بيناب¬سنجي نورافشاني پرتوهاي ايكس براي شناسايي و تعيين غلظت آلياژهاي طلاپايه

X-ray fluorescence (XRF) , Fundamental Parameters (FP) , matrix absorption an‎d enhancement effects , silicon drift detector (SDD) , PyMca software , quantitative analysis of gold-based alloys

X-ray fluorescence spectrometry to identify an‎d determine the concentration of gold-based alloys

فيزيك

This study presents a comprehensive investigation into the principles an‎d application of X-ray Fluorescence Spectrometry (XRF) for the quantitative analysis of gold-based alloys. The research first outlines the theoretical foundations of X-ray generation an‎d fluorescence, followed by a detailed description of the Fundamental Parameters (FP) method employed to manually compute elemental concentrations in a representative gold alloy. Particular attention was given to calculating matrix absorption an‎d secondary enhancement effects, which significantly influence the accuracy of the measured characteristic line intensities. The results confirm that accounting for these matrix effects is crucial for achieving reliable quantitative outcomes. Subsequently, the same gold-based alloy was analyzed using spectra acquired with a Silicon Drift Detector (SDD) an‎d processed through the open-source PyMca software. By incorporating precise spectral modeling an‎d advanced geometric an‎d matrix corrections, PyMca determined the gold concentration with a deviation of less than one percent. Comparison between manual calculations an‎d software-based results demonstrated strong consistency, highlighting the complementary potential of analytical computation an‎d software modeling for accurate quantitative assessment of gold-based alloys in both research an‎d industrial applications.

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