Figure 2
From: Identification of simulants for explosives using pixellated X-ray diffraction
Thickness effect. The effect of sample thickness on the observed diffraction pattern. (a) Photons scattered from the rear of the sample will arrive at a different pixel to those scattered through the same angle from the front of the sample. (b) Alternatively, this effect can be thought of as different scattering angles being measured at the same pixel. The scattering angle assigned to each pixel is based on the sample-detector distance as shown.