Abstract

We have used optical pumping to produce a substantial 235U enrichment in the metastable levels of U i in the discharge afterglow of a hollow-cathode vapor generator. The measured isotope-enrichment factor for the level at 3800 cm−1 is approximately 20.

© 1983 Optical Society of America

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References

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  1. A. C. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U. Press, Cambridge, 1971).
  2. J. Brossel, “Pompage optique” in Optique et Electronique Quantique (Gordon and Breach, New York, 1964), pp. 189–327.
  3. W. Happer, “Optical pumping,” Rev. Mod. Phys. 44, 169–249 (1972).
    [CrossRef]
  4. J. M. Gagné, M. Carleer, B. Leblanc, Y. Demers, and B. Mongeau, “Generateur de vapeur d’uranium: la lampe á cathode creuse pulsée,” Appl. Opt. 18, 2107–2111 (1979).
    [CrossRef]
  5. T. Bieniewski, “Absolute oscillator strengths for neutral atomic uranium,” J. Opt. Soc. Am. 68, 1173–1181 (1978).
    [CrossRef]
  6. C. Dréze, Y. Demers, and J. M. Gagné, “Mechanistic study of the optogalvanic effect in a hollow-cathode discharge,” J. Opt. Soc. Am. 72, 912–917 (1982).
    [CrossRef]
  7. Y. Demers, M.S. Thesis (Ecole Polytechnique, Montreal, Canada, 1980).

1982 (1)

1979 (1)

1978 (1)

1972 (1)

W. Happer, “Optical pumping,” Rev. Mod. Phys. 44, 169–249 (1972).
[CrossRef]

Bieniewski, T.

Brossel, J.

J. Brossel, “Pompage optique” in Optique et Electronique Quantique (Gordon and Breach, New York, 1964), pp. 189–327.

Carleer, M.

Demers, Y.

Dréze, C.

Gagné, J. M.

Happer, W.

W. Happer, “Optical pumping,” Rev. Mod. Phys. 44, 169–249 (1972).
[CrossRef]

Leblanc, B.

Mitchell, A. C.

A. C. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U. Press, Cambridge, 1971).

Mongeau, B.

Zemansky, M. W.

A. C. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U. Press, Cambridge, 1971).

Appl. Opt. (1)

J. Opt. Soc. Am. (2)

Rev. Mod. Phys. (1)

W. Happer, “Optical pumping,” Rev. Mod. Phys. 44, 169–249 (1972).
[CrossRef]

Other (3)

Y. Demers, M.S. Thesis (Ecole Polytechnique, Montreal, Canada, 1980).

A. C. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (Cambridge U. Press, Cambridge, 1971).

J. Brossel, “Pompage optique” in Optique et Electronique Quantique (Gordon and Breach, New York, 1964), pp. 189–327.

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Figures (3)

Fig. 1
Fig. 1

Schemes of U-isotope enrichment and of its detection.

Fig. 2
Fig. 2

Experimental setup (BS, beam splitter; M, plane mirror; L, converging lens).

Fig. 3
Fig. 3

Recordings of fluorescence at λF = 4885 Å when the probe beam scans the absorption profiles of the 238U and 235U isotopes at 5999 Å. Part (a) pump laser on, part (b) pump laser off.