Model of the boundary layer of a vacuum-arc magnetic filter

Autores
Minotti, Fernando Oscar; Giuliani, Leandro Estanislao; Grondona, Diana Elena; Della Torre, H.; Kelly, Hector Juan
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A model is developed to describe the electrostatic boundary layer in a positively biased magnetic filter in filtered arcs with low collisionality. The set of equations used includes the electron momentum equation, with an anomalous collision term due to micro-instabilities leading to Bohm diffusion, electron mass conservation, and Poisson equation. Analytical solutions are obtained, valid for the regimes of interest, leading to an explicit expression to determine the electron density current to the filter wall as a function of the potential of the filter and the ratio of electron density at the plasma to that at the filter wall. Using a set of planar and cylindrical probes it is verified experimentally that the mentioned ratio of electron densities remains reasonably constant for different magnetic field values and probe bias, which allows to obtain a closed expression for the current. Comparisons are made with the experimentally determined current collected at different sections of a positively biased straight filter.
Fil: Minotti, Fernando Oscar. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Giuliani, Leandro Estanislao. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Grondona, Diana Elena. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Della Torre, H.. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Kelly, Hector Juan. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Materia
vacuum arc
magnetic filter
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/637
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/637
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Model of the boundary layer of a vacuum-arc magnetic filterMinotti, Fernando OscarGiuliani, Leandro EstanislaoGrondona, Diana ElenaDella Torre, H.Kelly, Hector Juanvacuum arcmagnetic filterhttps://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3A model is developed to describe the electrostatic boundary layer in a positively biased magnetic filter in filtered arcs with low collisionality. The set of equations used includes the electron momentum equation, with an anomalous collision term due to micro-instabilities leading to Bohm diffusion, electron mass conservation, and Poisson equation. Analytical solutions are obtained, valid for the regimes of interest, leading to an explicit expression to determine the electron density current to the filter wall as a function of the potential of the filter and the ratio of electron density at the plasma to that at the filter wall. Using a set of planar and cylindrical probes it is verified experimentally that the mentioned ratio of electron densities remains reasonably constant for different magnetic field values and probe bias, which allows to obtain a closed expression for the current. Comparisons are made with the experimentally determined current collected at different sections of a positively biased straight filter.Fil: Minotti, Fernando Oscar. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;Fil: Giuliani, Leandro Estanislao. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;Fil: Grondona, Diana Elena. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;Fil: Della Torre, H.. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;Fil: Kelly, Hector Juan. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;Amer Inst Physics2013-03-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/637Minotti, Fernando Oscar; Giuliani, Leandro Estanislao; Grondona, Diana Elena; Della Torre, H.; Kelly, Hector Juan; Model of the boundary layer of a vacuum-arc magnetic filter; Amer Inst Physics; Journal Of Applied Physics; 113; 11; 3-2013; 303-309;0021-8979enginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.4795604info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:35Zoai:ri.conicet.gov.ar:11336/637instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:40:35.46CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Model of the boundary layer of a vacuum-arc magnetic filter
title Model of the boundary layer of a vacuum-arc magnetic filter
spellingShingle Model of the boundary layer of a vacuum-arc magnetic filter
Minotti, Fernando Oscar
vacuum arc
magnetic filter
title_short Model of the boundary layer of a vacuum-arc magnetic filter
title_full Model of the boundary layer of a vacuum-arc magnetic filter
title_fullStr Model of the boundary layer of a vacuum-arc magnetic filter
title_full_unstemmed Model of the boundary layer of a vacuum-arc magnetic filter
title_sort Model of the boundary layer of a vacuum-arc magnetic filter
dc.creator.none.fl_str_mv Minotti, Fernando Oscar
Giuliani, Leandro Estanislao
Grondona, Diana Elena
Della Torre, H.
Kelly, Hector Juan
author Minotti, Fernando Oscar
author_facet Minotti, Fernando Oscar
Giuliani, Leandro Estanislao
Grondona, Diana Elena
Della Torre, H.
Kelly, Hector Juan
author_role author
author2 Giuliani, Leandro Estanislao
Grondona, Diana Elena
Della Torre, H.
Kelly, Hector Juan
author2_role author
author
author
author
dc.subject.none.fl_str_mv vacuum arc
magnetic filter
topic vacuum arc
magnetic filter
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
dc.description.none.fl_txt_mv A model is developed to describe the electrostatic boundary layer in a positively biased magnetic filter in filtered arcs with low collisionality. The set of equations used includes the electron momentum equation, with an anomalous collision term due to micro-instabilities leading to Bohm diffusion, electron mass conservation, and Poisson equation. Analytical solutions are obtained, valid for the regimes of interest, leading to an explicit expression to determine the electron density current to the filter wall as a function of the potential of the filter and the ratio of electron density at the plasma to that at the filter wall. Using a set of planar and cylindrical probes it is verified experimentally that the mentioned ratio of electron densities remains reasonably constant for different magnetic field values and probe bias, which allows to obtain a closed expression for the current. Comparisons are made with the experimentally determined current collected at different sections of a positively biased straight filter.
Fil: Minotti, Fernando Oscar. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Giuliani, Leandro Estanislao. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Grondona, Diana Elena. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Della Torre, H.. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
Fil: Kelly, Hector Juan. Consejo Nacional de Invest.cientif.y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Fisica del Plasma; Argentina;
description A model is developed to describe the electrostatic boundary layer in a positively biased magnetic filter in filtered arcs with low collisionality. The set of equations used includes the electron momentum equation, with an anomalous collision term due to micro-instabilities leading to Bohm diffusion, electron mass conservation, and Poisson equation. Analytical solutions are obtained, valid for the regimes of interest, leading to an explicit expression to determine the electron density current to the filter wall as a function of the potential of the filter and the ratio of electron density at the plasma to that at the filter wall. Using a set of planar and cylindrical probes it is verified experimentally that the mentioned ratio of electron densities remains reasonably constant for different magnetic field values and probe bias, which allows to obtain a closed expression for the current. Comparisons are made with the experimentally determined current collected at different sections of a positively biased straight filter.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-18
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/637
Minotti, Fernando Oscar; Giuliani, Leandro Estanislao; Grondona, Diana Elena; Della Torre, H.; Kelly, Hector Juan; Model of the boundary layer of a vacuum-arc magnetic filter; Amer Inst Physics; Journal Of Applied Physics; 113; 11; 3-2013; 303-309;
0021-8979
url http://hdl.handle.net/11336/637
identifier_str_mv Minotti, Fernando Oscar; Giuliani, Leandro Estanislao; Grondona, Diana Elena; Della Torre, H.; Kelly, Hector Juan; Model of the boundary layer of a vacuum-arc magnetic filter; Amer Inst Physics; Journal Of Applied Physics; 113; 11; 3-2013; 303-309;
0021-8979
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4795604
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Amer Inst Physics
publisher.none.fl_str_mv Amer Inst Physics
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613284229021696
score 13.070432

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