Published online by Cambridge University Press: 24 October 2008
Many years ago Rutherford remarked that the high energy lines of the radium C β-ray spectrum showed the existence of γ-rays of very high frequency, and later he pointed out that their frequencies must be closely connected with the β-ray energies through the quantum relation. Although the truth of Rutherford's point of view has become more and more obvious, no advance in the detailed knowledge of these lines has been made in the last seven years. This spectrum is very complicated and the lines faint.
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‡ Ellis, and Skinner, , Roy. Soc. Proc., A., vol. 105, p. 60 (1924)CrossRefGoogle Scholar.
* Ellis, and Skinner, , Roy. Soc. Proc., A., vol. 105, p. 60 (1924)CrossRefGoogle Scholar.
† Ibid., p. 165 (1924).
* Bohr, and Coster, , Zeit. f. Physik, vol. 12, p. 350 (1923).CrossRefGoogle Scholar
* Ellis, , Roy. Soc. Proc., A., vol. 101, p. 5 (1922)CrossRefGoogle Scholar.
* Rosseland, (Zeit. f. Physik, vol. 14, p. 173 (1923)CrossRefGoogle Scholar) has pointed out the importance of these results in this connection.