Micro-Raman Spectroscopic Characterization of a CR-39 Detector

dc.creatorPereira, LAS
dc.creatorSaenz, CAT
dc.creatorConstantino, CJL
dc.creatorCurvo, EAC
dc.creatorDias, ANC
dc.creatorSoares, CJ
dc.creatorGuedes, S
dc.date2013
dc.dateAPR
dc.date2014-07-30T14:01:50Z
dc.date2015-11-26T16:24:52Z
dc.date2014-07-30T14:01:50Z
dc.date2015-11-26T16:24:52Z
dc.date.accessioned2018-03-28T23:05:42Z
dc.date.available2018-03-28T23:05:42Z
dc.identifierApplied Spectroscopy. Soc Applied Spectroscopy, v. 67, n. 4, n. 404, n. 408, 2013.
dc.identifier0003-7028
dc.identifierWOS:000317168100010
dc.identifier10.1366/12-06741
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56758
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56758
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1268507
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionCharacterization 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 Ra-226 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 (similar to 888 cm(-1)), CH=CH (similar to 960 cm(-1)), C-O (similar to 1110 cm(-1)), C-O-C (similar to 1240 cm(-1)), C-O (similar to 1290 cm(-1)), C=O (similar to 1741 cm(-1)), -CH2- (similar to 2910 cm(-1)), and the main band -CH2- (similar to 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.
dc.description67
dc.description4
dc.description404
dc.description408
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageen
dc.publisherSoc Applied Spectroscopy
dc.publisherFrederick
dc.publisherEUA
dc.relationApplied Spectroscopy
dc.relationAppl. Spectrosc.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectMicro-Raman spectroscopy
dc.subjectCR-39 detector
dc.subjectMolecular structure
dc.subjectAlpha particle
dc.subjectChemical etching
dc.subjectChemical-modifications
dc.subjectIrradiated Cr-39
dc.subjectHeavy-ions
dc.subjectPolymer
dc.subjectTracks
dc.subjectRegistration
dc.subjectSurface
dc.subjectLr-115
dc.titleMicro-Raman Spectroscopic Characterization of a CR-39 Detector
dc.typeArtículos de revistas


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