Abstract

The spectra of Ar v–Ar viii have been studied in the wavelength region of 400–1500 Å by using beam-foil excitation. Several new transition classifications are proposed in Ar vii and Ar viii. Lifetimes have been measured for 19 excited states in Ar v–Ar viii. The results are compared with previous measurements and with theoretical calculations.

© 1981 Optical Society of America

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  4. C. F. Fischer, “Oscillator strengths for some D–F transitions in the Mg i sequence,” J. Opt. Soc. Am. 69, 118–125 (1979).
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  5. C. F. Fischer, “Z-dependence of correlation effects and f values in the sodium isoelectronic sequence,” Can. J. Phys. 54, 1465–1481 (1976).
    [CrossRef]
  6. C. F. Fischer, “Oscillator strengths for the 2P–2D transitions of the Al i sequence,” Can. J. Phys. 54, 740–747 (1976).
    [CrossRef]
  7. P. Shorer, C. D. Lin, and W. R. Johnson, “Oscillator strengths for the magnesium isoelectronic sequence,” Phys. Rev. A 16, 1109–1116 (1977).
    [CrossRef]
  8. K. T. Cheng and W. R. Johnson, “Excitation energies and line strengths in the Mg isoelectronic sequence,” Phys. Rev. A 16, 263–272 (1977).
    [CrossRef]
  9. Y.-K. Kim and K. T. Cheng, “Transition probabilities for the resonance transitions of Na-like ions,” J. Opt. Soc. Am. 68, 836–842 (1978).
    [CrossRef]
  10. A. W. Weiss, “Hartree–Fock line strengths for the lithium, sodium, and copper isoelectronic sequences,” J. Quant. Spectrosc. Radiat. Transfer 18, 481–490 (1977).
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  12. O. Sinanoǧlu and D. R. Beck, “New theoretical transition probabilities for the Si i isoelectronic sequence,” Chem. Phys. Lett. 24, 20–21 (1974).
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  13. D. R. Beck and O. Sinanoǧlu, “Resonance transition probabilities for third-row atoms and ions including the important correlation effects,“ Phys. Rev. Lett. 28, 945–948 (1972).
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  14. M. Aymar and E. Luc-Koenig, “Relativistic effects on transition probabilities in the Mg isoelectronic sequence,” Phys. Rev. A 15, 821–832 (1977).
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  18. H. G. Berry, “Beam-foil spectroscopy,” Rep. Prog. Phys. 40, 155–217 (1977).
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  21. J. A. Kernahan and et al., “Radiative lifetime measurements in Al ii–vii,” Phys. Scr. 19, 267–270 (1979).
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    [CrossRef]
  23. T. Andersen, K. A. Jessen, and G. Sørensen, “Beam-foil excitation studies of aluminum with a heavy-ion accelerator,” J. Opt. Soc. Am. 59, 1197–1201 (1969).
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  27. A. E. Livingston and et al., “Radiative-lifetime measurements for sulfur and silicon transitions observed in interstellar absorption spectra,” Astrophys. Lett.17, 23–25 (1976); in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 339–346.
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  28. D. J. G. Irwin and A. E. Livingston, “Lifetime measurements in fluorine and silicon in the vacuum ultraviolet,” Can. J. Phys. 51, 848–851 (1973).
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  29. D. J. G. Irwin, A. E. Livingston, and J. A. Kernahan, “Beam-foil lifetimes in the third period elements silicon, sulfur, and argon,” Nucl. Instrum. Methods 110, 111–117 (1973).
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  30. A. E. Livingston and et al., “Beam-foil studies of phosphorus in the vacuum ultraviolet,” Phys. Scr. 12, 223–229 (1975).
    [CrossRef]
  31. P. D. Dumont, H. P. Garnir, and Y. Baudinet-Robinet, “Beam-foil study of sulfur between 500 and 1200 Å,” J. Opt. Soc. Am. 68, 825–829 (1978).
    [CrossRef]
  32. B. I. Dynefors and I. Martinson, “Beam-foil studies of ionized sulfur,” Phys. Scr. 17, 123–129 (1978).
    [CrossRef]
  33. D. J. G. Irwin and A. E. Livingston, “Beam-foil spectroscopy of sulfur in the vacuum ultraviolet,” Can. J. Phys. 54, 805–815 (1976).
    [CrossRef]
  34. H. G. Berry and et al., “Mean-life measurements of ionized Ar and Cl excited states at grazing incidence wavelengths,” Phys. Rev. A 14, 1457–1462 (1976).
    [CrossRef]
  35. H. G. Berry and C. H. Batson, “Spectroscopy of heavy ions using the beam-foil technique,” in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 367–375.
    [CrossRef]
  36. S. N. Bhardwaj, H. G. Berry, and T. Mossberg, “Lifetimes of some highly-excited terms in Cl iv–Cl ix,” Phys. Scr. 9, 331–334 (1974).
    [CrossRef]
  37. S. Bashkin and et al., “Beam-foil studies of radiative transitions and lifetimes in Cl iv–Cl x,” Phys. Scr. 8, 285–291 (1973).
    [CrossRef]
  38. E. H. Pinnington and et al., “Beam-foil lifetime measurements using andc analysis for the resonance doublet in Ar viii, Kr viii, and Xe viii,” Phys. Scr. 20, 151–155 (1979).
    [CrossRef]
  39. A. E. Livingston, D. J. G. Irwin, and E. H. Pinnington, “Lifetime measurements in Ar ii–Ar viii,” J. Opt. Soc. Am. 62, 1303–1308 (1972).
    [CrossRef]
  40. E. H. Pinnington, B. Curnutte, and M. Dufay, “Argon spectrum between 500 and 1000 Å produced by beam-foil excitation,” J. Opt. Soc. Am. 61, 978–980 (1971).
    [CrossRef]
  41. A. E. Livingston, “Beam-foil investigations of atomic oscillator strengths,” Ph.D. thesis (University of Alberta, 1974, unpublished).
  42. D. J. Pegg and et al., “Radiative lifetimes of the low-lying levels of Na-like copper,” Phys. Rev. A 16, 2008–2010 (1977).
    [CrossRef]
  43. L. C. Northcliffe and R. F. Schilling, “Range and stopping power tables for heavy ions,” Nucl. Data Tables A 7, 233–463 (1970).
    [CrossRef]
  44. E. H. Pinnington and et al., “Mean-life measurements for some energy levels of O i–O vi,” Can. J. Phys. 52, 1961–1970 (1974).
  45. R. L. Kelly and L. J. Palumbo, “Atomic and ionic emission lines below 2000 Angstroms—hydrogen through krypton,” NRL Report 7599 (U.S. Government Printing Office, Washington, D.C., 1973).
  46. G. W. Erickson, “Energy levels of one-electron atoms,” J. Chem. Phys. Ref. Data 6, 831–869 (1977).
    [CrossRef]
  47. J. D. Garcia and J. E. Mack, “Energy levels and line tables for one-electron atomic spectra,” J. Opt. Soc. Am. 55, 654–685 (1965).
    [CrossRef]
  48. B. Edlén, “Atomic spectra,” in Handbuch der Physik, Vol. 27 (Springer-Verlag, New York, 1964), pp. 80–220.
  49. B. Edlén, “The transitions 3s–3p and 3p–3d and the ionization energy in the Na i isoelectronic sequence,” Phys. Scr. 17, 565–574 (1978).
    [CrossRef]
  50. L. J. Curtis, “Dipole polarisabilities for single valence electron ions,” Phys. Scr. 21, 162–164 (1980).
    [CrossRef]
  51. P. O. Zetterberg and C. E. Magnusson, “The spectrum and term system of P iv,” Phys. Scr. 15, 189–201 (1977).
    [CrossRef]
  52. J. O. Ekberg, “Analyses of the Mg i-like spectra K viii, Ca ix, Sc x, and Ti xi,” Phys. Scr. 4, 101–109 (1971).
    [CrossRef]
  53. B. C. Fawcett, A. Ridgeley, and G. E. Bromage, “The spectrum Ar ix and extended spectral classifications in Ar v to Ar viii and Ar x,” Phys. Scr. 18, 315–322 (1978).
    [CrossRef]
  54. D. J. G. Irwin and A. E. Livingston, “homer: A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data,” Comput. Phys. Commun. 7, 95–113 (1974).
    [CrossRef]
  55. L. J. Curtis, H. G. Berry, and J. Bromander, “A meanlife measurement of the 3d2D resonance doublet in Si ii by a technique which exactly accounts for cascading,” Phys. Lett. 34A, 169–170 (1971).
  56. M. Aymar, “Determination théorique des durées de vie des niveaux 3s 3p3 dans la séquence isoéléctronique de Si i,” Physica 74, 205–213 (1974).
    [CrossRef]
  57. R. J. S. Crossley and A. Dalgarno, “An expansion method for calculating atomic properties, V, Transition probabilities of M shell electrons,” Proc. Roy. Soc. A 286, 510–518 (1965).
    [CrossRef]
  58. R. N. Zare, “Correlation effects in complex spectra, II, Transition probabilities for the magnesium isoelectronic sequence,” J. Chem. Phys. 47, 3561–3572 (1967).
    [CrossRef]
  59. A. W. Weiss, “Theoretical multiplet strengths for Mg i, Al ii, and Si iii,” J. Chem. Phys. 47, 3573–3578 (1967).
    [CrossRef]
  60. E. Biémont, “Systemic trends of Hartree–Fock oscillator strengths along the sodium isoelectronic sequence,” J. Quant. Spectrosc. Radiat. Transfer 15, 531–542 (1975).
    [CrossRef]
  61. D. R. Flower and H. Nussbaumer, “Relative intensities of solar emission lines of ions in the sodium isoelectronic sequence,” Astron. Astrophys. 42, 265–268 (1975).
  62. R. J. S. Crossley, L. J. Curtis, and C. F. Fischer, “Discrepancies between theoretical and experimental atomic oscillator strengths of the sodium isoelectronic sequence resonance transition,” Phys. Lett. 57A, 220–222 (1976).
  63. H. G. Berry and et al., “Beam-foil spectrum of sulfur 600–4000 Å,” J. Opt. Soc. Am. 60, 335–344 (1970).
    [CrossRef]

