Abstract

Spectral observations are reported for transitions to the ground term and first excited term of the one-electron configurations in the 4<i>ƒ</i><sup>14</sup>5<i>p</i><sup>6</sup><i>nl</i> isoelectronic sequence from Yb II through Bi XV. Resonance lines are reported for the isoelectronic sequence Yb III through Bi XVI in which the ground state is 4<i>ƒ</i><sup>14</sup>5<i>p</i><sup>6</sup><sup>1</sup><i>S</i><sub>0</sub> and the upper levels are the <i>J</i> = 1 levels of the 4<i>ƒ</i><sup>13</sup>5<i>p</i> 6<i>nd</i>, 4<i>ƒ</i><sup>14</sup>5<i>p</i> 5<i>nd</i>, and 4<i>ƒ</i><sup>14</sup>5<i>p</i><sup>5</sup><i>ns</i> configurations. The wavelengths fall in the range 70–3700 Å. The spectra were produced by means of sliding and triggered spark discharges and photographed with 10.7 m normal and grazing incidence spectrographs. The data in the Yb III sequence demonstrate the crossing of binding energies of the 4<i>ƒ</i> and 5<i>p</i> shells at W VII. Rydberg series terms were found in a sufficient number of cases to provide extrapolation curves through Bi XV and Bi XVI. These data enabled us to calculate ionization energies for each of these ions with an uncertainty of ~1% or better.

© 1976 Optical Society of America

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  3. F. G. Meijer and P. F. A. Klinkenberg, "The structure of the spectrum of Ta V," Physica (Utr.) 69, 111–118 (1973).
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  19. J. Sugar and V. Kaufman, "Nuclear magnetic dipole moment of 181Ta," Phys. Rev. C 12, 1336–1339 (1975).
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  22. E. R. Cohen and B. N. Taylor, "The 1973 least-squares adjustment of the fundamental constants," J. Phys. Chem. Ref. Data 2, 633–734 (1973).

1975 (4)

V. Kaufman and J. Sugar, Spectrum and energy levels of five-times ionized tantalum (Ta VI), J. Opt. Soc. Am. 65, 302–309 (1975).

J. Sugar and V. Kaufman, Seventh spectrum of tungsten (W VIII); resonance lines of Hf V," Phys. Rev. A 12, 994–1012 (1975).

J. Sugar and V. Kaufman, "Nuclear magnetic dipole moment of 181Ta," Phys. Rev. C 12, 1336–1339 (1975).

V. Kaufman and J. Sugar, "Spectrum of six-times ionized rhenium (Re VIII)," Phys. Rev. A 12, 1402–1403 (1975).

1974 (3)

J. Sugar and V. Kaufman, "Spectra and energy levels of three and four-times ionized hafnium (Hf IV and Hf V)," J. Opt. Soc. Am. 64, 1656–1664 (1974).

F. G. Meijer, "On the spectrum of Hf IV," Physica (Utr.) 72, 431–432 (1974).

F. G. Meijer, "The sixth spectrum of tungsten, W VI," Physica (Utr.) 73, 415–420 (1974).

1973 (4)

F. G. Meijer and P. F. A. Klinkenberg, "The structure of the spectrum of Ta V," Physica (Utr.) 69, 111–118 (1973).

V. Kaufman and J. Sugar, "One-electron spectrum of singlyionized ytterbium (Yb II), " J. Opt. Soc. Am. 63, 1168–1172 (1973).

J. Sugar and J. Reader, "Ionization energies of doubly and triply ionized rare earths," J. Chem. Phys. 59, 2083–2089 (1973).

E. R. Cohen and B. N. Taylor, "The 1973 least-squares adjustment of the fundamental constants," J. Phys. Chem. Ref. Data 2, 633–734 (1973).

1972 (3)

1971 (1)

1969 (1)

L. Å Svensson and J. O. Ekberg, "The titanium vacuumspark spectrum from 50 to 425 Å, " Ark. Fys. 40, 145–163 (1969).

1968 (1)

1967 (1)

W. F. Meggers, "The second spectrum of ytterbium (Yb II,)" J. Res. Natl. Bur. Stand. (U. S.) 71A, 396–544 (1967).

1965 (1)

1963 (1)

1961 (1)

P. F. A. Klinkenberg, T. A. M. van Kleef, and P. E. Noorman, "Spectral structure of doubly and triply ionized hafnium, Physica (Utr.) 27, 1177–1188 (1961).

Bryant, B. W.

Cohen, E. R.

E. R. Cohen and B. N. Taylor, "The 1973 least-squares adjustment of the fundamental constants," J. Phys. Chem. Ref. Data 2, 633–734 (1973).

Cohen, L.

Ekberg, J. O.

J. Reader, G. L. Epstein, and J. O. Ekberg, "Spectra of Rb II, Sr III, Y IV, Zr V, Nb VI, and Mo VII in the vacuum ultraviolet," J. Opt. Soc. Am. 62, 273–284 (1972).

