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User name Carlos
Log entry time 17:53:01 on October 28, 2010
Entry number 337199
keyword=Dead time study with buffering
I propose the following runplan to test deadtime in buffering mode:
1) Turn OFF calorimeter HV
2) Coda configuration: ROC1417Buff, ps5=1 all others 0
3) Take 10min-long runs at the following beam currents on the 15cm LH2
target: 1.0 uA, 2.0uA, 3.0uA, 4.5uA
4) Just before stopping EACH run, please log:
i) scaler rates
ii) runcontrol window (CODA)
iii) ROC 14 and ROC 17 telnet windows
5) Turn ON calorimeter HV, and come back to production (CODA: DVCSTrig,
ps5=1, all others 0)
Estimated time: 50min
Please start the runs only when the desired current is been achieved. If
the beam has been very unstable (more than 5 trips in 10min), please
repeat the run.
A copy of this log entry has been emailed to: efuchey@jlab.org, itard@jlab.org