(a) Resolution dependence of the diffracted intensity per unit absorbed dose, 〈I〉/D. To allow direct comparison of different resolution shells, 〈I〉/D in each resolution shell is normalized to the value at 17.5 keV. The mean diffracted intensity, 〈I〉, is scaled to the illuminated crystal volume. (b) Energy-dependent change in resolution cutoff as ascertained using a criterion of CC1/2 > 0.33 for 20 crystals. The mean change in resolution is shown as a thick black line.