------------------------------------------------------------ Date: Thu Jan 10 08:17:46 2002, Shift: 00:00-08:00 Supervisor: KH, with: Log book#12 pages 36 - 39 Shift Summary: ------------------------------------------------------------ Machine Status: Beam during most of the night. A store had started at 22:50 and continued until 5:10 at which point PHENIX and us voted to dump. Beam was stored and cogged again at 7:00. Achievements: Run trig 3 trig 6 6394 210k 98k MRS 40 4B; FS 12 1/8B; ended at 5:10 Changed FS field to 1/4B before beam came back Started run 6397 at 7:00 when beam came back with L-1, R-1 Inelastic triggers removed from the main trigger. Rates were reasonable. But DAQ crashed at 7:30 with a run error which I didn't understand. I managed to get it back by restarting IoServer and RunServer. After investigation, I decided it was probably the result a degraded beam quality. The singles Inel rate L and R is about 300k! Currents in T3 were very high. They are slowly coming down as is the rate. At time of writing, they have come back down to reasonable levels, so I will stop run 6397 and start a new one for the next shift. ------------------------------------------------------------
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