Experimental study of unconfined surface wave discharges at atmospheric pressure by optical emission spectroscopy

dc.creatorRidenti, MA
dc.creatorSouza-Correa, JA
dc.creatorAmorim, J
dc.date2014
dc.date47119
dc.date2014-08-01T18:30:32Z
dc.date2015-11-26T17:54:23Z
dc.date2014-08-01T18:30:32Z
dc.date2015-11-26T17:54:23Z
dc.date.accessioned2018-03-29T00:38:02Z
dc.date.available2018-03-29T00:38:02Z
dc.identifierJournal Of Physics D-applied Physics. Iop Publishing Ltd, v. 47, n. 4, 2014.
dc.identifier0022-3727
dc.identifier1361-6463
dc.identifierWOS:000329624900017
dc.identifier10.1088/0022-3727/47/4/045204
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79970
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79970
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1290782
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionA surface wave discharge (SWD) in argon at atmospheric pressure generated by a surfatron device was studied by optical emission spectroscopy (OES). Two distinct situations were investigated; (i) a discharge plasma in open air and (ii) a discharge plasma totally confined in a quartz tube. The electron density ne, electron temperature T-e and gas temperature T-g were investigated as a function of applied power and gas flow rate. The self-absorbing method was used to estimate the population of the metastable state Ar(1s(5)). These physical quantities were determined through optical measurements along the plasma axis of symmetry. The profile of the electron density presented a maximum value under certain conditions, in contrast with typical electron density profiles of SWDs which are usually monotonically decreasing. A correlation between the electron density and the metastable state Ar(1s(5)) was found in one of these cases, suggesting that stepwise ionization from metastable states and non-local kinetics play an important role on the unexpected increase in ionization degree along the discharge.
dc.description47
dc.description4
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2008/58034-0]
dc.languageen
dc.publisherIop Publishing Ltd
dc.publisherBristol
dc.publisherInglaterra
dc.relationJournal Of Physics D-applied Physics
dc.relationJ. Phys. D-Appl. Phys.
dc.rightsfechado
dc.rightshttp://iopscience.iop.org/page/copyright
dc.sourceWeb of Science
dc.subjectcold plasma
dc.subjectsurface wave discharge
dc.subjectoptical emission spectrometry
dc.subjectatmospheric pressure plasma
dc.subjectmicrowave discharge
dc.subjectSustained Discharge
dc.subjectMicrowave-discharge
dc.subjectSugarcane Bagasse
dc.subjectOzonation Process
dc.subjectMetastable-state
dc.subjectGlow-discharge
dc.subjectPlasma Columns
dc.subjectArgon
dc.subjectGas
dc.subjectTemperature
dc.titleExperimental study of unconfined surface wave discharges at atmospheric pressure by optical emission spectroscopy
dc.typeArtículos de revistas


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