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Figure 3
The scattering pattern from ∼120 crystallites or if perfectly packed 300 crystallites (3.5 µm beam width × 1 mm sample size and a single layer of crystallites) of LaB6 with crystallite sizes varying from 2 to 5 µm with the full range of reflections up to 80° 2θ (a). (b) gives the profile with ∼30 crystallites or if perfectly packed 75 crystallites (3.5 µm beam width × 0.25 mm sample size), where not all the reflections are clearly resolved as in the larger sample size. The data were collected with a 0.01° divergent Cu Kα1 beam from a 1.8 kW X-ray laboratory source and a stationary sample in 35 min.

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