Abstract

The furnace absorption method has been applied to the spectrum of neutral atomic uranium. In the wavelength interval, 355.2 ≥ λ (nm) ≥ 359.4, the absolute oscillator strengths for 57 transitions in neutral uranium have been determined. For the strongest transition at 358.487 74 nm, the result was ƒl: (358.4) = 0.041 ± 0.003. This latter result is in excellent agreement with the absolute oscillator strength derived from three separate lifetime measurements and the calculated branching ratio for the 591.538 74 nm transition.

© 1978 Optical Society of America

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  1. Jean Blaise and L. J. Radziemski, "Energy levels of neutral atomic uranium," J. Opt. Soc. Am. 66, 644–659 (1976).
  2. J. Z. Klose and P. A. Voigt, "Mean lives and gf-values in U I," Phys. Rev. 16, 2032–2036 (1977).
  3. L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).
  4. L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).
  5. P. S. Ramanujam, "Direct measurement of radiative lifetimes of excited states in refractory metal atoms using a sputtering technique," Phys. Rev. Lett. 39, 1192–1194 (1977).
  6. C. H. Corliss, "Line strengths and lifetimes of levels in neutral uranium," J. Res. Natl. Bur. Stand. 80A, 1–7 (1976).
  7. A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U.P., New York, 1961), p. 99.
  8. Hiroaki Tagawa, "Phase relations and thermodynamic properties of the uranium-nitrogen system," J. Nucl. Mat. 51, 78–89 (1974).
  9. R. J. Ackermann and E. G. Rauh, "Measurement of the solubilities and derived thermodynamic properties of tungsten and tantalum in liquid thorium and uranium," High Temp. Sci. 4, 496-505 (1972).
  10. W. M. Olson and R. N. R. Mulford, "The decomposition pressure and melting point of uranium mononitride," J. Phys. Chem. 67, 952–954 (1963).
  11. J. Bugl and A. A. Bauer, "Phase relations in the system uraniumnitrogen," J. Am. Ceram. Soc. 47, 425–429 (1964).
  12. Hiroaki Tagawa, Ref. 8, p. 85.
  13. F. L. Oetting, M. H. Rand, and R. J. Ackermann, The Chemical Thermodynamics of Actinide Elements and Compounds: Part 1, The Actinide Elements (IAEA, Vienna, 1976), p. 78.
  14. D. Stull and H. Prophet, JANAF Thermochemical Tables, Dow Chemical Company, Midland Michigan, 1965.
  15. Hiroaki Tagawa, Ref. 8, p. 84.
  16. G. N. Lewis and M. Randall, Thermodynamics, second ed., revised by K. S. Pitzer and Leo Brewer (McGraw-Hill, New York, 1961), pp. 422–424.
  17. F. L. Oetting, M. H. Rand, and R. J. Ackermann, Ref. 13, pp. 16–19, p. 78.
  18. C. A. Alexander, J. S. Ogden, and W. M. Pardue, "Volatization characteristics of uranium mononitride," J. Nucl. Mat. 31, 13–24 (1969).
  19. C. L. Hoenig, "Phase equilibria, vapor pressure, and kinetic studies in the uranium-nitrogen system," J. Am. Ceram. Soc. 54, 391–398 (1971).
  20. Yasushi Ikeda, Masayoshi Tamaki, and Genichi Matsumoto, "Vaporization of uranium-carbon-nitrogen system," J. Nucl. Mat. 59, 103–111 (1976).
  21. F. L. Oetting, M. H. Rand and R. J. Ackermann, Ref. 13, p. 47.
  22. Hiroaki Tagawa, Ref. 8, p. 87.
  23. R. Engleman and B. A. Palmer (private communication).
  24. D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

1977 (3)

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

P. S. Ramanujam, "Direct measurement of radiative lifetimes of excited states in refractory metal atoms using a sputtering technique," Phys. Rev. Lett. 39, 1192–1194 (1977).

