Hyperfine structure constants of atomic bromine (Br I). (July 2017)

• Record Type: Journal Article
• Authors: Ni, Xue; Deng, Lunhua; Wang, Hailing
• Is Part Of: Journal of quantitative spectroscopy & radiative transfer. Volume 196(2017)
• Page Start: 165
• Page End: 168
• Publication Date: 2017-07
• Subjects: Atomic structure -- Absorption spectroscopy -- Hyperfine structure -- Neutral bromine; Spectrum analysis -- Periodicals; Radiation -- Periodicals; Analyse spectrale -- Périodiques; Rayonnement -- Périodiques; Radiation; Spectrum analysis; Periodicals; 543.0858
• DOI: 10.1016/j.jqsrt.2017.04.013
• Languages: English
• ISSNs: 0022-4073

Abstract

Abstract: The absorption spectrum of the neutral bromine (Br I), lying in the region from 11, 300 cm −1 to 12, 600 cm −1 has been investigated using concentration modulation absorption spectroscopy with a tunable Ti:Sapphire laser. The bromine atoms were excited by discharging the mixture of Helium and bromine vapour in a hollow discharge glass tube. The hyperfine structure spectra of 45 lines were analyzed. Hyperfine structure constants A and B were derived for 20 even and 27 odd levels amongst which constants for 12 even and 21 odd levels were newly reported. Abstract : Highlights: Doppler-limited absorption spectrum of atomic Br was observed around 800 nm. Hyperfine structures of 45 lines were analyzed for Br I. HFS constants A of 33 levels were reported for the first time. HFS constants B were reported for the first time.