Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1878703 | Applied Radiation and Isotopes | 2014 | 4 Pages |
•188 samples were prepared and distributed to 39 participating laboratories.•528 radionuclide assays have been performed.•Types of nuclides varied from natural to man-made radionuclides.•A perceptible laboratory performance improvement is observed.
Six comparison exercises on radioactivity measurement by γ-spectrometry have been organized by NIRP in China since 2007. The type of measured nuclides changed from natural to man-made over this period. A total of 188 samples were prepared and distributed to 39 different participating laboratories and 528 radionuclide assays have been performed. A perceptible laboratory performance improvement was observed with the average percentage of acceptable scores being 87% in 2008, increasing to 92% in 2012.