FWHM (Peak-width) versus Pass Energy (PE)   C (1s) FWHM from Poly-Butene polymer FWHM changes with Pass Energy (PE) settings:  10, 50 and 200 eV 10 eV and 50 eV Pass Energies give almost the same FWHM.  The natural FWHM for C (1s) is revealed by the 50 eV PE.   Three C (1s) peaks […]

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