Elastic and Inelastic Contributions to the Auger Electron Appearance Potential Spectrum of Titanium.
MARYLAND UNIV COLLEGE PARK DEPT OF PHYSICS AND ASTRONOMY
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The energy distribution of electrons contributing to the L-shell Auger electron appearance potential spectrum of a polycrystalline titanium surface has been measured. The Auger electron appearance potential spectrum is obtained by differentiating the total secondary electron yield of an electron bombarded sample as a function of incident electron energy. At the threshold for scattering from a core level the secondary yield increases. Most of the electrons contributing to this increase have energies below 30 eV, and result from secondary processes following Auger recombination of the core hole. The elastic yield decreases at the threshold, however, due to opening a new channel for inelastic scattering. A comparison of the elastic yield spectrum DAPS, the total yield spectrum AEAPS and the soft X-ray yield spectrum SXAPS, shows very similar line shapes, but differences in the relative strength of the lines. Author
- Nuclear Physics and Elementary Particle Physics