The DIRC QA postscript plots are produced by the macro DrcQaRootHists.cc in the DrcOprMon package. The macro takes as input the root file produced by the PC or ER processing and produces DIRC postscript pages which are then merged with the other system outputs to produce a single file for the run. Before 2005 and the 18 series, the OPR outputs were in hbook format and were processed by the PAW macro DrcOprMon.kumac which is no more maintained.
The production of histograms allowing a monitoring of the DIRC reconstructed data is defined in the DrcOprMonitorSequence which is activated centrally by the BaBar reconstruction framework.

The DIRC-specific postscript pages are described below. They all have the same layout: the title at the top; then the plots and finally two boxes at the bottom of the page: on the left the run number, on the right the prospec number (release version + a two-digit number incremented if a run gets reprocessed in the same release).

List of DIRC QA plots:

• Occupancy and associated hits
• Timing
• θ_C resolution
• Number of photons versus bar number; θ_C residual versus bar number and dip angle
• Particle identification
• Bhabha and Dimuon control samples (I)
• Bhabha and Dimuon control samples (II)
• K_S (decaying in pions) and proton control samples
• LER trickle injection monitoring
• HER trickle injection monitoring
• LER and HER trickle injection time and revolution profile plots
• T₀ Global and sector-by-sector rolling calibrations
• Reference plots for cosmic runs