Fig. 5.

The two figures show comparisons of effective area ($A_{\mathrm{eff}}$) of cross-check luminometers with respect to the nominal PCC+PVC for fills 4266 (upper) and 4954 (lower). The points are the ratio of the $A_{\mathrm{eff}}$ of the labeled luminometer to PCC+PVC. There are 25 $A_{\mathrm{eff}}$ values because there are five scan pairs with five BCIDs analyzed for each scan pair. The solid lines are the average of all the $A_{\mathrm{eff}}$ while the bands are the standard deviations. In both sets of data the average comparison is compatible with unity within or near the standard deviation