Abstract
IT is impossible to state accurately the properties of high frequency radiation (wave-length <0·02 Å.U.), for we have no exact knowledge of the variation, with wave-length, of the intensity and distribution of scattered radiation. We have good reason for believing that the intensity of the radiation scattered by an atom is, on an average, proportional to its atomic number, and that the distribution becomes more and more asymmetrical as the frequency increases. I have found that a formula of Dirac's (Roy. Soc. Proc., A, 3, p. 405, 1926) fits some of the results obtained by Mr. H. M. Cave and myself in a series of experiments on the γ-rays of radium better than any other so far put forward. It may be stated that the best way to test this formula will be to examine the distribution of scattered radiation.
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GRAY, J. Properties of High Frequency Radiations. Nature 118, 801–802 (1926). https://doi.org/10.1038/118801b0
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DOI: https://doi.org/10.1038/118801b0
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