Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

MS: Fachverband Massenspektrometrie

MS 5: Poster

MS 5.3: Poster

Mittwoch, 4. März 2026, 17:00–19:00, Philo 1. OG

Sample preparation and AMS measurements of ⁹⁰Sr in soil — •Leonie Ebenberger¹, Oscar Marchhart¹, Robin Golser¹, Martin Martschini¹, Silke Merchel¹, Joel Mohren², Dennis Mücher³, Markus Schiffer³, and Erik Strub³ — ¹University of Vienna, Austria — ²RWTH Aachen, Germany — ³University of Cologne, Germany

⁹⁰Sr (T_1/2 = 28.91 a) is a radionuclide produced almost exclusively anthropogenically in nuclear fission reactors, as well as by nuclear weapons. It is of radiological concern due to its high radiotoxicity and mobility in the environment. Our dedicated sample preparation procedure for ⁹⁰Sr Accelerator Mass Spectrometry (AMS) was applied to a larger number of soil samples. The investigated soil samples consist of two soil cores taken near the Rur river, within the vicinity of the Arbeitsgemeinschaft Versuchsreaktor (AVR) Jülich. The AVR Jülich is a quite unique nuclear facility because of a specific incidental release of ⁹⁰Sr. The measurements were performed at the Vienna Environmental Research Accelerator (VERA) utilizing the Ion-Laser InterAction Mass Spectrometry (ILIAMS) setup, which achieves an overall ⁹⁰Zr isobar suppression of >10¹². Preliminary measurement results will be shown.
Ack.: The project was partially funded by the European Union as part of the Horizon Europe call HORIZON-INFRA-2021-SERV-01 under grant agreement number 101058414 (ReMade@ARI).