Hannover 2013 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 8: Poster
MS 8.15: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Setting-up a Super-SIMS at DREAMS — •Georg Rugel, Shavkat Akhmadaliev, Silke Merchel, Stefan Pavetich, Axel Renno, and René Ziegenrücker — Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
At the Helmholtz-Zentrum Dresden-Rossendorf a new AMS (accelerator mass spectrometry) facility, DREsden AMS (DREAMS), with a 6–MV tandem accelerator has been successfully installed [1]. The range of applications will be broaden
by setting up a Super-SIMS (SIMS = Secondary ion mass spectrometry) as an ultrasensitive analytical method for the determination of stable elements and isotopes. A commercial SIMS (from CAMECA) is connected to the accelerator and the high-energy setup of DREAMS, which will be additionally equipped with a time-of-flight detector system. The spatial resolution (x,y: ∼ 3 µm; z: ∼ 5 nm) of the SIMS will be kept as the SIMS is utilized as the negative ion source for the accelerator-based mass spectrometry. By the complete destruction of molecules detection limits some orders of magnitude better than for traditional dynamic SIMS are expected, i.e. ∼10−9–10−12, see e.g. [2]. The focus of applications will be geological samples in the framework of resource technology research.
[1] S. Akhmadaliev et al., NIMB 294 (2013) 5.
C. Maden, Dissertation ETH Zürich 2003.