Abstract

The spectrum of iodine was observed in the region 300–80 Å on a 10.7-m grazing-incidence spectrograph. The source used was a triggered spark. The earlier analysis of I ix has been revised and extended. Parametric level-fitting calculations support the analysis. Forty-three lines have been classified in this spectrum.

© 1980 Optical Society of America

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References

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  1. M. Even-Zohar and B.S. Fraenkel, “A study of euv spectra in the fifth period,” J. Phys. B 5, 1596–1613 (1972).
    [Crossref]
  2. H. Benschop, Y. N. Joshi, and Th. A. M. van Kleef, “The Spectrum of Doubly Ionized Silver: Ag iii,” Can. J. Phys. 53, 493–503 (1975).
    [Crossref]
  3. Y. N. Joshi and Th. A. M. van Kleef, “4d9–4d85p transitions in Cd iv, Sn vi, and Sb vii and the resonance lines of Sn v and Sb vi,” Can. J. Phys. 55, 714–726 (1977).
    [Crossref]
  4. Y. N. Joshi, Th. A. M. van Kleef, and V. S. Kushawaha, “The Fifth Spectrum of Indium: In v,” Can. J. Phys. 54, 889–894 (1976).
    [Crossref]
  5. Th. A. M. van Kleef and Y. N. Joshi, “Analysis of 4d9–4d85p transitions in Sb vii and Te viii and the ionization limits of Sb vi and Te vii,” J. Opt. Soc. Am. 69, 132–140 (1979).
    [Crossref]
  6. R. Poppe, “Parametric treatment of the 3dn−14p configurations in trebly ionized atoms,” Physica 75, 341–350 (1974).
    [Crossref]
  7. R. D. Cowan, “Theoretical calculations of atomic spectra using digital computers,” J. Opt. Soc. Am. 58, 808–818 (1968).
    [Crossref]
  8. C. Froese Fischer, “A multiconfiguration Hartree-Fock program with improved stability,” Comput. Phys. Commun. 4, 107–116 (1972).
    [Crossref]
  9. U. Feldman, M. Swartz, and L. I. Cohen, “Vacuum ultraviolet source,” Rev. Sci. Instrum. 38, 1372–1373 (1967).This source has been subsequently modified by Victor Kaufman of the NBS Laboratory.
    [Crossref]
  10. R. Poppe, R. Hoekstra, and P. F. A. Klinkenberg, “Comparator for Spectroscopic Measurements using an Interferometer and Photoelectric Scanning (COSPINSCA),” Appl. Sci. Res. B 11, 293–309 (1964).
    [Crossref]
  11. R. L. Kelly and L. J. Palumbo, Naval Research Laboratory, NRL Report No. 7599, 1973 (unpublished).

1979 (1)

1977 (1)

Y. N. Joshi and Th. A. M. van Kleef, “4d9–4d85p transitions in Cd iv, Sn vi, and Sb vii and the resonance lines of Sn v and Sb vi,” Can. J. Phys. 55, 714–726 (1977).
[Crossref]

1976 (1)

Y. N. Joshi, Th. A. M. van Kleef, and V. S. Kushawaha, “The Fifth Spectrum of Indium: In v,” Can. J. Phys. 54, 889–894 (1976).
[Crossref]

1975 (1)

H. Benschop, Y. N. Joshi, and Th. A. M. van Kleef, “The Spectrum of Doubly Ionized Silver: Ag iii,” Can. J. Phys. 53, 493–503 (1975).
[Crossref]

1974 (1)

R. Poppe, “Parametric treatment of the 3dn−14p configurations in trebly ionized atoms,” Physica 75, 341–350 (1974).
[Crossref]

1972 (2)

C. Froese Fischer, “A multiconfiguration Hartree-Fock program with improved stability,” Comput. Phys. Commun. 4, 107–116 (1972).
[Crossref]

M. Even-Zohar and B.S. Fraenkel, “A study of euv spectra in the fifth period,” J. Phys. B 5, 1596–1613 (1972).
[Crossref]

1968 (1)

1967 (1)

U. Feldman, M. Swartz, and L. I. Cohen, “Vacuum ultraviolet source,” Rev. Sci. Instrum. 38, 1372–1373 (1967).This source has been subsequently modified by Victor Kaufman of the NBS Laboratory.
[Crossref]

1964 (1)

R. Poppe, R. Hoekstra, and P. F. A. Klinkenberg, “Comparator for Spectroscopic Measurements using an Interferometer and Photoelectric Scanning (COSPINSCA),” Appl. Sci. Res. B 11, 293–309 (1964).
[Crossref]

Benschop, H.

H. Benschop, Y. N. Joshi, and Th. A. M. van Kleef, “The Spectrum of Doubly Ionized Silver: Ag iii,” Can. J. Phys. 53, 493–503 (1975).
[Crossref]

Cohen, L. I.

