------------------------------------------------------------ Date: Thu Jan 10 00:08:43 2002, Shift: 16:00-24:00 Supervisor: IGB, with: Mads Log book#12 pages 34 - 36 Shift Summary: ------------------------------------------------------------ Machine Status: No beam until 2205, since then the beam has been just fine. Achievements: Woke Flemming. Woke Ramiro. Disturbed the magnet watch. Started data taking at 2350. Detector Problems: When the beam finally was ready, I turned on the TPCs, and then started BADTRIP. BADTRIP immediately began to make its annoying beeping noise, because all of the Drift voltages (that is on all TPCs) were 0 V, rather than the requested (and somewhat more useful) -4980V. After trying to solve this, I called Flemming and woke him up, and he told me to call Ramiro, who I think I also woke up. The short story: to get the drift voltage on, I had to cycle the power on the L1458a. This only took about an hour. Then I noticed that D2 had no current. There was a problem with D2, and it was solved by the magnet guys. As I write this, things seem to be running smoothly so I will retreat and let Kris deal with this wonderfully running experiment. ------------------------------------------------------------
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