Preservation of photographic and cinematographic films by gamma radiation- preliminary analyses

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dc.contributor.authorNAGAI, MARIA L.E.
dc.contributor.authorSANTOS, PAULO S.
dc.contributor.authorOTUBO, LARISSA
dc.contributor.authorOLIVEIRA, MARIA J.A.
dc.contributor.authorVASQUEZ, PABLO A.S.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2018-01-03T17:39:10Z
dc.date.available2018-01-03T17:39:10Z
dc.date.eventoOctober 22-27, 2017pt_BR
dc.description.abstractBrazilian weather conditions affect directly tangible materials causing deterioration notably getting worse by insects and fungi attack. In this sense, gamma radiation provided from the cobalt-60 is an excellent alternative tool to the traditional preservation process mainly because it has biocidal action. Radiation processing using gamma radiation for cultural heritage materials for disinfection has been widely used around the world in the last decades. Many cultural heritage objects especially made on paper and wood were studied in scientific publications aiming mechanical, physical and chemical properties changes. Over the last fifteen years, the Multipurpose Gamma Irradiation Facility of the Nuclear and Energy Research Institute located inside the Sao Paulo University campus has been irradiated many collections of archived materials, books, paintings and furniture. Adequate storage of photographic and cinematographic materials is a challenge for conservators from preservation institutions. Contamination by fungi is one of leading causes of problem in photographic and cinematographic collections. Several Sao Paulo University libraries have been affected by fungi in their photographic and cinematographic collections making it impossible to research on these materials either manipulate them for health and safety reasons. In this work are presented preliminary results of effects of the ionizing radiation in photographic and cinematographic films. Selected film samples made on cellulose acetate were prepared and characterized by FTIR-ATR spectroscopy. Samples were irradiated by gamma rays with absorbed dose between 2 kGy and 50 kGy. Irradiated samples were analyzed by UV-VIS spectroscopy and electron microscopy techniques. Results shown that disinfection by gamma radiation can be achieved safely applying the disinfection dose between 6 kGy to 15 kGy with no significant change or modification of main properties of the constitutive materials.pt_BR
dc.event.siglaINACpt_BR
dc.identifier.citationNAGAI, MARIA L.E.; SANTOS, PAULO S.; OTUBO, LARISSA; OLIVEIRA, MARIA J.A.; VASQUEZ, PABLO A.S. Preservation of photographic and cinematographic films by gamma radiation- preliminary analyses. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. <b>Proceedings...</b> Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28211.
dc.identifier.orcidhttp://orcid.org/0000-0003-4168-1626
dc.identifier.orcidhttps://orcid.org/0000-0002-6078-229X
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28211
dc.localRio de Janeiro, RJpt_BR
dc.local.eventoBelo Horizonte, MGpt_BR
dc.publisherAssociação Brasileira de Energia Nuclearpt_BR
dc.rightsopenAccesspt_BR
dc.subjectabsorbed radiation doses
dc.subjectcobalt 60
dc.subjectfourier transformation
dc.subjectfungi
dc.subjectphotographic films
dc.subjectpreservation
dc.subjectultraviolet spectra
dc.titlePreservation of photographic and cinematographic films by gamma radiation- preliminary analysespt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorPAULO DE SOUZA SANTOS
ipen.autorPABLO ANTONIO VASQUEZ SALVADOR
ipen.autorMARIA JOSE ALVES DE OLIVEIRA
ipen.autorLARISSA OTUBO
ipen.autorMARIA LUIZA EMI NAGAI
ipen.codigoautor4074
ipen.codigoautor3075
ipen.codigoautor3310
ipen.codigoautor9697
ipen.codigoautor14413
ipen.contributor.ipenauthorPAULO DE SOUZA SANTOS
ipen.contributor.ipenauthorPABLO ANTONIO VASQUEZ SALVADOR
ipen.contributor.ipenauthorMARIA JOSE ALVES DE OLIVEIRA
ipen.contributor.ipenauthorLARISSA OTUBO
ipen.contributor.ipenauthorMARIA LUIZA EMI NAGAI
ipen.date.recebimento18-01pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24036pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
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relation.isAuthorOfPublicationd4213c42-72f0-4acc-956e-bdb70003cdee
relation.isAuthorOfPublication77d1e6fd-15e6-4e2e-963c-8577fd6271b7
relation.isAuthorOfPublication.latestForDiscovery77d1e6fd-15e6-4e2e-963c-8577fd6271b7
sigepi.autor.atividadeNAGAI, MARIA L.E.:14413:-1:Spt_BR
sigepi.autor.atividadeSANTOS, PAULO S.:4074:240:Npt_BR
sigepi.autor.atividadeOTUBO, LARISSA:9697:711:Npt_BR
sigepi.autor.atividadeOLIVEIRA, MARIA J.A.:3310:740:Npt_BR
sigepi.autor.atividadeVASQUEZ, PABLO A.S.:3075:240:Npt_BR
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