Abstract
WE have measured the absorption of light in cæsium vapour, by photographic photometry, from the series limit (λ 3184 A.) to λ 1935 A. The absorption cell was a quartz tube two metres in length. The vapour was superheated to about 270° C. and the vapour pressure was varied from 0.15 mm. to 0.6 mm.
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References
Mohler and Boeckner, Research Paper No. 96, U.S.A. Bureau of Standards.
Little, Phys. Rev., 30, 109; 1927.
Lawrence and Edelfsen, Phys. Rev., 34, 233; 1929.
Cooke, Phys. Rev., 38, 1351; 1931.
This value is based on a cæsium vapour pressure derived from the formula given by Mohler and Boeckner (loc. cit., p. 307)
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BRADDICK, H., DITCHBURN, R. Absorption of Light in Cæsium Vapour. Nature 131, 132–133 (1933). https://doi.org/10.1038/131132c0
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DOI: https://doi.org/10.1038/131132c0
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