1980 (3)

C. F. Fischer, “Theoretical energy levels of 3F0 Rydberg series for Mg i, Al ii, and Si iii,” Phys. Scr. 21, 466–471 (1980).
[CrossRef]

S. Bashkin and et al., “Lifetimes for excited levels in Si i–Si iv,” Phys. Scr. 21, 820–824 (1980).
[CrossRef]

L. J. Curtis, “Dipole polarisabilities for single valence electron ions,” Phys. Scr. 21, 162–164 (1980).
[CrossRef]

1979 (3)

E. H. Pinnington and et al., “Beam-foil lifetime measurements using andc analysis for the resonance doublet in Ar viii, Kr viii, and Xe viii,” Phys. Scr. 20, 151–155 (1979).
[CrossRef]

C. F. Fischer, “Oscillator strengths for some D–F transitions in the Mg i sequence,” J. Opt. Soc. Am. 69, 118–125 (1979).
[CrossRef]

J. A. Kernahan and et al., “Radiative lifetime measurements in Al ii–vii,” Phys. Scr. 19, 267–270 (1979).
[CrossRef]

1978 (5)

Y.-K. Kim and K. T. Cheng, “Transition probabilities for the resonance transitions of Na-like ions,” J. Opt. Soc. Am. 68, 836–842 (1978).
[CrossRef]

P. D. Dumont, H. P. Garnir, and Y. Baudinet-Robinet, “Beam-foil study of sulfur between 500 and 1200 Å,” J. Opt. Soc. Am. 68, 825–829 (1978).
[CrossRef]

B. I. Dynefors and I. Martinson, “Beam-foil studies of ionized sulfur,” Phys. Scr. 17, 123–129 (1978).
[CrossRef]

B. C. Fawcett, A. Ridgeley, and G. E. Bromage, “The spectrum Ar ix and extended spectral classifications in Ar v to Ar viii and Ar x,” Phys. Scr. 18, 315–322 (1978).
[CrossRef]

B. Edlén, “The transitions 3s–3p and 3p–3d and the ionization energy in the Na i isoelectronic sequence,” Phys. Scr. 17, 565–574 (1978).
[CrossRef]

1977 (8)

P. O. Zetterberg and C. E. Magnusson, “The spectrum and term system of P iv,” Phys. Scr. 15, 189–201 (1977).
[CrossRef]

D. J. Pegg and et al., “Radiative lifetimes of the low-lying levels of Na-like copper,” Phys. Rev. A 16, 2008–2010 (1977).
[CrossRef]

G. W. Erickson, “Energy levels of one-electron atoms,” J. Chem. Phys. Ref. Data 6, 831–869 (1977).
[CrossRef]

A. W. Weiss, “Hartree–Fock line strengths for the lithium, sodium, and copper isoelectronic sequences,” J. Quant. Spectrosc. Radiat. Transfer 18, 481–490 (1977).
[CrossRef]

