Issue 1, 2024

Hyperfine structure measurements for neutral and singly ionized terbium by Fourier-transform spectroscopy

Abstract

The archival data recorded by the Fourier transform spectrometer at the USA National Solar Observatory (NSO) were used to investigate the hyperfine structure (HFS) for Tb I and Tb II levels. The magnetic dipole HFS constant A values for 45 levels of Tb I ranging from 285.5 to 34 223.95 cm−1 and for seven levels of Tb II below 36 602 cm−1 were determined. To our best knowledge, the HFS constants for 34 out of 45 levels in Tb I and for two out of seven levels in Tb II are reported for the first time. This study extended the total number of experimentally measured magnetic dipole HFS constants A to 415 for Tb I and 92 for Tb II.

Graphical abstract: Hyperfine structure measurements for neutral and singly ionized terbium by Fourier-transform spectroscopy

Article information

Article type
Paper
Submitted
18 maj 2023
Accepted
20 nov 2023
First published
21 nov 2023

J. Anal. At. Spectrom., 2024,39, 169-177

Hyperfine structure measurements for neutral and singly ionized terbium by Fourier-transform spectroscopy

Y. Wang, H. Ma, M. Liu, X. Li, J. Wei and Z. Dai, J. Anal. At. Spectrom., 2024, 39, 169 DOI: 10.1039/D3JA00160A

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