U. Feldman, M. Swartz, and L. I. Cohen, “Vacuum ultraviolet source,” Rev. Sci. Instrum. 38, 1372–1373 (1967).This source has been subsequently modified by Victor Kaufman of the NBS Laboratory.
[Crossref]

Cowan, R. D.

Even-Zohar, M.

M. Even-Zohar and B.S. Fraenkel, “A study of euv spectra in the fifth period,” J. Phys. B 5, 1596–1613 (1972).
[Crossref]

Feldman, U.

U. Feldman, M. Swartz, and L. I. Cohen, “Vacuum ultraviolet source,” Rev. Sci. Instrum. 38, 1372–1373 (1967).This source has been subsequently modified by Victor Kaufman of the NBS Laboratory.
[Crossref]

Fraenkel, B.S.

M. Even-Zohar and B.S. Fraenkel, “A study of euv spectra in the fifth period,” J. Phys. B 5, 1596–1613 (1972).
[Crossref]

Froese Fischer, C.

C. Froese Fischer, “A multiconfiguration Hartree-Fock program with improved stability,” Comput. Phys. Commun. 4, 107–116 (1972).
[Crossref]

Hoekstra, R.

R. Poppe, R. Hoekstra, and P. F. A. Klinkenberg, “Comparator for Spectroscopic Measurements using an Interferometer and Photoelectric Scanning (COSPINSCA),” Appl. Sci. Res. B 11, 293–309 (1964).
[Crossref]

Joshi, Y. N.

Th. A. M. van Kleef and Y. N. Joshi, “Analysis of 4d9–4d85p transitions in Sb vii and Te viii and the ionization limits of Sb vi and Te vii,” J. Opt. Soc. Am. 69, 132–140 (1979).
[Crossref]

Y. N. Joshi and Th. A. M. van Kleef, “4d9–4d85p transitions in Cd iv, Sn vi, and Sb vii and the resonance lines of Sn v and Sb vi,” Can. J. Phys. 55, 714–726 (1977).
[Crossref]

Y. N. Joshi, Th. A. M. van Kleef, and V. S. Kushawaha, “The Fifth Spectrum of Indium: In v,” Can. J. Phys. 54, 889–894 (1976).
[Crossref]

H. Benschop, Y. N. Joshi, and Th. A. M. van Kleef, “The Spectrum of Doubly Ionized Silver: Ag iii,” Can. J. Phys. 53, 493–503 (1975).
[Crossref]

Kelly, R. L.

R. L. Kelly and L. J. Palumbo, Naval Research Laboratory, NRL Report No. 7599, 1973 (unpublished).

Klinkenberg, P. F. A.

R. Poppe, R. Hoekstra, and P. F. A. Klinkenberg, “Comparator for Spectroscopic Measurements using an Interferometer and Photoelectric Scanning (COSPINSCA),” Appl. Sci. Res. B 11, 293–309 (1964).
[Crossref]

Kushawaha, V. S.

Y. N. Joshi, Th. A. M. van Kleef, and V. S. Kushawaha, “The Fifth Spectrum of Indium: In v,” Can. J. Phys. 54, 889–894 (1976).
[Crossref]

Palumbo, L. J.

R. L. Kelly and L. J. Palumbo, Naval Research Laboratory, NRL Report No. 7599, 1973 (unpublished).

Poppe, R.

R. Poppe, “Parametric treatment of the 3dn−14p configurations in trebly ionized atoms,” Physica 75, 341–350 (1974).
[Crossref]

R. Poppe, R. Hoekstra, and P. F. A. Klinkenberg, “Comparator for Spectroscopic Measurements using an Interferometer and Photoelectric Scanning (COSPINSCA),” Appl. Sci. Res. B 11, 293–309 (1964).
[Crossref]

Swartz, M.

U. Feldman, M. Swartz, and L. I. Cohen, “Vacuum ultraviolet source,” Rev. Sci. Instrum. 38, 1372–1373 (1967).This source has been subsequently modified by Victor Kaufman of the NBS Laboratory.
[Crossref]

van Kleef, Th. A. M.

Th. A. M. van Kleef and Y. N. Joshi, “Analysis of 4d9–4d85p transitions in Sb vii and Te viii and the ionization limits of Sb vi and Te vii,” J. Opt. Soc. Am. 69, 132–140 (1979).
[Crossref]

Y. N. Joshi and Th. A. M. van Kleef, “4d9–4d85p transitions in Cd iv, Sn vi, and Sb vii and the resonance lines of Sn v and Sb vi,” Can. J. Phys. 55, 714–726 (1977).
[Crossref]

Y. N. Joshi, Th. A. M. van Kleef, and V. S. Kushawaha, “The Fifth Spectrum of Indium: In v,” Can. J. Phys. 54, 889–894 (1976).
[Crossref]

H. Benschop, Y. N. Joshi, and Th. A. M. van Kleef, “The Spectrum of Doubly Ionized Silver: Ag iii,” Can. J. Phys. 53, 493–503 (1975).
[Crossref]

Appl. Sci. Res. B (1)

