ELITA FONTENELE URANO DE CARVALHO

Resumo

Graduation at QuĆ­mica Industrial from Universidade Federal do CearĆ” (1978), master's at Nuclear Engineering from Universidade de SĆ£o Paulo (1992) and doctorate at Nuclear Engineering from Universidade de SĆ£o Paulo (2004). Has experience in Nuclear Engineering, focusing on Conversion, Enrichment and Manufacture of Nuclear Fuel, acting on the following subjects: combustivel nuclear, fluoreto, tratamento de efluentes, veneno queimavel and meio ambiente. (Text obtained from the CurrĆ­culo Lattes on October 8th 2021)


Possui graduaĆ§Ć£o em QuĆ­mica Industrial pela Universidade Federal do CearĆ” (1978), mestrado em Tecnologia Nuclear pela Universidade de SĆ£o Paulo (1992) e doutorado em Tecnologia Nuclear pela Universidade de SĆ£o Paulo (2004). Pesquisador do Instituto de Pesquisas EnergĆ©ticas e Nucleares da ComissĆ£o Nacional de Energia Nuclear. ExperiĆŖncia na Ć”rea de Engenharia de Materiais e QuĆ­mica com ĆŖnfase em ConversĆ£o, Enriquecimento, FabricaĆ§Ć£o de CombustĆ­vel Nuclear, Tratamento de efluentes radioativos e convencionais e reaproveitamento de resĆ­duos industriais e tĆ©cnicas de caracterizaĆ§Ć£o quĆ­mica de materiais. Membro do Instituto Nacional de Tecnologia- INCT para Reatores Nucleares Inovadores. Autor de capĆ­tulo de livro intitulado "Radioisotopes: Applications in Physical Sciences, 2011 ISBN: 9789533075105. TĆ­tulo do capĆ­tulo: Research Reactor Fuel Fabrication to Produce Radioisotopes. Professor de pĆ³s- graduaĆ§Ć£o da Universidade SĆ£o Paulo nas Ć”reas de caracterizaĆ§Ć£o de materiais e de combustĆ­vel nuclear. Professor visitante na Escola PolitĆ©cnica da Universidade de SĆ£o Paulo - modulo I e II de processamento de combustivel nuclear. Bolsista de Produtividade Desen. Tec. e ExtensĆ£o Inovadora 2 (Texto extraĆ­do do CurrĆ­culo Lattes em 08 out. 2021)

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  • Artigo IPEN-doc 29076
    Nickel electrodeposition in LEU metal foil annular targets to produce Mo-99
    2022 - IANELLI, RICARDO F.; SALIBA-SILVA, ADONIS M.; TAKARA, ERIKI M.; GARCIA NETO, JOSE; SOUZA, JOSE A.B.; CARVALHO, ELITA F.U. de; DURAZZO, MICHELANGELO
    The most used production route of Mo-99 is through the fission of U-235 in irradiation targets that are irradiated in research reactors. The annular target is a promisor design since it can incorporate high U-235 quantities, thus increasing the production yield of Mo-99. This target type uses a foil of uranium metal enveloped by a thin nickel foil that acts as a diffusion barrier. The process of uranium enveloping with nickel foil is today done manually. This operation risks the nickel foil breaking up during target assembling. In the present work, we studied the nickel electrodeposition over uranium metal foil surfaces to replace nickel foils. A pre-forming procedure of the uranium metal foil by calendering was developed to facilitate the assembling operation. The electrodeposition was done over the uranium foil pre-conformed in a tubular shape. An automated apparatus for electrodeposition of nickel in uranium tubular-shaped foil was developed. The results showed that the high nickel adherence to uranium metal depends on the proper activation of the uranium surface. Among the activation processes studied, the mechanical activation showed good adhesion of the nickel layer, with a loss of only 0.16% of uranium mass. Homogeneous and regular 12 Ī¼m thickness electrodeposited layers over the uranium metal were obtained. This work showed that the process could be used in continuous production technology, such as the production of irradiation targets.