Two series of activity standards of 60Co in cast steel matrix, developed for the calibration of gamma-ray spectrometry systems in the metallurgical sector, were characterised using a European interlaboratory comparison among twelve National Metrology Institutes and one international organisation. The first standard, consisting of 14 disc shaped samples, was cast from steel contaminated during production ("originally"), and the second, consisting of 15 similar discs, from artificially-contaminated ("spiked") steel. The reference activity concentrations of 60Co in the cast steel standards were (1.077±0.019) Bq g-1 on 1 January 2013 12h00 UT and (1.483±0.022) Bq g-1 on 1 June 2013 12h00 UT, respectively. © 2016 The Authors.
60Co in cast steel matrix: A European interlaboratory comparison for the characterisation of new activity standards for calibration of gamma-ray spectrometers in metallurgy
Fazio, A.
2016-01-01
Abstract
Two series of activity standards of 60Co in cast steel matrix, developed for the calibration of gamma-ray spectrometry systems in the metallurgical sector, were characterised using a European interlaboratory comparison among twelve National Metrology Institutes and one international organisation. The first standard, consisting of 14 disc shaped samples, was cast from steel contaminated during production ("originally"), and the second, consisting of 15 similar discs, from artificially-contaminated ("spiked") steel. The reference activity concentrations of 60Co in the cast steel standards were (1.077±0.019) Bq g-1 on 1 January 2013 12h00 UT and (1.483±0.022) Bq g-1 on 1 June 2013 12h00 UT, respectively. © 2016 The Authors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.