Analysis of the (5d²+5d6s)-5d6p transition arrays of Os VII and Ir VIII, and the 6s ²S-6p ²P transitions of Ir IX

Journal Article · 01 November 1995 · Journal of Research of the National Institute of Standards and Technology

DOI: https://doi.org/10.6028/jres.100.051 · OSTI ID:1628730

van het Hof, G. J. ^[1]; Joshi, Y. N. ^[2]; Wyart, J. F. ^[3]; Sugar, J. ^[4]

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1. St. Francis Xavier Univ., Antigonish, NS (Canada); DOE/OSTI
2. St. Francis Xavier Univ., Antigonish, NS (Canada)
3. Centre National de la Recherche Scientifique (CNRS). Orsay (France). Laboratoire Aime Cotton
4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)

The spectra of osmium and iridium were photographed in the 300 Å to 1600 Å region on a 3 m normal incidence spectrograph using a triggered spark source. The (5d² + 5d6s)–5d6p transition arrays of Os VII and Ir VIII were analyzed. All levels of these three configurations in both spectra have been established. There are 77 lines in Os VII and 71 lines in Ir VIII classified. The parametric least squares fitting calculations are used to interpret both spectra. The 6s ²S_1/2–6p ²P_1/2,3/2 transitions in Ir IX have also been identified.

• Research Organization: National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
• Sponsoring Organization: NATO; Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
• OSTI ID: 1628730
• Journal Information: Journal of Research of the National Institute of Standards and Technology, Journal Name: Journal of Research of the National Institute of Standards and Technology Journal Issue: 6 Vol. 100; ISSN 1044-677X
• Publisher: National Institute of Standards (NIST)Copyright Statement
• Country of Publication: United States
• Language: English