Steier, Peter; Forstner, O; Golser, Robin; Kutschera, Walter; Martschini, M.; Merchel, S.; Orlowski, Tobias; Priller, Alfred; Vockenhuber, C.; Wallner, Anton
36Cl AMS measurements at natural isotopic concentrations have yet been performed only at tandem accelerators with 5 MV terminal voltage or beyond. We have developed a method to detect 36Cl at natural terrestrial isotopic concentrations with a 3-MV system, operated above specifications at 3.5 MV. An effective separation was obtained with an optimized split-anode ionization chamber design (adopted from the ETH/PSI Zurich AMS group), providing a suppression factor of up to 30,000 for the...[Show more]
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