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Louvain Natural Radiocarbon Measurements IV

Published online by Cambridge University Press:  18 July 2016

E. Gilot
Affiliation:
Department of Nuclear Chemistry, University of Louvain, Louvain, Belgium
N. Ancion
Affiliation:
Department of Nuclear Chemistry, University of Louvain, Louvain, Belgium
P. C. Capron
Affiliation:
Department of Nuclear Chemistry, University of Louvain, Louvain, Belgium
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The following list covers most of the samples measured at the Louvain C14 laboratory since the last list (Louvain III).

The method is essentially the same as the one used for the work described in the previous lists. A CH4 proportional counter, 0.6 L volume, operating at 3 atm pressure, is used. Equipment and counting techniques have been described in Louvain I. Dates are computed on the basis of the Libby half-life, 5570 yr, and the zero of the age scale is A.D. 1950. Ages are quoted with 1σ experimental error, which includes the counting variations of the sample as well as that of the background and the contemporary standard. As modern standard we now use NBS oxalic-acid standard or wood taken from A.D. 1870 to A.D. 1900 tree rings. No differences between the two standards have been observed.

Type
Research Article
Copyright
Copyright © The American Journal of Science 

References

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