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Quenching thermal instability in the body of a thermionic arc cathode

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Resumo:The possibility of quenching the instability causing the appearance of spots on thermionic cathodes of high-pressure arc discharges is demonstrated by means of numerical simulations and experimentally. This possibility stems from the fact that the instability is of a thermal nature and therefore slow. While of significant interest by itself, this possibility may be exploited to prevent in real time the formation of cathode spots in arc devices.
Autores principais:Almeida, P. G. C.
Outros Autores:Benilov, M. S.; Cunha, M. D.; Gomes, J. G. L.
Assunto:Thermionic arc cathode Quenching thermal instability . Faculdade de Ciências Exatas e da Engenharia
Ano:2013
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade da Madeira
Idioma:inglês
Origem:DigitUMa - Repositório da Universidade da Madeira
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author Almeida, P. G. C.
author2 Benilov, M. S.
Cunha, M. D.
Gomes, J. G. L.
author2_role author
author
author
author_facet Almeida, P. G. C.
Almeida, P. G. C.
Benilov, M. S.
Cunha, M. D.
Gomes, J. G. L.
Benilov, M. S.
Cunha, M. D.
Gomes, J. G. L.
author_role author
contributor_name_str_mv DigitUMa
country_str PT
creators_json_str [{\"Person.name\":\"Almeida, P. G. C.\",\"Person.identifier.orcid\":\"0000-0002-8395-2693\"},{\"Person.name\":\"Benilov, M. S.\",\"Person.identifier.orcid\":\"0000-0001-9059-1948\"},{\"Person.name\":\"Cunha, M. D.\",\"Person.identifier.orcid\":\"0000-0002-0397-536X\"},{\"Person.name\":\"Gomes, J. G. L.\",\"Person.identifier.orcid\":\"0000-0001-5476-6253\"}]
datacite.contributors.contributor.contributorName.fl_str_mv DigitUMa
datacite.creators.creator.creatorName.fl_str_mv Almeida, P. G. C.
Benilov, M. S.
Cunha, M. D.
Gomes, J. G. L.
datacite.date.Accepted.fl_str_mv 2013-01-01T00:00:00Z
datacite.date.available.fl_str_mv 2022-09-01T11:17:54Z
datacite.date.embargoed.fl_str_mv 2022-09-01T11:17:54Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
datacite.titles.title.fl_str_mv Quenching thermal instability in the body of a thermionic arc cathode
dc.contributor.none.fl_str_mv DigitUMa
dc.creator.none.fl_str_mv Almeida, P. G. C.
Benilov, M. S.
Cunha, M. D.
Gomes, J. G. L.
dc.date.Accepted.fl_str_mv 2013-01-01T00:00:00Z
dc.date.available.fl_str_mv 2022-09-01T11:17:54Z
dc.date.embargoed.fl_str_mv 2022-09-01T11:17:54Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://hdl.handle.net/10400.13/4545
dc.language.none.fl_str_mv eng
dc.publisher.none.fl_str_mv IOP Publishing
dc.rights.cclincense.fl_str_mv http://creativecommons.org/licenses/by/4.0/
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.subject.none.fl_str_mv Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
dc.title.fl_str_mv Quenching thermal instability in the body of a thermionic arc cathode
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
description The possibility of quenching the instability causing the appearance of spots on thermionic cathodes of high-pressure arc discharges is demonstrated by means of numerical simulations and experimentally. This possibility stems from the fact that the instability is of a thermal nature and therefore slow. While of significant interest by itself, this possibility may be exploited to prevent in real time the formation of cathode spots in arc devices.
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eu_rights_str_mv openAccess
format article
fulltext.url.fl_str_mv https://digituma.uma.pt/bitstreams/18a88efe-7471-4f5c-bada-ac81d0f81303/download
funding.funder.alternateName_str_mv FCT
FCT
funding.funder.identifier_str_mv http://doi.org/10.13039/501100001871
http://doi.org/10.13039/501100001871
funding.funder.name_str_mv Fundação para a Ciência e a Tecnologia
Fundação para a Ciência e a Tecnologia
funding.identifier_str_mv PTDC/FIS-PLA/2708/2012
PEst-OE/MAT/UI0219/2011
funding.name_str_mv 3599-PPCDT
6817 - DCRRNI ID
funding_str_mv PTDC/FIS-PLA/2708/2012
info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-PLA%2F2708%2F2012/PT
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info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FMAT%2FUI0219%2F2011/PT
id digituma_5e7cecf5d56e82a86ccfddfa8aeb8bed
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institution Universidade da Madeira
instname_str Universidade da Madeira
language eng
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network_name_str DigitUMa - Repositório da Universidade da Madeira
oai_identifier_str oai:digituma.uma.pt:10400.13/4545
organization_str_mv urn:organizationAcronym:digituma
person_str_mv Almeida, P. G. C.
Almeida, P. G. C.
https://www.ciencia-id.pt/D61F-B90C-70B2
D61F-B90C-70B2
http://orcid.org/0000-0002-8395-2693
0000-0002-8395-2693
Benilov, M. S.
