KOVACS, LUCIANAZAMBONI, C.B.DALAQUA JUNIOR, LEONARDO2014-11-172014-11-182015-04-022014-11-172014-11-182015-04-02KOVACS, LUCIANA; ZAMBONI, C.B.; DALAQUA JUNIOR, LEONARDO. The determination of thermal neutron cross section of sup(81)Br. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st, September 27 - October 2, 2009, Rio de Janeiro, RJ. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/11950.http://repositorio.ipen.br/handle/123456789/11950In this investigation several standard materials were used to determine the thermal neutron cross section of 81Br. This nuclear parameter is an important data to perform several quantitative investigations, mainly in medical area. In other to confirm and to reduce the uncertainty, a new measurement was preformed using thermal neutron at IEA-R1 nuclear reactor of IPEN/CNEN-SP. The result obtained is compatible with the tabulated value and present small uncertainly.openAccessbrazilian cnenbromine 81calibration standardscross sectionsiear-1 reactornuclear reactionsnumerical datathermal neutronsTexto completo de eventohttps://orcid.org/0000-0001-7766-2692