Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability

Detalhes bibliográficos
Autor(a) principal: Elkamash, Ibrahem
Data de Publicação: 2017
Outros Autores: Haas, Fernando, Kourakis, Ioannis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/184755
Resumo: A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation of electrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. A dispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets is investigated. Three types of waves are shown to exist, representing a modified electron plasma (Langmuir-type) mode, a low-frequency ion acoustic mode, and an ion-beam driven mode, respectively. Stability analysis reveals the occurrence of an imaginary frequency part in three regions. The dependence of the instability growth rate on the ion beam parameters (concentration and speed) has been investigated
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spelling Elkamash, IbrahemHaas, FernandoKourakis, Ioannis2018-11-17T03:12:04Z20171070-664Xhttp://hdl.handle.net/10183/184755001052698A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation of electrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. A dispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets is investigated. Three types of waves are shown to exist, representing a modified electron plasma (Langmuir-type) mode, a low-frequency ion acoustic mode, and an ion-beam driven mode, respectively. Stability analysis reveals the occurrence of an imaginary frequency part in three regions. The dependence of the instability growth rate on the ion beam parameters (concentration and speed) has been investigatedapplication/pdfengPhysics of plasmas. Melville. Vol. 24, no. 9 (Sept. 2017), 092119, 10 p.Plasmas relativisticosOndas eletrostáticas em plasmasPropagação de ondasFeixes de íonsRelações de dispersãoIon-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instabilityEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001052698.pdf.txt001052698.pdf.txtExtracted Texttext/plain38472http://www.lume.ufrgs.br/bitstream/10183/184755/2/001052698.pdf.txtbb03f7696396d8d15427f0a4b11cf9bdMD52ORIGINAL001052698.pdfTexto completo (inglês)application/pdf1044620http://www.lume.ufrgs.br/bitstream/10183/184755/1/001052698.pdfc4e585f0ebf8d8284a384e1e4f293f86MD5110183/1847552023-07-20 03:35:24.477453oai:www.lume.ufrgs.br:10183/184755Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-20T06:35:24Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
title Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
spellingShingle Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
Elkamash, Ibrahem
Plasmas relativisticos
Ondas eletrostáticas em plasmas
Propagação de ondas
Feixes de íons
Relações de dispersão
title_short Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
title_full Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
title_fullStr Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
title_full_unstemmed Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
title_sort Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability
author Elkamash, Ibrahem
author_facet Elkamash, Ibrahem
Haas, Fernando
Kourakis, Ioannis
author_role author
author2 Haas, Fernando
Kourakis, Ioannis
author2_role author
author
dc.contributor.author.fl_str_mv Elkamash, Ibrahem
Haas, Fernando
Kourakis, Ioannis
dc.subject.por.fl_str_mv Plasmas relativisticos
Ondas eletrostáticas em plasmas
Propagação de ondas
Feixes de íons
Relações de dispersão
topic Plasmas relativisticos
Ondas eletrostáticas em plasmas
Propagação de ondas
Feixes de íons
Relações de dispersão
description A relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation of electrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. A dispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets is investigated. Three types of waves are shown to exist, representing a modified electron plasma (Langmuir-type) mode, a low-frequency ion acoustic mode, and an ion-beam driven mode, respectively. Stability analysis reveals the occurrence of an imaginary frequency part in three regions. The dependence of the instability growth rate on the ion beam parameters (concentration and speed) has been investigated
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2018-11-17T03:12:04Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/184755
dc.identifier.issn.pt_BR.fl_str_mv 1070-664X
dc.identifier.nrb.pt_BR.fl_str_mv 001052698
identifier_str_mv 1070-664X
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url http://hdl.handle.net/10183/184755
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physics of plasmas. Melville. Vol. 24, no. 9 (Sept. 2017), 092119, 10 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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