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Luminescence of Solutions of Terbium Salts

Naturevolume 139pages248249 (1937) | Download Citation

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Abstract

VERY dilute aqueous solutions of terbium salts exhibit a bright luminescence when excited by the ultra-violet rays1. The maximal excitation is caused by the absorption of the wave-lengths coinciding with the broad absorption band of terbium, stretching from 290 m far towards the short wave-lengths2. The spectrum of this luminescence consists of 7 bands, each band being nearly 100 A. wide. The wavelengths and frequencies of the middles of the bands are given in the accompanying table.

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References

  1. 1

    Filippow, A., Larionow, J., and Seidel, A., C.R. Acad. Sci. U.S.S.R., (10) 1, 253 (1936).

  2. 2

    Prandtl, W., und Schemer, K., Z. anorg. und allg. Chem., 220, 107 (1934).

  3. 3

    Vleck, J. H. van, ” Theory of Electric and Magnetic Susceptibilities”, p. 246 (Oxford, 1936).

  4. 4

    Ellis, S. B., Phys. Rev., 49, 876 (1936).

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Affiliations

  1. Commission for the Study of the Rare Earths of the Academy of Sciences of the U.S.S.R., Leningrad

    • A. SEIDEL

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https://doi.org/10.1038/139248b0

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