Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 406, Issue -, Pages 283-286Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2017.03.031
Keywords
CologneAMS; Small gaseous CO2 samples; Radiocarbon; Gas ion source; Accelerator mass spectrometry
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Funding
- Deutsches GeoForschungsZentrum GFZ
- Helmholtz-Zentrum Potsdam
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A second SO-110 B (Arnold et al., 2010) ion source was installed at the 6 MV CologneAMS for the measurement of gaseous samples. For the gas supply a dedicated device from Ionplus AG was connected to the ion source. Special effort was devoted to determine optimized operation parameters for the ion source, which give a high carbon current output and a high C-14(-) yield. The latter is essential in cases when only small samples are available. Additionally a modified immersion lens and modified target pieces were tested and the target position was optimized. (C) 2017 Elsevier B.V. All rights reserved.
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