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V.—The Ionisation of Iodine Vapour by Ultra-Violet Light

Published online by Cambridge University Press:  15 September 2014

W. West
Affiliation:
University of Edinburgh
E.B. Ludlam
Affiliation:
University of Edinburgh
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Extract

The ionisation of iodine vapour by light has been sought by several investigators with negative results. Nevertheless, the application of the quantum theory, which has proved so fruitful with respect to the relation between electron impact on gaseous molecules and the emission of light, leads to the expectation that the ionisation of a gas should be affected by light of sufficiently short wave-length. This ionisation was first observed by Lenard, who investigated the effect of light in the extreme ultra-violet on air and other gases.

Type
Proceedings
Copyright
Copyright © Royal Society of Edinburgh 1926

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References

page 34 note * Henry, , Proc. Camb. Phil. Soc., ix, 319 (1898);Google ScholarWhiddington, Proc. Camb. Phil. Soc, xv, 189 (1910).

page 34 note † Lenard, and Ramsauer, , Sitz. d. Heidelberg, Akad. d. Wiss. (1910–11)Google Scholar; Hughes, , Proc. Camb. Phil. Soc., xv, 483 (1910).Google Scholar

page 34 note ‡ Williams, and King, , Phys. Rev., 15, 550 (1920).Google Scholar

page 34 note § Ludlam, and West, , Proc. Roy. Soc. Edin., xliv, 185 (May, 1924).Google Scholar

page 39 note * Phys. Rev., 16, 501 (1920).

page 39 note † Ibid., 15, 321 (1920).

page 40 note * Smyth and Compton, loc. cit.

page 40 note † Franck, and Westphal, ., Verh. d. Deutsch. phys. Ges., 14, 159 (1912).Google Scholar