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A new background subtraction for low‐energy EELS core edges
Author(s) -
Tenailleau H.,
Martin J. M.
Publication year - 1992
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1992.tb01529.x
Subject(s) - window function , enhanced data rates for gsm evolution , energy (signal processing) , subtraction , background subtraction , electron energy loss spectroscopy , function (biology) , window (computing) , physics , limit (mathematics) , mathematics , optics , computational physics , computer science , mathematical analysis , statistics , artificial intelligence , spectral density , transmission electron microscopy , pixel , arithmetic , evolutionary biology , biology , operating system
SUMMARY A new three‐parameter function is proposed that improves the ‘classical’ power‐law function for background subtraction processing at low energy losses in electron energy‐loss spectroscopy. The variation of the edge integrals with the width of the pre‐edge window Γ is reduced by a factor of at least five (of interest for accurate quantitative analysis), as is the variation in the height of energy‐loss near‐edge structure. The lower energy limit used for previous background functions has been cut by a factor of two or more. However, the principal advantage of this background function is that the difficulty in the choice of the pre‐edge window Γ is removed since the widest possible need only be taken.