6533b872fe1ef96bd12d3756

RESEARCH PRODUCT

The effect of energy-dependent detector efficiency in electron spectroscopic methods: XPS, AES and DCEMS

Zs. KajcsosW. MeiselP. GütlichP. Griesbach

subject

Range (particle radiation)Auger electron spectroscopyMössbauer effectChemistryInstrumentationDetectorSurfaces and InterfacesGeneral ChemistryElectronCondensed Matter PhysicsElectron spectroscopySurfaces Coatings and FilmsX-ray photoelectron spectroscopyMaterials ChemistryAtomic physics

description

Systematic studies were performed to investigate the distorting effect of the electron energy dependence of the channeltron detector efficiency on the shape of data distributions in electron spectroscopy. In agreement with earlier results for electron energies up to 3 keV, it was found that a virtually energy-independent shape of the electron distribution might be achieved even in a very broad range of electgron energies (up to 15 keV) by appropriate selection of the operational high voltage of a channeltron. However, the efficieny of channeltrons was also found to depend on count rates, indicating one of the principal difficulties in comparing distribution recorded under different experimental conditions.

https://doi.org/10.1002/sia.740200610