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    Scintillation Cocktail Optimization for 14C Dating Using the Packard 2000CA/LL and 2260XL

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    Author
    Anderson, Robert
    Cook, G. T.
    Issue Date
    1991-01-01
    Keywords
    butyl
    Packard 2000CA LL
    Packard 2260XL
    aromatic hydrocarbons
    benzene
    hydrocarbons
    instruments
    data processing
    experimental studies
    organic compounds
    scintillations
    organic materials
    methods
    geochronology
    C 14
    carbon
    isotopes
    radioactive isotopes
    absolute age
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    Citation
    Anderson, R., & Cook, G. T. (1991). Scintillation cocktail optimization for 14C dating using the Packard 2000CA/LL and 2260XL. Radiocarbon, 33(1), 1-7.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/653117
    DOI
    10.1017/S0033822200013151
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    In terms of both quenching and, in particular, counting efficiency, scintillation counters employing burst counting circuitry are sensitive to changes in scintillant concentration. Our research demonstrates that there are plateau regions where neither parameter is significantly influenced by moderate changes in a cocktail containing butyl PBD and bis MSB. One of these, consisting of butyl PBD 2.8mg.g-1 and bis MSB 3mg.g-1 of benzene is recommended for these counters, as it enables open window counting efficiencies of ca 90% while exhibiting optimal resistance to quenching. A method for accurate dispensing of such small weights is also described.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200013151
    Scopus Count
    Collections
    Radiocarbon, Volume 33, Number 1 (1991)

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