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User name mercado
Log entry time 12:54:34 on April 1,2010
Entry number 315496
This entry is a followup to: 315478
Followups:
keyword=Recalibrated some CH crate 18-bit ADC pedestals.Noticed that some pedestals looked odd. Even though the ADC channel produced a healthy gaussian signal when beam was on, the pedestal is filled in 1 bin with an RMS of zero. Figure 1 shows healthy signals throughout the run, as shown in entry 315478. Figure 2 shows the pedestal values at the very end of the run when the beam was turned off. Two of the channels show a pedestal with zero RMS.
FIGURE 1
FIGURE 2
