High-resolution X-ray diffraction with no sample preparation.

In contrast, the quartz peak fits showed a trend of increasing m with energy, from ∼0.9 at 2.1 keV to ∼1.8 at 5 keV.

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The avoidance of the need to extract samples from high-value and rare objects is a highly significant advantage, applicable also in other potential research areas such as palaeontology, and the study of meteorites and planetary materials brought to Earth by sample-return missions. energy-dispersive XRD back-reflection geometry sample preparation non-destructive analysis cultural heritage artefacts

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The Si primary standard peak fits had m ≃ 1.3 whereas the corundum peaks were best fitted with m ≃ 0.92, indicating a modest super-Lorentzian character; neither showed a significant trend with energy.

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