J. Z. Klose and P. A. Voigt, "Mean lives and gf-values in U I," Phys. Rev. 16, 2032–2036 (1977).

1976 (4)

Jean Blaise and L. J. Radziemski, "Energy levels of neutral atomic uranium," J. Opt. Soc. Am. 66, 644–659 (1976).

L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).

C. H. Corliss, "Line strengths and lifetimes of levels in neutral uranium," J. Res. Natl. Bur. Stand. 80A, 1–7 (1976).

Yasushi Ikeda, Masayoshi Tamaki, and Genichi Matsumoto, "Vaporization of uranium-carbon-nitrogen system," J. Nucl. Mat. 59, 103–111 (1976).

1974 (1)

Hiroaki Tagawa, "Phase relations and thermodynamic properties of the uranium-nitrogen system," J. Nucl. Mat. 51, 78–89 (1974).

1972 (1)

R. J. Ackermann and E. G. Rauh, "Measurement of the solubilities and derived thermodynamic properties of tungsten and tantalum in liquid thorium and uranium," High Temp. Sci. 4, 496-505 (1972).

1971 (1)

C. L. Hoenig, "Phase equilibria, vapor pressure, and kinetic studies in the uranium-nitrogen system," J. Am. Ceram. Soc. 54, 391–398 (1971).

1969 (1)

C. A. Alexander, J. S. Ogden, and W. M. Pardue, "Volatization characteristics of uranium mononitride," J. Nucl. Mat. 31, 13–24 (1969).

1964 (1)

J. Bugl and A. A. Bauer, "Phase relations in the system uraniumnitrogen," J. Am. Ceram. Soc. 47, 425–429 (1964).

1963 (1)

W. M. Olson and R. N. R. Mulford, "The decomposition pressure and melting point of uranium mononitride," J. Phys. Chem. 67, 952–954 (1963).

Ackermann, R. J.

R. J. Ackermann and E. G. Rauh, "Measurement of the solubilities and derived thermodynamic properties of tungsten and tantalum in liquid thorium and uranium," High Temp. Sci. 4, 496-505 (1972).

F. L. Oetting, M. H. Rand, and R. J. Ackermann, The Chemical Thermodynamics of Actinide Elements and Compounds: Part 1, The Actinide Elements (IAEA, Vienna, 1976), p. 78.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, Ref. 13, pp. 16–19, p. 78.

F. L. Oetting, M. H. Rand and R. J. Ackermann, Ref. 13, p. 47.

Alexander, C. A.

C. A. Alexander, J. S. Ogden, and W. M. Pardue, "Volatization characteristics of uranium mononitride," J. Nucl. Mat. 31, 13–24 (1969).

Bauer, A. A.

J. Bugl and A. A. Bauer, "Phase relations in the system uraniumnitrogen," J. Am. Ceram. Soc. 47, 425–429 (1964).

Blaise, J.

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Blaise, Jean

Bugl, J.

J. Bugl and A. A. Bauer, "Phase relations in the system uraniumnitrogen," J. Am. Ceram. Soc. 47, 425–429 (1964).

Carlson, L. R.

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).

Corliss, C. H.

C. H. Corliss, "Line strengths and lifetimes of levels in neutral uranium," J. Res. Natl. Bur. Stand. 80A, 1–7 (1976).

Cowan, R. D.

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Engleman, R.

R. Engleman and B. A. Palmer (private communication).

Gvelachvili, G.

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Hoenig, C. L.

C. L. Hoenig, "Phase equilibria, vapor pressure, and kinetic studies in the uranium-nitrogen system," J. Am. Ceram. Soc. 54, 391–398 (1971).

Ikeda, Yasushi

Yasushi Ikeda, Masayoshi Tamaki, and Genichi Matsumoto, "Vaporization of uranium-carbon-nitrogen system," J. Nucl. Mat. 59, 103–111 (1976).

Johnson, S. A.

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).

Klose, J. Z.

