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

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 14 C, 55 Fe and 63 Ni activity concentrations in RPV st...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2020-06, Vol.324 (3), p.1303-1316
Main Authors: Leskinen, Anumaija, Salminen-Paatero, Susanna, Gautier, Celine, Räty, Antti, Tanhua-Tyrkkö, Merja, Fichet, Pascal, Kekki, Tommi, Zhang, Wenzhong, Bubendorff, Jacques, Laporte, Elodie, Lambrot, Gabriel, Brennetot, René
Format: Article
Language:English
Subjects:
Accuracy
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Laboratories
Mathematical analysis
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Pressure vessels
Radioisotopes
Statistical analysis
Statistical methods
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Summary: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 14 C, 55 Fe and 63 Ni activity concentrations in RPV steel. In addition, some laboratories also analysed 60 Co 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 55 Fe and 63 Ni results whereas 14 C results had significant differences. 60 Co results were in quite good agreement.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-020-07181-x