Abstract

Zeeman effect data are given for 152 lines of La I and 506 lines of La II in the wave-length range 2257A to 7484A. Spectrograms were made at fields of 81,230, 83,370, and 86,570 oersteds using a Bitter electromagnet, and the 24 plates obtained with three diffraction gratings operating simultaneously were measured with an automatic comparator. g values are given for almost all of the classified terms of La I and La II, and the determinations from various lines agree usually to within 0.004 g unit. This makes available an array of unusually precise data for the evaluation of perturbations in typical rich two-electron and three-electron spectra. The g-sum rule of Pauli is verified in a number of cases to within a few tenths of a percent.

© 1945 Optical Society of America

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References

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  1. H. N. Russell and W. F. Meggers, Bur. Stand. J. Research 9, 625 (1932).
    [CrossRef]
  2. S. Rybar, Physik. Zeits. 12, 889 (1911).
  3. W. F. Meggers, Bur. Stand. J. Research 9, 239 (1932).
    [CrossRef]
  4. G. R. Harrison, J. Opt. Soc. Am. 25, 169 (1935); G. R. Harrison and J. P. Molnar, J. Opt. Soc. Am. 30, 343 (1940).
    [CrossRef]
  5. G. R. Harrison and F. Bitter, Phys. Rev. 57, 15 (1940).
    [CrossRef]
  6. G. R. Harrison and J. R. McNally, Phys. Rev. 58, 703 (1940)—Ru. J. P. Molnar and W. J. Hitchcock, J. Opt. Soc. Am. 30, 523 (1940)—Rh I. G. R. Harrison, W. E. Albertson, and N. F. Hosford, J. Opt. Soc. Am. 31, 439 (1941)—Ce II. N. Rosen, G. R. Harrison, and J. R. McNally, Phys. Rev. 60, 722 (1941)—Pr II. W. E. Albertson, G. R. Harrison, and J. R. McNally, Phys. Rev. 61, 167 (1942)—Nd II. J. R. McNally, G. R. Harrison, and H. B. Park, J. Opt. Soc. Am. 32, 334 (1942)—Th II. J. R. McNally and G. R. Harrison, J. Opt. Soc. Am. 35, 584 (1945)—Yt I, Yt II, Yt III.
    [CrossRef]

1940 (2)

G. R. Harrison and F. Bitter, Phys. Rev. 57, 15 (1940).
[CrossRef]

G. R. Harrison and J. R. McNally, Phys. Rev. 58, 703 (1940)—Ru. J. P. Molnar and W. J. Hitchcock, J. Opt. Soc. Am. 30, 523 (1940)—Rh I. G. R. Harrison, W. E. Albertson, and N. F. Hosford, J. Opt. Soc. Am. 31, 439 (1941)—Ce II. N. Rosen, G. R. Harrison, and J. R. McNally, Phys. Rev. 60, 722 (1941)—Pr II. W. E. Albertson, G. R. Harrison, and J. R. McNally, Phys. Rev. 61, 167 (1942)—Nd II. J. R. McNally, G. R. Harrison, and H. B. Park, J. Opt. Soc. Am. 32, 334 (1942)—Th II. J. R. McNally and G. R. Harrison, J. Opt. Soc. Am. 35, 584 (1945)—Yt I, Yt II, Yt III.
[CrossRef]

1935 (1)

1932 (2)

W. F. Meggers, Bur. Stand. J. Research 9, 239 (1932).
[CrossRef]

H. N. Russell and W. F. Meggers, Bur. Stand. J. Research 9, 625 (1932).
[CrossRef]

1911 (1)

S. Rybar, Physik. Zeits. 12, 889 (1911).

Bitter, F.

G. R. Harrison and F. Bitter, Phys. Rev. 57, 15 (1940).
[CrossRef]

Harrison, G. R.

