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The Oxford Radiocarbon Accelerator Facility

Published online by Cambridge University Press:  18 July 2016

Richard Gillespie
Affiliation:
Research Laboratory for Archaeology and the History of Art, Oxford University 6 Keble Road, Oxford OX1, 3QJ, England
R E M Hedges
Affiliation:
Research Laboratory for Archaeology and the History of Art, Oxford University 6 Keble Road, Oxford OX1, 3QJ, England
N R White
Affiliation:
Research Laboratory for Archaeology and the History of Art, Oxford University 6 Keble Road, Oxford OX1, 3QJ, England
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The Oxford 14C accelerator has operated with beam for some 400 hours. This report describes the progress made towards achieving dates from milligram samples with the required accuracy of better than 2%. In summary, it shows how 14C is relatively easily detected, but that the overall beam optical system is, at present, rather sensitive to effects which prevent reliable maintenance of the necessary isotope ratio stability. These effects can probably be eliminated by careful attention to details of the design rather than by major modifications.

Type
VIII. Technical Aspects of Accelerator Mass Spectrometry
Copyright
Copyright © The American Journal of Science 

References

Hedges, REM, Wand, JO, and White, NR, 1980, The production of C- beams for radiocarbon dating with accelerators: Nuclear Instruments and Methods, v 173, p 409421.Google Scholar
White, NR, in press, The inverted spherical ionizer sputter ion source (IS3): Nuclear Instruments and Methods, in press.Google Scholar