Electron microscopy
 
Comparison between Infrared Spectrum and EELS
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Table 1221. Comparison between Infrared Spectroscopy and EELS.

 
Infrared Spectroscopy
EELS
Energy resolution <10 meV 16 meV - 2 eV
Probe size Large Small

As an example, Figure 1221 shows an UHR EEL spectrum of guanine acquired at an accelerating voltage of 60 keV and an infrared spectrum of the same sample. The agreement between the results from the two techniques is very good, except EELS energy resolution is much worse.

Comparison between Infrared Spectrum and EELS

Figure 1221. (a) UHR EEL spectrum of guanine (Nion UltraSTEM100MC, 60 kV) and (b)infrared spectrum of guanine. Adapted from [1]

 

 

 

 

 

 

 

 

 

 

[1] H. Cohen, P. Rez, T. Aoki, P.A. Crozier, N. Dellby, Z. Dellby, D. Gur, T.C. Lovejoy, K. March, M.C. Sarahan, S.G. Wolf and O. L. Krivanek, Hydrogen Analysis by Ultra-High Energy Resolution EELS, Microsc. Microanal. 21, 661, 2015.

 

 

 

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