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′=25149.3K ωe′=108.532 K ωexe′=-0.4417K ωe′=155.715K ωexe″=-0.3353 K ωeye″=-0.0003226 K. 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.

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  1. Charles, Hunt, Pish, and Timma, J. Opt. Soc. Am. 45, 869 (1955).
  2. D. J. Hunt and G. Pish, J. Opt. Soc. Am. 46, 87 (1956).
  3. TID-5221, "Polonium," July, 1956, pp. 30–31.
  4. E. Matuyama, Nature 133, 567 (1934).
  5. C. H. D. Clark and C. W. Scaffe, Trans. Faraday Soc. 33, 1394 (1937).
  6. C. H. D. Clark, Trans. Faraday Soc. 33, 1398 (1937).
  7. E. Olsson, Z. Physik 90, 138 (1934).
  8. S. M. Naudé and A. Christy, Phys. Rev. 37, 490 (1931).
  9. W. Lochte-Holtgreven and G. H. Dieke, Ann. Physik 5) 3, 937 (1929).

Christy, A.

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

Clark, C. H. D.

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

C. H. D. Clark and C. W. Scaffe, Trans. Faraday Soc. 33, 1394 (1937).

Dieke, G. H.

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

Hunt, D. J.

D. J. Hunt and G. Pish, J. Opt. Soc. Am. 46, 87 (1956).

Lochte-Holtgreven, W.

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

Matuyama, E.

E. Matuyama, Nature 133, 567 (1934).

Naudé, S. M.

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

Olsson, E.

E. Olsson, Z. Physik 90, 138 (1934).

Pish, G.

D. J. Hunt and G. Pish, J. Opt. Soc. Am. 46, 87 (1956).

Scaffe, C. W.

C. H. D. Clark and C. W. Scaffe, Trans. Faraday Soc. 33, 1394 (1937).

Other (9)

Charles, Hunt, Pish, and Timma, J. Opt. Soc. Am. 45, 869 (1955).

D. J. Hunt and G. Pish, J. Opt. Soc. Am. 46, 87 (1956).

TID-5221, "Polonium," July, 1956, pp. 30–31.

E. Matuyama, Nature 133, 567 (1934).

C. H. D. Clark and C. W. Scaffe, Trans. Faraday Soc. 33, 1394 (1937).

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

E. Olsson, Z. Physik 90, 138 (1934).

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

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

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