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User name V. Sulkosky
Log entry time 05:42:21 on October26,2007
Entry number 209676
keyword=No ADC signal for Cerenkov (LHRS)
Figure 1 shows the left gas Cerenkov ADC spectra. The HVs were pretty
low well below 2 kV. Run # 1269 is after we increased the HV to 2300
V. I suspect the ADC cable might be unplugged. The TDCs do show
signals. We also have T4 events for the left arm. Hence the scalers
and TDCs do not appear affected.
FIGURE 1