Figure 10
Experimental set-up for EDD measurement from a thick polycrystalline sample. The volume seen by the detector is determined by the beam width, the entrance slit ES, and the slits CS and DS in front of the solid-state detector (SSD). There may be only a small number of reflecting grains in the volume, and their non-uniform distribution causes variation in the actual scattering angle, as indicated by a spot in the enlarged picture of the scattering volume. |