J. Z. Klose and P. A. Voigt, "Mean lives and gf-values in U I," Phys. Rev. 16, 2032–2036 (1977).

Lewis, G. N.

G. N. Lewis and M. Randall, Thermodynamics, second ed., revised by K. S. Pitzer and Leo Brewer (McGraw-Hill, New York, 1961), pp. 422–424.

Matsumoto, Genichi

Yasushi Ikeda, Masayoshi Tamaki, and Genichi Matsumoto, "Vaporization of uranium-carbon-nitrogen system," J. Nucl. Mat. 59, 103–111 (1976).

May, C. A.

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).

Mitchell, A. C. G.

A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U.P., New York, 1961), p. 99.

Mulford, R. N. R.

W. M. Olson and R. N. R. Mulford, "The decomposition pressure and melting point of uranium mononitride," J. Phys. Chem. 67, 952–954 (1963).

Oetting, F. L.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, Ref. 13, pp. 16–19, p. 78.

F. L. Oetting, M. H. Rand and R. J. Ackermann, Ref. 13, p. 47.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, The Chemical Thermodynamics of Actinide Elements and Compounds: Part 1, The Actinide Elements (IAEA, Vienna, 1976), p. 78.

Ogden, J. S.

C. A. Alexander, J. S. Ogden, and W. M. Pardue, "Volatization characteristics of uranium mononitride," J. Nucl. Mat. 31, 13–24 (1969).

Olson, W. M.

W. M. Olson and R. N. R. Mulford, "The decomposition pressure and melting point of uranium mononitride," J. Phys. Chem. 67, 952–954 (1963).

Osman, Z. Ben

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Paisner, J. A.

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).

Palmer, B. A.

R. Engleman and B. A. Palmer (private communication).

Pardue, W. M.

C. A. Alexander, J. S. Ogden, and W. M. Pardue, "Volatization characteristics of uranium mononitride," J. Nucl. Mat. 31, 13–24 (1969).

Prophet, H.

D. Stull and H. Prophet, JANAF Thermochemical Tables, Dow Chemical Company, Midland Michigan, 1965.

Radziemski, L. J.

Radziemski, Jr., L. J.

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Ramanujam, P. S.

P. S. Ramanujam, "Direct measurement of radiative lifetimes of excited states in refractory metal atoms using a sputtering technique," Phys. Rev. Lett. 39, 1192–1194 (1977).

Rand, M. H.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, The Chemical Thermodynamics of Actinide Elements and Compounds: Part 1, The Actinide Elements (IAEA, Vienna, 1976), p. 78.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, Ref. 13, pp. 16–19, p. 78.

F. L. Oetting, M. H. Rand and R. J. Ackermann, Ref. 13, p. 47.

Randall, M.

G. N. Lewis and M. Randall, Thermodynamics, second ed., revised by K. S. Pitzer and Leo Brewer (McGraw-Hill, New York, 1961), pp. 422–424.

Rauh, E. G.

R. J. Ackermann and E. G. Rauh, "Measurement of the solubilities and derived thermodynamic properties of tungsten and tantalum in liquid thorium and uranium," High Temp. Sci. 4, 496-505 (1972).

Solarz, R. W.

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

L. R. Carlson J. A. Paisner, E. W. Worden, S. A. Johnson, C. A. May, R. W. Solarz, "Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization," J. Opt. Soc. Am. 66, 846–853 (1976).

Steinhaus, D. W.

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Stull, D.

D. Stull and H. Prophet, JANAF Thermochemical Tables, Dow Chemical Company, Midland Michigan, 1965.

Tagawa, Hiroaki

Hiroaki Tagawa, "Phase relations and thermodynamic properties of the uranium-nitrogen system," J. Nucl. Mat. 51, 78–89 (1974).

Tamaki, Masayoshi

Yasushi Ikeda, Masayoshi Tamaki, and Genichi Matsumoto, "Vaporization of uranium-carbon-nitrogen system," J. Nucl. Mat. 59, 103–111 (1976).

Vergés, J.

