EC intercomparisons for laboratories monitoring environmental radioactivity

U. Wätjen, Zs Szántó, T. Altzitzoglou, G. Sibbens, J. Keightley, M. Hult

Research output: Contribution to journalArticle

5 Citations (Scopus)


International measurement comparisons are organised regularly for EU laboratories involved in monitoring radioactivity, with emphasis on meeting routine measurement conditions. Using the recent comparison of 137Cs in air filters as an example, the whole cycle is described: establishment of traceable reference values, spiking of individual filters for the comparison and their quality assurance, treatment and measurement of filters in the participating laboratories and evaluation of comparison results. The treatment of an individual result, deviating widely from the reference value, is discussed. Monte-Carlo simulations allow to estimate the maximum errors possibly made due to a non-suitable measurement geometry.

Original languageEnglish
Pages (from-to)1108-1113
Number of pages6
JournalApplied Radiation and Isotopes
Issue number10-11
Publication statusPublished - Oct 1 2006



  • Cs in air
  • Environmental radioactivity
  • Interlaboratory comparison
  • Spiked filter
  • Traceable reference value

ASJC Scopus subject areas

  • Radiation

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