Figure 2
Top: representative integrated intensity versus dose data for two thaumatin crystals at 260 K for a dose rate of 0.09 MGy s−1. Each curve was recorded from one sample position. Sample 1 has an intensity variation with dose as in Fig. 1, while sample 2 has an initial plateau in intensity. Bottom: the intensity plateau for sample 2 results from initial growth with increasing dose of a subset of Bragg peaks that dominate the integrated intensity. Supplementary Fig. S6 shows similar data acquired at a dose rate of 36 MGy s−1. |