Angular distribution of characteristic X-rays following electron impact ionization

Detalhes bibliográficos
Autor(a) principal: Pinheiro, Daniel
Data de Publicação: 2023
Outros Autores: Amaro, Pedro, Machado, Jorge, Guerra, Mauro, Santos, José Paulo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/155180
Resumo: Funding Information: This research was funded in part by FCT (Portugal) under research center grant UID/FIS/04559/2020 (LIBPhys). J. M and J.P.S acknowledge the support of EMPIR, Germany , under Contract No. 17FUN02MetroMMC . The EMPIR initiative is co-funded by the European Union’s Horizon 2020 research and innovation programme and the EMPIR participating States. Publisher Copyright: © 2022 The Author(s)
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spelling Angular distribution of characteristic X-rays following electron impact ionizationAngular distributionAtomic dataAtomic processesElectron impact ionizationFundamental parametersSynthetic spectraRadiationFunding Information: This research was funded in part by FCT (Portugal) under research center grant UID/FIS/04559/2020 (LIBPhys). J. M and J.P.S acknowledge the support of EMPIR, Germany , under Contract No. 17FUN02MetroMMC . The EMPIR initiative is co-funded by the European Union’s Horizon 2020 research and innovation programme and the EMPIR participating States. Publisher Copyright: © 2022 The Author(s)In this paper, we present a theoretical study of the X-ray fluorescence emission after vacancy of K-shell due to electron impact ionization. In particular, we focus on the angular distributions of the characteristic Kα emission lines following this process. Rh was chosen for the analysis since it is a common element in X-ray tube anodes. In this analysis we also considered some elements along the period-4, i.e., Ni, Cu and Co as case-studies. In doing so, we studied the magnetic sub-level population of the ionized states, which is directly related to the angular distribution of the emission. A relative low angular distribution for the Kα emission of Rh of 0.5% was observed, which makes the assumption of isotropic emission correct for most studies. Moreover, a comparison with the respective angular emission for adjacent elements in the fourth period of the periodic table shows that this isotropy is attributed to a small total angular momentum of the resulting configurations after ionization, as well as to opposite angular distributions of the various transitions, which average to a maximum of 0.7% angular asymmetry in Ni.DF – Departamento de FísicaLIBPhys-UNLRUNPinheiro, DanielAmaro, PedroMachado, JorgeGuerra, MauroSantos, José Paulo2023-07-12T22:19:36Z2023-022023-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6application/pdfhttp://hdl.handle.net/10362/155180eng0969-806XPURE: 65999383https://doi.org/10.1016/j.radphyschem.2022.110595info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:37:42Zoai:run.unl.pt:10362/155180Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:57.421545Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Angular distribution of characteristic X-rays following electron impact ionization
title Angular distribution of characteristic X-rays following electron impact ionization
spellingShingle Angular distribution of characteristic X-rays following electron impact ionization
Pinheiro, Daniel
Angular distribution
Atomic data
Atomic processes
Electron impact ionization
Fundamental parameters
Synthetic spectra
Radiation
title_short Angular distribution of characteristic X-rays following electron impact ionization
title_full Angular distribution of characteristic X-rays following electron impact ionization
title_fullStr Angular distribution of characteristic X-rays following electron impact ionization
title_full_unstemmed Angular distribution of characteristic X-rays following electron impact ionization
title_sort Angular distribution of characteristic X-rays following electron impact ionization
author Pinheiro, Daniel
author_facet Pinheiro, Daniel
Amaro, Pedro
Machado, Jorge
Guerra, Mauro
Santos, José Paulo
author_role author
author2 Amaro, Pedro
Machado, Jorge
Guerra, Mauro
Santos, José Paulo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv DF – Departamento de Física
LIBPhys-UNL
RUN
dc.contributor.author.fl_str_mv Pinheiro, Daniel
Amaro, Pedro
Machado, Jorge
Guerra, Mauro
Santos, José Paulo
dc.subject.por.fl_str_mv Angular distribution
Atomic data
Atomic processes
Electron impact ionization
Fundamental parameters
Synthetic spectra
Radiation
topic Angular distribution
Atomic data
Atomic processes
Electron impact ionization
Fundamental parameters
Synthetic spectra
Radiation
description Funding Information: This research was funded in part by FCT (Portugal) under research center grant UID/FIS/04559/2020 (LIBPhys). J. M and J.P.S acknowledge the support of EMPIR, Germany , under Contract No. 17FUN02MetroMMC . The EMPIR initiative is co-funded by the European Union’s Horizon 2020 research and innovation programme and the EMPIR participating States. Publisher Copyright: © 2022 The Author(s)
publishDate 2023
dc.date.none.fl_str_mv 2023-07-12T22:19:36Z
2023-02
2023-02-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/155180
url http://hdl.handle.net/10362/155180
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0969-806X
PURE: 65999383
https://doi.org/10.1016/j.radphyschem.2022.110595
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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instacron:RCAAP
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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