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High-sensitivity isobar-free AMS measurements and reference materials for 55Fe, 68Ge and 202gPb

Wallner, Anton; Bichler, Max; Buczak, K; Fink, David; Forstner, O; Golser, Robin; Hotchkis, Michael A; Klix, A.; Krasa, A.; Kutschera, Walter; Lederer, C; Plompen, Arjan; Priller, Alfred; Schumann, D.; Semkova, V.; Steier, Peter

Description

Isobaric interference represents one of the major limitations in mass spectrometry. For a few cases in AMS with tandem accelerators, isobaric interference is completely excluded like the well-known major isotopes 14C, 26Al, 129I. Additional isotopes are 55Fe (t1/2 = 2.74 years), 68Ge (t1/2 = 270.9 days) and 202Pb (t1/2 = 52.5 kyr), with 68Ge and 202Pb never been used in AMS so far. Their respective stable isobars, 55Mn, 68Zn and 202Hg do not form stable negative ions. The exceptional...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Conference paper
URI: http://hdl.handle.net/1885/71376
Source: Nuclear Instruments and Methods in Physics Research Section B 294: Proceedings of the Twelfth International Conference on Accelerator Mass Spectrometry
DOI: 10.1016/j.nimb.2012.03.029

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