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arXiv · 2506.14352

Experimental determination of the sodium K-shell atomic fundamental parameters for X-ray spectroscopy

Marie-Louis Venzke·Katja Frenzel·Philipp Hönicke
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Abstract

Reliable fundamental parameters are essential for accurate X-ray fluorescence analysis of sodium. This work presents updated experimental values with reliable uncertainties for sodium K-shell fundamental parameters such as: fluorescence yield, photoionization cross sections, and Auger yields. Using a physically calibrated setup and a thin NaCl layer on a silicon nitride membrane, a holistic determination approach was applied to reduce uncertainties. The new values represent a significant improvement on the ones widely used in databases. All data are available via Zenodo to support precise sodium quantification in scientific and industrial applications.

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Marie-Louis Venzke, Katja Frenzel, Philipp Hönicke. 2025-06-17. Experimental determination of the sodium K-shell atomic fundamental parameters for X-ray spectroscopy. https://arxiv.org/abs/2506.14352

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