DIRC Operations Weekly Report

Period: Wednesday 2007/8/01 - Wednesday 2007/8/08


Oncall: Justine Serrano
Fast Monitoring: Rolf Andreassen, Justine Serrano

Contents:

    PEP Activities     BaBar Activities     DIRC activities     Backgrounds     Scheduled activities     Pending Work     Links

Luminosities this week

PEP peak lumi: ~1.05 x 1034 (last week: ~1.02 x 1034)

PEP delivery: 3.66 fb-1 (last week: 4.64 fb-1)

BaBar integrated lumi:3.21 fb-1 (last week: 4.5 fb-1)

Run 6 total delivery: 72.45 fb-1

Run 6 total BaBar recorded: 69.66 fb-1 total, including 4.18 fb-1 off-peak data

PEP activities/issues this week

  • Aug 1: Install helium lines to look for an IR2 vacuum leak.
  • Aug 2: No beam during most of the day to fix a water leak in the Linac.
  • Aug 3: starting to have problem with the RF station 4-3.

    BaBar activities/issues this week

    DIRC activities/issues this week

  • Aug 2: One christmas tree showed up in sector 5 during cosmic data taking. We turn off channel 6 in sector 5 (Set V0 and V1 at 110V) to avoid trip. There was another in sector 11, but it disappeared after turn off and on the high voltage (channels 5 and 10).
  • Aug 2: Masked out a noisy channel in sector 10.
  • Aug 6: Neutron counters' power supply tripped again, Matt replaced the power supply.

    See DIRC logbook for details

    Lumi and Background this week

    Scheduled activities

    Pending Work