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The intensity of X-ray spectrum lines of heavy elements

Published online by Cambridge University Press:  24 October 2008

H. S. W. Massey  and
E. H. S. Burhop
H. S. W. Massey
Affiliation:
Trinity College
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Extract

The intensities of X-ray spectral lines resulting from transitions between the K, L and M shells have been calculated using screened relativistic wave functions. The relativistic modifications are shown to decrease the Lβ3β4 doublet ratio but do not alter the Kα1α2 and Kβ1β3 ratios, in agreement with experiment. The calculated intensities of the forbidden lines arising from quadrupole transitions are in good agreement with experiment. Lines due to transitions arising from the magnetic dipole moment of the electron are found to be very weak, but the LI → K transition might just be observable for heavy elements.

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Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 32 , Issue 3 , October 1936 , pp. 461 - 470
Copyright
Copyright © Cambridge Philosophical Society 1936

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References

† Proc. Roy. Soc. A, 152 (1935), 625.Google Scholar

† Rubinowicz, , Zeits. f. Physik, 53 (1929), 267.CrossRefGoogle Scholar

‡ Darwin, , Proc. Roy. Soc. A, 118 (1928), 654.CrossRefGoogle Scholar

† Phys. Rev. 36 (1930), 57.Google Scholar The rules are used merely to give the effective nuclear charges.

‡ In all cases the formulae give the probability of transition to an individual level of the subgroup.

† Vide Compton, and Allison, , X-rays in theory and experiment (Macmillan, 1935), p. 638.Google Scholar

‡ Phys. Rev. 44 (1933), 146.Google Scholar

§ Ibid. 43 (1933), 1036.

∥ Vide Compton, and Allison, , X-rays in theory and experiment, p. 650.Google Scholar

† Phys. Rev. 26 (1925), 714.Google Scholar

‡ Ibid. 36 (1931), 1273.

§ Vide Compton, and Allison, , X-rays in theory and experiment, p. 645.Google Scholar

∥ ibid. p. 632.

ibid. p. 651.

†† ibid. p. 645.