3. IL DETECTION

• 3.1. Detection specifics
• 3.2. Acceleration voltage fluctuations
• 3.3. Auger lines suppression

Both ILs and AES lines are populating the secondary electrons spectrum. To avoid overlapping, the primary electron energy must be selected so as to shift the ILs into the smooth region of the spectrum. This is possible because the kinetic energy of the IL electrons
E=Ep- changes simultaneously with Ep, and the Auger electrons energy does not depend on Ep. In the case of complex compounds, which have a rich spectrum of IL and AES lines and also while investigating the dependencies of IL intensity on Ep in the wide energy range it is impossible to avoid overlapping. This prompts to use the AES lines suppression.

Look further: 4. ADJUSTMENT OF SPECTROMETER'S ELECTRON OPTICS