The BCAL is used to measure the energy and time of showers.

1. Occupancy: This should be approximately flat. There can be hot channels when the baseline drifts. If we're running ask for a pedestal calibration to be done. If we're not running nothing can be done but a very hot channel might explain low efficiency in that area.
2. Hit Efficiency: This should be approximately flat. If there are features we should understand why.
3. Recon. BCAL 1: The histograms are somewhat complicated. The best is to compare them to a good run (the example above.) A difference from the example should be flagged.
4. Recon. BCAL 2: The histograms are somewhat complicated. The best is to compare them to a good run (the example above.) A difference from the example should be flagged.
5. Recon. BCAL 3: The histograms are somewhat complicated. The best is to compare them to a good run (the example above.) A difference from the example should be flagged.
6. BCAL Matching: These plots are for charged particles that are tracked in the drift chambers and projected to the BCAL. The z position along the BCAL can be calculated using the time difference between upstream and downstream hits and compared to the extrapolated position using the drift chambers. The histograms are somewhat complicated. The best is to compare them to a good run (the example above.) A difference from the example should be flagged.
   1. BCAL / Track Delta z (cm): (z determined from time of up - down hits in BCAL) - (z determined from the extrapolation of tracks in the drift chambers)
   2. projected BCAL Hit-Z (cm): z determined by extrapolating tracks in the drift chambers to the BCAL.
   3. Track / BCAL Match Rate: The match rate is the ratio of (number of hits in the BCAL that match the extrapolation of tracks in the drift chamber) / (number of tracks in the drift chamber that point at the BCAL).

General note: The electronics for the top right quadrant of the detector were borrowed, and used for the muon chambers. The forward trigger configuration did not favour the CDC and its plots from CPP suffer from much fewer statistics than GlueX or PrimEx. It is not a critical detector for this experiment and because of the difficulty of calibrating the data, the usual requirements were relaxed. Many of the runs don't have enough statistics to evaluate them properly.
CDC Occupancy: It hurts me to look at these plots. For the remaining 3/4 of the detector, there should be a uniform decrease in intensity from the center of the detector outward. Random white cells scattered throughout occur when not enough data were collected, eg empty target runs, trigger tests or no beam. Several contiguous white, dark blue or bright yellow cells which don't match the neighboring cells are a problem.
Time-to-distance: 𝛿, the change in length of the LOCA caused by the straw deformation, is plotted against the measured drift time, t drift. The color scale indicates the distance of closest approach between the track and the wire, obtained from the tracking software. The red lines are contours of the time-to-distance function for constant drift distances from 1.5 mm to 8 mm, in steps of 0.5 mm. They should lie over the top of the dark blue contour lines separating the colour blocks. For the plot of residuals vs drift time, the mean should be less than 20um and the sigma should be less than 200um.
dE/dx: At 1.5GeV/c the fitted peak mean should be within 10% of 2.02 keV/cm.
Efficiency: The efficiency should be 0.9 or higher at 0 to 0.5cm and then fall to around 0.7 or above at 0.75cm.

Is used for neutral particle detection and pion identification.

1. Check Occupancy:
2. Check FCAL Hits 1:
3. Check FCAL Hits 2:
4. Check FCAL Clusters 1:
5. Check FCAL Recon. 1:
6. Check FCAL Recon. 2:
7. Check Recon. FCAL Matching: