CABRAL, T.S.SILVA, C.N.M. daPOTIENS, M.P.A.SOARES, C.M.A.SILVEIRA, R.R.KHOURY, H.SAITO, V.FERNANDES, E.CARDOSO, W.F.OLIVEIRA, H.P.S. dePIRES, M.A.AMORIM, A.S. deBALTHAR, M.2019-02-042019-02-042018CABRAL, T.S.; SILVA, C.N.M. da; POTIENS, M.P.A.; SOARES, C.M.A.; SILVEIRA, R.R.; KHOURY, H.; SAITO, V.; FERNANDES, E.; CARDOSO, W.F.; OLIVEIRA, H.P.S. de; PIRES, M.A.; AMORIM, A.S. de; BALTHAR, M. Comparison for air kerma from radiation protection gamma-ray beams with brazilian network - 2016/2017. <b>Journal of Physics: Conference Series</b>, v. 975, p. 1-9, 2018. DOI: <a href="https://dx.doi.org/10.1088/1742-6596/975/1/012042">10.1088/1742-6596/975/1/012042</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29469.1742-6588http://repositorio.ipen.br/handle/123456789/29469The results of the comparison involving 9 laboratories in Brazil are reported. The measured quantity was the air kerma in 137Cs and 60Co, at the level of radioprotection. The comparison was conducted by the National Laboratory Metrology of Ionizing Radiation (LNMRI/IRD) from October 2016 to March 2017. The largest deviation between the calibration coefficients was 0.8% for 137Cs and 0.7% for 60Co. This proficiency exercise proved the technical capacity of the Brazilian calibration network in radiation monitors and the results were used by some in the implementation of the standard ISO/IEC 17025.1-9openAccesscalibration standardscesium 137cobalt 60gamma radiationinterlaboratory comparisonsionization chamberskermaradiation monitorsradiation protectionbrazilian cnenArtigo de periódico97510.1088/1742-6596/975/1/012042aguardandohttps://orcid.org/0000-0002-4049-6720Sem Percentil16.00