Abstract

The beam-foil spectroscopy method has been used to measure the first radiative lifetimes of several levels in Ti IV–VII from transitions observed between 400 and 800 Å. In Ti IV our lifetime results are in agreement with theoretical values. No theoretical values are available for comparison in Ti V, Ti VI, and Ti VII.

© 1981 Optical Society of America

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  1. A. J. Willis, ed., The First Year of International Ultraviolet Explorer (University College, London, 1979).
  2. B. Battrick and J. More, The Second European International Ultraviolet Explorer, ESA-SP 157 (ESTEC, Noordwijk, The Netherlands, 1980).
  3. J. W. Swensson and B. Edlén, "The spectrum of three times ionized titanium, Ti IV," Phys. Scr. 9, 335–337 (1974).
  4. L. A. Svensson, "The spectrum of four times ionized titanium, Ti V," Phys. Scr. 13, 235–239 (1976).
  5. L. A. Svensson, "The transitions 3s 23pk-3s3pk+1 of Ti VI and Ti VII," Phys. Scr. 4, 111–112 (1971).
  6. J. R. Roberts, T. Andersen, and G. Sørensen, "Determination of atomic lifetimes and absolute oscillator strengths for neutral and ionized titanium," Astrophys. J. 181, 567–586 (1973).
  7. Y. Baudinet-Robinet et al., "Lifetime measurements in Ti III, IV, and V using beam-foil spectroscopy," J. Opt. Soc. Am. 70, 464–466 (1980).
  8. P. D. Dumont et al., "The University of Liège beam-foil facility," Bull. Soc. R. Sci. Liège 9–10, 284–291 (1978).
  9. D. J. G. Irwin and A. E. Livingston, "A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data," Comput. Phys. Comm.. 7, 95 (1974).
  10. E. Biémont, "Etude le long des séquences isoélectroniques du comportement des durées de vie de niveaux peu excités d'alcalins," Physica 85C, 393–402 (1977).
  11. A. Lindgrd and S. E. Nielsen, "Transition probabilities for the alkali isoelectronic sequences Li I, Na I, K I, Rb I, Cs I, Fr I," At. Data Nucl. Data Tables 19, 533–635 (1977).
  12. L. J. Curtis, H. G. Berry, and J. Bromander, "A meanlife measurement of the 3d 2D resonance doublet in Si III by a technique which exactly accounts for cascading," Phys. Lett. 34A, 169–170 (1971).

1980

1978

P. D. Dumont et al., "The University of Liège beam-foil facility," Bull. Soc. R. Sci. Liège 9–10, 284–291 (1978).

1977

E. Biémont, "Etude le long des séquences isoélectroniques du comportement des durées de vie de niveaux peu excités d'alcalins," Physica 85C, 393–402 (1977).

A. Lindgrd and S. E. Nielsen, "Transition probabilities for the alkali isoelectronic sequences Li I, Na I, K I, Rb I, Cs I, Fr I," At. Data Nucl. Data Tables 19, 533–635 (1977).

1976

L. A. Svensson, "The spectrum of four times ionized titanium, Ti V," Phys. Scr. 13, 235–239 (1976).

1974

J. W. Swensson and B. Edlén, "The spectrum of three times ionized titanium, Ti IV," Phys. Scr. 9, 335–337 (1974).

D. J. G. Irwin and A. E. Livingston, "A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data," Comput. Phys. Comm.. 7, 95 (1974).

1973

J. R. Roberts, T. Andersen, and G. Sørensen, "Determination of atomic lifetimes and absolute oscillator strengths for neutral and ionized titanium," Astrophys. J. 181, 567–586 (1973).

1971

L. A. Svensson, "The transitions 3s 23pk-3s3pk+1 of Ti VI and Ti VII," Phys. Scr. 4, 111–112 (1971).

L. J. Curtis, H. G. Berry, and J. Bromander, "A meanlife measurement of the 3d 2D resonance doublet in Si III by a technique which exactly accounts for cascading," Phys. Lett. 34A, 169–170 (1971).

Andersen, T.

J. R. Roberts, T. Andersen, and G. Sørensen, "Determination of atomic lifetimes and absolute oscillator strengths for neutral and ionized titanium," Astrophys. J. 181, 567–586 (1973).

Battrick, B.

B. Battrick and J. More, The Second European International Ultraviolet Explorer, ESA-SP 157 (ESTEC, Noordwijk, The Netherlands, 1980).

Baudinet-Robinet, Y.

Berry, H. G.

L. J. Curtis, H. G. Berry, and J. Bromander, "A meanlife measurement of the 3d 2D resonance doublet in Si III by a technique which exactly accounts for cascading," Phys. Lett. 34A, 169–170 (1971).

Biémont, E.

E. Biémont, "Etude le long des séquences isoélectroniques du comportement des durées de vie de niveaux peu excités d'alcalins," Physica 85C, 393–402 (1977).

