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Report No.

Frontiers of challenging studies in geoscience utilizing accelerator mass spectrometry

Honda, Maki   ; Martschini, M.*; Lachner, J.*; Wieser, A.*; Marchhart, O.*; Steier, P.*; Golser, R.*; Sakaguchi, Aya*

The effective isobar suppression system based on the interaction between accelerated ions and lasers (photons) has been introduced into conventional AMS systems, allowing an increasing number of nuclides to be measured by AMS. This presentation will give an overview of the analytical technique, the measurement results, and the remaining challenges as examples of world-leading successful AMS of $$^{90}$$Sr and $$^{135}$$Cs in environmental samples obtained from the IAEA and others. Moreover, the applicability of the AMS method in geoscience (e.g., studies of $$^{90}$$Sr distribution in the hydrosphere and the range of applicable environmental samples) will also be discussed.



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