H. G. Berry, “Beam-foil spectroscopy,” Rep. Prog. Phys. 40, 155–217 (1977).
[CrossRef]

P. Shorer, C. D. Lin, and W. R. Johnson, “Oscillator strengths for the magnesium isoelectronic sequence,” Phys. Rev. A 16, 1109–1116 (1977).
[CrossRef]

K. T. Cheng and W. R. Johnson, “Excitation energies and line strengths in the Mg isoelectronic sequence,” Phys. Rev. A 16, 263–272 (1977).
[CrossRef]

M. Aymar and E. Luc-Koenig, “Relativistic effects on transition probabilities in the Mg isoelectronic sequence,” Phys. Rev. A 15, 821–832 (1977).
[CrossRef]

1976 (8)

G. A. Victor, R. F. Stewart, and C. Laughlin, “Oscillator strengths in the Mg isoelectronic sequence,” Astrophys. J. Suppl. Ser. 31, 237–247 (1976).
[CrossRef]

C. F. Fischer, “Z-dependence of correlation effects and f values in the sodium isoelectronic sequence,” Can. J. Phys. 54, 1465–1481 (1976).
[CrossRef]

C. F. Fischer, “Oscillator strengths for the 2P–2D transitions of the Al i sequence,” Can. J. Phys. 54, 740–747 (1976).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Beam-foil spectroscopy of sulfur in the vacuum ultraviolet,” Can. J. Phys. 54, 805–815 (1976).
[CrossRef]

H. G. Berry and et al., “Mean-life measurements of ionized Ar and Cl excited states at grazing incidence wavelengths,” Phys. Rev. A 14, 1457–1462 (1976).
[CrossRef]

A. E. Livingston and et al., “Radiative lifetime measurements in Si ii–Si v,” J. Phys. B 9, 389–397 (1976).
[CrossRef]

A. E. Livingston and et al., “Radiative-lifetime measurements for Si iii, iv: S v, vi,” J. Opt. Soc. Am. 66, 1393–1395 (1976).
[CrossRef]

R. J. S. Crossley, L. J. Curtis, and C. F. Fischer, “Discrepancies between theoretical and experimental atomic oscillator strengths of the sodium isoelectronic sequence resonance transition,” Phys. Lett. 57A, 220–222 (1976).

1975 (3)

E. Biémont, “Systemic trends of Hartree–Fock oscillator strengths along the sodium isoelectronic sequence,” J. Quant. Spectrosc. Radiat. Transfer 15, 531–542 (1975).
[CrossRef]

D. R. Flower and H. Nussbaumer, “Relative intensities of solar emission lines of ions in the sodium isoelectronic sequence,” Astron. Astrophys. 42, 265–268 (1975).

A. E. Livingston and et al., “Beam-foil studies of phosphorus in the vacuum ultraviolet,” Phys. Scr. 12, 223–229 (1975).
[CrossRef]

1974 (5)

E. H. Pinnington and et al., “Mean-life measurements for some energy levels of O i–O vi,” Can. J. Phys. 52, 1961–1970 (1974).

S. N. Bhardwaj, H. G. Berry, and T. Mossberg, “Lifetimes of some highly-excited terms in Cl iv–Cl ix,” Phys. Scr. 9, 331–334 (1974).
[CrossRef]

O. Sinanoǧlu and D. R. Beck, “New theoretical transition probabilities for the Si i isoelectronic sequence,” Chem. Phys. Lett. 24, 20–21 (1974).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “homer: A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data,” Comput. Phys. Commun. 7, 95–113 (1974).
[CrossRef]

M. Aymar, “Determination théorique des durées de vie des niveaux 3s 3p3 dans la séquence isoéléctronique de Si i,” Physica 74, 205–213 (1974).
[CrossRef]

1973 (4)

L. Lundin and et al., “Lifetime measurements in Mg i–Mg iv,” Phys. Scr. 8, 274–278 (1973).
[CrossRef]

S. Bashkin and et al., “Beam-foil studies of radiative transitions and lifetimes in Cl iv–Cl x,” Phys. Scr. 8, 285–291 (1973).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Lifetime measurements in fluorine and silicon in the vacuum ultraviolet,” Can. J. Phys. 51, 848–851 (1973).
[CrossRef]

D. J. G. Irwin, A. E. Livingston, and J. A. Kernahan, “Beam-foil lifetimes in the third period elements silicon, sulfur, and argon,” Nucl. Instrum. Methods 110, 111–117 (1973).
[CrossRef]

1972 (2)

A. E. Livingston, D. J. G. Irwin, and E. H. Pinnington, “Lifetime measurements in Ar ii–Ar viii,” J. Opt. Soc. Am. 62, 1303–1308 (1972).
[CrossRef]

D. R. Beck and O. Sinanoǧlu, “Resonance transition probabilities for third-row atoms and ions including the important correlation effects,“ Phys. Rev. Lett. 28, 945–948 (1972).
[CrossRef]

1971 (4)

T. Andersen, J. R. Roberts, and G. Sørensen, “Mean-life measurements of excited electronic states in perturbed series of Al ii and Be i,” Phys. Scr. 4, 52–54 (1971).
[CrossRef]

E. H. Pinnington, B. Curnutte, and M. Dufay, “Argon spectrum between 500 and 1000 Å produced by beam-foil excitation,” J. Opt. Soc. Am. 61, 978–980 (1971).
[CrossRef]

L. J. Curtis, H. G. Berry, and J. Bromander, “A meanlife measurement of the 3d2D resonance doublet in Si ii by a technique which exactly accounts for cascading,” Phys. Lett. 34A, 169–170 (1971).

J. O. Ekberg, “Analyses of the Mg i-like spectra K viii, Ca ix, Sc x, and Ti xi,” Phys. Scr. 4, 101–109 (1971).
[CrossRef]

1970 (2)

H. G. Berry and et al., “Beam-foil spectrum of sulfur 600–4000 Å,” J. Opt. Soc. Am. 60, 335–344 (1970).
[CrossRef]

L. C. Northcliffe and R. F. Schilling, “Range and stopping power tables for heavy ions,” Nucl. Data Tables A 7, 233–463 (1970).
[CrossRef]

1969 (1)

1967 (2)

R. N. Zare, “Correlation effects in complex spectra, II, Transition probabilities for the magnesium isoelectronic sequence,” J. Chem. Phys. 47, 3561–3572 (1967).
[CrossRef]

A. W. Weiss, “Theoretical multiplet strengths for Mg i, Al ii, and Si iii,” J. Chem. Phys. 47, 3573–3578 (1967).
[CrossRef]

1965 (2)

R. J. S. Crossley and A. Dalgarno, “An expansion method for calculating atomic properties, V, Transition probabilities of M shell electrons,” Proc. Roy. Soc. A 286, 510–518 (1965).
[CrossRef]

J. D. Garcia and J. E. Mack, “Energy levels and line tables for one-electron atomic spectra,” J. Opt. Soc. Am. 55, 654–685 (1965).
[CrossRef]

Andersen, T.

