Make New Entry, Make Followup Entry
User name D. Parno
Log entry time 03:16:59 on March15,2009
Entry number 266211
This entry is a followup to: 266168
keyword=T8 problems began halfway through Run 2163I did a full scaler replay of Run 2163. The L1A signal (Fig. 1) shows that the problems with T8 began about halfway through this run (after the events shown in the online histograms, which looked normal).
You can see that, at around clock count 1e6, the L1A signal doubles. The line also becomes much broader. In Fig. 2, I've zoomed in on that portion of the graph, and you can see that the signal is oscillating slightly -- just as we observed in later runs. This explains why that portion of the graph is so broad.
FIGURE 1
FIGURE 2
