Comparison of intercomparison results of gamma ray spectrometry of spiked and real samples

Denis Glavič-Cindro

doi:10.1016/j.apradiso.2017.07.009

Comparison of intercomparison results of gamma ray spectrometry of spiked and real samples

Appl Radiat Isot. 2018 Apr:134:59-63. doi: 10.1016/j.apradiso.2017.07.009. Epub 2017 Jul 8.

Author

Denis Glavič-Cindro¹

Affiliation

¹ Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia. Electronic address: denis.cindro@ijs.si.

PMID: 28733117
DOI: 10.1016/j.apradiso.2017.07.009

Abstract

The quality and comparability of results of different comparison schemes depend strongly on how the samples were prepared and how the reference values were determined. To test the influence of different approaches to preparing comparison samples and determination of reference values on the final evaluation of participants' results, analyses of S-shapes for Cs-134 and Cs-137 in different comparison schemes in time period 1986-2016 were performed. This study pointed out significant improvement in the quality of performance of comparison tests of selected providers.

Keywords: Artificial radionuclides; Comparisons; Cs-134; Cs-137; Environmental samples; High resolution gamma-ray spectrometry; Proficiency tests; Radioactivity; Reference value; S-shape.