lut improvements

LUT improvements and calibration

  • GlueX commissioning data

Accumulated pattern for of pi/K at different angles => unexplained yield enhancements at the edges of PMTs.

Cause - reflections inside PMT:

After fix:

Scan of the mirror rotations for tracks which hit bar #3:

For DIRC_HDDS_v4.2.xml (nominal geometry)

Mirror 1:

Mirror 2:

Mirror 3:

For DIRC_HDDS.xml (DIRC spring 2019 commissioning geometry):