Abstract

Measurement of spectrograms of electrodeless discharges in purified polonium has yielded over 450 red-shaded band heads in Po210 and more than 500 heads in mixtures of Po208–Po209. Approximately 350 of these have been classified in a system concluded to be the principal system of Po–Po with the following constants(Po210–Po210):

Te=25149.3Kωe=108.532Kωexe=-0.4417Kωe=155.715Kωexe=-0.3353Kωeye=-0.0003226K.

Observed and calculated isotope shifts are in close agreement. The dissociation energy of the lower state is calculated to be 1.895 v under the assumption that the dissociation products are normal polonium atoms.

© 1957 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. Charles, Hunt, Pish, and Timma, J. Opt. Soc. Am. 45, 869 (1955).
    [Crossref]
  2. D. J. Hunt and G. Pish, J. Opt. Soc. Am. 46, 87 (1956).
    [Crossref]
  3. , “Polonium,” July, 1956, pp. 30–31.
  4. E. Matuyama, Nature 133, 567 (1934).
    [Crossref]
  5. C. H. D. Clark and C. W. Scaife, Trans. Faraday Soc. 33, 1394 (1937).
    [Crossref]
  6. C. H. D. Clark, Trans. Faraday Soc. 33, 1398 (1937).
    [Crossref]
  7. E. Olsson, Z. Physik 90, 138 (1934).
    [Crossref]
  8. S. M. Naudé and A. Christy, Phys. Rev. 37, 490 (1931).
    [Crossref]
  9. W. Lochte-Holtgreven and G. H. Dieke, Ann. Physik (5) 3, 937 (1929).
    [Crossref]

1956 (1)

1955 (1)

1937 (2)

C. H. D. Clark and C. W. Scaife, Trans. Faraday Soc. 33, 1394 (1937).
[Crossref]

C. H. D. Clark, Trans. Faraday Soc. 33, 1398 (1937).
[Crossref]

1934 (2)

E. Olsson, Z. Physik 90, 138 (1934).
[Crossref]

E. Matuyama, Nature 133, 567 (1934).
[Crossref]

1931 (1)

S. M. Naudé and A. Christy, Phys. Rev. 37, 490 (1931).
[Crossref]

1929 (1)

W. Lochte-Holtgreven and G. H. Dieke, Ann. Physik (5) 3, 937 (1929).
[Crossref]

Charles,

Christy, A.

S. M. Naudé and A. Christy, Phys. Rev. 37, 490 (1931).
[Crossref]

Clark, C. H. D.

C. H. D. Clark and C. W. Scaife, Trans. Faraday Soc. 33, 1394 (1937).
[Crossref]

C. H. D. Clark, Trans. Faraday Soc. 33, 1398 (1937).
[Crossref]

Dieke, G. H.

W. Lochte-Holtgreven and G. H. Dieke, Ann. Physik (5) 3, 937 (1929).
[Crossref]

Hunt,

Hunt, D. J.

Lochte-Holtgreven, W.

W. Lochte-Holtgreven and G. H. Dieke, Ann. Physik (5) 3, 937 (1929).
[Crossref]

Matuyama, E.

E. Matuyama, Nature 133, 567 (1934).
[Crossref]

Naudé, S. M.

S. M. Naudé and A. Christy, Phys. Rev. 37, 490 (1931).
[Crossref]

Olsson, E.

E. Olsson, Z. Physik 90, 138 (1934).
[Crossref]

Pish,

Pish, G.

Scaife, C. W.

C. H. D. Clark and C. W. Scaife, Trans. Faraday Soc. 33, 1394 (1937).
[Crossref]

Timma,

Ann. Physik (5) (1)

W. Lochte-Holtgreven and G. H. Dieke, Ann. Physik (5) 3, 937 (1929).
[Crossref]

J. Opt. Soc. Am. (2)

Nature (1)

E. Matuyama, Nature 133, 567 (1934).
[Crossref]

Phys. Rev. (1)

S. M. Naudé and A. Christy, Phys. Rev. 37, 490 (1931).
[Crossref]

Trans. Faraday Soc. (2)

C. H. D. Clark and C. W. Scaife, Trans. Faraday Soc. 33, 1394 (1937).
[Crossref]

C. H. D. Clark, Trans. Faraday Soc. 33, 1398 (1937).
[Crossref]

Z. Physik (1)

E. Olsson, Z. Physik 90, 138 (1934).
[Crossref]

Other (1)

, “Polonium,” July, 1956, pp. 30–31.

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (2)

Fig. 1
Fig. 1

A portion of the molecular spectra of polonium.

Fig. 2
Fig. 2

Deslandres array of the principal system of Po–Po.

Tables (4)

Tables Icon

Table I Classified bands of Po210–Po210.

Tables Icon

Table II Comparison of calculated and observed energy levels of upper state.

Tables Icon

Table III Comparison of calculated and observed energy levels of lower state.

Tables Icon

Table IV Summary of constants of principal system of polonium.

Equations (8)

Equations on this page are rendered with MathJax. Learn more.

T e = 25149.3 K ω e = 108.532 K ω e x e = - 0.4417 K ω e = 155.715 K ω e x e = - 0.3353 K ω e y e = - 0.0003226 K .
25149.3 + 108.532 ( v + 1 2 ) - 0.4417 ( v + 1 2 ) 2 ,
25149.1 + 108.977 ( v + 1 2 ) - 0.4423 ( v + 1 2 ) 2 .
155.715 ( v + 1 2 ) - 0.3353 ( v + 1 2 ) - 0.0003226 ( v + 1 2 ) 3
156.440 ( v + 1 2 ) - 0.3400 ( v + 1 2 ) - 0.0002949 ( v + 1 2 ) 3
ω e i = ρ ω e , ω e x e i = ρ 2 ω e x e ,
ω e y e i = ρ 3 ω e y e ,
ρ = ( μ μ i ) 1 2 = 1.004796