RUANYTO WILLY CORREIA
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Artigo IPEN-doc 28351 New model for an epoxy-based brachytherapy source to be used in spinal cancer treatment2021 - SILVA, JOSE T.; SOUZA, CARLA D. de; ANGELOCCI, LUCAS V.; ROSERO, WILMMER A.A.; NOGUEIRA, BEATRIZ R.; CORREIA, RUANYTO W.; ZEITUNI, CARLOS A.; ROSTELATO, MARIA E.C.M.The present work described the cold fabrication of a P-32 radioactive source to be used in CNS cancer using epoxy resin. The epoxy plaque fabricated with Teflon mold presented better agreement. MCNP simulation evaluated the radiation dose. Special attention was given to factors that can impact dose distribution. Average dose was 16.44 ± 2.89% cGy/s. Differences of less than 0.01 cm in thickness within the plaque lead to differences of up to 12% in the dose rate.Artigo IPEN-doc 26143 Study and calibration of the HPGe detector for radionuclide analysis of iodine-1252019 - CORREIA, RUANYTO W.; ROSTELATO, MARIA E.C.M.; ZEITUNI, CARLOS A.In this work, a theoretical-experimental methodology was developed for the calibration of HPGe Detector for quantitative analysis of iodine-125. Photopick efficiencies was measured between 0 - 40 keV using a certified calibration source (iodine-129) with well-known activity. The efficiency curve was determined for an energy range that covers the region of interest for iodine-125 (0 - 40 keV). The calibrate spectrum was obtained for study and the result was saved in the detector directory for future analysis and determination of the iodine-125 activity.Resumo IPEN-doc 26057 Estudo e calibração de detector HPGe para análise radionuclídica de iodo-1252019 - CORREIA, R.W.; ROSTELATO, M.E.C.M.; ZEITUNI, C.A.