T. Andersen, J. R. Roberts, and G. Sørensen, “Mean-life measurements of excited electronic states in perturbed series of Al ii and Be i,” Phys. Scr. 4, 52–54 (1971).
[CrossRef]

T. Andersen, K. A. Jessen, and G. Sørensen, “Beam-foil excitation studies of aluminum with a heavy-ion accelerator,” J. Opt. Soc. Am. 59, 1197–1201 (1969).
[CrossRef]

Andrä, H. J.

H. J. Andrä, “Fast-beam spectroscopy,” in Progress in Atomic Spectroscopy, W. Hanle and H. Kleinpoppen, eds. (Plenum, New York, 1979), pp. 829–953.
[CrossRef]

Aymar, M.

M. Aymar and E. Luc-Koenig, “Relativistic effects on transition probabilities in the Mg isoelectronic sequence,” Phys. Rev. A 15, 821–832 (1977).
[CrossRef]

M. Aymar, “Determination théorique des durées de vie des niveaux 3s 3p3 dans la séquence isoéléctronique de Si i,” Physica 74, 205–213 (1974).
[CrossRef]

Bashkin, S.

S. Bashkin and et al., “Lifetimes for excited levels in Si i–Si iv,” Phys. Scr. 21, 820–824 (1980).
[CrossRef]

S. Bashkin and et al., “Beam-foil studies of radiative transitions and lifetimes in Cl iv–Cl x,” Phys. Scr. 8, 285–291 (1973).
[CrossRef]

Batson, C. H.

H. G. Berry and C. H. Batson, “Spectroscopy of heavy ions using the beam-foil technique,” in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 367–375.
[CrossRef]

Baudinet-Robinet, Y.

Beck, D. R.

O. Sinanoǧlu and D. R. Beck, “New theoretical transition probabilities for the Si i isoelectronic sequence,” Chem. Phys. Lett. 24, 20–21 (1974).
[CrossRef]

D. R. Beck and O. Sinanoǧlu, “Resonance transition probabilities for third-row atoms and ions including the important correlation effects,“ Phys. Rev. Lett. 28, 945–948 (1972).
[CrossRef]

Berry, H. G.

H. G. Berry, “Beam-foil spectroscopy,” Rep. Prog. Phys. 40, 155–217 (1977).
[CrossRef]

H. G. Berry and et al., “Mean-life measurements of ionized Ar and Cl excited states at grazing incidence wavelengths,” Phys. Rev. A 14, 1457–1462 (1976).
[CrossRef]

S. N. Bhardwaj, H. G. Berry, and T. Mossberg, “Lifetimes of some highly-excited terms in Cl iv–Cl ix,” Phys. Scr. 9, 331–334 (1974).
[CrossRef]

L. J. Curtis, H. G. Berry, and J. Bromander, “A meanlife measurement of the 3d2D resonance doublet in Si ii by a technique which exactly accounts for cascading,” Phys. Lett. 34A, 169–170 (1971).

H. G. Berry and et al., “Beam-foil spectrum of sulfur 600–4000 Å,” J. Opt. Soc. Am. 60, 335–344 (1970).
[CrossRef]

H. G. Berry and C. H. Batson, “Spectroscopy of heavy ions using the beam-foil technique,” in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 367–375.
[CrossRef]

Bhardwaj, S. N.

S. N. Bhardwaj, H. G. Berry, and T. Mossberg, “Lifetimes of some highly-excited terms in Cl iv–Cl ix,” Phys. Scr. 9, 331–334 (1974).
[CrossRef]

Biémont, E.

E. Biémont, “Systemic trends of Hartree–Fock oscillator strengths along the sodium isoelectronic sequence,” J. Quant. Spectrosc. Radiat. Transfer 15, 531–542 (1975).
[CrossRef]

Bromage, G. E.

B. C. Fawcett, A. Ridgeley, and G. E. Bromage, “The spectrum Ar ix and extended spectral classifications in Ar v to Ar viii and Ar x,” Phys. Scr. 18, 315–322 (1978).
[CrossRef]

Bromander, J.

L. J. Curtis, H. G. Berry, and J. Bromander, “A meanlife measurement of the 3d2D resonance doublet in Si ii by a technique which exactly accounts for cascading,” Phys. Lett. 34A, 169–170 (1971).

Cheng, K. T.

Y.-K. Kim and K. T. Cheng, “Transition probabilities for the resonance transitions of Na-like ions,” J. Opt. Soc. Am. 68, 836–842 (1978).
[CrossRef]

K. T. Cheng and W. R. Johnson, “Excitation energies and line strengths in the Mg isoelectronic sequence,” Phys. Rev. A 16, 263–272 (1977).
[CrossRef]

Cocke, C. L.

C. L. Cocke, “Beam-foil spectroscopy,” in Methods of Experimental Physics, Vol. 13, Spectroscopy, Part B (Academic, New York, 1976), pp. 213–272.
[CrossRef]

Crossley, R. J. S.

R. J. S. Crossley, L. J. Curtis, and C. F. Fischer, “Discrepancies between theoretical and experimental atomic oscillator strengths of the sodium isoelectronic sequence resonance transition,” Phys. Lett. 57A, 220–222 (1976).

R. J. S. Crossley and A. Dalgarno, “An expansion method for calculating atomic properties, V, Transition probabilities of M shell electrons,” Proc. Roy. Soc. A 286, 510–518 (1965).
[CrossRef]

Curnutte, B.

Curtis, L. J.

L. J. Curtis, “Dipole polarisabilities for single valence electron ions,” Phys. Scr. 21, 162–164 (1980).
[CrossRef]

R. J. S. Crossley, L. J. Curtis, and C. F. Fischer, “Discrepancies between theoretical and experimental atomic oscillator strengths of the sodium isoelectronic sequence resonance transition,” Phys. Lett. 57A, 220–222 (1976).

L. J. Curtis, H. G. Berry, and J. Bromander, “A meanlife measurement of the 3d2D resonance doublet in Si ii by a technique which exactly accounts for cascading,” Phys. Lett. 34A, 169–170 (1971).

