The Keck Carbon Cycle AMS Laboratory, University of California, Irvine: Initial Operation and Background Surprise
accelerator mass spectroscopy
C 13 C 12
Keck Carbon Cycle Accelerator Mass Spectrometry Laboratory
University of California
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CitationSouthon, J., Santos, G., Druffel-Rodriguez, K., Druffel, E., Trumbore, S., Xu, X., ... & Mazon, M. (2004). The Keck Carbon Cycle AMS laboratory, University of California, Irvine: Initial operation and a background surprise. Radiocarbon, 46(1), 41-49.
DescriptionFrom the 18th International Radiocarbon Conference held in Wellington, New Zealand, September 1-5, 2003.
AbstractA new radiocarbon accelerator mass spectrometry (AMS) laboratory for carbon cycle studies has been established at the University of California, Irvine. The 0.5MV AMS system was installed in mid-2002 and has operated routinely since October of that year. This paper briefly describes the spectrometer and summarizes lessons learned during the first year of operation. In the process of setting up the system, we identified and largely suppressed a previously unreported 14C AMS background: charge exchange tails from 14N beams derived from nitrogen-containing molecular ions produced near the entrance of the accelerator.