Secondary-electron emission and electron-energy-loss results on graphite single crystals

1986 ◽  
Vol 34 (9) ◽  
pp. 6080-6084 ◽  
Author(s):  
L. S. Caputi ◽  
G. Chiarello ◽  
A. Santaniello ◽  
E. Colavita ◽  
L. Papagno
Keyword(s):  
Energy Loss ◽  
Single Crystals ◽  
Electron Energy ◽  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Electron Energy Loss

Practical Aspects of Removing the Effects of Elastic and Thermal Diffuse Scattering from Spectroscopic Data for Single Crystals

2014 ◽  
Vol 20 (4) ◽  
pp. 1078-1089 ◽  
Author(s):  
Nathan R. Lugg ◽  
Melissa J. Neish ◽  
Scott D. Findlay ◽  
Leslie J. Allen
Keyword(s):  
Factor Analysis ◽  
Energy Loss ◽  
Single Crystals ◽  
Electron Energy ◽  
Diffuse Scattering ◽  
Energy Dispersive ◽  
Thermal Diffuse Scattering ◽  
X Ray ◽  
Electron Energy Loss ◽  
Thermal Diffuse

AbstractA method to remove the effects of elastic and thermal diffuse scattering (TDS) of the incident electron probe from electron energy-loss and energy-dispersive X-ray spectroscopy data for atomically resolved spectrum images of single crystals of known thickness is presented. By calculating the distribution of the probe within a specimen of known structure, it is possible to deconvolve the channeling of the probe and TDS from experimental data by reformulating the inelastic cross-section as an inverse problem. In electron energy-loss spectroscopy this allows valid comparisons with first principles fine-structure calculations to be made. In energy-dispersive X-ray spectroscopy, direct compositional analyses such as ζ-factor and Cliff–Lorimer k-factor analysis can be performed without the complications of channeling and TDS. We explore in detail how this method can be incorporated into existing multislice programs, and demonstrate practical considerations in implementing this method using a simulated test specimen. We show the importance of taking into account the scattering of the probe in k-factor analysis in a zone axis orientation. The applicability and limitations of the method are discussed.

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