DIRC Operations Weekly Report
Period: Wednesday 2007/7/11 - Wednesday 2007/7/18
Oncall: Justine Serrano
Fast Monitoring: Justine Serrano, Jose Benitez
Luminosities this week
PEP peak lumi: ~9.7 x 1033
(last week: ~1.02 x 1034)
PEP delivery: 3.19 fb-1
(last weeks: 3.92 fb-1)
BaBar integrated lumi:3.12 fb-1
(last weeks: 3.8 fb-1)
Run 6 total delivery: 61.48 fb-1
Run 6 total BaBar recorded: 59.14 fb-1 total, including 4.18 fb-1 off-peak data
PEP activities/issues this week
07/10: ROD to fix a vacuum leak. After that PEP did scrubbing during several shifts.
07/16: 1 hour and half access to fix a magnet in IR8.
07/17: No abort gap test. Unsuccesful because they didn't manage to have stable beam while filling the gap.
BaBar activities/issues this week
07/17: several problem with DCH chiller. Karl replaced the filter and the pump.
DIRC activities/issues this week
DIRC backgrounds have been good after the vacuum leak was fixed by PEP.
Integrated scaler saturation seen recently was due to a small gate in Jerry's
electronics. Jerry is investigating.
07/13: update the white board of the gaz system and update the DQM and pilot instructions.
Jochen Kaminski testing his new FEX software.
See DIRC logbook for details
Lumi and Background this week
- Replace four DFBs with goups of 8 dead or flaky channels:
- sector 0, DFB 0.
- 2 in sector 1, DFB 1 and DFB 13.
- sector 3, DFB 6.
- sector 8, DFB 0.
- Replace air filters on Wienner crates.
- Investigate the crate of sector 8.
Justine, Jose and Rolf rotating backup & on-call commissioning duties.