Lifetimes, transition probabilities, and level energies in Fe i

Autor:	James W. Brault, W. Whaling, M. E. Wickliffe, T. R. O'Brian, James E. Lawler
Rok vydání:	1991
Předmět:	Physics Astron Absorption spectroscopy Light beam Statistical and Nonlinear Physics Atomic physics Inductively coupled plasma Laser-induced fluorescence Atomic and Molecular Physics and Optics Spectral line Interpolation Magnetic field
Zdroj:	Journal of the Optical Society of America B. 8:1185
ISSN:	1520-8540 0740-3224
DOI:	10.1364/josab.8.001185
Popis:	We use time-resolved laser-induced fluorescence to measure the lifetime of 186 Fe levels with energies between 25 900 and 60 758 cm . Measured emission branching fractions for these levels yield transition probabilities for 1174 transitions in the range 225-2666 nm. We find another 640 Fe transition probabilities by interpolating level populations in the inductively coupled plasma spectral source. We demonstrate the reliability of the interpolation method by comparing our transition probabilities with absorption oscillator strengths measured by the Oxford group [Blackwell et al., Mon. Not. R. Astron. Soc. 201, 595-602 (1982)]. We derive precise Fe level energies to support the automated method that is used to identify transitions in our spectra.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bde8b100c3a017b492523ae28b6497c1 https://doi.org/10.1364/josab.8.001185 Zobrazit plný text záznamu