Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas

This study has systematically investigated the atomic number (<i>Z</i>) dependence of spectra from gallium-like (Ga-like) ions of heavy elements. We have mainly analyzed the experimental spectra recorded in high-temperature plasmas produced in the Large Helical Device (LHD) for various e...

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Main Authors: Chihiro Suzuki, Fumihiro Koike, Izumi Murakami, Daiji Kato, Naoki Tamura, Tetsutarou Oishi, Nobuyuki Nakamura
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Atoms
Subjects:
Online Access:https://www.mdpi.com/2218-2004/11/2/33
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author Chihiro Suzuki
Fumihiro Koike
Izumi Murakami
Daiji Kato
Naoki Tamura
Tetsutarou Oishi
Nobuyuki Nakamura
author_facet Chihiro Suzuki
Fumihiro Koike
Izumi Murakami
Daiji Kato
Naoki Tamura
Tetsutarou Oishi
Nobuyuki Nakamura
author_sort Chihiro Suzuki
collection DOAJ
description This study has systematically investigated the atomic number (<i>Z</i>) dependence of spectra from gallium-like (Ga-like) ions of heavy elements. We have mainly analyzed the experimental spectra recorded in high-temperature plasmas produced in the Large Helical Device (LHD) for various elements with atomic numbers from 57 onward. The measured wavelengths are compared with theoretical values calculated with a multi-configuration Dirac Fock code. As a result, we have successfully obtained <i>Z</i>-dependent wavelengths of several prominent transitions of Ga-like ions, including a magnetic dipole (M1) transition. Many of them have been experimentally identified for the first time in this study. The present results manifest the significant effects of configuration interaction and spin–orbit interaction for highly charged heavy ions.
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spelling doaj.art-3a6de18bbfd244718afd422e27db97fc2023-11-16T19:04:52ZengMDPI AGAtoms2218-20042023-02-011123310.3390/atoms11020033Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature PlasmasChihiro Suzuki0Fumihiro Koike1Izumi Murakami2Daiji Kato3Naoki Tamura4Tetsutarou Oishi5Nobuyuki Nakamura6National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, JapanFaculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, JapanNational Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, JapanNational Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, JapanNational Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, JapanNational Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, JapanNational Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, JapanThis study has systematically investigated the atomic number (<i>Z</i>) dependence of spectra from gallium-like (Ga-like) ions of heavy elements. We have mainly analyzed the experimental spectra recorded in high-temperature plasmas produced in the Large Helical Device (LHD) for various elements with atomic numbers from 57 onward. The measured wavelengths are compared with theoretical values calculated with a multi-configuration Dirac Fock code. As a result, we have successfully obtained <i>Z</i>-dependent wavelengths of several prominent transitions of Ga-like ions, including a magnetic dipole (M1) transition. Many of them have been experimentally identified for the first time in this study. The present results manifest the significant effects of configuration interaction and spin–orbit interaction for highly charged heavy ions.https://www.mdpi.com/2218-2004/11/2/33Ga-like ionsheavy elementssoft X-ray spectraconfiguration interactionspin–orbit splitting
spellingShingle Chihiro Suzuki
Fumihiro Koike
Izumi Murakami
Daiji Kato
Naoki Tamura
Tetsutarou Oishi
Nobuyuki Nakamura
Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas
Atoms
Ga-like ions
heavy elements
soft X-ray spectra
configuration interaction
spin–orbit splitting
title Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas
title_full Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas
title_fullStr Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas
title_full_unstemmed Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas
title_short Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas
title_sort detailed analysis of spectra from ga like ions of heavy elements observed in high temperature plasmas
topic Ga-like ions
heavy elements
soft X-ray spectra
configuration interaction
spin–orbit splitting
url https://www.mdpi.com/2218-2004/11/2/33
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