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User name Yi Qiang
Log entry time 23:09:32 on May 07, 2009
Entry number 271604
Followups:
keyword=Plan for tonight's production runs and the pass change
Since the the unusual high dead time from the Right HRS DAQ has been
identified as the after-pulsing problem from the scintillator PMTs, if
only taking T1 the actual dead time is about 8% with 10 uA beam which is
about 6% lower than the online value (the 6% is from the after-pulsing,
see Vince's Halog entries for more details). So I will let the shift
workers to continue production with the following configurations:
LHRS: Unbuffered Mode, PS3 = PS4 = 1, PS8 = 100, others = infinity
RHRS: Buffered Mode, PS 1 = 1, PS8 = 100, others = infinity
And if everything goes smoothly the production runs will continue until
tomorrow's noon time, then we change the pass from three to two.
A copy of this log entry has been emailed to: tdaver@wm.edu, jpchen, jiang, doug, vasulk, yqiang