Here's a list of pulser values taken from the last few runs as a reference for what rate the "100-Hz" pulser is actually seeing.
All rates in Hz.
29 May:
6h52 62
9h36 96
9.39 96
10.35 50
30 May
12.15 76
12.16 84
3.01 48
3.21 96
3.27 48
4.57 48
7.15 48
8.39 48
9.26 48
9.33 66
11.35 48
1.29 48
Rate was 48 Hz when the run was stopped due to loss of beam (I looked but didn't take a picture).
I don't know if this problem is caused by the scaler counting behaving oddly but that seems like a more obvious solution than the pulser frequency randomly changing. If the pulser is actually vital for the experiment, someone should look in the offline data to see what's happening. |