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Correlations between the activities of a gamma-ray emitter calculated from different peaks in the spectrum

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Abstract

A model for calculating correlations between the activities of the same gamma-ray emitter calculated from different peaks in its spectrum is presented. The correlation coefficients can be expressed by the relative uncertainties of the input quantities. The use of this model in the calculation of the mean activity prevents the calculation of an excessively small uncertainty of the mean, since averaging of correlated uncertainty components is avoided.

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References

  1. ISO (1995) Guide to the expression of uncertainties in measurement. International Organization for Standardization (ISO), Switzerland

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Acknowledgments

The authors wish to thank Mr Mike Woods who brought the problem of correlations in averaging to their attention.

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Authors and Affiliations

  1. “Jožef Stefan” Institute, Jamova 39, 1000, Ljubljana, Slovenia

    Denis Glavič-Cindro, Matjaž Korun & Branko Vodenik

Authors
  1. Denis Glavič-Cindro
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  2. Matjaž Korun
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  3. Branko Vodenik
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Corresponding author

Correspondence to Matjaž Korun.

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Glavič-Cindro, D., Korun, M. & Vodenik, B. Correlations between the activities of a gamma-ray emitter calculated from different peaks in the spectrum. Accred Qual Assur 9, 473–477 (2004). https://doi.org/10.1007/s00769-004-0825-y

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  • DOI: https://doi.org/10.1007/s00769-004-0825-y

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