Abstract
A BISMUTH are, operating in a hydrogen atmosphere at reduced pressure (10–20 mm.), emits the line λ4722 of bismuth (Bi) with great brilliance. A faint band spectrum was found to occupy the vicinity of this line. However, using a quartz discharge vessel, fed with 0.5 amp., 1200 v.d.c., and the bismuth vapour distilling at 900° C. through a narrow end-on tube, this band spectrum comes out with great intensity, and so we succeeded in photographing the bands at large dispersion.
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References
See esp. W. Weizel, Phys. Zeits., 31, 880; 1930.
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HEIMER, A., HULTHÉN, E. Band Spectrum of Bismuth Hydride. Nature 127, 557 (1931). https://doi.org/10.1038/127557a0
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DOI: https://doi.org/10.1038/127557a0
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