Fundamental parameters related to selenium kα and kβ emission x-ray spectra
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10362/125599 |
Resumo: | UID/FIS/04559/2020 UID/MULTI/04046/2020 No. 17FUN02MetroMMC |
| id |
RCAP_77e73fe8167086d2384007302246614b |
|---|---|
| oai_identifier_str |
oai:run.unl.pt:10362/125599 |
| network_acronym_str |
RCAP |
| network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| repository_id_str |
|
| spelling |
Fundamental parameters related to selenium kα and kβ emission x-ray spectraAtomic fundamental parametersFluorescence yieldsHigh-accuracy spectra simulationSeleniumX-raysAtomic and Molecular Physics, and OpticsNuclear and High Energy PhysicsCondensed Matter PhysicsUID/FIS/04559/2020 UID/MULTI/04046/2020 No. 17FUN02MetroMMCWe present relativistic ab initio calculations of fundamental parameters for atomic selenium, based on the Multiconfiguration Dirac-Fock method. In detail, fluorescence yields and subshell linewidths, both of K shell, as well as Kβ to Kα intensity ratio are provided, showing overall agreement with previous theoretical calculations and experimental values. Relative intensities were evaluated assuming the same ionization cross-section for the K-shell hole states, leading to a statistical distribution of these initial states. A method for estimating theoretical linewidths of X-ray lines, where the lines are composed by a multiplet of fine-structure levels that are spread in energy, is proposed. This method provides results that are closer to Kα1,2 experimental width values than the usual method, although slightly higher discrepancies occur for the Kβ1,3 lines. This indicates some inaccuracies in the calculation of Auger rates that have a higher contribution for partial linewidths of the subshells involved in the Kβ1,3 profile. Apart from this, the calculated value of Kβ to Kα intensity ratio, which is less sensitive to Auger rates issues, is in excellent agreement with recommended values.LIBPhys-UNLDF – Departamento de FísicaRUNGuerra, MauroSampaio, Jorge M.Vília, Gonçalo R.Godinho, César A.Pinheiro, DanielAmaro, PedroMarques, José P.Machado, JorgeIndelicato, PaulParente, FernandoSantos, José Paulo2021-10-04T23:15:47Z2021-032021-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10application/pdfhttp://hdl.handle.net/10362/125599eng2218-2004PURE: 27916113https://doi.org/10.3390/atoms9010008info: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:RCAAP2023-07-10T16:02:58ZPortal AgregadorONG |
| dc.title.none.fl_str_mv |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| title |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| spellingShingle |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra Guerra, Mauro Atomic fundamental parameters Fluorescence yields High-accuracy spectra simulation Selenium X-rays Atomic and Molecular Physics, and Optics Nuclear and High Energy Physics Condensed Matter Physics |
| title_short |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| title_full |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| title_fullStr |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| title_full_unstemmed |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| title_sort |
Fundamental parameters related to selenium kα and kβ emission x-ray spectra |
| author |
Guerra, Mauro |
| author_facet |
Guerra, Mauro Sampaio, Jorge M. Vília, Gonçalo R. Godinho, César A. Pinheiro, Daniel Amaro, Pedro Marques, José P. Machado, Jorge Indelicato, Paul Parente, Fernando Santos, José Paulo |
| author_role |
author |
| author2 |
Sampaio, Jorge M. Vília, Gonçalo R. Godinho, César A. Pinheiro, Daniel Amaro, Pedro Marques, José P. Machado, Jorge Indelicato, Paul Parente, Fernando Santos, José Paulo |
| author2_role |
author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
LIBPhys-UNL DF – Departamento de Física RUN |
| dc.contributor.author.fl_str_mv |
Guerra, Mauro Sampaio, Jorge M. Vília, Gonçalo R. Godinho, César A. Pinheiro, Daniel Amaro, Pedro Marques, José P. Machado, Jorge Indelicato, Paul Parente, Fernando Santos, José Paulo |
| dc.subject.por.fl_str_mv |
Atomic fundamental parameters Fluorescence yields High-accuracy spectra simulation Selenium X-rays Atomic and Molecular Physics, and Optics Nuclear and High Energy Physics Condensed Matter Physics |
| topic |
Atomic fundamental parameters Fluorescence yields High-accuracy spectra simulation Selenium X-rays Atomic and Molecular Physics, and Optics Nuclear and High Energy Physics Condensed Matter Physics |
| description |
UID/FIS/04559/2020 UID/MULTI/04046/2020 No. 17FUN02MetroMMC |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-10-04T23:15:47Z 2021-03 2021-03-01T00:00:00Z |
| 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/10362/125599 |
| url |
http://hdl.handle.net/10362/125599 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
2218-2004 PURE: 27916113 https://doi.org/10.3390/atoms9010008 |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
10 application/pdf |
| dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
| instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
| instacron_str |
RCAAP |
| institution |
RCAAP |
| reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1777303047600340992 |