Bromander, J.

L. J. Curtis, H. G. Berry, and J. Bromander, "A meanlife measurement of the 3d 2D resonance doublet in Si III by a technique which exactly accounts for cascading," Phys. Lett. 34A, 169–170 (1971).

Curtis, L. J.

L. J. Curtis, H. G. Berry, and J. Bromander, "A meanlife measurement of the 3d 2D resonance doublet in Si III by a technique which exactly accounts for cascading," Phys. Lett. 34A, 169–170 (1971).

Dumont, P. D.

P. D. Dumont et al., "The University of Liège beam-foil facility," Bull. Soc. R. Sci. Liège 9–10, 284–291 (1978).

Edlén, B.

J. W. Swensson and B. Edlén, "The spectrum of three times ionized titanium, Ti IV," Phys. Scr. 9, 335–337 (1974).

Irwin, D. J. G.

D. J. G. Irwin and A. E. Livingston, "A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data," Comput. Phys. Comm.. 7, 95 (1974).

Lindgärd, A.

A. Lindgrd and S. E. Nielsen, "Transition probabilities for the alkali isoelectronic sequences Li I, Na I, K I, Rb I, Cs I, Fr I," At. Data Nucl. Data Tables 19, 533–635 (1977).

Livingston, A. E.

D. J. G. Irwin and A. E. Livingston, "A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data," Comput. Phys. Comm.. 7, 95 (1974).

More, J.

B. Battrick and J. More, The Second European International Ultraviolet Explorer, ESA-SP 157 (ESTEC, Noordwijk, The Netherlands, 1980).

Nielsen, S. E.

A. Lindgrd and S. E. Nielsen, "Transition probabilities for the alkali isoelectronic sequences Li I, Na I, K I, Rb I, Cs I, Fr I," At. Data Nucl. Data Tables 19, 533–635 (1977).

Roberts, J. R.

J. R. Roberts, T. Andersen, and G. Sørensen, "Determination of atomic lifetimes and absolute oscillator strengths for neutral and ionized titanium," Astrophys. J. 181, 567–586 (1973).

Sørensen, G.

J. R. Roberts, T. Andersen, and G. Sørensen, "Determination of atomic lifetimes and absolute oscillator strengths for neutral and ionized titanium," Astrophys. J. 181, 567–586 (1973).

Svensson, L. A.

L. A. Svensson, "The spectrum of four times ionized titanium, Ti V," Phys. Scr. 13, 235–239 (1976).

L. A. Svensson, "The transitions 3s 23pk-3s3pk+1 of Ti VI and Ti VII," Phys. Scr. 4, 111–112 (1971).

Swensson, J. W.

J. W. Swensson and B. Edlén, "The spectrum of three times ionized titanium, Ti IV," Phys. Scr. 9, 335–337 (1974).

Astrophys. J.

J. R. Roberts, T. Andersen, and G. Sørensen, "Determination of atomic lifetimes and absolute oscillator strengths for neutral and ionized titanium," Astrophys. J. 181, 567–586 (1973).

At. Data Nucl. Data Tables

A. Lindgrd and S. E. Nielsen, "Transition probabilities for the alkali isoelectronic sequences Li I, Na I, K I, Rb I, Cs I, Fr I," At. Data Nucl. Data Tables 19, 533–635 (1977).

Bull. Soc. R. Sci. Liège

P. D. Dumont et al., "The University of Liège beam-foil facility," Bull. Soc. R. Sci. Liège 9–10, 284–291 (1978).

Comput. Phys. Comm..

D. J. G. Irwin and A. E. Livingston, "A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay data," Comput. Phys. Comm.. 7, 95 (1974).

J. Opt. Soc. Am.

Phys. Lett.

L. J. Curtis, H. G. Berry, and J. Bromander, "A meanlife measurement of the 3d 2D resonance doublet in Si III by a technique which exactly accounts for cascading," Phys. Lett. 34A, 169–170 (1971).

Phys. Scr.

J. W. Swensson and B. Edlén, "The spectrum of three times ionized titanium, Ti IV," Phys. Scr. 9, 335–337 (1974).

L. A. Svensson, "The spectrum of four times ionized titanium, Ti V," Phys. Scr. 13, 235–239 (1976).

L. A. Svensson, "The transitions 3s 23pk-3s3pk+1 of Ti VI and Ti VII," Phys. Scr. 4, 111–112 (1971).

Physica

E. Biémont, "Etude le long des séquences isoélectroniques du comportement des durées de vie de niveaux peu excités d'alcalins," Physica 85C, 393–402 (1977).

Other

A. J. Willis, ed., The First Year of International Ultraviolet Explorer (University College, London, 1979).

B. Battrick and J. More, The Second European International Ultraviolet Explorer, ESA-SP 157 (ESTEC, Noordwijk, The Netherlands, 1980).

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