Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-04T23:17:43.122Z Has data issue: false hasContentIssue false
  • English
  • Français

Contamination and Fractionation Effects in AMS-Measured 14C/12C and 13C/12C Ratios of Small Samples

Published online by Cambridge University Press:  18 July 2016

Cees Alderliesten ,
Klaas Van Der Borg  and
Arie F. M. De Jong
Cees Alderliesten
Affiliation:
R. J. Van de Graaff Laboratorium, Utrecht University, P.O. Box 80.000, NL-3508 TA Utrecht The Netherlands
Klaas Van Der Borg
Affiliation:
R. J. Van de Graaff Laboratorium, Utrecht University, P.O. Box 80.000, NL-3508 TA Utrecht The Netherlands
Arie F. M. De Jong
Affiliation:
R. J. Van de Graaff Laboratorium, Utrecht University, P.O. Box 80.000, NL-3508 TA Utrecht The Netherlands
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In AMS measurements on small (m 400 μg) carbon samples, an m-dependence has been noted for the 14C/12C and 13C/12C ratios that is due to the combined effect of contamination and fractionation. A simple formalism is presented to describe the phenomena and to correct measurements on unknowns for their effect.

Type
Part 1: Methods
Information
Radiocarbon , Volume 40 , Issue 1: 16th International Radiocarbon Conference 16-20,1997 Groningen , 1997 , pp. 215 - 221
Copyright
Copyright © The American Journal of Science 

References

Arnold, M., Bard, E., Maurice, P. and Duplessy, J.-C. 1987 14C dating with the Gif-sur-Yvette tandetron accelerator: Status report. Nuclear Instruments and Methods in Physics Research B29: 120–123.Google Scholar
Brown, T. A. and Southon, J. R. 1997 Corrections for contamination background in AMS 14C measurements. Nuclear Instruments and Methods in Physics Research B123: 208–213.Google Scholar
Donahue, D. J., Linick, T. W. and Jull, A. J. T. 1990 Isotope-ratio and background corrections for accelerator mass spectrometry radiocarbon measurements. Radiocarbon 32(2): 135–142.Google Scholar
Klinedinst, D. B., McNichol, A. P., Currie, L. A., Schneider, R. J., Klouda, G. A., von Reden, K. F., Verkouteren, R. M. and Jones, G. A. 1994 Comparative study of Fe-C bead and graphite target performance with the National Ocean Science AMS (NOSAMS) facility recombinator ion source. Nuclear Instruments and Methods in Physics Research B92: 166–171.Google Scholar
Middleton, R., Klein, J. and Fink, D. 1989 A CO2 negative ion source for 14C dating. Nuclear Instruments and Methods in Physics Research B43: 231–239.Google Scholar
Nadeau, M.-J., Kieser, W. E., Beukens, R. P. and Litherland, A. E. 1987 Quantum Mechanical effects on sputter source isotope fractionation. Nuclear Instruments and Methods in Physics Research B29: 83–S6.Google Scholar
van der Borg, K., Alderliesten, C., de Jong, A. F. M., van den Brink, A., de Haas, A. P., Kersemaekers, H. J. H. and Raaymakers, J. E. M. J. 1997 Precision and mass fractionation in 14C analysis with AMS. In Jull, A. J. T., Beck, J. W., and Burr, G. S., eds., Proceedings of the 7th International Symposium on Accelerator Mass Spectrometry. Nuclear Instruments and Methods in Physics Research B123: 97–101.CrossRefGoogle Scholar
van der Borg, K., Alderliesten, C., Houston, C. M., de Jong, A. F. M. and van Zwol, N. A. 1987 Accelerator mass spectrometry with 14C and 10Be in Utrecht. Nuclear Instruments and Methods in Physics Research B29: 143–145.CrossRefGoogle Scholar
van de Wal, R. S. W., van Roijen, J. J., Raynaud, D., van der Borg, K., de Jong, A. F. M., Oerlemans, J., Lipenkov, V. and Huybrechts, P. 1994 From 14C/12C measurements towards radiocarbon dating of ice. Tellus 46(B): 94–102.Google Scholar
van Roijen, J. J., van der Borg, K., de Jong, A. F. M. and Oerlemans, J. 1995 Ages and ablation and accumulation rates from 14C measurements on antarctic ice. Annals of Glaciology 21: 139–143.Google Scholar
Vogel, J. S., Southon, J. R., Nelson, D. E. and Brown, T. A. 1984 Performance of catalytically condensed carbon for use in accelerator mass spectrometry. Nuclear Instruments and Methods in Physics Research B5: 289–293.Google Scholar