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    Performance Evaluation of the New AMS System at Accium BioSciences

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    Author
    Zoppi, Ugo
    Crye, James
    Song, Qi
    Arjomand, Ali
    Issue Date
    2007-01-01
    
    Metadata
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    Citation
    Zoppi, U., Crye, J., Song, Q., & Arjomand, A. (2007). Performance evaluation of the new AMS system at Accium BioSciences. Radiocarbon, 49(1), 171-180.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/653665
    DOI
    10.1017/S0033822200041990
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    A new compact accelerator mass spectrometry (AMS) system dedicated to the measurement of radiocarbon has been commissioned at the Accium BioSciences headquarters in Seattle. The entire facility (including ancillary laboratories for the preparation of graphite targets) has been designed to handle samples with a wide range of 14C concentrations. In this paper, we discuss the technical details of the new facility and present performance test results demonstrating state-of-the-art capabilities. In particular, modern samples can be readily measured with 0.3% precision and accuracy, machine background levels are consistently in the low 1016 (14C/12C), and chemical background is approximately equivalent to a fraction of modern of 0.004. In addition, when 100-times-modern samples were processed, no increase in background was observed, either during sample processing or during AMS measurement. This corresponds to a dynamic range for 14C analysis of 6 orders of magnitude.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200041990
    Scopus Count
    Collections
    Radiocarbon, Volume 49, Number 1 (2007)

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