Changes in the multiplicity histograms may be due to the effects of changing
noise levels (including cross talk) or abnormal gain. If evidence of
high multiplicities is seen, try lowering the HV on that plane for a
minute and then return to the nominal setting.
Figure 1: Typical Upstream DC
RawHits/Wire Multiplicity
Histogram.
Figure 2: Typical Downstream DC
RawHits/Wire Multiplicity
Histogram
Figure 3: Typical PC
Raw Hits/Wire Multiplicity
Histogram.
