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SAMOP 2021 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 7: Accelerator Mass Spectrometry I

MS 7.1: Invited Talk

Thursday, September 23, 2021, 10:45–11:15, H3

The new compact, multi isotope AMS system (MILEA) at ETH Zurich - performance and applications — •Marcus Christl1, Sascha Maxeiner2, Arnold Müller2, Philip Gautschi1, Christof Vockenhuber1, and Hans-Arno Synal11ETH Zürich, Switzerland — 2Ionplus AG, Dietikon, Switzerland

The prototype version of a new, compact, multi-isotope, low energy accelerator mass spectrometry system (MILEA) was built in collaboration with Ionplus AG and set into operation at ETH Zurich in late 2018. The system is based on a 300 kV power supply and was optimized for small footprint (3.5 x 7 m2) and to reach optimal performance for 10Be, 14C, 26Al, 129I, and actinide measurements at low energies. During the past years the system was thoroughly tested and it is now increasingly being used for routine AMS operations.

In the first part of the presentation, the layout of the system, its properties and setup for the different nuclides will be presented and the performance of the system will be discussed for the different nuclides. In the second part of the presentation some recent results of our actinide and heavy ion program will be presented including a 236U/238U record from sea shells in the Northeast Atlantic Ocean and 233U/236U data from the Arctic Ocean.

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