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The Double Excitation of Helium by Electron Impact

Published online by Cambridge University Press:  24 October 2008

H. S. W. Massey
Affiliation:
Trinity College, Independent Lecturer in Mathematical Physics, Queen's University, Belfast
C. B. O. Mohr
Affiliation:
Exhibition of 1851 Senior Student, Trinity College, Cambridge

Extract

The probability of excitation of helium by electron impact to the more important doubly excited levels is calculated, and comparison made with the experimental results of Priestley and Whiddington who have observed two lines due to double excitation. The calculated relative intensities and angular distributions are found to be in qualitative agreement with experiment, and reasons are given for the lack of quantitative agreement.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1935

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References

See Massey, and Mohr, , Proc. Roy. Soc. A, 140 (1933), 613.CrossRefGoogle Scholar

Bleakney, , Phys. Rev. 36 (1930), 1303.CrossRefGoogle Scholar

§ Tate, and Smith, , Phys. Rev. 46 (1934), 773.CrossRefGoogle Scholar

Priestley, and Whiddington, , Proc. Leeds Phil. Soc. 2 (1934), 491.Google Scholar

Priestley, and Whiddington, , Proc. Roy. Soc. A, 145 (1934), 462.Google Scholar †† Priestley, and Whiddington, , Proc. Leeds Phil. Soc. 3 (1935), 81.Google Scholar ‡‡ Fender, and Vinti, , Phys. Rev. 46 (1934), 77CrossRefGoogle Scholar; Wu, Ta-You, Phys. Rev. 46 (1934), 234Google Scholar; Cady, , Phys. Rev. 46 (1934), 439.CrossRefGoogle Scholar

Vinti, , Phys. Rev. 42 (1932), 632.CrossRefGoogle Scholar

Vinti, , Phys. Rev. 37 (1931), 448.CrossRefGoogle Scholar

Bleakney, , Phys. Rev. 43 (1933), 378.Google Scholar

Hughes, and McMillen, , Phys. Rev. 44 (1933), 20.CrossRefGoogle Scholar

§ Nicoll, and Mohr, , Proc. Roy. Soc. A, 138 (1932), 229Google Scholar; 142 (1933), 320.