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

Voigt, P. A.

J. Z. Klose and P. A. Voigt, "Mean lives and gf-values in U I," Phys. Rev. 16, 2032–2036 (1977).

Worden, E. F.

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

Worden, E. W.

Zemansky, M. W.

A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U.P., New York, 1961), p. 99.

High Temp. Sci. (1)

R. J. Ackermann and E. G. Rauh, "Measurement of the solubilities and derived thermodynamic properties of tungsten and tantalum in liquid thorium and uranium," High Temp. Sci. 4, 496-505 (1972).

J. Am. Ceram. Soc. (2)

C. L. Hoenig, "Phase equilibria, vapor pressure, and kinetic studies in the uranium-nitrogen system," J. Am. Ceram. Soc. 54, 391–398 (1971).

J. Bugl and A. A. Bauer, "Phase relations in the system uraniumnitrogen," J. Am. Ceram. Soc. 47, 425–429 (1964).

J. Nucl. Mat. (3)

Yasushi Ikeda, Masayoshi Tamaki, and Genichi Matsumoto, "Vaporization of uranium-carbon-nitrogen system," J. Nucl. Mat. 59, 103–111 (1976).

Hiroaki Tagawa, "Phase relations and thermodynamic properties of the uranium-nitrogen system," J. Nucl. Mat. 51, 78–89 (1974).

C. A. Alexander, J. S. Ogden, and W. M. Pardue, "Volatization characteristics of uranium mononitride," J. Nucl. Mat. 31, 13–24 (1969).

J. Opt. Soc. Am. (2)

J. Phys. Chem. (1)

W. M. Olson and R. N. R. Mulford, "The decomposition pressure and melting point of uranium mononitride," J. Phys. Chem. 67, 952–954 (1963).

J. Res. Natl. Bur. Stand. (1)

C. H. Corliss, "Line strengths and lifetimes of levels in neutral uranium," J. Res. Natl. Bur. Stand. 80A, 1–7 (1976).

Opt. Commun. (1)

L. R. Carlson, S. A. Johnson, E. F. Worden, C. A. May, R. W. Solarz, and J. A. Paisner, "Determination of absolute atomic transition probabilities using time-resolved optical pumping," Opt. Commun. 21, 116–120 (1977).

Phys. Rev. (1)

J. Z. Klose and P. A. Voigt, "Mean lives and gf-values in U I," Phys. Rev. 16, 2032–2036 (1977).

Phys. Rev. Lett. (1)

P. S. Ramanujam, "Direct measurement of radiative lifetimes of excited states in refractory metal atoms using a sputtering technique," Phys. Rev. Lett. 39, 1192–1194 (1977).

Other (11)

A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U.P., New York, 1961), p. 99.

Hiroaki Tagawa, Ref. 8, p. 85.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, The Chemical Thermodynamics of Actinide Elements and Compounds: Part 1, The Actinide Elements (IAEA, Vienna, 1976), p. 78.

D. Stull and H. Prophet, JANAF Thermochemical Tables, Dow Chemical Company, Midland Michigan, 1965.

Hiroaki Tagawa, Ref. 8, p. 84.

G. N. Lewis and M. Randall, Thermodynamics, second ed., revised by K. S. Pitzer and Leo Brewer (McGraw-Hill, New York, 1961), pp. 422–424.

F. L. Oetting, M. H. Rand, and R. J. Ackermann, Ref. 13, pp. 16–19, p. 78.

F. L. Oetting, M. H. Rand and R. J. Ackermann, Ref. 13, p. 47.

Hiroaki Tagawa, Ref. 8, p. 87.

R. Engleman and B. A. Palmer (private communication).

D. W. Steinhaus, L. J. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Gvelachvili, Z. Ben Osman, and J. Vergés, "Present status of the analyses of the first and second spectra of uranium as derived from measurements of optical spectra," Report No. LA-4501, Los Alamos Scientific Laboratory, Los Alamos, N.M., 1971.

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