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    A 23-Year Retrospective Blind Check of Accuracy of the Copenhagen Radiocarbon Dating System

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    Author
    Rasmussen, Kaare L.
    Tauber, Henrik
    Bonde, Niels
    Christensen, Kjeld
    Theodórsson, Páll
    Issue Date
    1999-01-01
    Keywords
    carbon 14 dating laboratory
    Denmark
    Copenhagen Denmark
    calibration
    statistical analysis
    accuracy
    interlaboratory comparison
    tree rings
    isotope ratios
    Europe
    Western Europe
    Scandinavia
    methods
    C 14
    carbon
    isotopes
    radioactive isotopes
    C 13 C 12
    stable isotopes
    absolute age
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    Citation
    Rasmussen, K. L., Tauber, H., Bonde, N., Christensen, K., & Theodórsson, P. (1999). A 23-year retrospective blind check of accuracy of the Copenhagen radiocarbon dating system. Radiocarbon, 41(1), 9-15.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/654408
    DOI
    10.1017/S0033822200019299
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    A 23-yr record of the measuring accuracy of the Copenhagen radiocarbon dating laboratory has retrospectively been provided through a true blind test. A total of 92 samples of oak from old tree trunks were dated in the period 1971 to 1993 and their dendrochronological age determined independently. The 14C activity of the dendrochronological samples measured in the Copenhagen radiocarbon laboratory was compared to the activity of the tree rings of the same age measured by Stuiver and Pearson (1993) for calibration purposes. The average difference was found to be 54 +/72 14C yr. The results further indicate that the actual standard deviation is only 7% higher than that quoted by the laboratory. The investigation has shown a long-term stability of laboratory accuracy with no systematic laboratory variations either with respect to sample age or to the time of measurement from 1971 to 1993.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200019299
    Scopus Count
    Collections
    Radiocarbon, Volume 41, Number 1 (1999)

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