Physics – Instrumentation and Detectors
Scientific paper
2010-01-18
Physics
Instrumentation and Detectors
29 pages
Scientific paper
Three different evaluations of the energy dependence of the transmission-detection function of a two-stage cylindrical electron analyzer have been obtained by resorting to three established procedures. Their relative merits have been tested as follows. First they have been used to correct raw XPS spectra of clean Cu, Ag and Au surfaces. Next, the secondary electron background has been subtracted using Tougaard's method. Finally, the primary electron spectra so obtained have been reanalyzed by peak area measurement in the frame of the modern formalism for quantitative XPS analysis. Ideally a constant residual value should thus be obtained. The variability of these residuals with peak energy allows an objective rating of the initial transmission-detection functions.
Bracconi Pierre
Heintz Olivier
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