L. J. Curtis, “Lifetime measurements,” in Beam-Foil Spectroscopy, Topics in Current Physics, Vol. 1, S. Bashkin, ed. (Springer-Verlag, New York, 1976), pp. 63–109.
[CrossRef]

Dalgarno, A.

R. J. S. Crossley and A. Dalgarno, “An expansion method for calculating atomic properties, V, Transition probabilities of M shell electrons,” Proc. Roy. Soc. A 286, 510–518 (1965).
[CrossRef]

Dufay, M.

Dumont, P. D.

Dynefors, B. I.

B. I. Dynefors and I. Martinson, “Beam-foil studies of ionized sulfur,” Phys. Scr. 17, 123–129 (1978).
[CrossRef]

Edlén, B.

B. Edlén, “The transitions 3s–3p and 3p–3d and the ionization energy in the Na i isoelectronic sequence,” Phys. Scr. 17, 565–574 (1978).
[CrossRef]

B. Edlén, “Atomic spectra,” in Handbuch der Physik, Vol. 27 (Springer-Verlag, New York, 1964), pp. 80–220.

Ekberg, J. O.

J. O. Ekberg, “Analyses of the Mg i-like spectra K viii, Ca ix, Sc x, and Ti xi,” Phys. Scr. 4, 101–109 (1971).
[CrossRef]

Erickson, G. W.

G. W. Erickson, “Energy levels of one-electron atoms,” J. Chem. Phys. Ref. Data 6, 831–869 (1977).
[CrossRef]

Fawcett, B. C.

B. C. Fawcett, A. Ridgeley, and G. E. Bromage, “The spectrum Ar ix and extended spectral classifications in Ar v to Ar viii and Ar x,” Phys. Scr. 18, 315–322 (1978).
[CrossRef]

Fischer, C. F.

C. F. Fischer, “Theoretical energy levels of 3F0 Rydberg series for Mg i, Al ii, and Si iii,” Phys. Scr. 21, 466–471 (1980).
[CrossRef]

C. F. Fischer, “Oscillator strengths for some D–F transitions in the Mg i sequence,” J. Opt. Soc. Am. 69, 118–125 (1979).
[CrossRef]

C. F. Fischer, “Z-dependence of correlation effects and f values in the sodium isoelectronic sequence,” Can. J. Phys. 54, 1465–1481 (1976).
[CrossRef]

C. F. Fischer, “Oscillator strengths for the 2P–2D transitions of the Al i sequence,” Can. J. Phys. 54, 740–747 (1976).
[CrossRef]

R. J. S. Crossley, L. J. Curtis, and C. F. Fischer, “Discrepancies between theoretical and experimental atomic oscillator strengths of the sodium isoelectronic sequence resonance transition,” Phys. Lett. 57A, 220–222 (1976).

Flower, D. R.

D. R. Flower and H. Nussbaumer, “Relative intensities of solar emission lines of ions in the sodium isoelectronic sequence,” Astron. Astrophys. 42, 265–268 (1975).

Garcia, J. D.

Garnir, H. P.

Hibbert, A.

A. Hibbert, “Atomic structure theory,” in Progress in Atomic Spectroscopy, W. Hanle and H. Kleinpoppen, eds. (Plenum, New York, 1979), pp. 1–69.

Irwin, D. J. G.

D. J. G. Irwin and A. E. Livingston, “Beam-foil spectroscopy of sulfur in the vacuum ultraviolet,” Can. J. Phys. 54, 805–815 (1976).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “homer: A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data,” Comput. Phys. Commun. 7, 95–113 (1974).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Lifetime measurements in fluorine and silicon in the vacuum ultraviolet,” Can. J. Phys. 51, 848–851 (1973).
[CrossRef]

D. J. G. Irwin, A. E. Livingston, and J. A. Kernahan, “Beam-foil lifetimes in the third period elements silicon, sulfur, and argon,” Nucl. Instrum. Methods 110, 111–117 (1973).
[CrossRef]

A. E. Livingston, D. J. G. Irwin, and E. H. Pinnington, “Lifetime measurements in Ar ii–Ar viii,” J. Opt. Soc. Am. 62, 1303–1308 (1972).
[CrossRef]

Jessen, K. A.

Johnson, W. R.

P. Shorer, C. D. Lin, and W. R. Johnson, “Oscillator strengths for the magnesium isoelectronic sequence,” Phys. Rev. A 16, 1109–1116 (1977).
[CrossRef]

K. T. Cheng and W. R. Johnson, “Excitation energies and line strengths in the Mg isoelectronic sequence,” Phys. Rev. A 16, 263–272 (1977).
[CrossRef]

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. Government Printing Office, Washington, D.C., 1973).

Kernahan, J. A.

J. A. Kernahan and et al., “Radiative lifetime measurements in Al ii–vii,” Phys. Scr. 19, 267–270 (1979).
[CrossRef]

D. J. G. Irwin, A. E. Livingston, and J. A. Kernahan, “Beam-foil lifetimes in the third period elements silicon, sulfur, and argon,” Nucl. Instrum. Methods 110, 111–117 (1973).
[CrossRef]

Kim, Y.-K.

Laughlin, C.

G. A. Victor, R. F. Stewart, and C. Laughlin, “Oscillator strengths in the Mg isoelectronic sequence,” Astrophys. J. Suppl. Ser. 31, 237–247 (1976).
[CrossRef]

Lin, C. D.

P. Shorer, C. D. Lin, and W. R. Johnson, “Oscillator strengths for the magnesium isoelectronic sequence,” Phys. Rev. A 16, 1109–1116 (1977).
[CrossRef]

Livingston, A. E.

A. E. Livingston and et al., “Radiative lifetime measurements in Si ii–Si v,” J. Phys. B 9, 389–397 (1976).
[CrossRef]

A. E. Livingston and et al., “Radiative-lifetime measurements for Si iii, iv: S v, vi,” J. Opt. Soc. Am. 66, 1393–1395 (1976).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Beam-foil spectroscopy of sulfur in the vacuum ultraviolet,” Can. J. Phys. 54, 805–815 (1976).
[CrossRef]

A. E. Livingston and et al., “Beam-foil studies of phosphorus in the vacuum ultraviolet,” Phys. Scr. 12, 223–229 (1975).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “homer: A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data,” Comput. Phys. Commun. 7, 95–113 (1974).
[CrossRef]

D. J. G. Irwin, A. E. Livingston, and J. A. Kernahan, “Beam-foil lifetimes in the third period elements silicon, sulfur, and argon,” Nucl. Instrum. Methods 110, 111–117 (1973).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Lifetime measurements in fluorine and silicon in the vacuum ultraviolet,” Can. J. Phys. 51, 848–851 (1973).
[CrossRef]

A. E. Livingston, D. J. G. Irwin, and E. H. Pinnington, “Lifetime measurements in Ar ii–Ar viii,” J. Opt. Soc. Am. 62, 1303–1308 (1972).
[CrossRef]

A. E. Livingston, “Beam-foil investigations of atomic oscillator strengths,” Ph.D. thesis (University of Alberta, 1974, unpublished).

