Progress with a gas-accepting ion source for Accelerator Mass Spectrometry
Roberts, Mark L.
von Reden, Karl F.
McIntyre, Cameron P.
Burton, Joshua R.
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The National Ocean Sciences AMS (NOSAMS) facility at Woods Hole Oceanographic Institution has developed a novel, gas-accepting microwave-plasma ion-source. The source is a key component of a compact Accelerator Mass Spectrometry (AMS) system built for the analysis of 14C in a continuously flowing gas stream. The gas source produces carbon currents from a stream of CO2 with currents typical of a traditional graphite source. Details of the gas source, including ion current achieved, optimal flow rate, efficiency, and memory are presented. Additionally, data obtained from coupling a gas chromatograph to the source to will be shown.
Author Posting. © The Author(s), 2010. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 269 (2011): 3192–3195, doi:10.1016/j.nimb.2011.04.017.
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von Reden, Karl F.; Roberts, Mark L.; Burton, Joshua R.; Beaupre, Steven R. (2011-09)A 2.45 GHz microwave ion source coupled with a magnesium charge exchange canal (CxC) has been successfully adapted to a large acceptance radiocarbon accelerator mass spectrometry system at the National Ocean Sciences AMS ...
Roberts, Mark L.; von Reden, Karl F.; Burton, Joshua R.; McIntyre, Cameron P.; Beaupre, Steven R. (2011-10-31)The National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility at the Woods Hole Oceanographic Institution has developed an Accelerator Mass Spectrometry (AMS) system designed specifically for the analysis of ...
Roberts, Mark L.; Schneider, Robert J.; von Reden, Karl F.; Wills, J. S. C.; Han, Baoxi; Hayes, John M.; Rosenheim, Brad E.; Jenkins, William J. (2007-02)A gas-accepting microwave-plasma ion source is being developed for continuous-flow Accelerator Mass Spectrometry (AMS). Characteristics of the ion source will be presented. Schemes for connecting a gas or liquid chromatograph ...