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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 10, Iss. 11 — Nov. 1, 1993
  • pp: 1977–1979

Rh i isoelectronic sequence observed from Er23+ to Pt33+

Jack Sugar, Victor Kaufman, and William L. Rowan  »View Author Affiliations

JOSA B, Vol. 10, Issue 11, pp. 1977-1979 (1993)

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The TEXT tokamak was used to obtain spectra of highly ionized Er, Yb, Hf, W, and Pt. Injection of these elements into the plasma was achieved by laser ablation of thin films of metal deposited on glass slides and mounted at the inner wall of the vessel. The spectra were photographed with a 2.2-m grazing-incidence spectrograph set at a grazing angle of 4°. These spectra occur in a very small wavelength interval, for example, ~2 Å at 50 Å in W In this spectral range we previously classified lines of the Ag and Pd isoelectronic sequences. We have now classified lines of the Rh isoelectronic sequence 4d9–4d84f, which accounts for the remaining strong lines in this dense but well-resolved group. No lines of this array have previously been identified. They were classified by comparison of observed and calculated transition energies along the isoelectronic sequence.

© 1993 Optical Society of America

Original Manuscript: April 21, 1993
Published: November 1, 1993

Jack Sugar, William L. Rowan, and Victor Kaufman, "Rh i isoelectronic sequence observed from Er23+ to Pt33+," J. Opt. Soc. Am. B 10, 1977-1979 (1993)

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  1. V. Kaufman, J. Sugar, “Ag i isoelectronic sequence: wavelengths and energy levels for Ivii through La xi,” Phys. Scr. 24, 738 (1981); J. Sugar, V. Kaufman, “Ag i isoelectronic sequence: wavelengths and energy levels for Ce xii through Ho xxi and for W xxviii,” Phys. Scr. 24, 742 (1981). [CrossRef]
  2. J. Sugar, V. Kaufman, “Resonance lines in the Pd i isoelectronic sequence: Iviii to Ho xxii,” Phys. Scr. 26, 429 (1982).
  3. J. Sugar, V. Kaufman, W. L. Rowan, “Spectra of Ag i isoelectronic sequence observed from Er21+to au32+,” J. Opt. Soc. am. B 10, 1321 (1993). [CrossRef]
  4. J. Sugar, V. Kaufman, W. L. Rowan, “Observation of Pd-like resonance lines through Pt32+and Zn-like resonance lines of Er38+and Hf42+,” J. Opt. Soc. Am. B 10, 799 (1993). [CrossRef]
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  7. W. E. Behring, L. Cohen, U. Feldman, G. Doschek, “The solar spectrum: wavelengths and identifications from 160 to 770 angstroms,” Astrophys. J. 203, 521 (1976). [CrossRef]
  8. B. Edlén, B. Löfstrand, “The term system of C v,” J. Phys. B 3, 1380 (1970). [CrossRef]
  9. R. D. Cowan, The Theory of Atomic Structure and Atomic Spectra (U. California Press, Berkeley, Calif., 1981).
  10. P. Mandelbaum, M. Finkenthal, J. L. Schwob, M. Klapisch, “Interpretation of the quasicontinuum band emitted by highly ionized rare-earth elements in the 70–100 Å range,” Phys. Rev. A 35, 5051 (1987). [CrossRef] [PubMed]
  11. E. Hinnov, M. Mattioli, “Observations of multiply ionized tungsten radiation in the PLT discharges,” Phys. Lett. 66A, 109 (1980).

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