DIRC Operations Weekly Report
Period: Saturday 2006/07/08 - Friday 2006/07/14
Oncall: Rolf Andreassen, Jerome Bequilleux
Fast Monitoring: Bradley Wogsland, Jerome Bequilleux
File location: $BFROOT/www/Detector/DIRC/WeeklyReports/report_20060701.html
Plot directory: $BFROOT/www/Detector/DIRC/WeeklyReports/Plots/report_20060623 (empty)
PEP peak lumi: 11.2*1033
(previous week: 10.2*1033)
BaBar integrated lumi: 3.98 fb-1
(previous week: 2.831 fb-1)
Run 5b PEP delivery: 62.49 fb-1
Run 5 total delivery: 124.75 fb-1 Run 5 total BaBar recorded: 120.24 fb-1 including 9.82 fb-1 off-peak data
PEP activities this week:
Saturday 24th/Sunday 25th : 2 major problems with PEP, water
pump in region 12 + SK5 power supply -> PEPII ran ~50% time during the
week-end. However, new luminosity record on Sunday (11.035*10^33)
Monday 26th : maintenance work on UPS system; problem with
inverter drive boards remaining (another maintenance needed when spere
boards will be available; hopefully it won' t disturb data
taking). Began at 10am; beams back at 10:30pm.
Tuesday 27th : UPS spare available; maintenance work
Wednesday 28th : new luminosity record at 11.24*10^33 (swing shift)
Thursday 29th : UPS work finished successfully; UPS is in
normal operation again (intervention of Jerry to disable the SOB dump valve and
prevent us from from any problem with SOB).
PEP activities planned next week :
Foreseen work opportunities (PEP down periods):
BaBar activities/issues this week:
See DIRC logbook for details
June 24th: IR2 paged Rolf because bin 11 in FX plot was too high (In
fact, just due due difficulties in injecting from PEP).
June 26th: UPS replacement. 2 problems occured:* DRC-MON did
not reboot properly (solved by Ray); * GMB status for the gaz system
showed a red zero (fixed by Matt).
June 29th: problem with HV crate 3, board #3, powering the 8
outer HV channels of sector 4. The decision was taken to replace the
board. Questions about how to deal with crate 3.
Downtime due to the DIRC: 17 minutes.
Background summary plot
- Matt out of town till July 12th
- Emmanuele is unavalable till July 18th
- Emmanuel finished his commissioner duty
- Nicolas is the new DIRC system manager (replacing Georges)