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User name johna
Log entry time 00:01:24 on November26,2009
Entry number 302653
keyword=Swing shift summary
Start with standard production running at 108 uA after finishing tagger test run.
18:00 Resetting DAQ, trying to turn of FADC readout. While doing reboots, we move to dummy target in preparation for 4 hours of dummy data taking. Turn on VDCs to 4kV in preparation for Q^2 measurement.
~18:40 Q^2 measurement on dummy target at 50 uA
~19:00 Start taking production data on Dummy
23:10 Finish dummy, move back to deuterium.
23:25 Take Q^2 measurement on deuterium
23:40 Start dueterium production data
LIST OF RUNS
Time Parity Good HRSL Events HRSR Events Notes
Run # Pairs Run # Run #
-------------- DEUTERIUM TARGET --------
16:00 14214 40.5 25759 890k 5302 790k Beam modultion turned on ~20 min. into run
17:02 14215 25760 230k 5303 650k L-HRS daq crashed at some point. stop run to re-download to make sure code disabling FADC readout is being used.
next few runs were junk, while trying to get DAQ running and while changing over to the dummy target
-------------- DUMMY TARGET -------------
~18:40 25762 ~500k 5305 ~350k Q^2 measurement
18:53 14218 46.9 25763 6M 5306 6M Dummy production
19:15 25764 1.9M 5307 1.7M Rates were too high, so adjusted prescales and started new left/right runs
19:50 14219 42.4 25765 3.5M 5308 5.5M
20:45 14220 47.3 25766 3.6M 5309 5.6M
21:40 14221 43.4 25767 3.6M 5310 5.5M
22:40 14222 26.2 25768 5311
-------------- DEUTERIUM TARGET --------
23:25 25769 500k 5312 700k Q^2 scan
23:40 14223 25770 4.2M 5313 4.9M production (underway at end of shift)
25771 5314 start new HRS runs after adjusting prescale factors