DIRC Operations Weekly Report
Period: Wednesday 2007/4/24 - Wednesday 2007/5/02
Oncall: Jose Benitez
Fast Monitoring: Jose Benitez, Alejandro Perez
PEP peak lumi: ~7.0 x 1033
(previous week: ~6.0 x 1033)
BaBar integrated lumi: 1.8 fb-1
(previous week:2.13 fb-1)
Run 6 PEP delivery: 1.8 fb-1
(previous week: 2.19 fb-1)
Run 6 total delivery: ~32.4 - ~30.61 fb-1
Run 6 total BaBar recorded: 31.2 - 29.38 fb-1
including 0 fb-1 off-peak data
PEP activities this week:
4/26:ROD due to vacuum problem, chamber sealed last time still leaking. Leak could not be found. Chamber to be replaced.
5/1 : Chamber replacement started.
Problem: Q2 failed to ramp down, Q2 melted and water hose broke when the cooling wast turned off.
Consequences: All systems powered off. Much water spilled in DIRC tunnel, flowed mostly backward but also forward. Q2 will be replaced => ROD will take ~1week longer.
BaBar activities/issues this week:
5/1: Water spill got to EMC electronics.
5/3: DCH and DIRC turned back on succesfully.