Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface

Autores
Iglesias Garcia, Adalberto de Jesus; Bonetto, Fernando Jose; Vidal, Ricardo Alberto; Ferron, Julio; Goldberg, Edith Catalina
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report results of ion neutralization of low-energy positive He ions interacting with a surface of highly oriented pyrolitic graphite as a function of the impinging energy. We found a neutralization probability close to unity for a wide energy range. This behavior is reproduced by our theory only if we take into account the electronic correlation introduced by the He first excited states considered as possible neutralization channels. The finite occupation of these excited states opens the Auger deexcitation process as a source of emitted electrons.
The calculation of this electron emitted spectrum is complex as it requires the knowledge of the energies and occupations of the atomic configurations as a function of the ion trajectory. Our calculation shows the presence of high energetic secondary electrons contributing to the Auger electron emission spectra of this system.
Fil: Iglesias Garcia, Adalberto de Jesus. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina
Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Materia
Ion-Surface Neutralization
Auger Deexcitation
Electron Emission
Atomic Excited Levels
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:11336/6536
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surfaceIglesias Garcia, Adalberto de JesusBonetto, Fernando JoseVidal, Ricardo AlbertoFerron, JulioGoldberg, Edith CatalinaIon-Surface NeutralizationAuger DeexcitationElectron EmissionAtomic Excited Levelshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report results of ion neutralization of low-energy positive He ions interacting with a surface of highly oriented pyrolitic graphite as a function of the impinging energy. We found a neutralization probability close to unity for a wide energy range. This behavior is reproduced by our theory only if we take into account the electronic correlation introduced by the He first excited states considered as possible neutralization channels. The finite occupation of these excited states opens the Auger deexcitation process as a source of emitted electrons.<br />The calculation of this electron emitted spectrum is complex as it requires the knowledge of the energies and occupations of the atomic configurations as a function of the ion trajectory. Our calculation shows the presence of high energetic secondary electrons contributing to the Auger electron emission spectra of this system.Fil: Iglesias Garcia, Adalberto de Jesus. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; ArgentinaFil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaAmerican Physical Society2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6536Iglesias Garcia, Adalberto de Jesus; Bonetto, Fernando Jose; Vidal, Ricardo Alberto; Ferron, Julio; Goldberg, Edith Catalina; Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 4; 4-2014; 42702-427021050-2947enginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/pra/abstract/10.1103/PhysRevA.89.042702info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.89.042702info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:08:19Zoai:ri.conicet.gov.ar:11336/6536instacron: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:34982025-09-10 13:08:20.127CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
title Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
spellingShingle Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
Iglesias Garcia, Adalberto de Jesus
Ion-Surface Neutralization
Auger Deexcitation
Electron Emission
Atomic Excited Levels
title_short Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
title_full Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
title_fullStr Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
title_full_unstemmed Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
title_sort Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface
dc.creator.none.fl_str_mv Iglesias Garcia, Adalberto de Jesus
Bonetto, Fernando Jose
Vidal, Ricardo Alberto
Ferron, Julio
Goldberg, Edith Catalina
author Iglesias Garcia, Adalberto de Jesus
author_facet Iglesias Garcia, Adalberto de Jesus
Bonetto, Fernando Jose
Vidal, Ricardo Alberto
Ferron, Julio
Goldberg, Edith Catalina
author_role author
author2 Bonetto, Fernando Jose
Vidal, Ricardo Alberto
Ferron, Julio
Goldberg, Edith Catalina
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ion-Surface Neutralization
Auger Deexcitation
Electron Emission
Atomic Excited Levels
topic Ion-Surface Neutralization
Auger Deexcitation
Electron Emission
Atomic Excited Levels
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report results of ion neutralization of low-energy positive He ions interacting with a surface of highly oriented pyrolitic graphite as a function of the impinging energy. We found a neutralization probability close to unity for a wide energy range. This behavior is reproduced by our theory only if we take into account the electronic correlation introduced by the He first excited states considered as possible neutralization channels. The finite occupation of these excited states opens the Auger deexcitation process as a source of emitted electrons.<br />The calculation of this electron emitted spectrum is complex as it requires the knowledge of the energies and occupations of the atomic configurations as a function of the ion trajectory. Our calculation shows the presence of high energetic secondary electrons contributing to the Auger electron emission spectra of this system.
Fil: Iglesias Garcia, Adalberto de Jesus. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina
Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
description We report results of ion neutralization of low-energy positive He ions interacting with a surface of highly oriented pyrolitic graphite as a function of the impinging energy. We found a neutralization probability close to unity for a wide energy range. This behavior is reproduced by our theory only if we take into account the electronic correlation introduced by the He first excited states considered as possible neutralization channels. The finite occupation of these excited states opens the Auger deexcitation process as a source of emitted electrons.<br />The calculation of this electron emitted spectrum is complex as it requires the knowledge of the energies and occupations of the atomic configurations as a function of the ion trajectory. Our calculation shows the presence of high energetic secondary electrons contributing to the Auger electron emission spectra of this system.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
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/11336/6536
Iglesias Garcia, Adalberto de Jesus; Bonetto, Fernando Jose; Vidal, Ricardo Alberto; Ferron, Julio; Goldberg, Edith Catalina; Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 4; 4-2014; 42702-42702
1050-2947
url http://hdl.handle.net/11336/6536
identifier_str_mv Iglesias Garcia, Adalberto de Jesus; Bonetto, Fernando Jose; Vidal, Ricardo Alberto; Ferron, Julio; Goldberg, Edith Catalina; Ion neutralization and high-energy electron emission in He+ scattering by a highly oriented pyrolitic graphite surface; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 4; 4-2014; 42702-42702
1050-2947
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/pra/abstract/10.1103/PhysRevA.89.042702
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.89.042702
info:eu-repo/semantics/altIdentifier/doi/
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
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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
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score 12.993085

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