Benilov, M. S.
https://www.ciencia-id.pt/0F14-A79A-97C1
0F14-A79A-97C1
http://orcid.org/0000-0001-9059-1948
0000-0001-9059-1948
Cunha, M. D.
Cunha, M. D.
http://orcid.org/0000-0002-0397-536X
0000-0002-0397-536X
Gomes, J. G. L.
Gomes, J. G. L.
http://orcid.org/0000-0001-5476-6253
0000-0001-5476-6253
publishDate 2013
publisher.none.fl_str_mv IOP Publishing
reponame_str DigitUMa - Repositório da Universidade da Madeira
repository_id_str urn:repositoryAcronym:digituma
service_str_mv urn:repositoryAcronym:digituma
spelling engIOP Publishingpt_PTThe possibility of quenching the instability causing the appearance of spots on thermionic cathodes of high-pressure arc discharges is demonstrated by means of numerical simulations and experimentally. This possibility stems from the fact that the instability is of a thermal nature and therefore slow. While of significant interest by itself, this possibility may be exploited to prevent in real time the formation of cathode spots in arc devices.application/pdfpt_PTQuenching thermal instability in the body of a thermionic arc cathodePersonalAlmeida, P. G. C.DSpacehttp://dspace.org/items/c7346266-fe94-40ae-aa95-b576b0e1f3a6DSpacehttp://dspace.org/items/c7346266-fe94-40ae-aa95-b576b0e1f3a6AlmeidaPedro G CCiência IDhttps://www.ciencia-id.ptD61F-B90C-70B2ORCIDhttp://orcid.org0000-0002-8395-2693Scopus Author IDhttps://www.scopus.com8157100900PersonalBenilov, M. S.DSpacehttp://dspace.org/items/5ccf95a3-53d5-446c-857c-55d64b887175DSpacehttp://dspace.org/items/5ccf95a3-53d5-446c-857c-55d64b887175BenilovMikhailCiência IDhttps://www.ciencia-id.pt0F14-A79A-97C1ORCIDhttp://orcid.org0000-0001-9059-1948Researcher IDhttps://www.researcherid.comK-4443-2015Scopus Author IDhttps://www.scopus.com7005138676PersonalCunha, M. D.DSpacehttp://dspace.org/items/8509472b-5d78-47db-bfa0-51625a4e9218DSpacehttp://dspace.org/items/8509472b-5d78-47db-bfa0-51625a4e9218CunhaMárioORCIDhttp://orcid.org0000-0002-0397-536XScopus Author IDhttps://www.scopus.com7102711276PersonalGomes, J. G. L.DSpacehttp://dspace.org/items/a974872c-78f0-416b-9f68-7db75af63eafDSpacehttp://dspace.org/items/a974872c-78f0-416b-9f68-7db75af63eafLira GomesJosé GabrielORCIDhttp://orcid.org0000-0001-5476-6253Scopus Author IDhttps://www.scopus.com55601235300HostingInstitutionOrganizationalDigitUMae-mailmailto:digituma@uma.ptdigituma@uma.ptDOIIsPartOf10.1088/0963-0252/22/1/0120022022-09-01T11:17:54Z20132013-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.13/4545http://purl.org/coar/access_right/c_abf2open accessThermionic arc cathodeQuenching thermal instability.Faculdade de Ciências Exatas e da Engenharia709273 bytesFundação para a Ciência e a TecnologiaModelling, understanding, and controlling self-organization phenomena in plasma-electrode interaction in gas discharges: from first principles to applicationsinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-PLA%2F2708%2F2012/PTPTDC/FIS-PLA/2708/20123599-PPCDTCrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaStrategic Project - UI 219 - 2011-2012info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FMAT%2FUI0219%2F2011/PTPEst-OE/MAT/UI0219/20116817 - DCRRNI IDCrossref Funder IDhttp://doi.org/10.13039/501100001871literaturehttp://purl.org/coar/resource_type/c_6501journal article2013http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://digituma.uma.pt/bitstreams/18a88efe-7471-4f5c-bada-ac81d0f81303/downloadPlasma Sources Science and Technology221012002
spellingShingle Quenching thermal instability in the body of a thermionic arc cathode
Quenching thermal instability in the body of a thermionic arc cathode
Almeida, P. G. C.
Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
Almeida, P. G. C.
Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
status NEW
subject.fl_str_mv Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
title Quenching thermal instability in the body of a thermionic arc cathode
title_full Quenching thermal instability in the body of a thermionic arc cathode
title_fullStr Quenching thermal instability in the body of a thermionic arc cathode
Quenching thermal instability in the body of a thermionic arc cathode
title_full_unstemmed Quenching thermal instability in the body of a thermionic arc cathode
Quenching thermal instability in the body of a thermionic arc cathode
title_short Quenching thermal instability in the body of a thermionic arc cathode
title_sort Quenching thermal instability in the body of a thermionic arc cathode
topic Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
topic_facet Thermionic arc cathode
Quenching thermal instability
.
Faculdade de Ciências Exatas e da Engenharia
url http://hdl.handle.net/10400.13/4545
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