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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 8 — Aug. 1, 1999
  • pp: 1280–1285

Revised and extended analysis of seven-times-ionized cesium: Cs viii

R. Gayasov and Y. N. Joshi  »View Author Affiliations


JOSA B, Vol. 16, Issue 8, pp. 1280-1285 (1999)
http://dx.doi.org/10.1364/JOSAB.16.001280


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Abstract

The spectrum of cesium was recorded in the 300–1240-Å region on a 3-m normal-incidence spectrograph and in the 100–300-Å region on a 10.7-m grazing-incidence spectrograph. The earlier analysis of Cs viii by KaufmanSugar [J. Opt. Soc. Am. B 4, 1919 (1987)] was confirmed, except for the two levels 5s5d 1D2 and 4d95s24f 1P1, and all other, earlier level values were revised. In addition, 12 levels of the 5p4f, the missing levels in the earlier-analyzed 5p2 1S0 and 5s6s 1S0, and all levels of the 5s4f,5s5f and 11 of the 12 levels of the 5p5d configurations of the odd-parity configurations have been located. The Hartree–Fock calculations with relativistic corrections and least-squares-fitting calculations were carried out, which helped in the satisfactory interpretation of the spectrum. One hundred ten lines are now classified in this spectrum, of which eighty-six are newly classified lines.

© 1999 Optical Society of America

OCIS Codes
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6350) Spectroscopy : Spectroscopy, ionization
(300.6540) Spectroscopy : Spectroscopy, ultraviolet
(300.6550) Spectroscopy : Spectroscopy, visible

Citation
R. Gayasov and Y. N. Joshi, "Revised and extended analysis of seven-times-ionized cesium: Cs VIII," J. Opt. Soc. Am. B 16, 1280-1285 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-8-1280


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References

  1. V. Kaufman and J. Sugar, “Cd I isoelectronic sequence: wavelength and energy levels for Xe VII through Eu XVI,” J. Opt. Soc. Am. B 4, 1919–1923 (1987). [CrossRef]
  2. A. Tauheed and Y. N. Joshi, “Analysis of the 5s25p4–(5s5p5+5s25p35d+5s25p36s) transition array of trebly ionized cesium (Cs IV),” J. Phys. B 27, 405–412 (1994). [CrossRef]
  3. A. Tauheed and Y. N. Joshi, “Analysis of four times ionized cesium (Cs V),” Phys. Scr. 47, 550–554 (1993). [CrossRef]
  4. A. Tauheed and Y. N. Joshi, “Analysis of the four lowest configurations of five times ionized cesium (Cs VI),” Phys. Scr. 44, 579–581 (1991). [CrossRef]
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  8. A. Tauheed, Y. N. Joshi, and E. H. Pinnington, “Revised and extended analysis of I VI,” Phys. Scr. 56, 289–292 (1997). [CrossRef]
  9. G. H. Cavalcanti, F. R. T. Luna, A. G. Trigueiros, F. Bredice, H. Sobral, R. Hutton, and M. Wang, “Vacuum ultraviolet spectrum of six-times ionized xenon, Xe VII,” J. Opt. Soc. Am. B 14, 2459–2462 (1997). [CrossRef]
  10. R. Gayasov, Y. N. Joshi, and A. N. Ryabtsev, “Revised and extended analysis of nine-times ionized lanthanum (La X),” Phys. Scr. (to be published).
  11. R. L. Kelly and L. J. Palumbo, “Atomic and ionic emission lines below 2000 Å—hydrogen through krypton,” J. Phys. Chem. Ref. Data 16, 1 (1987).
  12. R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981) and Cowan Code programs.
  13. V. I. Azarov, “Formal approach to the solution of complex spectra identification problem. 1 and 2,” Phys. Scr. 44, 528–538 (1993). [CrossRef]
  14. R. R. Gayasov, S. S. Churilov, A. N. Ryabtsev, Y. N. Joshi, and V. I. Azarov, “Interpretation of the level structure of the 4d8, 4d7(5p+4f ) and 4p54d9 configuration of the nine-times ionized iodine spectrum (I X),” J. Opt. Soc. Am. B 14, 1013–1028 (1997). [CrossRef]
  15. R. R. Gayasov and Y. N. Joshi, “Transitions from the configurations involving 4f-electrons in Cs IX–La XI and Cs XI–Ce XIV,” J. Phys. B 31, 705–709 (1998). [CrossRef]

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