User name R. Michaels
Log entry time 05:19:25 on November 4,2007
Entry number 212199
This entry is a followup to: 212192
Followups:
- 212211 11/04/07 05:59 R. Michaels fluctations in event length
- 212239 11/04/07 07:26 R. Michaels TACC vs event length.
Here is a look at the rates in a recent run. Plotted are
the trigger rates, DAQ rate "Tacc" (which gives an indication of
the livetime) and beam current.
Fig 1 is for L-HRS run 1859
Fig 2 is for R-HRS run 20508 (concurrent)
Both show glitches in the Accepted DAQ rate where the trigger
rate and beam current were smooth. The glitches are at
different points in time. These were concurrent runs on
the Pb target.
Implication ? We should probably check offline if the deadtime
makes sense offline using THaNormAna or whatever. The "Tacc"
signal is easily corroborated by counting events in CODA file.
FIGURE 1
FIGURE 2
