Effects of sample preparation on powder diffraction data

6 Effects of sample preparation on powder diffraction data 

To summarize this section, a high quality specimen for powder diffraction may be difficult to prepare and it is not as simple as it seems. The task requires both experience and creativity. The adverse effects of an improperly prepared sample can be illustrated by the following three figures, shown in Rietveld format, where the experimental powder diffraction data were collected in the Bragg-Brentano geometry from two different specimens prepared from the same material, which was intentionally left in the form of course powder. 

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