L. Å Svensson and J. O. Ekberg, "The titanium vacuumspark spectrum from 50 to 425 Å, " Ark. Fys. 40, 145–163 (1969).

Epstein, G. L.

Feldman, U.

Kaufman, V.

Kelly, R. L.

R. L. Kelly and L. J. Palumbo, Atomic and Ionic Emission Lines Below 2000 Angstroms–Hydrogen Through Krypton, NRL Report 7599 (U. S. Govt. Printing Office, Washington, D.C., 1973), pp. 1–992.

Klinkenberg, P. F. A.

F. G. Meijer and P. F. A. Klinkenberg, "The structure of the spectrum of Ta V," Physica (Utr.) 69, 111–118 (1973).

P. F. A. Klinkenberg, T. A. M. van Kleef, and P. E. Noorman, "Spectral structure of doubly and triply ionized hafnium, Physica (Utr.) 27, 1177–1188 (1961).

Meggers, W. F.

W. F. Meggers, "The second spectrum of ytterbium (Yb II,)" J. Res. Natl. Bur. Stand. (U. S.) 71A, 396–544 (1967).

Meijer, F. G.

F. G. Meijer, "The sixth spectrum of tungsten, W VI," Physica (Utr.) 73, 415–420 (1974).

F. G. Meijer, "On the spectrum of Hf IV," Physica (Utr.) 72, 431–432 (1974).

F. G. Meijer and P. F. A. Klinkenberg, "The structure of the spectrum of Ta V," Physica (Utr.) 69, 111–118 (1973).

Noorman, P. E.

P. F. A. Klinkenberg, T. A. M. van Kleef, and P. E. Noorman, "Spectral structure of doubly and triply ionized hafnium, Physica (Utr.) 27, 1177–1188 (1961).

Palumbo, L. J.

R. L. Kelly and L. J. Palumbo, Atomic and Ionic Emission Lines Below 2000 Angstroms–Hydrogen Through Krypton, NRL Report 7599 (U. S. Govt. Printing Office, Washington, D.C., 1973), pp. 1–992.

Reader, J.

Sugar, J.

Svensson, L. Å

L. Å Svensson and J. O. Ekberg, "The titanium vacuumspark spectrum from 50 to 425 Å, " Ark. Fys. 40, 145–163 (1969).

Swartz, M.

Taylor, B. N.

E. R. Cohen and B. N. Taylor, "The 1973 least-squares adjustment of the fundamental constants," J. Phys. Chem. Ref. Data 2, 633–734 (1973).

Underwood, J. H.

van Kleef, T. A. M.

P. F. A. Klinkenberg, T. A. M. van Kleef, and P. E. Noorman, "Spectral structure of doubly and triply ionized hafnium, Physica (Utr.) 27, 1177–1188 (1961).

Ark. Fys. (1)

L. Å Svensson and J. O. Ekberg, "The titanium vacuumspark spectrum from 50 to 425 Å, " Ark. Fys. 40, 145–163 (1969).

J. Chem. Phys. (1)

J. Sugar and J. Reader, "Ionization energies of doubly and triply ionized rare earths," J. Chem. Phys. 59, 2083–2089 (1973).

J. Opt. Soc. Am. (10)

J. Phys. Chem. Ref. Data (1)

E. R. Cohen and B. N. Taylor, "The 1973 least-squares adjustment of the fundamental constants," J. Phys. Chem. Ref. Data 2, 633–734 (1973).

J. Res. Natl. Bur. Stand. U. S. (1)

W. F. Meggers, "The second spectrum of ytterbium (Yb II,)" J. Res. Natl. Bur. Stand. (U. S.) 71A, 396–544 (1967).

Phys. Rev. (3)

J. Sugar and V. Kaufman, Seventh spectrum of tungsten (W VIII); resonance lines of Hf V," Phys. Rev. A 12, 994–1012 (1975).

J. Sugar and V. Kaufman, "Nuclear magnetic dipole moment of 181Ta," Phys. Rev. C 12, 1336–1339 (1975).

V. Kaufman and J. Sugar, "Spectrum of six-times ionized rhenium (Re VIII)," Phys. Rev. A 12, 1402–1403 (1975).

Physica (Utr.) (4)

P. F. A. Klinkenberg, T. A. M. van Kleef, and P. E. Noorman, "Spectral structure of doubly and triply ionized hafnium, Physica (Utr.) 27, 1177–1188 (1961).

F. G. Meijer, "On the spectrum of Hf IV," Physica (Utr.) 72, 431–432 (1974).

F. G. Meijer and P. F. A. Klinkenberg, "The structure of the spectrum of Ta V," Physica (Utr.) 69, 111–118 (1973).

F. G. Meijer, "The sixth spectrum of tungsten, W VI," Physica (Utr.) 73, 415–420 (1974).

Other (1)

R. L. Kelly and L. J. Palumbo, Atomic and Ionic Emission Lines Below 2000 Angstroms–Hydrogen Through Krypton, NRL Report 7599 (U. S. Govt. Printing Office, Washington, D.C., 1973), pp. 1–992.

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