Abstract
A code XANTHO for fitting X-ray spectra induced by photons or charge particles was developed as a Lazarus application. Background subtraction is performed by iterative filtering (brushing) of the source spectrum, based on the adapted Kolmogorov-Zurbenko approach. For comparison, a code with top-hat filtering was also developed. Critical comparison was made for a glass standard at PIXE analysis. XANTHO is intended for accurate fitting of individual spectra during analytical work and for sequential fitting at mapping experiments.
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