Figure 10
GIXD spectra measured on a Langmuir monolayer of behenic acid compressed at 25 mN m−1 (a) with the classical setup of a 2D detector with a Soller collimator, and (b) without any collimation system before the detector but with a 15 µm × 24 µm (H × V) beam. The detector is located 750 mm from the centre of the sample. The red lines are fits by two Lorentz functions and a linear sloping background. |