focusing prism

Implementation of the focusing prism

  • BaBar barboxes

Hit pattern:

Optimization of the mirror's tilt and radius (for 30 degree pions; with chorm correction):

Example of the fit @ 1100 mm and 13 degree:

Example of the fit @ 700 mm and 13 degree:

SPR without chromatic correction:

Before chromatic correction:

After chromatic correction:

Geometry aliment: