NILBERTO HEDER MEDINA
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Artigo IPEN-doc 20876 Measurement of fusion cross sections for sup(16)O+sup(16)(O)2015 - DUARTE, J.G.; GASQUES, L.R.; OLIVEIRA, J.R.B.; ZAGATTO, V.A.B.; CHAMON, L.C.; MEDINA, N.H.; ADDED, N.; SEALE, W.A.; ALCANTARA NUNEZ, J.A.; ROSSI JUNIOR, E.S.; AMADOR VALENZUELA, P.; LEPINE SZILY, A.; FREITAS, A.S.; SCARDUELLI, V.; AGUIAR, V.A.P.; SHORTO, J.M.B.In earlier works, the fusion cross section for the 16O+16O reaction has been measured using different techniques. In the present work, we have obtained an experimental excitation function for 16O+16O using γ-ray spectroscopy. The measurements were performed at center-of-mass energies between 8.28 and 12.25 MeV. The theoretical predictions obtained with a coupled-channel model are consistent with the experimental data. From our analyses, the extrapolated S-factor value at 6.6 MeV, corresponding to the Gamow peak energy for core oxygen burning conditions, is about 3.6 × 1025 MeV barn.Resumo IPEN-doc 17991 In-beam gamma-ray spectroscopy of sup(66)Ga: Preliminary results2009 - ALLEGRO, P.R.P.; MEDINA, N.H.; OLIVEIRA, J.R.B.; LINARES, R.; RIBAS, R.V.; CYBULSKA, E.W.; SEALE, W.A.; TOUFEN, D.L.; SILVEIRA, M.A.G.; ZAHN, G.S.; GENEZINI, F.A.Artigo IPEN-doc 19134 The half-Life of sup(131g,m)Te2013 - RUIVO, J.C.; ZAMBONI, C.B.; MEDINA, N.H.; OLIVEIRA, J.R.B.Artigo IPEN-doc 16771 Soil analysis using the semi-parametric NAA technique2007 - ZAMBONI, C.B.; SILVEIRA, M.A.G.; MEDINA, N.H.Artigo IPEN-doc 12019 Viability of soil analysis different neutron assemblies2007 - SILVEIRA, M.A.G.; MEDINA, N.H.; ZAMBONI, CIBELE B.