Abstract
At the occasion of the EUROMET Workshop on Ionising Radiation and Radioactivity at the NPL, it was decided to carry out a second intercomparison on air kerma rate (AKR) and activity measurements on 192Ir brachytherapy sources in the frame of EUROMET project no. 219. The intercomparison has shown that both air kerma rate measurements and activity measurements of 192Ir brachytherapy wires are not trivial. One of the drawbacks is the appreciable inhomogeneity of the wires. Disregarding some outliers, the spread of the AKR measurements was below 1.5%, while the variation in the activity measurements was very large, due to reasons which are not completely understood.
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