift tube and are separated by mass using a quadrupole mass spectrometer prior to detection. Here I report systematic ion mobility measurements of Lu+ ions drifting in helium gas for reduced electric fields, spanning from 1 to 30 Td.
Keywords: Ion mobility spectrometer; Reduced ion mobility; Lutetium ions; Lanthanides; Drift tube