Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact

The alignment parameter A20 of 73Ta, 74W, and 79Au ions after L3 subshell ionization by electron impact has been determined experimentally and theoretically in the wide energy range (1.02-10.2)EL3, where EL3 is the L3 ionization threshold. The A20 values have been deduced from measurements of the Ll...

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Detalles Bibliográficos
Autores: Barros, Suelen F., Vanin, V.R., Mangiarotti, A., Maidana, N.L., Fernández Varea, José María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/218457
Acceso en línea:https://hdl.handle.net/2445/218457
Access Level:acceso abierto
Palabra clave:Electrons
Energia
Ionització
Electrones
Energy
Ionization
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spelling Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impactBarros, Suelen F.Vanin, V.R.Mangiarotti, A.Maidana, N.L.Fernández Varea, José MaríaElectronsEnergiaIonitzacióElectronesEnergyIonizationThe alignment parameter A20 of 73Ta, 74W, and 79Au ions after L3 subshell ionization by electron impact has been determined experimentally and theoretically in the wide energy range (1.02-10.2)EL3, where EL3 is the L3 ionization threshold. The A20 values have been deduced from measurements of the Ll (L3 → M1), Lα2 (L3 → M4), and Lα1 (L3 → M5) x-ray angular distributions using thin targets. The beam energies have been selected above the threshold energy of each L subshell in order to also investigate the influence of the Coster-Kronig transitions on the anisotropy of x-ray emission. The results provide a clear indication of alignment and agree with calculations carried out within the plane-wave Born approximation up to about 6EL3 , but an unpredicted inversion in the sign of A20 is observed above this energy.American Physical Society2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/218457Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevA.100.062705Physical Review A, 2019, vol. 100, p. 1-14https://doi.org/10.1103/PhysRevA.100.062705(c) American Physical Society, 2019info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2184572026-05-27T06:46:51Z
dc.title.none.fl_str_mv Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
title Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
spellingShingle Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
Barros, Suelen F.
Electrons
Energia
Ionització
Electrones
Energy
Ionization
title_short Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
title_full Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
title_fullStr Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
title_full_unstemmed Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
title_sort Atomic alignment of 73⁢Ta, 74⁢W, and 79⁢Au after 3 subshell ionization by 10–100-keV electron impact
dc.creator.none.fl_str_mv Barros, Suelen F.
Vanin, V.R.
Mangiarotti, A.
Maidana, N.L.
Fernández Varea, José María
author Barros, Suelen F.
author_facet Barros, Suelen F.
Vanin, V.R.
Mangiarotti, A.
Maidana, N.L.
Fernández Varea, José María
author_role author
author2 Vanin, V.R.
Mangiarotti, A.
Maidana, N.L.
Fernández Varea, José María
author2_role author
author
author
author
dc.subject.none.fl_str_mv Electrons
Energia
Ionització
Electrones
Energy
Ionization
topic Electrons
Energia
Ionització
Electrones
Energy
Ionization
description The alignment parameter A20 of 73Ta, 74W, and 79Au ions after L3 subshell ionization by electron impact has been determined experimentally and theoretically in the wide energy range (1.02-10.2)EL3, where EL3 is the L3 ionization threshold. The A20 values have been deduced from measurements of the Ll (L3 → M1), Lα2 (L3 → M4), and Lα1 (L3 → M5) x-ray angular distributions using thin targets. The beam energies have been selected above the threshold energy of each L subshell in order to also investigate the influence of the Coster-Kronig transitions on the anisotropy of x-ray emission. The results provide a clear indication of alignment and agree with calculations carried out within the plane-wave Born approximation up to about 6EL3 , but an unpredicted inversion in the sign of A20 is observed above this energy.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/218457
url https://hdl.handle.net/2445/218457
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1103/PhysRevA.100.062705
Physical Review A, 2019, vol. 100, p. 1-14
https://doi.org/10.1103/PhysRevA.100.062705
dc.rights.none.fl_str_mv (c) American Physical Society, 2019
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2019
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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 Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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