------------------------------------------------------------ Date: Mon Feb 23 07:55:16 2004, Shift: 00:00-08:00 Supervisor: DO, with: Log book#15 pages 65 - 65 Shift Summary: ------------------------------------------------------------ 1. store from previous shift until 1.30am 2nd store started at 2am until 6.30am 3rd store started at ~ 7am, still going -> 7h 2. Data: MRS 40 B1050: 583k tr3 (runs 10525 -> 10538) FS 4 A1/2 : 539k tr2 run 10549 still going pedestals: non TPC: 10526 10539 TPC ped: 10529 10540 3. A few problems that could be fixed: At shift start, noticed badtrip was off. A close inspection of TPC HVs showed that TPM1 anode and drift HV were off. Mistake from previous shifters. Brought TPM1 on, traced back bad runs from previous shift (10501, 10523, 10524), changed MRS quality accordingly. Lesson to learn: look at online summary plots! Note that TPC plots are not included in the autoprint, it could have eased the search for bad runs. Second problem between stores 1 and 2: io and run servers screwed up. Then trigger counts not incremented properly. Reset all servers (io, run, monitorbeam, monitorscaler). After 2-3 times, it worked ok. Same thing between stores 2 & 3. I found out that it is important to do things in the rigth order, namely: stop io server, stop run server, start run server, start io server. Otherwise, things remain screwed, supermon cannot connect to event builder, etc. Note again that event rate shows oscillations, sometimes the DAQ pauses for 3-4 seconds. ------------------------------------------------------------ _______________________________________________ Brahms-l mailing list Brahms-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Mon Feb 23 07:56:37 2004
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