Beam-Foil Spectroscopy

1. Front Matter

   Pages i-xix

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2. The Term Analysis of Atomic Spectra: Present Status and Remaining Problems

   • Bengt Edlén

   Pages 1-27

3. Recent Configuration Interaction Studies in Atomic Lifetimes

   • A. Hibbert

   Pages 29-41

4. Oscillator Strengths for Ca I, Sc II, and Ti III

   • G. A. Victor, R. F. Stewart, C. Laughlin

   Pages 43-50

5. Transition Probabilities for Ionized Atoms

   • A. W. Weiss

   Pages 51-68

6. Correlation Effects and F-Values in the Sodium Sequence

   • Charlotte Froese Fischer

   Pages 69-76

7. On the Possibility of Observing Nonexponential Decays in Autoionizing States

   • Cleanthes A. Nicolaides, Donald R. Beck

   Pages 77-81

8. Coulomb Methods in Atomic Transition Probability Calculations

   • Richard Crossley, Susan Richards

   Pages 83-87

9. Lamb Shift in Hydrogen-Like Ions

   • Peter J. Mohr

   Pages 89-96

10. Hyperfine Quenching of the 23P0 State in Heliumlike Ions

    • Peter J. Mohr

    Pages 97-103

11. Anomalies in the Fine and Hyperfine Structure of Alkali Isoelectronic Sequences

    • Donald R. Beck, Cleanthes A. Nicolaides

    Pages 105-109

12. Relativistic Contributions to Transition Energies in NiI and CuI Isoelectronic Sequences

    • C. P. Bhalla, C. L. Cocke, S. L. Varghese

    Pages 111-114

13. Oscillator Strengths in N, N+,O and O+ Obtained from the First Order Theory of Oscillator Strengths (FOTOS)

    • Donald R. Beck, Cleanthes A. Nicolaides

    Pages 115-119

14. Lifetimes and Fluorescence Yields of Three-Electron Ions

    • C. P. Bhalla, A. H. Gabriel

    Pages 121-127

15. Future Directions for Beam-Foil Spectroscopy

    • S. Bashkin

    Pages 129-145

16. Review of Experimental Lifetimes: Third Period Elements

    • M. E. M. Head, C. E. Head, T. N. Lawrence

    Pages 147-154

17. Review of Experimental Lifetimes: Fourth Period Elements

    • C. E. Head, T. N. Lawrence, M. E. M. Head

    Pages 155-163

18. Heavy-Element Beam-Foil Lifetime Measurements and Related Experimental Problems

    • G. Sørensen

    Pages 165-182

19. Measurements of He I Lifetimes and Fine Structure by a Two-Spectrometer Method

    • G. Astner, L. J. Curtis, L. Liljeby, I. Martinson, J. O. Stoner Jr.

    Pages 183-190

20. Mean-Lives of RbII in the Visible and Vacuum Ultraviolet

    • M. Czempiel, H. J. Andrä

    Pages 191-198

The appreciable evolution of the nearly teenaged branch of atomic and molecular physics called beam foil spectroscopy is clearly depicted in the present volumes, which are devoted to publication of presentations at the Fourth International Conference on Beam Foil Spectroscopy and Heavy Ion Atomic Physics Symposium. The transition from childhood to adolescence parallels human experience in that diffusion of interests and interactions beyond the confines of the original family has most certainly occurred. The pre-occupation with techniques and their develop­ ment has been largely replaced by interest in the physics of the widest possible array of atomic and molecular physics experiments, in which spectroscopic study (visible, UV, XUV, X-ray, electron) of collisional interactions of fast beams is the unifying theme. The description "accelerator-based atomic physics" is perhaps more representative of the subject today than is the original, beam-foil spectroscopy," since so many experiments have nothing to do with foils, and furthermore, employ spectroscopy mainly as an incidental tool. What, then distinguishes beam-foil spectro­ scopy from overlapping fields of atomic collisions physics? In an era where the boundaries are becoming ever more diffuse, there can be no clear definition. A good functional definition was recently conceived by Peter Erman, under the salubrious stimulus of a large Tennessee bourbon: it is the tribal experience of the community of scientists who have banded together to develop the discipline over the past dozen years, as shared at the triennial conferences devoted to it.

• UV
• atomic collision
• collision
• molecular physics
• spectroscopy

• University of Tennessee, Knoxville, USA

  Ivan A. Sellin, David J. Pegg

• Oak Ridge National Laboratory, Oak Ridge, USA

  Ivan A. Sellin, David J. Pegg

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