Silicon Formula: Si Low Loss

Submitted by Michael Stöger-Pollach, December 18, 2007.

Source / Purity: 99.999%

Author Comments: Cerenkov losses and light guiding modes are present in the very low loss! Compare with spectra recorded at other thicknesses in this base. Analyst: M. Stoeger-Pollach. Temperature: Room. BEAM/Crystal: 110.

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Spectrum Metadata

Specimen Name
Tecnai F20 monochromator
Spectrum Type
Low Loss
Specimen Formula
Si
Data Range
-2.96 eV - 20.86 eV
Source and Purity
99.999%
Keywords
imported from old site
Alternative URL
Old EELS DB
Microscope Name / Model
Tecnai F20 monochromator
Gun Type
Thermal type FEG ( monochromator was used )
Incident Beam Energy
200 kV
Resolution
0.12 eV
Monochromated
Yes
Dispersion
0.02 eV/pixel
Convergence Semi-angle
0.5 mrad
Collection Semi-angle
0.18 mrad
Integration Time
0.1 secs
Number of Readouts
1
Detector
Parallel: GIF
Dark Current Correction
Yes
Gain Variation Spectrum
Yes
Relative Thickness
1.57 t/λ
Reference
M.Stoeger-Pollach et al., Micron 37(2006)396-402