EDMILSON BAMBALAS
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Artigo IPEN-doc 23952 Traceability from governamental producers of radiopharmaceuticals in measuring 18F in Brazil2016 - OLIVEIRA, A.E.; IWAHARA, A.; SILVA, C.J.; CRUZ, P.A.L.; POLEDNA, R.; SILVA, R.L.; LARANJEIRA, A.S.; DELGADO, J.U.; TAUHATA, L.; LOUREIRO, J.S.; TOLEDO, B.C.; BRAGHIROLLI, A.M.S.; ANDRADE, E.A.L.; SILVA, J.L.; HERNANDES, H.O.K.; VALENTE, E.S.; DALLE, H.M.; ALMEIDA, V.M.; SILVA, T.G.; FRAGOSO, M.C.F.; OLIVEIRA, M.L.; NASCIMENTO, E.S.S.; OLIVEIRA, E.M.; HERRERIAS, R.; SOUZA, A.A.; BAMBALAS, E.; BRUZINGA, W.A.Since the inception of its proficiency test program to evaluate radionuclide measurement in hospitals and clinics, the National Metrology Laboratory of Ionizing Radiation-LNMRI, that represents Brazilian National Metrology Institute (NMI) for ionizing radiation has expanded its measurement and calibration capability. Requirements from the National Health Surveillance Agency from Ministry of Health (ANVISA), to producers of radiopharmaceuticals provided an opportunity to improve the full traceability chain to the highest level. Fluorodeoxyglucose (FDG-18F) is the only radiopharmaceutical simultaneously produced by all Brazilian radiopharmaceutical production centers (RPCs). By running this proficiency test, LNMRI began to provide them with the required traceability. For evaluation, the ratio of RPC to reference value results and ISO/IEC17043:2010 criteria were used. The reference value established as calibration factor on the secondary standard ionization chamber was obtained from three absolute measurements systems, and routinely confirmed in each round of proficiency test by CIEMAT/NIST liquid scintillation counting. The γ-emitting impurities were checked using a High-Purity Germanium (HPGe) detector. The results show that Brazilian RPCs are in accordance with (accuracy within 710%) the Brazilian standard for evaluation of measurements with radionuclide calibrators (CNEN NN 3.05., 2013). Nevertheless, the RPCs should improve the methodology of uncertainty estimates, essential when using the statistical criteria of ISO/IEC 17043 standard, in addition to improving accuracy to levels consistent with their position in the national traceability chainPublicação IPEN-doc 03010 Determinacao de perfis de concentracoes de cesio-137 nos focos principais do acidente radiologico ocorrido em GoianiaGO1988 - ROCCA, H.C.C.; AOKI, P.E.; ENOKIHARA, C.T.; ROSTELATO, M.E.C.M.; LEPKI, V.; BAMBALAS, E.Artigo IPEN-doc 06592 Determinacoes de vazoes de efluentes nos canais da Companhia Siderurgica Nacional - CSN, em Volta Redonda, RJ, com utilizacao de tracador radioativo1999 - BAMBALAS, E.; BRUZINGA, W.A.; ROCCA, H.C.C.; AOKI, P.E.; MIRANDA, M.A.M.; SANTOS, N.J.Artigo IPEN-doc 01688 Determinacao de perfis de concentracoes de cesio-137 nos focos principais do acidente radiologico ocorrido em Goiania, GO1988 - ROCCA, H.C.C.; AOKI, P.E.; ENOKIHARA, C.T.; ROSTELATO, M.E.C.M.; LEPKI, V.; BAMBALAS, E.Artigo IPEN-doc 07065 Natural radionuclides in drinking water supplies of Sao Paulo State, Brazil and consequent population doses2001 - OLIVEIRA, J.; MAZZILLI, B.P.; SAMPA, M.H.O.; BAMBALAS, E.