Cargando…
Update of Atomic Data for the First Three Spectra of Actinium
The present article describes a complete reanalysis of all published data on observed spectral lines and energy levels of the first three spectra of actinium (Ac I–III). In Ac I, three previously determined energy levels have been rejected, 12 new energy levels have been found; for six previously kn...
Autor principal: | |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10405742/ https://www.ncbi.nlm.nih.gov/pubmed/37551336 http://dx.doi.org/10.3390/atoms10020042 |
_version_ | 1785085601327874048 |
---|---|
author | Kramida, Alexander |
author_facet | Kramida, Alexander |
author_sort | Kramida, Alexander |
collection | PubMed |
description | The present article describes a complete reanalysis of all published data on observed spectral lines and energy levels of the first three spectra of actinium (Ac I–III). In Ac I, three previously determined energy levels have been rejected, 12 new energy levels have been found; for six previously known levels, either the J values or the energies have been revised, and the ionization energy has been redetermined with an improved accuracy. In the line list of Ac I, three previous classifications have been discarded, 16 new ones have been found, and three have been revised. In Ac II, 16 new energy levels have been established, and 36 new identifications have been found for previously observed but unclassified lines. In both Ac I and Ac II, new sets of transition probabilities have been calculated. For all three spectra, complete datasets of critically evaluated energy levels, observed lines, and transition probabilities have been constructed to serve as recommended data on these spectra. |
format | Online Article Text |
id | pubmed-10405742 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
record_format | MEDLINE/PubMed |
spelling | pubmed-104057422023-08-07 Update of Atomic Data for the First Three Spectra of Actinium Kramida, Alexander Atoms Article The present article describes a complete reanalysis of all published data on observed spectral lines and energy levels of the first three spectra of actinium (Ac I–III). In Ac I, three previously determined energy levels have been rejected, 12 new energy levels have been found; for six previously known levels, either the J values or the energies have been revised, and the ionization energy has been redetermined with an improved accuracy. In the line list of Ac I, three previous classifications have been discarded, 16 new ones have been found, and three have been revised. In Ac II, 16 new energy levels have been established, and 36 new identifications have been found for previously observed but unclassified lines. In both Ac I and Ac II, new sets of transition probabilities have been calculated. For all three spectra, complete datasets of critically evaluated energy levels, observed lines, and transition probabilities have been constructed to serve as recommended data on these spectra. 2022-04-22 /pmc/articles/PMC10405742/ /pubmed/37551336 http://dx.doi.org/10.3390/atoms10020042 Text en https://creativecommons.org/licenses/by/4.0/This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kramida, Alexander Update of Atomic Data for the First Three Spectra of Actinium |
title | Update of Atomic Data for the First Three Spectra of Actinium |
title_full | Update of Atomic Data for the First Three Spectra of Actinium |
title_fullStr | Update of Atomic Data for the First Three Spectra of Actinium |
title_full_unstemmed | Update of Atomic Data for the First Three Spectra of Actinium |
title_short | Update of Atomic Data for the First Three Spectra of Actinium |
title_sort | update of atomic data for the first three spectra of actinium |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10405742/ https://www.ncbi.nlm.nih.gov/pubmed/37551336 http://dx.doi.org/10.3390/atoms10020042 |
work_keys_str_mv | AT kramidaalexander updateofatomicdataforthefirstthreespectraofactinium |