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User name R. Michaels
Log entry time 22:59:43 on September23,2009
Entry number 291303
keyword=10 uA Qsq run.Short run at 10 uA.
Runs 24840 / 4624 ... prescales 15, deadtime a bit high (37%)
Increase prescales to 30 for T2
Runs 24841 / 4625 ... better prescales
Rates are
L-HRS T1 = 45.7 kHz
L-HRS T2 = 62.8 kHz
R-HRS T1 = 65.6 kHz
R-HRS T2 = 71.5 kHz
After this we plan to do the checklist and put the
DAQ back to production mode.
Alex has some more low current running.
Fig 1 = prelim. results of Qsq vs current. Pretty flat
within the error. Stat errors only here. Only a
fraction of the runs analyzed. We have much more data
(stat error can be 7x10^-5 GeV^2 FWIW).
FIGURE 1
