Kebapçı, Taha YusufSert, SamiParlatan, ŞeymaÖztürk, İpek KanatBaşar, GönülBaşar, GünayTamanis, MarisKroger, Sophie2022-08-122022-08-122022Kebapci, T. Y., Sert, S., Parlatan, S., Ozturk, I. K., Basar, G., Basar, G., Tamanis, M., Kroger, S. (2022). Experimental investigation of the hyperfine structure of Tm I with Fourier transform spectroscopy part b: In the NIR wavelength range from 700 nm to 2250 nm. Journal of Quantitative Spectroscopy & Radiative Transfer, 287.0022-4073https://doi.org/10.1016/j.jqsrt.2022.108196https://hdl.handle.net/20.500.12713/3090In this study, we investigated the hyperfine structure of 43 spectral lines of atomic thulium. We analyzed Fourier-transform spectra in the wavelength range from 700 nm to 2250 nm, which corresponds to the wavenumber range from 14300 cm(-1) to 4440 cm(-1), respectively. The excited thulium atoms were generated in a hollow-cathode lamp. As a result of this investigation, the magnetic-dipole hyperfine constant A of 17 fine structure levels have been determined experimentally, 14 of them for the first time. The magnetic-dipole hyperfine constant values of the three remaining levels, reported in the literature, differed significantly from the results of our determination. (C) 2022 Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessHyperfine StructureAtomic ThuliumFourier-Transform SpectroscopyNIRExperimental investigation of the hyperfine structure of Tm I with Fourier transform spectroscopy part b: In the NIR wavelength range from 700 nm to 2250 nmArticle287WOS:000832897200003Q210.1016/j.jqsrt.2022.108196Q2