Automatic spike correction using UNIFIT 2020 |
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| Authors: | Ronald Hesse Carsten Bundesmann Reinhard Denecke |
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| Institution: | 1. Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry, Leipzig University, Leipzig, Germany;2. Department of Precision Surfaces, Ion Source Development and Applications Group, Leibniz Institute of Surface Engineering (IOM), Leipzig, Germany |
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| Abstract: | The improvement of the software UNIFIT 2020 from an analysis processing software for photoelectron spectroscopy (XPS) only to a powerful tool for XPS, Auger electron spectroscopy (AES), X-ray absorption spectroscopy (XAS), and Raman spectroscopy requires new additional programme routines. Particularly, the implementation of the analysis of Raman spectra needs a well-working automatic spike correction. The application of the modified discrete Laplace operator method allows for a perfect localization and correction of the spikes and finally a successful peak fit of the spectra. The theoretical basis is described. Test spectra allow for the evaluation of the presented method. A comparison of the original and spike-corrected real measurements demonstrates the high quality of the method used. |
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| Keywords: | Auger electron spectroscopy AES photoelectron spectroscopy XPS Raman spectroscopy spectrum analysis software spike correction UNIFIT X-ray absorption spectroscopy XAS |
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