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14C Dating with the Gif-sur-Yvette Tandetron Accelerator: Status Report and Study of Isotopic Fractionation in the Sputter Ion Source

Published online by Cambridge University Press:  18 July 2016

Maurice Arnold
Affiliation:
Centre des Faibles Radioactivités, Laboratoire Mixte CNRS-CEA Parc du CNRS, F-91198 Gif-sur-Yvette Cedex, France
Edouard Bard
Affiliation:
Centre des Faibles Radioactivités, Laboratoire Mixte CNRS-CEA Parc du CNRS, F-91198 Gif-sur-Yvette Cedex, France
Pierre Maurice
Affiliation:
Centre des Faibles Radioactivités, Laboratoire Mixte CNRS-CEA Parc du CNRS, F-91198 Gif-sur-Yvette Cedex, France
Helene Valladas
Affiliation:
Centre des Faibles Radioactivités, Laboratoire Mixte CNRS-CEA Parc du CNRS, F-91198 Gif-sur-Yvette Cedex, France
J C Duplessy
Affiliation:
Centre des Faibles Radioactivités, Laboratoire Mixte CNRS-CEA Parc du CNRS, F-91198 Gif-sur-Yvette Cedex, France
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Abstract

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The standard procedure for measuring 14C at the Gif-sur-Yvette Tandetron AMS facility is described. A new sample manipulator and automated measurements are being used and have been operational for six months. Evidence of isotopic fractionation in the sputter ion source is provided. We take this into account by measuring the 13C/12C ratio of the sample in the accelerator.

Type
I. Sample Preparation and Measurement Techniques
Copyright
Copyright © The American Journal of Science 

References

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