Supporting data for: A dual-branch KAN spectral feature module for baseline–peak decomposition and multielement quantification of ores by PGNAA

This dataset contains a representative subset of the PGNAA spectra associated with the accompanying article. For each target element (Ca, Si, Fe, and Al), samples with the highest and lowest concentrations in the original dataset were selected. Three spectra were then selected from each of these samples. This selection provides examples of the measured spectra at the concentration extremes of each target element while reducing the file size to facilitate downloading and access.