A. E. Livingston and et al., “Radiative-lifetime measurements for sulfur and silicon transitions observed in interstellar absorption spectra,” Astrophys. Lett.17, 23–25 (1976); in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 339–346.
[CrossRef]

Luc-Koenig, E.

M. Aymar and E. Luc-Koenig, “Relativistic effects on transition probabilities in the Mg isoelectronic sequence,” Phys. Rev. A 15, 821–832 (1977).
[CrossRef]

Lundin, L.

L. Lundin and et al., “Lifetime measurements in Mg i–Mg iv,” Phys. Scr. 8, 274–278 (1973).
[CrossRef]

Mack, J. E.

Magnusson, C. E.

P. O. Zetterberg and C. E. Magnusson, “The spectrum and term system of P iv,” Phys. Scr. 15, 189–201 (1977).
[CrossRef]

Martinson, I.

B. I. Dynefors and I. Martinson, “Beam-foil studies of ionized sulfur,” Phys. Scr. 17, 123–129 (1978).
[CrossRef]

Mossberg, T.

S. N. Bhardwaj, H. G. Berry, and T. Mossberg, “Lifetimes of some highly-excited terms in Cl iv–Cl ix,” Phys. Scr. 9, 331–334 (1974).
[CrossRef]

Northcliffe, L. C.

L. C. Northcliffe and R. F. Schilling, “Range and stopping power tables for heavy ions,” Nucl. Data Tables A 7, 233–463 (1970).
[CrossRef]

Nussbaumer, H.

D. R. Flower and H. Nussbaumer, “Relative intensities of solar emission lines of ions in the sodium isoelectronic sequence,” Astron. Astrophys. 42, 265–268 (1975).

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. Government Printing Office, Washington, D.C., 1973).

Pegg, D. J.

D. J. Pegg and et al., “Radiative lifetimes of the low-lying levels of Na-like copper,” Phys. Rev. A 16, 2008–2010 (1977).
[CrossRef]

Pinnington, E. H.

E. H. Pinnington and et al., “Beam-foil lifetime measurements using andc analysis for the resonance doublet in Ar viii, Kr viii, and Xe viii,” Phys. Scr. 20, 151–155 (1979).
[CrossRef]

E. H. Pinnington and et al., “Mean-life measurements for some energy levels of O i–O vi,” Can. J. Phys. 52, 1961–1970 (1974).

A. E. Livingston, D. J. G. Irwin, and E. H. Pinnington, “Lifetime measurements in Ar ii–Ar viii,” J. Opt. Soc. Am. 62, 1303–1308 (1972).
[CrossRef]

E. H. Pinnington, B. Curnutte, and M. Dufay, “Argon spectrum between 500 and 1000 Å produced by beam-foil excitation,” J. Opt. Soc. Am. 61, 978–980 (1971).
[CrossRef]

Ridgeley, A.

B. C. Fawcett, A. Ridgeley, and G. E. Bromage, “The spectrum Ar ix and extended spectral classifications in Ar v to Ar viii and Ar x,” Phys. Scr. 18, 315–322 (1978).
[CrossRef]

Roberts, J. R.

T. Andersen, J. R. Roberts, and G. Sørensen, “Mean-life measurements of excited electronic states in perturbed series of Al ii and Be i,” Phys. Scr. 4, 52–54 (1971).
[CrossRef]

Schilling, R. F.

L. C. Northcliffe and R. F. Schilling, “Range and stopping power tables for heavy ions,” Nucl. Data Tables A 7, 233–463 (1970).
[CrossRef]

Shorer, P.

P. Shorer, C. D. Lin, and W. R. Johnson, “Oscillator strengths for the magnesium isoelectronic sequence,” Phys. Rev. A 16, 1109–1116 (1977).
[CrossRef]

Sinanoglu, O.

O. Sinanoǧlu and D. R. Beck, “New theoretical transition probabilities for the Si i isoelectronic sequence,” Chem. Phys. Lett. 24, 20–21 (1974).
[CrossRef]

D. R. Beck and O. Sinanoǧlu, “Resonance transition probabilities for third-row atoms and ions including the important correlation effects,“ Phys. Rev. Lett. 28, 945–948 (1972).
[CrossRef]

Sørensen, G.

T. Andersen, J. R. Roberts, and G. Sørensen, “Mean-life measurements of excited electronic states in perturbed series of Al ii and Be i,” Phys. Scr. 4, 52–54 (1971).
[CrossRef]

T. Andersen, K. A. Jessen, and G. Sørensen, “Beam-foil excitation studies of aluminum with a heavy-ion accelerator,” J. Opt. Soc. Am. 59, 1197–1201 (1969).
[CrossRef]

Stewart, R. F.

G. A. Victor, R. F. Stewart, and C. Laughlin, “Oscillator strengths in the Mg isoelectronic sequence,” Astrophys. J. Suppl. Ser. 31, 237–247 (1976).
[CrossRef]

Victor, G. A.

G. A. Victor, R. F. Stewart, and C. Laughlin, “Oscillator strengths in the Mg isoelectronic sequence,” Astrophys. J. Suppl. Ser. 31, 237–247 (1976).
[CrossRef]

Weiss, A. W.

A. W. Weiss, “Hartree–Fock line strengths for the lithium, sodium, and copper isoelectronic sequences,” J. Quant. Spectrosc. Radiat. Transfer 18, 481–490 (1977).
[CrossRef]

A. W. Weiss, “Theoretical multiplet strengths for Mg i, Al ii, and Si iii,” J. Chem. Phys. 47, 3573–3578 (1967).
[CrossRef]

A. W. Weiss, “Transition probabilities for ionized atoms,” in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 51–68.
[CrossRef]

Wiese, W. L.

W. L. Wiese, “Atomic transition probabilities and lifetimes,” in Progress in Atomic Spectroscopy, W. Hanle and H. Kleinpoppen, eds. (Plenum, New York, 1979), pp. 1101–1155.
[CrossRef]

Zare, R. N.

