Figure 3
I(Q) for (a) PMMA and (b) Tempax, both at room temperature. The PMMA (Tempax) measurements were made with an incident beam intensity of 4 × 1010 (2 × 1010) 21.747 keV photons s−1 into a 50 µm-diameter spot. (c) Measured intensity from one analyzer set at zero energy transfer from a 2 mm-thick sample of PMMA and a 1.5 mm-thick sample of Tempax. [2 × 1010 s−1, 1.3 meV resolution at 21.747 keV, analyzer acceptance set to 4.5 mrad (H) × 9 mrad (V).] The notation `0 h', `24 h', etc. indicate the time (in hours) of integrated illumination. |