Comparison of ¹⁴C liquid scintillation counting at NIST and NRC Canada

From National Research Council Canada

Alternative titleComparison of 14C liquid scintillation counting at NIST and NRC Canada
DOIResolve DOI: https://doi.org/10.1016/j.apradiso.2015.11.007
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Name affiliation
  1. National Research Council of Canada. Measurement Science and Standards
FormatText, Article
Proceedings titleApplied Radiation and Isotopes
Conference20th International Conference on Radionuclide Metrology and its Applications, June 8-11, 2015, Vienna, Austria
ISSN0969-8043
Volume109
Pages30–35
Subjectefficiency tracing; CNET; triple-to-double coincidence ratio; TDCR; ¹⁴C; bilateral comparison; benzoate; hexadecane; cocktail instability; beta spectrum shape; shape factor
Abstract
An informal bilateral comparison of ¹⁴C liquid scintillation (LS) counting at the National Research Council of Canada (NRC) and the National Institute of Standards and Technology (NIST) has been completed. Two solutions, one containing ¹⁴C-labeled sodium benzoate and one containing ¹⁴C-labeled n-hexadecane, were measured at both laboratories. Despite observed LS cocktail instabilities, the two laboratories achieved accord in their standardizations of both solutions. At the conclusion of the comparison, the beta spectrum used for efficiency calculations was identified as inadequate and the data were reanalyzed with different inputs, improving accord.
Publication date
PublisherElsevier
Elsevier
LanguageEnglish
Peer reviewedYes
IdentifierS0969804315302360
NPARC number23000101
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