Figure 7
Increase of the RC fit variance versus number of lenses in the CRL. The insets show the two-dimensional distribution of broadening in a circle of radius 300 µm centered at the optical axis. The red triangle marker is the value measured at 90 keV. A suitable correction for systematic broadening that stems from averaging of deflection angles over the detector pixel dimensions is made (such broadening would be observed even in a perfect CRL). |