TADDEI, M.H.T.MACACINI, J.F.VICENTE, R.MARUMO, J.T.TERREMOTO, L.A.A.2015-01-062015-01-062015TADDEI, M.H.T.; MACACINI, J.F.; VICENTE, R.; MARUMO, J.T.; TERREMOTO, L.A.A. Determination of scaling factors to estimate the radionuclide inventory of wastes from the IEA-R1 research reactor. <b>Journal of Radioanalytical and Nuclear Chemistry</b>, v. 303, n. 3, p. 2467-2481, 2015. DOI: <a href="https://dx.doi.org/10.1007/s10967-014-3789-3">10.1007/s10967-014-3789-3</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/23222.0236-5731http://repositorio.ipen.br/handle/123456789/23222Regulations for transfer and final disposal of radioactive waste require that the inventory of radionuclides for each package enclosing such waste must be estimated and declared. In this work, the scaling factor methodology was applied successfully to estimate the inventory of radionuclides in spent ion-exchange resins and spent activated charcoal, both with low and intermediateactivity level, from the IEA-R1 nuclear research reactor. Scaling factors or correlation functions were obtained linking the activity concentrations of 15 difficult to measure nuclides with two gamma-rays emitting key nuclides, reducing exposure to ionizing radiation, contamination risks and operational costs.2467-2481openAccessiear-1 reactorradioactive waste manangementradioactive waste disposaldosimetryradiation dose distributionsradiation dose unitsmeasuring instrumentsnuclear decayradiochemical analysisscalerspulse analyzerscorrelation functionscobalt 60cesium 137Artigo de periódico330310.1007/s10967-014-3789-3https://orcid.org/0000-0003-3010-969131.81