Title: Evaluation of a proficiency test of 131I, 134Cs and 137Cs in maize powder
Authors: SOBIECH-MATURA KATARZYNALUTTER GUILLAUMEVAN AMMEL RAFMARISSENS GERDHULT MIKAELEMTEBORG HAKAN
Citation: APPLIED RADIATION AND ISOTOPES vol. 162 p. 109156
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2020
JRC N°: JRC119518
ISSN: 0969-8043 (online)
URI: https://www.sciencedirect.com/science/article/pii/S0969804319304208?via%3Dihub
https://publications.jrc.ec.europa.eu/repository/handle/JRC119518
DOI: 10.1016/j.apradiso.2020.109156
Type: Articles in periodicals and books
Abstract: In 2017, JRC-Geel organised a proficiency test for 120 participants on the massic activity determination of 131I, 134Cs and 137Cs in maize powder. The proficiency test material was produced by spiking blank maize powder. The material was characterised for its radioactive content using γ-ray spectrometry. The z scores of the reported massic activity results were acceptable in 92% of the results for 131I, and in 94% for both 134Cs and 137Cs. The ζ scores were consistent with the reference value for 66% of the results for 131I, 56% for 134Cs and 68% for 137Cs.
JRC Directorate:Nuclear Safety and Security

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