Micro-raman spectroscopic characterization of a CR-39 detector

Página do item simplificado
dc.contributor.authorStuani Pereira, Luiz Augusto [UNESP]
dc.contributor.authorTello Sáenz, Carlos Alberto [UNESP]
dc.contributor.authorLeopoldo Constantino, Carlos José [UNESP]
dc.contributor.authorCampos Curvo, Eduardo Augusto
dc.contributor.authorCoelho Dias, Airton Natanael [UNESP]
dc.contributor.authorSoares, Cleber José
dc.contributor.authorGuedesd, Sandro
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Mato Grosso
dc.contributor.institutionUniversität Mainz
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:28:48Z
dc.date.available2014-05-27T11:28:48Z
dc.date.issued2013-04-01
dc.description.abstractCharacterization by micro-Raman spectroscopy of polymeric materials used as nuclear track detectors reveals physico-chemical and morphological information on the material's molecular structure. In this work, the nuclear track detector poly(allyl diglycol carbonate), or Columbia Resin 39 (CR-39), was characterized according to the fluence of alpha particles produced by a 226Ra source and chemical etching time. Therefore, damage of the CR-39 chemical structure due to the alpha-particle interaction with the detector was analyzed at the molecular level. It was observed that the ionization and molecular excitation of the CR-39 after the irradiation process entail cleavage of chemical bonds and formation of latent track. In addition, after the chemical etching, there is also loss of polymer structure, leading to the decrease of the group density C-O-C (∼888 cm-1), CH=CH (∼960 cm -1), C-O (∼1110 cm-1), C-O-C (∼1240 cm -1), C-O (∼1290 cm-1), C-O (∼1741 cm -1), -CH2- (∼2910 cm-1), and the main band -CH2- (∼2950 cm-1). The analyses performed after irradiation and chemical etching led to a better understanding of the CR-39 molecular structure and better comprehension of the process of the formation of the track, which is related to chemical etching kinetics. Copyright © 2013 Society for Applied Spectroscopy.en
dc.description.affiliationDepartamento de Física Química e Biologia Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Roberto Simonsen, 305, 119060-900 Presidente Prudente, SP
dc.description.affiliationInstituto de Física Universidade Federal de Mato Grosso, Avenida Fernando Corrêa da Costa, no 2367, 78060-900 Cuiabá, MT
dc.description.affiliationInstitut Fü R Geowissenschaften Universität Mainz, Becher-Weg 21, 55099 Mainz
dc.description.affiliationInstituto de Física Gleb Wataghin Universidade Estadual de Campinas, 13083-970 Campinas, SP
dc.description.affiliationUnespDepartamento de Física Química e Biologia Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Roberto Simonsen, 305, 119060-900 Presidente Prudente, SP
dc.format.extent404-408
dc.identifierhttp://dx.doi.org/10.1366/12-06741
dc.identifier.citationApplied Spectroscopy, v. 67, n. 4, p. 404-408, 2013.
dc.identifier.doi10.1366/12-06741
dc.identifier.issn0003-7028
dc.identifier.issn1943-3530
dc.identifier.lattes5982597921345094
dc.identifier.scopus2-s2.0-84876983003
dc.identifier.urihttp://hdl.handle.net/11449/74993
dc.identifier.wosWOS:000317168100010
dc.language.isoeng
dc.relation.ispartofApplied Spectroscopy
dc.relation.ispartofjcr1.642
dc.relation.ispartofsjr0,489
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAlpha particle
dc.subjectChemical etching
dc.subjectCR-39 detector
dc.subjectMicro-Raman spectroscopy
dc.subjectMolecular structure
dc.subjectAllyl diglycol carbonate
dc.subjectCR-39 detectors
dc.subjectMicro Raman Spectroscopy
dc.subjectMolecular excitations
dc.subjectMorphological information
dc.subjectNuclear track detector
dc.subjectSpectroscopic characterization
dc.subjectAllyl resins
dc.subjectAlpha particles
dc.subjectChemical bonds
dc.subjectDetectors
dc.subjectEtching
dc.subjectIrradiation
dc.subjectRaman spectroscopy
dc.subjectChemical analysis
dc.titleMicro-raman spectroscopic characterization of a CR-39 detectoren
dc.typeArtigo
dcterms.licensehttp://www.ingentaconnect.com/about/terms
unesp.author.lattes5982597921345094[2]
unesp.author.lattes6118325967319836[3]
unesp.author.orcid0000-0002-7753-8584[7]
unesp.author.orcid0000-0002-8830-605X[6]
unesp.author.orcid0000-0002-0369-8999[2]
unesp.author.orcid0000-0002-5921-3161[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

Arquivos

Coleções

Artigos - Física, Química e Biologia - FCT