Figure 6
[Fig. 3 from Fewster (2014)]: (a) the scattering pattern from ∼120 crystals (or if perfectly packed 300 crystals) isolated with a 3.5 µm incident beam that perpendicularly intersects a 1 mm-wide single layer of crystals of LaB6 with sizes of 2 to 5 µm. (b) gives the profile with ∼30 crystallites or if perfectly packed 75 crystallites (3.5 µm × 0.25 mm sample size), where only three reflections are clearly resolved compared with all ten 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 in 35 min. The samples were stationary throughout, so the incident beam only explored one orientation from each crystal. The peaks are narrow and occur at the correct 2θB positions and correspond to the interpretation where each crystal contributes intensity as in Fig. 1. |