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Figure 12
(a) Au 4f spectra recorded at different N2 pressures between 10−5 and 30 mbar (photon energy = 900 eV; exit slit = 0.05 mm; pass energy = 20 eV). (b) Au 4f peak intensity as a function of N2 and H2 pressure for different photon energies. Symbols: integrated peak area of the measured Au 4f signal; dashed/solid lines: model calculation for photoelectron path length of 0.25/0.38 mm. |
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