Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the SCK•CEN, Belgium and the BIPM in 60Co gamma radiation

Research outputpeer-review


A first key comparison of the standards for air kerma of the Laboratory for Nuclear Calibrations (LNK) from the Studiecentrum voor Kernenergie - Centre d'Etude de l'Energie Nucleaire (SCK•CEN), Belgium and of the Bureau International des Poids et Mesures (BIPM) was carried out in the 60Co radiation beam of the BIPM in September 2016. The comparison result, evaluated as a ratio of the SCK•CEN and the BIPM standards for air kerma, is 1.0021 with a combined standard uncertainty of 2.6  10–3. The results for an indirect comparison made at the same time are consistent with the direct results at the level of 7 parts in 10^4. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database.
Original languageEnglish
Article number06004
Number of pages11
StatePublished - 15 Jan 2017

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