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To find the distribution of CAL hit occupancy, click on
Root > Digi > CAL > Num. logs hit (LAT)
Root > Digi > CAL > Num. logs hit (tower)
If zero suppression is bad, the minimum occupancy won't be zero. If it's really bad, the peak will be somewhere above zero. Find out which tower is causing the problem, or if all towers are.

To see a 2D histogram of the average hit occupancy per layer and tower, click on
Root > Digi > CAL > CAL Hit map (tower,layer)
or its complement
Root > Digi > CAL > Missed logs map (tower,layer)

2. From the initial LPA runs, "measure" the LAC, FLE, and FHE thresholds.

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