Figure 13
Dose as a function of exposure time for each pad, calculated according to four different dose models. The numbers at each point denote the pads. Dose 1 denotes model 1 (dose resistive material), dose 2 denotes model 2 (mass resistive material), dose 3 denotes model 3 (linear absorption coefficient and density resistive material) and dose 4 denotes the present model where there is no restriction with respect to changes in material chemistry or elemental composition. Panel (b) shows an expanded view of the low dose regime, indicated by the solid box in (a). The dashed line in (b) denotes 1 MGy dose, the maximum value of the dose that the sample experienced from the C 1s, O 1s and F 1s NEXAFS analytical studies of the 9-pad pattern. |