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Recent 14C Measurements with the Chalk River Tandem Accelerator

Published online by Cambridge University Press:  18 July 2016

R M Brown ,
H R Andrews ,
G C Ball ,
Neil Burn ,
W G Davies ,
Yoshio Imahori ,
J C D Milton  and
Wayne Workman
R M Brown
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
H R Andrews
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
G C Ball
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
Neil Burn
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
W G Davies
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
Yoshio Imahori
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
J C D Milton
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
Wayne Workman
Affiliation:
Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1JO, Canada
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Abstract

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The Chalk River Tandem Accelerator Mass Spectrometry System has reached a state of reliable measurement of 14C using 2 to 5mg elemental carbon prepared by Mg reduction of CO2. For two comparisons of a near-modern unknown with the NBS oxalic acid standard we obtain a total error of ∼±4.5%, consisting of a random system error of about ±3.5% combined with the statistical counting error. Measurements have been made on 70 samples in 30 days of running time during the past year. Samples included deep rock carbonates, cosmogenic 14C in meteorites, charcoal from earthquake fault zones, collagen of bone artifacts and fossil beetle-fragments.

Type
VIII. Technical Aspects of Accelerator Mass Spectrometry
Information
Radiocarbon , Volume 25 , Issue 2: 11th International Radiocarbon Conference , 1983 , pp. 701 - 710
Copyright
Copyright © The American Journal of Science 

References

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