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User name V. Sulkosky
Log entry time 16:03:58 on April13,2008
Entry number 231774
keyword=Day Shift Summary
April 02, 2008 Swing Shift Summary
Swing Shift Crew:
V. Sulkosky (SL), J. Udias (TO), C. Fernandez-Ramirez (3rd)
Summary
=======
08:00 Start shift with production at 2.5 uA on Loop 1 LH2.
08:58 Noticed that BPMA Y position drifted from 0.7 mm up to 1.6 mm.
Asked MCC to bring it back to 0.7 mm. This affects runs 2896,
2897 and 2898.
09:08 Beam position finally back to nominal positions.
09:42 Noticed that DT was high 90% and R0C5 was in a bad state during run
2900. Rebooted ROC5, but ROC3 then had problems. Rebooted all ROC's
and restarted RunControl.
10:15 Beam has been tripping due to Hall C at 80 uA for the past 30 mins.
13:52 Noticed high DT 94% near the end of 2918, ROC5 was rebooted and CODA restarted.
14:07 BigBite dE, E and WC HV's tripped off. Asked for beam off.
14:17 BigBite HVs restored and ask for beam back.
14:22 DAQ failed to start.
14:25 HV tripped off again.
14:37 Another HV trip, which are related to the BPMA and BPMB Y positions being
considerably off after a beam trip.
14:50 Resumed data taking.
14:58 Another HV trip.
15:07 Resumed data taking.
Left HRS Run Summary
====================
momentum = 1.007 GeV/c, theta = 12.5 degs.
Start Run Events Comments
========================================================================
08:01 2893 1.0M Production on LH2
08:13 2894 1.0M Production on LH2
08:25 2895 1.0M Production on LH2
08:38 2896 1.0M Production on LH2, BPMA Y shifted
08:52 2897 1.0M Production on LH2, BPMA Y shifted
09:04 2898 1.0M Production on LH2, BPMA Y shifted
09:16 2899 1.0M Production on LH2
09:29 2900 0.84k Production on LH2, High DT at end of run
09:54 2902 1.0M Production on LH2
10:06 2903 1.0M Production on LH2
10:20 2904 1.0M Production on LH2
10:33 2905 1.0M Production on LH2
10:49 2906 1.0M Production on LH2
11:02 2907 1.0M Production on LH2
11:16 2908 1.0M Production on LH2
11:28 2909 1.0M Production on LH2
11:41 2910 1.0M Production on LH2
11:52 2911 1.0M Production on LH2
12:06 2912 1.0M Production on LH2
12:22 2913 1.0M Production on LH2
12:36 2914 1.0M Production on LH2
12:49 2915 1.0M Production on LH2
13:02 2916 1.0M Production on LH2
13:21 2917 1.0M Production on LH2
13:33 2918 0.78k Production on LH2, High DT before the end
13:58 2919 0.76k Production on LH2, BigBite HVs tripped off.
14:50 2922 0.57k Production on LH2
15:07 2923 1.0M Production on LH2
15:23 2924 1.0M Production on LH2
15:39 2925 1.0M Production on LH2
15:57 2926 ???M Production on LH2, continue into swing
Right HRS Run Summary
=====================
momentum = 0.4735 GeV/c, theta = 105.0 deg
Start Run Events Comments
================================================================
08:01 20665 28.4k corresponds to LHRS runs 2893-2894
08:26 20666 207k corresponds to LHRS runs 2895-2908
11:28 20667 204k corresponds to LHRS runs 2909-2919
14:22 20668 ???k corresponds to LHRS runs 2922-2926, continue into swing