Scan over rotation angle of the prtDIRC.
1000 pi+@1.7GeV/c each angle. No lens. Real geometry. Rotation point at the center of the plate. Bottom and top prism-plate steps are equal.
1000 pi+@1.7GeV/c each angle. No lens. Real geometry. Rotation point at the center of the plate. Bottom and top prism-plate steps are equal.