Intercomparison exercise on difficult to measure radionuclides in activated concrete—statistical analysis and comparison with activation calculations

Anumaija Leskinen (Corresponding Author), Celine Gautier, Antti Räty, Tommi Kekki, Elodie Laporte, Margaux Giuliani, Jacques Bubendorff, Julia Laurila, Kristian Kurhela, Pascal Fichet, Susanna Salminen-Paatero

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Abstract

This paper reports the results obtained in a Nordic Nuclear Safety Research project during the second intercomparison exercise for the determination of difficult to measure radionuclides in decommissioning waste. Eight laboratories participated by carrying out radiochemical analysis of 3H, 14C, 36Cl, 41Ca, 55Fe and 63Ni in an activated concrete. In addition, gamma emitters, namely 152Eu and 60Co, were analysed. The assigned values were derived from the submitted results according to ISO 13,528 standard and the performance assessments were determined using z scores. The measured results were compared with activation calculation result showing varying degree of comparability.

Original languageEnglish
Pages (from-to)945-958
Number of pages14
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume329
Issue number2
DOIs
Publication statusPublished - Aug 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Biological shield
  • Concrete
  • Decommissioning waste
  • Difficult to measure radionuclides
  • Intercomparison exercise
  • ISO 13,528

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