Figure 7
Two-dimensional diffraction patterns of the b.c.c.-Fe taken during heating of the α phase (a–c) and solidification of the δ phase (b–f) on stationary and spinning samples. The off-center geometry captured by the PILATUS detector during the cycle shown in Fig. 6 is compared with the symmetrical pattern acquired with the XRD 1621 detector during a similar thermal cycle. The sensitive areas of both detectors are displayed to scale. A magnified view of the areas indicated by the black boxes is shown in the corresponding bottom panels. |