Optical oscillator strengths

If we now plot T as a function of RjE, owing to the small variation of the logarithm term with low-energy ejected electron energy, the ratio Y is expected to have the same general structure with ejected electron energy as i-e-> as the optical oscillator strength... 

The relative success of the binary encounter and Bethe theories, and the relatively well established systematic trends observed in the measured differential cross sections for ionization by fast protons, has stimulated the development of models that can extend the range of data for use in various applications. It is clear that the low-energy portion of the secondary electron spectra are related to the optical oscillator strength and that the ejection of fast electrons can be predicted reasonable well by the binary encounter theory. The question is how to merge these two concepts to predict the full spectrum. 

Fig. 10 shows the relation between the experimental values ctm and the theoretical predictions cross sections previously reported for the de-excitation of He(3 P) [146,147]. The difference between the values for He(2 P) and He(3 P) is explained by the difference in the optical oscillator strengths for the two states. The experimental values can generally be explained by ct-wk based on the long-range... 

Electronic transitions, because knowledge of the optical oscillator strengths and of the energies of excited states is absent in most such methods ... 

CONTINUUM OPTICAL OSCILLATOR- STRENGTH MEASUREMENTS BY ELECTRON... 

Optical Oscillator-Strength Measurements By Electron Spectroscopy... 

In energy transfers above the ionization threshold, it is usual for several different ionization processes to occur with probabilities depending on E. The measured optical oscillator strength for absorption is thus a sum corresponding to a variety of different processes. Denoting this total optical oscillator (ionization potential) strength by df(0)/dE, we have, for... 

Optical Oscillator-Strength Measurements By Electron Spectroscopy where E is the energy loss. If E0 is the incident energy... 

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