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Modelling current transfer to cathodes in metal halide plasmas

2005Journal article Open access
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dc.contributor.authorBenilov, M. S.
dc.contributor.authorCunha, M D
dc.contributor.authorNaidis, G. V.
dc.date.accessioned2022-11-21T12:16:16Z
dc.date.available2022-11-21T12:16:16Z
dc.date.issued2005
dc.description.abstractThis work is concerned with investigation of the main features of current transfer to cathodes under conditions characteristic of metal halide (MH) lamps. It is found that the presence of MHs in the gas phase results in a small decrease of the cathode surface temperature and of the near-cathode voltage drop in the diffuse mode of current transfer; the range of stability of the diffuse mode expands. Effects caused by a variation of the work function of the cathode surface owing to formation of a monolayer of alkali metal atoms on the surface are studied for particular cases where the monolayer is composed of sodium or caesium. It is found that the formation of the sodium monolayer affects the diffuse mode of current transfer only moderately and in the same direction that the presence of metal atoms in the gas phase affects it. Formation of the caesium monolayer produces a dramatic effect: the cathode surface temperature decreases very strongly, the diffuse-mode current–voltage characteristic becomes N–S-shaped.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBenilov, M. S., Cunha, M. D., & Naidis, G. V. (2005). Modelling current transfer to cathodes in metal halide plasmas. Journal of Physics D: Applied Physics, 38(17), 3155-3162.pt_PT
dc.identifier.doi10.1088/0022-3727/38/17/S16pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4793
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIOP Publishingpt_PT
dc.relationModes of current transfer to cathodes of high-pressure arc discharges and their stability
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectCurrent transfer to cathodespt_PT
dc.subjectMetal halide plasmaspt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleModelling current transfer to cathodes in metal halide plasmaspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleModes of current transfer to cathodes of high-pressure arc discharges and their stability
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FFIS%2F60526%2F2004/PT
oaire.citation.endPage3162pt_PT
oaire.citation.issue17pt_PT
oaire.citation.startPage3155pt_PT
oaire.citation.titleJournal of Physics D: Applied Physicspt_PT
oaire.citation.volume38pt_PT
oaire.fundingStreamPOCI
person.familyNameBenilov
person.familyNameCunha
person.familyNameNaidis
person.givenNameMikhail
person.givenNameMário
person.givenNameGeorge
person.identifier.ciencia-id0F14-A79A-97C1
person.identifier.orcid0000-0001-9059-1948
person.identifier.orcid0000-0002-0397-536X
person.identifier.orcid0000-0003-2184-802X
person.identifier.ridK-4443-2015
person.identifier.scopus-author-id7005138676
person.identifier.scopus-author-id7102711276
person.identifier.scopus-author-id6701765912
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5ccf95a3-53d5-446c-857c-55d64b887175
relation.isAuthorOfPublication8509472b-5d78-47db-bfa0-51625a4e9218
relation.isAuthorOfPublication8605b032-ade3-4d43-b569-9b74b1c532ab
relation.isAuthorOfPublication.latestForDiscovery5ccf95a3-53d5-446c-857c-55d64b887175
relation.isProjectOfPublication644330bd-ba62-4b15-a65a-d8b85244e455
relation.isProjectOfPublication.latestForDiscovery644330bd-ba62-4b15-a65a-d8b85244e455

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