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MS: Fachverband Massenspektrometrie

MS 5: Poster

MS 5.9: Poster

Dienstag, 11. März 2025, 17:30–19:00, Foyer Physik

Recurring Routine Measurements at DREAMS - Status and Challenges — •Georg Rugel, Toralf Döring, Sebastian Fichter, Klemens Kirsch, Dominik Koll, Johannes Lachner, Annabel Rolofs, Konstanze Stübner, Alexander Wieser, Stella Winkler, Janis Wolf, René Ziegenrücker, Sebastian Zwickel, and Anton Wallner — Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

DREAMS, the DREsden AMS-facility in operation since 2011 is based on a 6 MV tandetron (manufactured by High Voltage Engineering Europa) and shared with other research groups at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR). DREAMS has been used primarily for the measurement of the cosmogenic isotopes ¹⁰Be and ²⁶Al. Over the years, we have improved the AMS facility in various aspects for increased performance, particularly for these two isotopes. In this poster we will give details on the performance of our routine measurements over the past 13 years of operation with a focus on the impact of methodological developments since 2021. We will present our recent investigations and improvements on the performance of ¹⁰Be and ²⁶Al measurements, highlight remaining key challenges, and point to potential future optimisations. Finally, we will show a comparison of our in-house standards material for ²⁶Al with the standards provided by Nishiizumi (KNSTD) demonstrating the compatibility of our analytical results with exposure-age calculators such as CRONUS-Earth.