Figure 4
Resolution-dependent intensity decay of a thaumatin crystal at 100 K (a); data were collected at a dose rate of ∼480 kGy s−1. In the low-dose region a departure from a simple exponential decay can be seen (inset). (2) is fitted to the low-dose region for the total diffracting power (dashed line). Comparison of the decay of the cryocooled crystal in the top section of the figure with the room-temperature thaumatin crystal shown in Fig. 2 (dose rate 1.32 MGy s−1) shows a similar rate of decay at 100 K and room temperature at very low doses (b). |