Characteristic Energy Loss of Electrons Passing Through Metal Foils: Momentum-Exciton Model of Plasma Oscillations

1957 ◽  
Vol 108 (3) ◽  
pp. 570-575 ◽  
Author(s):  
Richard A. Ferrell ◽  
John J. Quinn
Keyword(s):  
Energy Loss ◽  
Exciton Model ◽  
Characteristic Energy ◽  
Plasma Oscillations ◽  
Metal Foils

Background Fitting in the Low-Loss Region of Electron Energy Loss Spectra

1990 ◽  
Vol 48 (2) ◽  
pp. 56-57
Author(s):  
C P Scott ◽  
A J Craven ◽  
C J Gilmore ◽  
A W Bowen
Keyword(s):  
Energy Loss ◽  
Multiple Scattering ◽  
Simple Form ◽  
Single Scattering ◽  
Low Loss ◽  
Characteristic Energy ◽  
Normal Method ◽  
Fitting In ◽  
Electron Energy Loss ◽  
Electron Energy Loss Spectra

The normal method of background subtraction in quantitative EELS analysis involves fitting an expression of the form I=AE-r to an energy window preceding the edge of interest; E is energy loss, A and r are fitting parameters. The calculated fit is then extrapolated under the edge, allowing the required signal to be extracted. In the case where the characteristic energy loss is small (E < 100eV), the background does not approximate to this simple form. One cause of this is multiple scattering. Even if the effects of multiple scattering are removed by deconvolution, it is not clear that the background from the recovered single scattering distribution follows this simple form, and, in any case, deconvolution can introduce artefacts.The above difficulties are particularly severe in the case of Al-Li alloys, where the Li K edge at ~52eV overlaps the Al L2,3 edge at ~72eV, and sharp plasmon peaks occur at intervals of ~15eV in the low loss region. An alternative background fitting technique, based on the work of Zanchi et al, has been tested on spectra taken from pure Al films, with a view to extending the analysis to Al-Li alloys.

Characteristic-energy-loss spectra of vanadium and ofV2O3

1974 ◽  
Vol 9 (8) ◽  
pp. 3369-3376 ◽  
Author(s):  
F. J. Szalkowski ◽  
P. A. Bertrand ◽  
G. A. Somorjai
Keyword(s):  
Energy Loss ◽  
Characteristic Energy

The form of characteristic energy-loss spectra

1969 ◽  
Vol 8 (12) ◽  
pp. 1012-1020
Author(s):  
M. I. Korsunskii ◽  
Ya. E. Genkin
Keyword(s):  
Energy Loss ◽  
Characteristic Energy
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