Abstract

The hollow cathode spectrum of cadmium has been observed over the wave-length range from 600A to 6500A. In Cd I the 3D series has been resolved and extended. In Cd II the work of von Salis and Takahashi has been corrected and considerably extended. The 2P and 2F series are very perturbed by the overlapping 4d95s5p configuration which is nearly complete. No series terms have been found in the 4d95sns series. Cd III is excited very strongly in the discharge and the analysis is now much extended. The odd terms are from 4d95p and they combine with 4d10, 4d95s, 4d96s, 4d95d, and 4d85s2. An ionization potential of 37.6 volts can be calculated from the 4d9ns series.

© 1949 Optical Society of America

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References

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  1. G. von Salis, Ann. d. Physik 76, 145 (1925).
    [Crossref]
  2. Y. Takahashi, Ann. d. Physik 3, 27 (1929).
    [Crossref]
  3. L. Bloch and E. Bloch, Ann. de Physique 5, 325 (1936).
  4. F. Esclangon, J. de phys. et rad. 7, 52 (1926).
    [Crossref]
  5. A. G. Shenstone, Phil. Trans. Roy. Soc. A241, 297 (1948).
    [Crossref]
  6. A. G. Shenstone, Phys. Rev. 57, 894 (1940).
    [Crossref]
  7. R. C. Gibbs and H. E. White, Phys. Rev. 31, 776 (1928); J. C. McLennan, A. B. McLay, and M. F. Crawford, Trans. Roy. Soc. Can. 22, 45 (1928).
    [Crossref]
  8. E. Rasmussen, D. Kgl. Danske Vrdensk. Selskab, Math-Phys. Medd XVIII, 5 (1940).
  9. A. G. Shenstone, Phys. Rev. 36, 669 (1930).
    [Crossref]
  10. A. G. Shenstone, Phys. Rev. 31, 317 (1928).
    [Crossref]

1948 (1)

A. G. Shenstone, Phil. Trans. Roy. Soc. A241, 297 (1948).
[Crossref]

1940 (2)

A. G. Shenstone, Phys. Rev. 57, 894 (1940).
[Crossref]

E. Rasmussen, D. Kgl. Danske Vrdensk. Selskab, Math-Phys. Medd XVIII, 5 (1940).

1936 (1)

L. Bloch and E. Bloch, Ann. de Physique 5, 325 (1936).

1930 (1)

A. G. Shenstone, Phys. Rev. 36, 669 (1930).
[Crossref]

1929 (1)

Y. Takahashi, Ann. d. Physik 3, 27 (1929).
[Crossref]

1928 (2)

A. G. Shenstone, Phys. Rev. 31, 317 (1928).
[Crossref]

R. C. Gibbs and H. E. White, Phys. Rev. 31, 776 (1928); J. C. McLennan, A. B. McLay, and M. F. Crawford, Trans. Roy. Soc. Can. 22, 45 (1928).
[Crossref]

1926 (1)

F. Esclangon, J. de phys. et rad. 7, 52 (1926).
[Crossref]

1925 (1)

G. von Salis, Ann. d. Physik 76, 145 (1925).
[Crossref]

Bloch, E.

L. Bloch and E. Bloch, Ann. de Physique 5, 325 (1936).

Bloch, L.

L. Bloch and E. Bloch, Ann. de Physique 5, 325 (1936).

Esclangon, F.

F. Esclangon, J. de phys. et rad. 7, 52 (1926).
[Crossref]

Gibbs, R. C.

R. C. Gibbs and H. E. White, Phys. Rev. 31, 776 (1928); J. C. McLennan, A. B. McLay, and M. F. Crawford, Trans. Roy. Soc. Can. 22, 45 (1928).
[Crossref]

Rasmussen, E.

E. Rasmussen, D. Kgl. Danske Vrdensk. Selskab, Math-Phys. Medd XVIII, 5 (1940).

Shenstone, A. G.

A. G. Shenstone, Phil. Trans. Roy. Soc. A241, 297 (1948).
[Crossref]

A. G. Shenstone, Phys. Rev. 57, 894 (1940).
[Crossref]

A. G. Shenstone, Phys. Rev. 36, 669 (1930).
[Crossref]

A. G. Shenstone, Phys. Rev. 31, 317 (1928).
[Crossref]

Takahashi, Y.

Y. Takahashi, Ann. d. Physik 3, 27 (1929).
[Crossref]

von Salis, G.

G. von Salis, Ann. d. Physik 76, 145 (1925).
[Crossref]

White, H. E.

R. C. Gibbs and H. E. White, Phys. Rev. 31, 776 (1928); J. C. McLennan, A. B. McLay, and M. F. Crawford, Trans. Roy. Soc. Can. 22, 45 (1928).
[Crossref]

Ann. d. Physik (2)

G. von Salis, Ann. d. Physik 76, 145 (1925).
[Crossref]

Y. Takahashi, Ann. d. Physik 3, 27 (1929).
[Crossref]

Ann. de Physique (1)

L. Bloch and E. Bloch, Ann. de Physique 5, 325 (1936).

D. Kgl. Danske Vrdensk. Selskab, Math-Phys. Medd (1)

E. Rasmussen, D. Kgl. Danske Vrdensk. Selskab, Math-Phys. Medd XVIII, 5 (1940).

J. de phys. et rad. (1)

F. Esclangon, J. de phys. et rad. 7, 52 (1926).
[Crossref]

Phil. Trans. Roy. Soc. (1)

A. G. Shenstone, Phil. Trans. Roy. Soc. A241, 297 (1948).
[Crossref]

Phys. Rev. (4)

A. G. Shenstone, Phys. Rev. 57, 894 (1940).
[Crossref]

R. C. Gibbs and H. E. White, Phys. Rev. 31, 776 (1928); J. C. McLennan, A. B. McLay, and M. F. Crawford, Trans. Roy. Soc. Can. 22, 45 (1928).
[Crossref]

A. G. Shenstone, Phys. Rev. 36, 669 (1930).
[Crossref]

A. G. Shenstone, Phys. Rev. 31, 317 (1928).
[Crossref]

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Figures (3)

Fig. 1
Fig. 1

Perturbed 2P series.

Fig. 2
Fig. 2

Perturbed 2F series.

Fig. 3
Fig. 3

4d85S2 structure in Pd I, Ag II, Cd III (3F3 = 0).

Tables (5)

Tables Icon

Table I 3D terms of cadmium I.

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Table II Terms of cadmium II.

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Table III List of identified lines of cadmium II.

Tables Icon

Table IV Terms of cadmium III.

Tables Icon

Table V List of identified lines of cadmium III.

Equations (1)

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G { Gibbs and White , Phys . Rev . 31 , 776 ( 1928 ) . McLennan , McLay , Crawford , Trans . Roy . Soc . Can . 22 , 45 ( 1928 ) .