R. Poppe, R. Hoekstra, and P. F. A. Klinkenberg, “Comparator for Spectroscopic Measurements using an Interferometer and Photoelectric Scanning (COSPINSCA),” Appl. Sci. Res. B 11, 293–309 (1964).
[Crossref]

Can. J. Phys. (3)

H. Benschop, Y. N. Joshi, and Th. A. M. van Kleef, “The Spectrum of Doubly Ionized Silver: Ag iii,” Can. J. Phys. 53, 493–503 (1975).
[Crossref]

Y. N. Joshi and Th. A. M. van Kleef, “4d9–4d85p transitions in Cd iv, Sn vi, and Sb vii and the resonance lines of Sn v and Sb vi,” Can. J. Phys. 55, 714–726 (1977).
[Crossref]

Y. N. Joshi, Th. A. M. van Kleef, and V. S. Kushawaha, “The Fifth Spectrum of Indium: In v,” Can. J. Phys. 54, 889–894 (1976).
[Crossref]

Comput. Phys. Commun. (1)

C. Froese Fischer, “A multiconfiguration Hartree-Fock program with improved stability,” Comput. Phys. Commun. 4, 107–116 (1972).
[Crossref]

J. Opt. Soc. Am. (2)

J. Phys. B (1)

M. Even-Zohar and B.S. Fraenkel, “A study of euv spectra in the fifth period,” J. Phys. B 5, 1596–1613 (1972).
[Crossref]

Physica (1)

R. Poppe, “Parametric treatment of the 3dn−14p configurations in trebly ionized atoms,” Physica 75, 341–350 (1974).
[Crossref]

Rev. Sci. Instrum. (1)

U. Feldman, M. Swartz, and L. I. Cohen, “Vacuum ultraviolet source,” Rev. Sci. Instrum. 38, 1372–1373 (1967).This source has been subsequently modified by Victor Kaufman of the NBS Laboratory.
[Crossref]

Other (1)

R. L. Kelly and L. J. Palumbo, Naval Research Laboratory, NRL Report No. 7599, 1973 (unpublished).

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Figures (1)

FIG. 1
FIG. 1

Structure of the 4d85p configuration of I ix. The levels are designated in J1j coupling. The predicted positions of the levels, not determined in the present analysis, are denoted by dashed lines.

Tables (4)

Tables Icon

TABLE I Least-squares-fitted (LSF) and Hartree-Fock (HF) parameter values (cm−1) for the 4d9 and 4d85p configurations in I ix.

Tables Icon

TABLE II Energy levels and LS percentage compositions of the levels of the 4d9 and 4d85p configurations in I ix.

Tables Icon

TABLE III Percentage composition of the levels of the 4d85p configuration of I ix in J1j coupling scheme.

Tables Icon

TABLE IV 4d9–4d85p transitions in I ix.

Equations (45)

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LSF HF
( 1 S ) 2 P 3 / 2 0
( 1 S ) 2 P 3 / 2 0
( 1 S ) 2 P 1 / 2 0
( 1 G ) 2 G 7 / 2 0
( 1 D ) 2 D 5 / 2 0
( 3 P ) 2 D 3 / 2 0
( 3 P ) 2 P 3 / 2 0
( 1 G ) F 5 / 2 0
( 1 D ) 2 P 1 / 2 0
( 1 D ) 2 P 3 / 2 0
( 1 D ) 2 D 5 / 2 0
( 3 P ) 4 D 7 / 2 0
( 3 F ) 2 D 3 / 2 0
( 3 F ) 2 F 5 / 2 0
( 3 P ) 2 D 3 / 2 0
( 3 P ) 2 S 1 / 2 0
( 3 P ) 4 D 5 / 2 0
( 3 F ) 4 F 3 / 2 0
( 1 G ) 2 F 7 / 2 0
( 1 D ) F 5 / 2 0
( 3 P ) 2 P 3 / 2 0
( 3 P ) 4 D 3 / 2 0
( 1 G ) 2 F 5 / 2 0
( 3 F ) 4 F 7 / 2 0
( 1 D ) 2 P 3 / 2 0
( 3 P ) 2 D 5 / 2 0
( 3 F ) 2 G 7 / 2 0
( 3 F ) 4 F 5 / 2 0
( 3 F ) 2 D 3 / 2 0
( 3 F ) 2 F 5 / 2 0
( 3 P ) 2 P 1 / 2 0
( 3 F ) 2 D 5 / 2 0
( 3 P ) 4 D 1 / 2 0
( 3 F ) 4 F 3 / 2 0
( 1 D ) 2 F 5 / 2 0
( 3 F ) 2 F 7 / 2 0
( 3 P ) 4 P 5 / 2 0
( 3 P ) 2 D 5 / 2 0
( 3 F ) 4 D 3 / 2 0
( 3 F ) 4 G 5 / 2 0
( 3 F ) 4 G 7 / 2 0
( 3 P ) 4 P 3 / 2 0
( 3 F ) 4 D 7 / 2 0
( 1 D ) 2 D 3 / 2 0