Freiburg 2024 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 3: Accelerator Mass Spectrometry I
MS 3.5: Vortrag
Dienstag, 12. März 2024, 12:15–12:30, HS 3042
Current status of ALIS - The new low-energy isobar suppression setup at CologneAMS — •Markus Schiffer1, Oscar Marchhart1,2,3, Elisa Linnartz1, Martin Martschini2, Gereon Hackenberg1, Peter Steier2, Melisa Maslo4, Timm-Florian Pabst1, Erik Strub4, Tibor Dunai5, Robin Golser2, and Dennis Mücher1 — 1University of Cologne, Institute of Nuclear Physics, Cologne, Germany — 2University of Vienna, Faculty of Physics, Isotope Physics, Vienna, Austria — 3University of Vienna, Vienna Doctoral School in Physics, Vienna, Austria — 4University of Cologne, Division of Nuclear Chemistry, Cologne, Germany — 5University of Cologne, Institute of Geology and Mineralogy, Cologne, Germany
The integration of a unique low-energy isobar suppression unit, the Anion Laser Isobar Separator (ALIS), marked a significant extension to the Cologne 6 MV AMS-System. After the successful test of the advanced gas-filled radio frequency quadrupole (RFQ) ion cooler at the Vienna test bench, we present insights from the first benchmark tests conducted at ALIS.
Our efforts focused on performance tests of the 134 sample MC-SNICS ion source and to verify its reliability, specifically for the extraction of SrF3−. The recent implementation of a beam attenuator has facilitated the injection of stable ion beams into the RFQ.
Additionally, we have integrated an 18 W 532 nm continuous wave laser for photodetachment of isobar anions, in compliance with German regulatory standards.