Abstract

The spectrum of Pr<sup>3+</sup> produced by a sliding spark discharge was photographed in the wavelength range of 800 to 3100 Å with a 35-ft Eagle vacuum spectrograph. An analysis of the resulting line list led to the discovery of all the levels of the 4ƒ<sup>2</sup> (except the <sup>1</sup>S<sub>0</sub>), 4ƒ5<i>d</i>, 4ƒ6<i>s</i>, and 4ƒ6<i>p</i> configurations. The interaction parameters for each configuration were derived from a least-squares fit of the energy formulas to the observed levels.

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  1. R. Sarup and M. H. Crozier, J. Chem. Phys. 42, 371 (1965).
  2. J. Sugar, Phys. Rev. Letters 14, 731 (1965).
  3. J. Sugar, J. Opt. Soc. Am. 53, 831 (1963).
  4. B. Edlén, Rept. Progr. Phys. 26, 181 (1963).
  5. K. L. Andrew and K. W. Meissner, J. Opt. Soc. Am. 49, 146 (1959).
  6. J. Sugar, J. Opt. Soc. Am. 55, 33 (1965).
  7. N. Spector, J. Opt. Soc. Am. 54, 1359 (1964).
  8. N. Spector, J. Opt. Soc. Am. 55, 492 (1965).

Andrew, K. L.

K. L. Andrew and K. W. Meissner, J. Opt. Soc. Am. 49, 146 (1959).

Crozier, M. H.

R. Sarup and M. H. Crozier, J. Chem. Phys. 42, 371 (1965).

Edlén, B.

B. Edlén, Rept. Progr. Phys. 26, 181 (1963).

Meissner, K. W.

K. L. Andrew and K. W. Meissner, J. Opt. Soc. Am. 49, 146 (1959).

Sarup, R.

R. Sarup and M. H. Crozier, J. Chem. Phys. 42, 371 (1965).

Spector, N.

N. Spector, J. Opt. Soc. Am. 54, 1359 (1964).

N. Spector, J. Opt. Soc. Am. 55, 492 (1965).

Sugar, J.

J. Sugar, J. Opt. Soc. Am. 55, 33 (1965).

J. Sugar, J. Opt. Soc. Am. 53, 831 (1963).

J. Sugar, Phys. Rev. Letters 14, 731 (1965).

Other

R. Sarup and M. H. Crozier, J. Chem. Phys. 42, 371 (1965).

J. Sugar, Phys. Rev. Letters 14, 731 (1965).

J. Sugar, J. Opt. Soc. Am. 53, 831 (1963).

B. Edlén, Rept. Progr. Phys. 26, 181 (1963).

K. L. Andrew and K. W. Meissner, J. Opt. Soc. Am. 49, 146 (1959).

J. Sugar, J. Opt. Soc. Am. 55, 33 (1965).

N. Spector, J. Opt. Soc. Am. 54, 1359 (1964).

N. Spector, J. Opt. Soc. Am. 55, 492 (1965).

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