SANTOS, W.S.GONALVES, P.E.BELINATO, W.CALDAS, L.V.E.PERINI, A.P.NEVES, L.P.2017-03-202017-03-20SANTOS, W.S.; GONALVES, P.E.; BELINATO, W.; CALDAS, L.V.E.; PERINI, A.P.; NEVES, L.P. The influence of different 192Ir sources geometries to the energy deposition. In: BRAZILIAN CONGRESS ON METROLOGY, 8th, 29 de novembro - 04 de dezembro, 2015, Bento Gonçalves, RS. <b>Proceedings...</b> p. 1-5. Disponível em: http://repositorio.ipen.br/handle/123456789/27221.http://repositorio.ipen.br/handle/123456789/27221In this paper, various simpli cations of the HDR source Varian VariSource Classic model, in which 192Ir as a radionuclide is used, were compared. These simpli cations were carried out by Monte Carlo simulations, using the MCNPX 2.7.0 code. The different sources were compared through a distribution of energy deposition in a water phantom. Our results indicated that small simpli cations will present no in uence on the source response, and the removal of the entire capsule surrounding the radionuclide will present a difference of just 0.53% in the nal response.1-5openAccessenergy absorptioniridium 192monte carlo methoddose ratesradiotherapyTexto completo de eventohttps://orcid.org/0000-0002-7362-2455