BARIA, R.WATANABE, S.MUNITA, C.S.SILVA, P.S.C.TATUMI, S.H.2021-12-292021-12-29BARIA, R.; WATANABE, S.; MUNITA, C.S.; SILVA, P.S.C.; TATUMI, S.H. Thorium, uranium and potassium levels of Brazil geological sediment by gamma-ray spectrometer and instrumental neutron activation analysis. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, November 29 - December 2, 2021, Online. <b>Proceedings...</b> Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2021. Disponível em: http://repositorio.ipen.br/handle/123456789/32563.http://repositorio.ipen.br/handle/123456789/32563openAccesscomparative evaluationsgeologyneutron activation analysispotassiumseawaterseaweedssedimentsthoriumuraniumx-ray spectroscopyTexto completo de eventohttps://orcid.org/0000-0002-9351-9201