G. R. Harrison and J. R. McNally, Phys. Rev. 58, 703 (1940)—Ru. J. P. Molnar and W. J. Hitchcock, J. Opt. Soc. Am. 30, 523 (1940)—Rh I. G. R. Harrison, W. E. Albertson, and N. F. Hosford, J. Opt. Soc. Am. 31, 439 (1941)—Ce II. N. Rosen, G. R. Harrison, and J. R. McNally, Phys. Rev. 60, 722 (1941)—Pr II. W. E. Albertson, G. R. Harrison, and J. R. McNally, Phys. Rev. 61, 167 (1942)—Nd II. J. R. McNally, G. R. Harrison, and H. B. Park, J. Opt. Soc. Am. 32, 334 (1942)—Th II. J. R. McNally and G. R. Harrison, J. Opt. Soc. Am. 35, 584 (1945)—Yt I, Yt II, Yt III.
[CrossRef]

G. R. Harrison and F. Bitter, Phys. Rev. 57, 15 (1940).
[CrossRef]

G. R. Harrison, J. Opt. Soc. Am. 25, 169 (1935); G. R. Harrison and J. P. Molnar, J. Opt. Soc. Am. 30, 343 (1940).
[CrossRef]

McNally, J. R.

G. R. Harrison and J. R. McNally, Phys. Rev. 58, 703 (1940)—Ru. J. P. Molnar and W. J. Hitchcock, J. Opt. Soc. Am. 30, 523 (1940)—Rh I. G. R. Harrison, W. E. Albertson, and N. F. Hosford, J. Opt. Soc. Am. 31, 439 (1941)—Ce II. N. Rosen, G. R. Harrison, and J. R. McNally, Phys. Rev. 60, 722 (1941)—Pr II. W. E. Albertson, G. R. Harrison, and J. R. McNally, Phys. Rev. 61, 167 (1942)—Nd II. J. R. McNally, G. R. Harrison, and H. B. Park, J. Opt. Soc. Am. 32, 334 (1942)—Th II. J. R. McNally and G. R. Harrison, J. Opt. Soc. Am. 35, 584 (1945)—Yt I, Yt II, Yt III.
[CrossRef]

Meggers, W. F.

H. N. Russell and W. F. Meggers, Bur. Stand. J. Research 9, 625 (1932).
[CrossRef]

W. F. Meggers, Bur. Stand. J. Research 9, 239 (1932).
[CrossRef]

Russell, H. N.

H. N. Russell and W. F. Meggers, Bur. Stand. J. Research 9, 625 (1932).
[CrossRef]

Rybar, S.

S. Rybar, Physik. Zeits. 12, 889 (1911).

Bur. Stand. J. Research (2)

W. F. Meggers, Bur. Stand. J. Research 9, 239 (1932).
[CrossRef]

H. N. Russell and W. F. Meggers, Bur. Stand. J. Research 9, 625 (1932).
[CrossRef]

J. Opt. Soc. Am. (1)

Phys. Rev. (2)

G. R. Harrison and F. Bitter, Phys. Rev. 57, 15 (1940).
[CrossRef]

G. R. Harrison and J. R. McNally, Phys. Rev. 58, 703 (1940)—Ru. J. P. Molnar and W. J. Hitchcock, J. Opt. Soc. Am. 30, 523 (1940)—Rh I. G. R. Harrison, W. E. Albertson, and N. F. Hosford, J. Opt. Soc. Am. 31, 439 (1941)—Ce II. N. Rosen, G. R. Harrison, and J. R. McNally, Phys. Rev. 60, 722 (1941)—Pr II. W. E. Albertson, G. R. Harrison, and J. R. McNally, Phys. Rev. 61, 167 (1942)—Nd II. J. R. McNally, G. R. Harrison, and H. B. Park, J. Opt. Soc. Am. 32, 334 (1942)—Th II. J. R. McNally and G. R. Harrison, J. Opt. Soc. Am. 35, 584 (1945)—Yt I, Yt II, Yt III.
[CrossRef]

Physik. Zeits. (1)

S. Rybar, Physik. Zeits. 12, 889 (1911).

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Tables (6)

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Table I Analyzed Zeeman patterns of La I.

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Table II g values of terms in La I.

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Table III Analyzed Zeeman patterns of La II.

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Table IV g values of terms in La II.

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Table V Tests of g-sum rule in La I.

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Table VI Tests of g-sum rule in La II.