Log entry time 23:58:55 on April18,2004

Entry number 118526

4:00 Shift Starts
In production run 2531            1M 
16:34 start production run 2532   1M
17:28 start production run 2533   1M
18:17 start production run 2534   1M
18:20 one HV channel 1 ep Arc tripped
19:04 start production run 2535   1M
19:30 noticed the Oxygen contamination 
increased dramatically in the RICH detector.
19:56-19:57 2536   6K
19:57 start production of 2537  360K
20:32 MCC requests ten minutes. Too many trippings of the beam.
Waiting for beam.
20:41 start production run 2538  466K
2538 stopped early because of VDC HV trip 
21:07 start production run 2539   1M
22:09 start production run 2540   290K
run stopped 22:36 beam is off at 22:28
23:10 start production run 2541  175K
23:25 MCC called need to replace a control 
card for one of the magnets stopped run 2541.
23:50 beam was back for a minute and is off


During this shift the beam was stable for a while and 
then the tripping rate has increased dramatically.