Abstract
AN examination of the hyperfine structure of the arc lines of iridium 3800.10, 3513.67 and 2924.81 A. radiated from a modified form of hollow cathode reveals that the three lines having a common lower level in the ground term 5d86s 4F4½1 are identical in structure. The hyperfine components are therefore ascribed to a spin splitting of the ground term with the upper levels unsplit. 3513.67 A. (5d86s 4F4½—5d86p 4Go4½) exhibits the following structure:
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References
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Venkatesachar and Sibaiya, Proc. Ind. Acad. Sci., 1, 13; 1934.
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VENKATESACHAR, B., SIBAIYA, L. Iridium Isotopes and their Nuclear Spin. Nature 136, 437 (1935). https://doi.org/10.1038/136437b0
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DOI: https://doi.org/10.1038/136437b0
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