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FTIR laboratory measurement of He I spectra in the 6.5-14 mu m spectral range: Transitions involving f, g, h, and i states
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SYSNO ASEP 0542620 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title FTIR laboratory measurement of He I spectra in the 6.5-14 mu m spectral range: Transitions involving f, g, h, and i states Author(s) Civiš, Svatopluk (UFCH-W) RID, ORCID, SAI
Kubelík, Petr (UFCH-W) RID, ORCID
Zanozina, Ekaterina M. (UFCH-W) RID, ORCID
Pastorek, Adam (UFCH-W) ORCID
Chernov, Vladislav E. (UFCH-W)
Ferus, Martin (UFCH-W) ORCID, RID
Chilukoti, Ashok (UFCH-W)
Naskidashvili, A. V. (RU)Article number 107523 Source Title Journal of Quantitative Spectroscopy and Radiative Transfer. - : Elsevier - ISSN 0022-4073
Roč. 262, MAR 2021 (2021)Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords Time-resolved Fourier-transform spectroscopy ; Infrared spectra ; Rydberg levels ; Helium ; Atomic data Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects EF16_019/0000778 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GC20-10591J GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 UT WOS 000642457300004 EID SCOPUS 85099677991 DOI 10.1016/j.jqsrt.2021.107523 Annotation Time-resolved infrared emission spectra of atomic helium have been measured using a high-resolution Fourier transform spectrometer in the spectral range of 70 0-1500 0 cm(-1) with a maximum resolution of 0.01 cm(-1). A total of 74 spectral lines have been observed, of which 47 lines are detected for the first time. Most of the observed transitions are from highly excited levels (n = 8, 7 and 6). The time profiles of the spectral line's emission intensities observed under the current experimental conditions have been plotted, and the decay times have been obtained. The level energy values are extracted from the list of spectral lines, and their consistency is justified by the obtained ionization potential of the He atom and the dipole polarizability of He+. (c) 2021 Published by Elsevier Ltd. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0320003
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