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EXPERIMENTAL APPARATUS


Electronic spectrometer for surface analysis.

Research techniques:

• low-energy electron diffraction and reflection high-energy electron diffraction
• low energy ion spectroscopy
• Auger electron spectroscopy
• electron energy loss spectroscopy
• appearance potential spectroscopy

Basic elements:

• four-grid retarding field spherical analyzer
• normal electron gun
• sliding electron gun
• ion gun for surface clearing
• vacuum system

Technical parameters:

Pressure of residual gases in the chamber: 10^-8 Pa
Energy resolution: ΔЕ/Е₀ = 0,5% при Е₀< 500 eV
                           ΔЕ/Е₀ = 0,3% при Е₀ > 500 eV
Primary electron energy: ( 5–2000 ) eV
Primary electron current: 50 μА
Electron beam diameter: 0,3 mm
Ion energy: ( 300–2000 ) eV
Ion beam diameter: 5 mm.