Optimization of 10Be measurements at the 6 MV AMS facility DREAMS
Optimization of 10Be measurements at the 6 MV AMS facility DREAMS
Lachner, J.; Rugel, G.; Vivo Vilches, C.; Koll, D.; Stübner, K.; Winkler, S.; Wallner, A.
We investigated benefits from raising the ion beam energy during measurements of 10Be with Accelerator Mass Spectrometry (AMS) at the 6MV DREAMS (DREsden AMS) facility. Increasing the terminal voltage to ≥ 5MV hardly reduces the yield of the Be2+ charge state after the accelerator if one applies only a thin Ar gas stripper and makes use of an overpopulation of the 2+ charge state with respect to the expected equilibrium charge state yield. As a further stripping to the 4+ charge state is conducted in a 1 μm silicon nitride degrader foil after the analysing magnet, it is desirable to hit this foil with the highest available velocity in order to have optimal stripping of 10Be2+ to the naked ion. The efficiency of 10Be measurements can be improved by ca. 36% if increasing the terminal voltage from 4.5MV to 5.8MV and already by 7.5% if going to 5.0MV.
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
Related publications
- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 34703) publication
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Nuclear Instruments and Methods in Physics Research B 535(2023), 29-33
Online First (2022) DOI: 10.1016/j.nimb.2022.11.008
Cited 3 times in Scopus
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