{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T06:09:32Z","timestamp":1760854172688,"version":"build-2065373602"},"reference-count":45,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,1,22]],"date-time":"2021-01-22T00:00:00Z","timestamp":1611273600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UID\/FIS\/04559\/2020","UID\/MULTI\/04046\/2020","PTDC\/FIS-AQM\/31969\/2017"],"award-info":[{"award-number":["UID\/FIS\/04559\/2020","UID\/MULTI\/04046\/2020","PTDC\/FIS-AQM\/31969\/2017"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100014132","name":"European Metrology Programme for Innovation and Research","doi-asserted-by":"publisher","award":["17FUN02MetroMMC"],"award-info":[{"award-number":["17FUN02MetroMMC"]}],"id":[{"id":"10.13039\/100014132","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Atoms"],"abstract":"<jats:p>We 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 K\u03b2 to K\u03b1 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 K\u03b11,2 experimental width values than the usual method, although slightly higher discrepancies occur for the K\u03b21,3 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 K\u03b21,3 profile. Apart from this, the calculated value of K\u03b2 to K\u03b1 intensity ratio, which is less sensitive to Auger rates issues, is in excellent agreement with recommended values.<\/jats:p>","DOI":"10.3390\/atoms9010008","type":"journal-article","created":{"date-parts":[[2021,1,22]],"date-time":"2021-01-22T11:13:53Z","timestamp":1611314033000},"page":"8","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Fundamental Parameters Related to Selenium K\u03b1 and K\u03b2 Emission X-ray Spectra"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6286-4048","authenticated-orcid":false,"given":"Mauro","family":"Guerra","sequence":"first","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4359-493X","authenticated-orcid":false,"given":"Jorge M.","family":"Sampaio","sequence":"additional","affiliation":[{"name":"LIP\u2014Laboratory of Instrumentation and Particle Physics, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Portugal"}]},{"given":"Gon\u00e7alo R.","family":"V\u00edlia","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3195-0394","authenticated-orcid":false,"given":"C\u00e9sar A.","family":"Godinho","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]},{"given":"Daniel","family":"Pinheiro","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5257-6728","authenticated-orcid":false,"given":"Pedro","family":"Amaro","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3797-3880","authenticated-orcid":false,"given":"Jos\u00e9 P.","family":"Marques","sequence":"additional","affiliation":[{"name":"BioISI\u2014Biosystems &amp; Integrative Sciences Institute, Faculdade de Ci\u00eancias da Universidade de Lisboa, Campo Grande, C8, 1749-016 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0383-4882","authenticated-orcid":false,"given":"Jorge","family":"Machado","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4668-8958","authenticated-orcid":false,"given":"Paul","family":"Indelicato","sequence":"additional","affiliation":[{"name":"Laboratoire Kastler Brossel, Sorbonne Universit\u00e9, CNRS, ENS-PSL Research University, Coll\u00e8ge de France, Case 74, 4, place Jussieu, F-75005 Paris, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4703-0066","authenticated-orcid":false,"given":"Fernando","family":"Parente","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"},{"name":"BioISI\u2014Biosystems &amp; Integrative Sciences Institute, Faculdade de Ci\u00eancias da Universidade de Lisboa, Campo Grande, C8, 1749-016 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5890-0971","authenticated-orcid":false,"given":"Jos\u00e9 Paulo","family":"Santos","sequence":"additional","affiliation":[{"name":"Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"012010","DOI":"10.1088\/1742-6596\/1138\/1\/012010","article-title":"The next generation of laser spectroscopy experiments using light muonic atoms","volume":"1138","author":"Schmidt","year":"2018","journal-title":"J. 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Data Tables"}],"container-title":["Atoms"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2218-2004\/9\/1\/8\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T05:13:59Z","timestamp":1760159639000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2218-2004\/9\/1\/8"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1,22]]},"references-count":45,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2021,3]]}},"alternative-id":["atoms9010008"],"URL":"https:\/\/doi.org\/10.3390\/atoms9010008","relation":{},"ISSN":["2218-2004"],"issn-type":[{"type":"electronic","value":"2218-2004"}],"subject":[],"published":{"date-parts":[[2021,1,22]]}}}