Browsing by Subject "NI-63"

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  • Leskinen, Anumaija; Gautier, Celine; Räty, Antti; Kekki, Tommi; Laporte, Elodie; Giuliani, Margaux; Bubendorff, Jacques; Laurila, Julia Pauliina; Kurhela, Kristian Otto Aleksi; Fichet, Pascal; Salminen-Paatero, Susanna (2021)
    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 H-3, C-14, Cl-36, Ca-41, Fe-55 and Ni-63 in an activated concrete. In addition, gamma emitters, namely Eu-152 and Co-60, 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.