Figure 2.

(a) Flood image corrections (normalized to 1 at max point) for Cherenkov cameras at door (cam0, left), front (cam1, middle), and wall (cam2, right). (b) Plot of perspective geometrical correction factors (red line) used to correct the Cherenkov intensities, with reference point at the isocenter. The dotted lines are the measured data (ratio between the diode measurements and the Cherenkov readings) for different MUs, and the red line is the averaged result.