Variation in the scaling parameters and total scattering intensity with dose. For each of the systems studied, one measurement is shown. (a) B-factors: the solid line represents an approximation according to equation (2) using the best fit of B0 and β. (b) scale factors divided by the constant [equation (3)]: the solid line represents exp(−γ2D2) using the best fit value of γ. (c) Total scattered intensity, estimated by intensity summation (dots) and calculated according to equation (4) (solid lines), using the best fit B0, β and γ as in (a) and (b).