Experimental measurement of transition probabilities of neutral and singly ionized europium using laser-induced breakdown spectroscopy (LIBS)

IF 1.9 3区物理与天体物理 Q2 OPTICS

Journal of Quantitative Spectroscopy & Radiative Transfer Pub Date : 2025-10-09 DOI:10.1016/j.jqsrt.2025.109692

Supriya Kodangil , Masaomi Tanaka , Daiji Kato , Gediminas Gaigalas , Hajime Tanuma , Nobuyuki Nakamura

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引用次数: 0

Abstract

Lanthanide elements play an important role in several astrophysical phenomena, such as opacities in neutron star mergers. However, their atomic data, particularly transition probabilities, remain incomplete in databases such as the atomic spectral database (ASD) of the National Institute of Standards and Technology (NIST). This lack of data hinders the accurate analysis of radiative transfer in kilonovae. In this study, we report the transition probabilities of Eu I and Eu II measured using laser-induced breakdown spectroscopy (LIBS). By analyzing the emission spectra of europium in the 200–1200 nm wavelength range recorded with the LIBS technique, we determine the transition probabilities for emission lines that are not available in the NIST ASD. We report transition probabilities for 16 Eu I and 44 Eu II lines and compare our results with the available literature data.

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用激光诱导击穿光谱（LIBS）实验测量中性和单电离铕的跃迁概率

镧系元素在一些天体物理现象中起着重要的作用，例如中子星合并中的不透明。然而，它们的原子数据，特别是跃迁概率，在诸如美国国家标准与技术研究所（NIST）的原子光谱数据库（ASD）等数据库中仍然不完整。这种数据的缺乏阻碍了对千新星辐射传输的准确分析。在这项研究中，我们报告了用激光诱导击穿光谱（LIBS）测量Eu I和Eu II的跃迁概率。通过分析LIBS技术记录的200 - 1200nm波长范围内铕的发射光谱，我们确定了NIST ASD中无法获得的发射谱线的跃迁概率。我们报告了16个Eu I和44个Eu II系的转移概率，并将我们的结果与现有文献数据进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.