Figure 8
Changes in low-angle diffraction induced by type II X-ray damage. Images before (left) and after (right) irradiation. (a) Methylated dioleoylphosphatidylethanolamine (DOPE-Me), 70% w/w water, 328 K, 12.5 keV, 473 krad s−1, 6.3 × 1011 photons s−1 and a total accumulated dose of 283 Mrad, where the Lα phase transforms to the HII phase. (b) MO, 40%w/w water, 354 K, 12.5 keV, 375 krad s−1, 6.3 × 1011 photons s−1 and a total accumulated dose of 228 Mrad, where the cubic Pn3m phase transforms partially to the HII phase. The first three HII reflections are indicated. Patterns were generated on the ID2 beamline at the ESRF. Modified from Fig. 1 of Cherezov et al. (2000). |