Hostname: page-component-77c89778f8-9q27g Total loading time: 0 Render date: 2024-07-18T12:21:25.588Z Has data issue: false hasContentIssue false
  • English
  • Français

A High Throughput 14C Accelerator Mass Spectrometer

Published online by Cambridge University Press:  18 July 2016

Kenneth H. Purser
Kenneth H. Purser*
Affiliation:
Southern Cross Corporation, 426C Boston Street, Topsfield, Massachusetts 01983 USA
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.

I present design details of a tandem accelerator mass spectrometer, which has been installed at the National Ocean Sciences AMS Facility at Woods Hole, Massachusetts, to provide precision 14C/13C/12C isotopic ratios for sub-milligram-size samples of graphite with throughputs of >4000 samples per year. A unique feature is the capability for simultaneous measurement of all three isotopes after acceleration, to avoid differential transmission effects and to allow on-line fractionation corrections and diagnosis of instrument health. Using filamentous graphite fabricated from a recent sample, we have established the counting rate of 14C ions at between 60–120 s–1.

Type
I. Sample Preparation and Measurement Techniques
Information
Radiocarbon , Volume 34 , Issue 3: Proceedings of the 14th International Radiocarbon Conference , 1992 , pp. 458 - 467
Copyright
Copyright © The American Journal of Science 

References

Betz, H. D. 1972 Charge changing in solids and gasses. Reviews of Modern Physics 44: 465.CrossRefGoogle Scholar
Beukens, R. P. 1990 High-precision intercomparison at IsoTrace. In Scott, E. M., Long, A. and Kra, R. S., eds., Proceedings of the International Workshop on Intercomparison of Radiocarbon Laboratories. Radiocarbon 32(3): 335–339.CrossRefGoogle Scholar
Brown, K. L. 1979 Achromatic magnetic deflection systems. IEEE Transactions on Nuclear Sciences NS-26: 3490–3500.CrossRefGoogle Scholar
Carey, D. C. 1981 Nuclear Instruments and Methods 189: 171.Google Scholar
Elmore, D. and Phillips, F. M. 1987 Accelerator mass spectrometry. Science 236: 543–5503.CrossRefGoogle ScholarPubMed
Jones, G. A., McNichol, A. P., von Reden, K. F. and Schneider, R. J. 1990 The National Ocean Sciences AMS Facility at Woods Hole Oceanographic Institution. In Yiou, F. and Raisbeck, G. M., eds., Proceedings of the 5th International Conference on Accelerator Mass Spectrometry. Nuclear Instruments and Methods B52: 278–284.CrossRefGoogle Scholar
Litherland, A. E. and Kilius, L. R. 1990 A recombinator for radiocarbon accelerator mass spectrometry. In Yiou, F. and Raisbeck, G. M., eds., Proceedings of the 5th International Conference on Accelerator Mass Spectrometry. Nuclear Instruments and Methods B52: 375–377.CrossRefGoogle Scholar
Purser, K. H., Galejs, A., Rose, P. H., Wittkower, A. B. and Van de Graaff, R. J. 1965 Measurements on the performance of inclined-field acceleration tubes. Review of Scientific Instruments 36: 453–461.CrossRefGoogle Scholar
Purser, K. H., Liebert, R. B. and Russo, C. J. 1980 MACS: An accelerator-based radioisotope measuring system. In Stuiver, M. and Kra, R. S., eds., Proceedings of the 10th International 14C Conference. Radiocarbon 22(3): 794–806.CrossRefGoogle Scholar
Purser, K. H. and Litherland, A. E. 1990 The elimination of charge changing backgrounds in an AMS radiocarbon system. In Yiou, F. and Raisbeck, G. M., eds., Proceedings of the 5th International Conference on Accelerator Mass Spectrometry. Nuclear Instruments and Methods B52: 424–427.CrossRefGoogle Scholar
Purser, K. H., Smick, T. H., Litherland, A. E., Beukens, R. P., Kieser, W. E. and Kilius, L. R. 1988 A third generation 14C mass spectrometer. Nuclear Instruments and Methods B35: 284–291.CrossRefGoogle Scholar
Purser, K. H., Smick, T. H. and Purser, R. K. 1990 A precision 14C accelerator mass spectrometer. In Yiou, F. and Raisbeck, G. M., eds., Proceedings of the 5th International Conference on Accelerator Mass Spectrometry. Nuclear Instruments and Methods B52: 263–268.CrossRefGoogle Scholar
Southon, J. R., Nelson, D. E. and Vogel, J. S. 1990 Injection systems for AMS: Simultaneous versus sequential. In Yiou, F. and Raisbeck, G. M., eds., Proceedings of the 5th International Conference on Accelerator Mass Spectrometry. Nuclear Instruments and Methods B52: 370–374.CrossRefGoogle Scholar
Vogel, J. S., Nelson, D. E. and Southon, J. R. 1989 Accuracy and precision in dating microgram carbon samples. Radiocarbon 31(2): 145–149.CrossRefGoogle Scholar
Vogel, J. S., Southon, J. R. and Nelson, D. E 1987 Catalyst and binder effects in the use of filamentous graphite for AMS. In Gove, H. E., Litherland, A. E. and Elmore, D., eds., Proceedings of the 4th International Symposium on Accelerator Mass Spectrometry. Nuclear Instruments and Methods B29: 50–56.CrossRefGoogle Scholar
Von Reden, K. F., Jones, G. A., Schneider, R. J., McNichol, A. P., Cohen, G. J. and Purser, K. H. 1992 The new National Ocean Sciences Accelerator Mass Spectrometer Facility at Woods Hole Oceanographic Institution: Progress and first results. Radiocarbon, this issue.CrossRefGoogle Scholar