Mainz 2026 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 8: Isobar Suppression Techniques
MS 8.3: Vortrag
Freitag, 6. März 2026, 11:45–12:00, N 6
First ion cooler assisted measurements at a 1 MV AMS facility — •Johannes Lachner1, Robin Golser2, Dominik Koll1, Georg Rugel1, Alexander Wieser1,2, Stella Winkler1, and Anton Wallner1 — 1Helmholtz-Zentrum Dresden-Rossendorf — 2Universität Wien, Fakultät für Physik
The 1 MV AMS system HAMSTER (Helmholtz Accelerator Mass Spectrometer Tracing Environmental Radionuclides) contains an injector with an ion cooler, the so-called Ion Linear Trap for Isobar Suppression (ILTIS). This beam line is designed for the purpose of isobar suppression in collisions with buffer gas and by laser photodetachment and will expand the capabilities for radionuclide measurements beyond the classical nuclides measured at low-energy AMS facilities.
The presentation will cover results from first experiments with the cooled ion beam transmitted through the whole AMS system. A particular focus is set on the preparations for transmitting Cl beams in lower charge states and exploring the challenges of 36Cl measurements at final beam energies below 1 MeV.
Keywords: ion cooler; laser photodetachment; anion; isobar suppression