Intercomparison exercise on difficult to measure radionuclides in activated steel: statistical analysis of radioanalytical results and activation calculations

Anumaija Leskinen (Corresponding Author), Susanna Salminen-Paatero, Celine Gautier, Antti Räty, Merja Tanhua-tyrkkö, Pascal Fichet, Tommi Kekki, Wenzhong Zhang, Jacques Bubendorff, Elodie Laporte, Gabriel Lambrot, René Brennetot

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This paper reports the results obtained during an intercomparison exercise for the determination of difficult to measure radionuclides in activated reactor pressure vessel (RPV) steel samples. In total, eight laboratories participated analysing 14C, 55Fe and 63Ni activity concentrations in RPV steel. In addition, some laboratories also analysed 60Co activity concentrations. Corresponding activity concentrations were also determined using activation calculations. Robust statistical techniques were utilised for the analysis of the results according to ISO 13528 standard. The results showed good agreement for 55Fe and 63Ni results whereas 14C results had significant differences. 60Co results were in quite good agreement.
Original languageEnglish
Pages (from-to)1303-1316
Number of pages14
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume324
Early online date1 May 2020
DOIs
Publication statusPublished - 1 Jun 2020
MoE publication typeA1 Journal article-refereed

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Keywords

  • intercomparison exercise
  • radioactive waste
  • reactor pressure vessel steel activation
  • ISO 13528

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