R. N. Zare, “Correlation effects in complex spectra, II, Transition probabilities for the magnesium isoelectronic sequence,” J. Chem. Phys. 47, 3561–3572 (1967).
[CrossRef]

Zetterberg, P. O.

P. O. Zetterberg and C. E. Magnusson, “The spectrum and term system of P iv,” Phys. Scr. 15, 189–201 (1977).
[CrossRef]

Astron. Astrophys. (1)

D. R. Flower and H. Nussbaumer, “Relative intensities of solar emission lines of ions in the sodium isoelectronic sequence,” Astron. Astrophys. 42, 265–268 (1975).

Astrophys. J. Suppl. Ser. (1)

G. A. Victor, R. F. Stewart, and C. Laughlin, “Oscillator strengths in the Mg isoelectronic sequence,” Astrophys. J. Suppl. Ser. 31, 237–247 (1976).
[CrossRef]

Can. J. Phys. (5)

C. F. Fischer, “Z-dependence of correlation effects and f values in the sodium isoelectronic sequence,” Can. J. Phys. 54, 1465–1481 (1976).
[CrossRef]

C. F. Fischer, “Oscillator strengths for the 2P–2D transitions of the Al i sequence,” Can. J. Phys. 54, 740–747 (1976).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Lifetime measurements in fluorine and silicon in the vacuum ultraviolet,” Can. J. Phys. 51, 848–851 (1973).
[CrossRef]

D. J. G. Irwin and A. E. Livingston, “Beam-foil spectroscopy of sulfur in the vacuum ultraviolet,” Can. J. Phys. 54, 805–815 (1976).
[CrossRef]

E. H. Pinnington and et al., “Mean-life measurements for some energy levels of O i–O vi,” Can. J. Phys. 52, 1961–1970 (1974).

Chem. Phys. Lett. (1)

O. Sinanoǧlu and D. R. Beck, “New theoretical transition probabilities for the Si i isoelectronic sequence,” Chem. Phys. Lett. 24, 20–21 (1974).
[CrossRef]

Comput. Phys. Commun. (1)

D. J. G. Irwin and A. E. Livingston, “homer: A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data,” Comput. Phys. Commun. 7, 95–113 (1974).
[CrossRef]

J. Chem. Phys. (2)

R. N. Zare, “Correlation effects in complex spectra, II, Transition probabilities for the magnesium isoelectronic sequence,” J. Chem. Phys. 47, 3561–3572 (1967).
[CrossRef]

A. W. Weiss, “Theoretical multiplet strengths for Mg i, Al ii, and Si iii,” J. Chem. Phys. 47, 3573–3578 (1967).
[CrossRef]

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

G. W. Erickson, “Energy levels of one-electron atoms,” J. Chem. Phys. Ref. Data 6, 831–869 (1977).
[CrossRef]

J. Opt. Soc. Am. (9)

J. Phys. B (1)

A. E. Livingston and et al., “Radiative lifetime measurements in Si ii–Si v,” J. Phys. B 9, 389–397 (1976).
[CrossRef]

J. Quant. Spectrosc. Radiat. Transfer (2)

A. W. Weiss, “Hartree–Fock line strengths for the lithium, sodium, and copper isoelectronic sequences,” J. Quant. Spectrosc. Radiat. Transfer 18, 481–490 (1977).
[CrossRef]

E. Biémont, “Systemic trends of Hartree–Fock oscillator strengths along the sodium isoelectronic sequence,” J. Quant. Spectrosc. Radiat. Transfer 15, 531–542 (1975).
[CrossRef]

Nucl. Data Tables A (1)

L. C. Northcliffe and R. F. Schilling, “Range and stopping power tables for heavy ions,” Nucl. Data Tables A 7, 233–463 (1970).
[CrossRef]

Nucl. Instrum. Methods (1)

D. J. G. Irwin, A. E. Livingston, and J. A. Kernahan, “Beam-foil lifetimes in the third period elements silicon, sulfur, and argon,” Nucl. Instrum. Methods 110, 111–117 (1973).
[CrossRef]

Phys. Lett. (2)

L. J. Curtis, H. G. Berry, and J. Bromander, “A meanlife measurement of the 3d2D resonance doublet in Si ii by a technique which exactly accounts for cascading,” Phys. Lett. 34A, 169–170 (1971).

R. J. S. Crossley, L. J. Curtis, and C. F. Fischer, “Discrepancies between theoretical and experimental atomic oscillator strengths of the sodium isoelectronic sequence resonance transition,” Phys. Lett. 57A, 220–222 (1976).

Phys. Rev. A (5)

D. J. Pegg and et al., “Radiative lifetimes of the low-lying levels of Na-like copper,” Phys. Rev. A 16, 2008–2010 (1977).
[CrossRef]

H. G. Berry and et al., “Mean-life measurements of ionized Ar and Cl excited states at grazing incidence wavelengths,” Phys. Rev. A 14, 1457–1462 (1976).
[CrossRef]

M. Aymar and E. Luc-Koenig, “Relativistic effects on transition probabilities in the Mg isoelectronic sequence,” Phys. Rev. A 15, 821–832 (1977).
[CrossRef]

P. Shorer, C. D. Lin, and W. R. Johnson, “Oscillator strengths for the magnesium isoelectronic sequence,” Phys. Rev. A 16, 1109–1116 (1977).
[CrossRef]

K. T. Cheng and W. R. Johnson, “Excitation energies and line strengths in the Mg isoelectronic sequence,” Phys. Rev. A 16, 263–272 (1977).
[CrossRef]

Phys. Rev. Lett. (1)

D. R. Beck and O. Sinanoǧlu, “Resonance transition probabilities for third-row atoms and ions including the important correlation effects,“ Phys. Rev. Lett. 28, 945–948 (1972).
[CrossRef]

Phys. Scr. (15)

C. F. Fischer, “Theoretical energy levels of 3F0 Rydberg series for Mg i, Al ii, and Si iii,” Phys. Scr. 21, 466–471 (1980).
[CrossRef]

S. Bashkin and et al., “Lifetimes for excited levels in Si i–Si iv,” Phys. Scr. 21, 820–824 (1980).
[CrossRef]

L. Lundin and et al., “Lifetime measurements in Mg i–Mg iv,” Phys. Scr. 8, 274–278 (1973).
[CrossRef]

J. A. Kernahan and et al., “Radiative lifetime measurements in Al ii–vii,” Phys. Scr. 19, 267–270 (1979).
[CrossRef]

T. Andersen, J. R. Roberts, and G. Sørensen, “Mean-life measurements of excited electronic states in perturbed series of Al ii and Be i,” Phys. Scr. 4, 52–54 (1971).
[CrossRef]

