Scan over rotation angle of the prtDIRC.
500 pi+@1.7GeV/c each angle. No lens. Beam test geometry (07.2014). Rotation point is 330 mm away from prism. Bottom prism-plate steps is 30.6 mm.
Geant geometry screenshots. (click for zoom)
MCP layout:
Step1 (30.6 mm):
Step2 (0 mm):
