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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 69, Iss. 2 — Feb. 1, 1979
  • pp: 230–232

Hyperfine structure measurements of high-lying levels of uranium

L. A. Hackel, C. F. Bender, M. A. Johnson, and M. C. Rushford  »View Author Affiliations


JOSA, Vol. 69, Issue 2, pp. 230-232 (1979)
http://dx.doi.org/10.1364/JOSA.69.000230


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Abstract

A technique for precisely measuring hyperfine structure of any level of neutral uranium which can be excited by a single or multistep transition from the ground or a low-lying-metastable state has been developed. Numerous spectra were measured and fit to obtain precise hyperfine splitting constants. In particular, measurements on the 31 869-cm−1 odd level have determined the following: J = 6, magnetic dipole constant A = −47.2 ± 0.6 MHz and electric quadrupole constant B = 1892 ± 26 MHz. Structure of serveral excited states of known configuration were measured including the 15 632-cm−1f2d2s2(5L7) and the 16 930-cm−1 ƒ3dsp (7K5) levels.

© 1979 Optical Society of America

Citation
L. A. Hackel, C. F. Bender, M. A. Johnson, and M. C. Rushford, "Hyperfine structure measurements of high-lying levels of uranium," J. Opt. Soc. Am. 69, 230-232 (1979)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-69-2-230


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References

  1. S. Gerstenkorn, P. Luc, U. Bauche-Arnoult, and D. Merle, "Structure Hyperfine du Niveau Fondamental, Moments Dipolarire et Quadrupolaire de l'Isotope 235 de l'Uranium," J. Phys. 34, 805-812, (1973).
  2. H.-D. V. Bohm, "Isotopentrennung von 235U and 238U im Atomstrahl mit selektiver zweistufiger Photoionisation,". Vom Fachbereich Physik der Universitat Hamburg als Dissertation angenommene Arbeit. Gesellschaft fur Kernenergieverwertung in Schiffbau und Schiffahrt mbH. Geestacht (1977). ("Isotope Separation of 235U and 238U in an Atomic Beam with Selective Two-Step Photoionization," only available English translation at Lawrence Livermore Laboratory, P.O. Box 808, Livermore, California 94550. UCRLTRANS-11327.)
  3. G. Janes. H. K. Forsen, and R. H. Levy, Symposium Series of the American Institute of Chem. Engr. Series No. 169, Vol. 73, 1977, edited by Manson Benedict (Am. Inst. Chem. Eng., New York, 1977) p 62.
  4. I. I. Sobelḿan, Introduction to the Theory of Atomic Spectra, (Pergamon, New York, 1972).
  5. J. Blaise, and L. J. Radziemski, "Energy Levels of Neutral Atomic Uranium (U I)," J. Opt. Soc. Am. 66, 644 (1976).

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