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Uncertainty assessment of methods for chemical yield determination in measurement of radioactive strontium

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Abstract

Chemical yield determination can be a limiting source to the combined standard uncertainty in measurements of radionuclides. Therefore, the combined standard uncertainties in yield determination in the measurement of radioactive strontium using two methods were evaluated. The two methods compared were the measurement of stable strontium by atomic absorption spectrometry (AAS) and the gamma spectrometric measurement of 85Sr. The evaluation showed that using gamma spectrometry for yield determination can reduce the combined standard uncertainty by a factor of three compared to AAS. The expanded uncertainties of AAS and gamma spectrometry were calculated to be 10% and 3.3% (k = 2), respectively.

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Authors and Affiliations

  1. Swedish Defence Research Agency (FOI), CBRN Defence and Security, 901 82, Umeå, Sweden

    Anna Vesterlund, Annika Tovedal, Ulrika Nygren & Henrik Ramebäck

Authors
  1. Anna Vesterlund
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  2. Annika Tovedal
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  3. Ulrika Nygren
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  4. Henrik Ramebäck
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Correspondence to Anna Vesterlund.

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Vesterlund, A., Tovedal, A., Nygren, U. et al. Uncertainty assessment of methods for chemical yield determination in measurement of radioactive strontium. J Radioanal Nucl Chem 282, 951–955 (2009). https://doi.org/10.1007/s10967-009-0184-6

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  • DOI: https://doi.org/10.1007/s10967-009-0184-6

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