Hannover 2010 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 6: Beschleunigermassenspektrometrie und Anwendungen II

MS 6.2: Vortrag

Mittwoch, 10. März 2010, 16:45–17:00, F 428

DREAMS - a universal AMS facility based on the 6 MV-Tandetron^TM at FZD in Dresden — •Shavkat Akhmadaliev, Andreas Kolitsch, Silke Merchel, and Wolfhard Möller — Forschungszentrum Dresden-Rossendorf e. V., Institute of Ion Beam Physics and Materials Research, P. O. Box 510119, D-01314, Dresden, Germany

A new accelerator mass spectrometry (AMS) system has been installed at the Forschungszentrum Dresden-Rossendorf (FZD). The system is based on a 6 MV-Tandetron ^TM accelerator produced by High Voltage Engineering Europe (HVEE). The AMS facility is specified for measurements of ¹⁰Be, ¹⁴C, ²⁶Al, ³⁶Cl, ⁴¹Ca and ¹²⁹I with isotopic ratios of 10⁻¹⁰ - 10⁻¹⁶ and precision better than 0.3% for ¹⁴C/¹²C.

The system uses a bouncer sequential injector with two Cs-sputter ion sources and a 54^∘ electrostatic analyser (ESA). On the high-energy site it has a 90^∘-analysing magnet, Faraday-Cups for stable nuclides, a 35^∘-ESA, a post-stripper foil, and a 30^∘-vertical magnet for suppression of interfering species, and gas ionisation chamber for detection of radionuclides [1].

The Cockroft-Walton type high voltage generator provides a terminal voltage of up to 6 MV. The system is additionally equipped with a multipurpose ion injector containing a third Cs-sputter ion source and a duoplasmatron for high-energy ion implantation and ion-beam materials analysis.

[1] M. Arnold et al., accepted for Nucl. Instr. and Meth. B (Proceedings of IBA-2009).