Abstract

Ruby, the red variety of the mineral corundum, is among the most valuable of gems. Ruby is allochromatic, with the color arising from the trace concentrations of chromium (Cr). Gemmologists face two problems in the identification of rubies. The first is the determination of whether a ruby is natural or synthetic; synthetic rubies are much less valuable but may not be distinguishable from natural rubies with the use of conventional tests (e.g., hardness, density, and refractive index). The second is the determination of the source of origin.

Applications of the non-negative least-squares deconvolution method to analyze energy-dispersive x-ray fluorescence spectra

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Quantitative analysis of energy-dispersive X-ray fluorescence spectroscopy based on machine learning and a generative data enhancement technique

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Properties of polycapillary optics dedicated to low-energy parallel-beam wavelength-dispersive spectrometers for synchrotron-based X-ray fluorescence study

P. Jagodziński, M. Pajek, D. Banaś, A. Kubala-Kukuś, J. Szlachetko, M. Cotte, and M. Salomé
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Energy-dispersive X-ray diffraction using an annular beam

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Low energy X-ray dosimeter based on LYSO:Ce fluorescent powder

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