TADDEI, MARIA H.T.MACACINI, JOSE F.VICENTE, ROBERTOMARUMO, JULIO T.TERREMOTO, LUIS A.A.2017-05-112017-05-112017TADDEI, MARIA H.T.; MACACINI, JOSE F.; VICENTE, ROBERTO; MARUMO, JULIO T.; TERREMOTO, LUIS A.A. Impact of operational changes on the scaling factors of radioactive wastes from the IEA-R1 research reactor. <b>Journal of Radioanalytical and Nuclear Chemistry</b>, v. 311, n. 3, p. 1687-1696, 2017. DOI: <a href="https://dx.doi.org/10.1007/s10967-016-5115-8">10.1007/s10967-016-5115-8</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/27440.0236-5731http://repositorio.ipen.br/handle/123456789/27440Nowadays, the scaling factor methodology is widely used in order to estimate the activity concentration of difficult to measure nuclides in low- and intermediatelevel waste from nuclear reactors. However, very few experimental studies evaluate how operational changes in the reactors affect scaling factors. The present work examines the impact of operational changes on the scaling factors that were determined for spent ion-exchange resins and spent activated charcoal permanently withdrawn as radioactive wastes from the water cleanup system of the IEA-R1 nuclear research reactor.1687-1696openAccessactivated carbonauxiliary water systemsintermediate-level radioactive wastesion exchange materialslow-level radioactive wastesreactor operationscalingspent fuel elementsArtigo de periódico331110.1007/s10967-016-5115-8https://orcid.org/0000-0003-3010-969136.52