Figure 5 Tails correction. The Bragg peak (intensity J) is superimposed on a thermal diffuse scattering peak modelled as a triangle of half-width v and height h in the reciprocal-space coordinate q = , where is the rotation angle and is the radius of the spot from the rotation axis. If the spot is integrated over the rotation range shown, the two areas A1 and A2 of the diffuse scattering are not measured.

© International Union of Crystallography 2006