Radiological study in caves of Southwest Brazil

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dc.contributor.authorALBERIGUI, S.pt_BR
dc.contributor.authorSILVA, P.S.C.pt_BR
dc.contributor.authorCAMPOS, M.P.pt_BR
dc.contributor.authorDAMATTO, S.R.M.pt_BR
dc.contributor.authorPECEQUILO, B.R.pt_BR
dc.contributor.authorMAZZILLI, B.P.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoSOUTH PACIFIC ENVIRONMENTAL RADIOACTIVITY ASSOCIATION CONFERENCE, 8thpt_BR
dc.date.accessioned2014-11-19T10:32:33Zpt_BR
dc.date.accessioned2014-11-19T14:09:53Zpt_BR
dc.date.accessioned2015-04-01T12:48:27Z
dc.date.available2014-11-19T10:32:33Zpt_BR
dc.date.available2014-11-19T14:09:53Zpt_BR
dc.date.available2015-04-01T12:48:27Z
dc.date.eventoNovember 23-27, 2008pt_BR
dc.description.abstractThe Parque Estadual Turístico do Alto Ribeira (PETAR) is located in the Southwestern part of São Paulo State, in Ribeira Valley. In this region is found the major number of cave occurrence in Brazil and also shelters the most visited caves of the country. Caves, usually located in a karstic zone, are characterized by the presence of carbonaceous rocks frequently fractured and collapsed. Carbonates (dolomites and calcite rocks) usually have low U and Th, however, surrounding rocks can be found containing in structural positions U and Th. Radon generated in these rocks may migrate in the subsoil penetrating this carbonate due to its greater permeability causing high radon concentration. It is known that radon emission depends on conditions of the local micrometerology, geological factors and the concentration of U and Th Decay series. In the sense to understand the radon concentrations in these caves, the objective oh this paper is to determine the 238U, 232Th, 226Ra, 228Ra and 210Po in rock, soil and sediment samples by alpha spectrometry and total alpha and beta measurement. The concentrations of radon and thoron in the air’s cave were determined in air by solid state nuclear track detectors. As a complementary study neutron activation analysis also were performed in soil, rock and sediment samples. Six of the most visited caves, named Santana, Água Suja, Morro Preto, Couto, Alambari and Laje Branca were studied. High radon concentrations were found in Santana Cave, the same with higher concentrations of U and Th.
dc.event.siglaSPERA 08pt_BR
dc.format.extent55pt_BR
dc.identifier.citationALBERIGUI, S.; SILVA, P.S.C.; CAMPOS, M.P.; DAMATTO, S.R.M.; PECEQUILO, B.R.; FAVARO, D.I.T.; MAZZILLI, B.P. Radiological study in caves of Southwest Brazil. In: SOUTH PACIFIC ENVIRONMENTAL RADIOACTIVITY ASSOCIATION CONFERENCE, 8th, November 23-27, 2008, Christchurch, New Zealand. <b>Abstract...</b> p. 55. Disponível em: http://repositorio.ipen.br/handle/123456789/19158.
dc.identifier.orcidhttps://orcid.org/0000-0001-7174-9703
dc.identifier.orcidhttps://orcid.org/0000-0001-5641-1165
dc.identifier.orcidhttps://orcid.org/0000-0002-9351-9201
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/19158pt_BR
dc.local.eventoChristchurch, New Zealandpt_BR
dc.rightsopenAccesspt_BR
dc.subjectbrazilpt_BR
dc.subjectcavespt_BR
dc.subjectradonpt_BR
dc.subjecturanium 238pt_BR
dc.subjectthorium 232pt_BR
dc.subjectradium 226pt_BR
dc.subjectradium 228pt_BR
dc.subjectlead 210pt_BR
dc.subjectalpha spectroscopypt_BR
dc.subjectdielectric track detectorspt_BR
dc.titleRadiological study in caves of Southwest Brazilpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorBARBARA PACI MAZZILLI
ipen.autorBRIGITTE ROXANA SOREANU PECEQUILO
ipen.autorSANDRA REGINA DAMATTO
ipen.autorMARCOS DE PARAHYBA CAMPOS
ipen.autorPAULO SERGIO CARDOSO DA SILVA
ipen.autorSIMONE ALBERIGI
ipen.codigoautor45
ipen.codigoautor151
ipen.codigoautor537
ipen.codigoautor1721
ipen.codigoautor2777
ipen.codigoautor3312
ipen.contributor.ipenauthorBARBARA PACI MAZZILLI
ipen.contributor.ipenauthorBRIGITTE ROXANA SOREANU PECEQUILO
ipen.contributor.ipenauthorSANDRA REGINA DAMATTO
ipen.contributor.ipenauthorMARCOS DE PARAHYBA CAMPOS
ipen.contributor.ipenauthorPAULO SERGIO CARDOSO DA SILVA
ipen.contributor.ipenauthorSIMONE ALBERIGI
ipen.date.recebimento09-03pt_BR
ipen.event.datapadronizada2008pt_BR
ipen.identifier.ipendoc13520pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
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sigepi.autor.atividadeALBERIGUI, S.:3312:330:Spt_BR
sigepi.autor.atividadeSILVA, P.S.C.:2777:330:Npt_BR
sigepi.autor.atividadeCAMPOS, M.P.:1721:-1:Npt_BR
sigepi.autor.atividadeDAMATTO, S.R.M.:537:330:Npt_BR
sigepi.autor.atividadePECEQUILO, B.R.:151:330:Npt_BR
sigepi.autor.atividadeMAZZILLI, B.P.:45:330:Npt_BR
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