S. N. Bhardwaj, H. G. Berry, and T. Mossberg, “Lifetimes of some highly-excited terms in Cl iv–Cl ix,” Phys. Scr. 9, 331–334 (1974).
[CrossRef]

S. Bashkin and et al., “Beam-foil studies of radiative transitions and lifetimes in Cl iv–Cl x,” Phys. Scr. 8, 285–291 (1973).
[CrossRef]

E. H. Pinnington and et al., “Beam-foil lifetime measurements using andc analysis for the resonance doublet in Ar viii, Kr viii, and Xe viii,” Phys. Scr. 20, 151–155 (1979).
[CrossRef]

A. E. Livingston and et al., “Beam-foil studies of phosphorus in the vacuum ultraviolet,” Phys. Scr. 12, 223–229 (1975).
[CrossRef]

B. I. Dynefors and I. Martinson, “Beam-foil studies of ionized sulfur,” Phys. Scr. 17, 123–129 (1978).
[CrossRef]

B. Edlén, “The transitions 3s–3p and 3p–3d and the ionization energy in the Na i isoelectronic sequence,” Phys. Scr. 17, 565–574 (1978).
[CrossRef]

L. J. Curtis, “Dipole polarisabilities for single valence electron ions,” Phys. Scr. 21, 162–164 (1980).
[CrossRef]

P. O. Zetterberg and C. E. Magnusson, “The spectrum and term system of P iv,” Phys. Scr. 15, 189–201 (1977).
[CrossRef]

J. O. Ekberg, “Analyses of the Mg i-like spectra K viii, Ca ix, Sc x, and Ti xi,” Phys. Scr. 4, 101–109 (1971).
[CrossRef]

B. C. Fawcett, A. Ridgeley, and G. E. Bromage, “The spectrum Ar ix and extended spectral classifications in Ar v to Ar viii and Ar x,” Phys. Scr. 18, 315–322 (1978).
[CrossRef]

Physica (1)

M. Aymar, “Determination théorique des durées de vie des niveaux 3s 3p3 dans la séquence isoéléctronique de Si i,” Physica 74, 205–213 (1974).
[CrossRef]

Proc. Roy. Soc. A (1)

R. J. S. Crossley and A. Dalgarno, “An expansion method for calculating atomic properties, V, Transition probabilities of M shell electrons,” Proc. Roy. Soc. A 286, 510–518 (1965).
[CrossRef]

Rep. Prog. Phys. (1)

H. G. Berry, “Beam-foil spectroscopy,” Rep. Prog. Phys. 40, 155–217 (1977).
[CrossRef]

Other (11)

C. L. Cocke, “Beam-foil spectroscopy,” in Methods of Experimental Physics, Vol. 13, Spectroscopy, Part B (Academic, New York, 1976), pp. 213–272.
[CrossRef]

L. J. Curtis, “Lifetime measurements,” in Beam-Foil Spectroscopy, Topics in Current Physics, Vol. 1, S. Bashkin, ed. (Springer-Verlag, New York, 1976), pp. 63–109.
[CrossRef]

H. J. Andrä, “Fast-beam spectroscopy,” in Progress in Atomic Spectroscopy, W. Hanle and H. Kleinpoppen, eds. (Plenum, New York, 1979), pp. 829–953.
[CrossRef]

A. W. Weiss, “Transition probabilities for ionized atoms,” in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 51–68.
[CrossRef]

A. Hibbert, “Atomic structure theory,” in Progress in Atomic Spectroscopy, W. Hanle and H. Kleinpoppen, eds. (Plenum, New York, 1979), pp. 1–69.

W. L. Wiese, “Atomic transition probabilities and lifetimes,” in Progress in Atomic Spectroscopy, W. Hanle and H. Kleinpoppen, eds. (Plenum, New York, 1979), pp. 1101–1155.
[CrossRef]

H. G. Berry and C. H. Batson, “Spectroscopy of heavy ions using the beam-foil technique,” in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 367–375.
[CrossRef]

A. E. Livingston and et al., “Radiative-lifetime measurements for sulfur and silicon transitions observed in interstellar absorption spectra,” Astrophys. Lett.17, 23–25 (1976); in Beam-Foil Spectroscopy, Vol. 1, I. A. Sellin and D. J. Pegg, eds. (Plenum, New York, 1976), pp. 339–346.
[CrossRef]

A. E. Livingston, “Beam-foil investigations of atomic oscillator strengths,” Ph.D. thesis (University of Alberta, 1974, unpublished).

B. Edlén, “Atomic spectra,” in Handbuch der Physik, Vol. 27 (Springer-Verlag, New York, 1964), pp. 80–220.

R. L. Kelly and L. J. Palumbo, “Atomic and ionic emission lines below 2000 Angstroms—hydrogen through krypton,” NRL Report 7599 (U.S. Government Printing Office, Washington, D.C., 1973).

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Figures (4)

Fig. 1
Fig. 1

Spectrum of argon produced by foil excitation of 1.8-MeV Ar+ ions.

Fig. 2
Fig. 2

Two sections of the spectrum of argon produced by foil excitation of 1.3-MeV Ar+ ions. The FWHM linewidths of 1 Å enable resolved fine structures to be seen for several multiplets.

Fig. 3
Fig. 3

The f-value dependence on 1/Z for the 3s3p 1P0–3s3d 1D transition along the Mg i isoelectronic sequence. Sources: for the beam-foil, circles: Al ii, Ref. 21; S v, Ref. 33; Ar vii, this work; and for the theoretical: solid curve, semiempirical model potential, Ref. 15; dashed curve, Z-expansion, Ref. 57; squares, linear combination of Hartree–Fock–Slater wave functions, Ref. 58; triangles, superposition of configurations, Ref. 59.

Fig. 4
Fig. 4

The f-value dependence on 1/Z for the 3s3d 3D–3p3d 3F0 transition along the Mg i isoelectronic sequence. Sources: for the beam-foil, circles, Al ii, Refs. 22, 23; P iv, Ref. 30; S v, Refs. 31, 63; Cl vi, Ref. 37; Ar vii, this work; and for the theoretical: solid curve, multiconfiguration Hartree–Fock, Ref. 4; dashed curve, Z-expansion, Ref. 57.

Tables (1)

Tables Icon

Table 1 Excited-State Lifetimes in Ar v-Ar viii

Equations (1)

Equations on this page are rendered with MathJax. Learn more.

Δ p = A ( Z ) P ( n , l ) [ 1 + k ( Z ) q ( n , l ) ] ,