Data Taking Jan 5 11

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Data Taking Jan 5 11
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Integrated Luminosity
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Weekly Summary

• Stable data taking with gt90 efficiency much of
  the time
• Downtimes
• A Level 2 upgrade rack tripped 3 times during
  data taking Sunday / Monday before the problem
  was identified and repaired (bad sensor)
• Nothing gt 1hour, but quite a few downtimes of
  20-30min
• SMT HDI's gone bad
• Level 3 DAQ SBC's requiring reboots under
  study
• Silicon Track Trigger commissioning
• NFS server overloaded Tuesday / Wednesday
• Made some debugging/monitoring tasks very slow
• Modified some easily identifiable scripts to
  reduce load, but long term improvements need to
  be implemented
• Accesses
• Short controlled access on Friday for CFT and FPD
  on Friday
• No urgent requests at the moment

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Store 3130 (Jan6-7)
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Weekly Summary cont.

• Losses and vertex position stable and within
  tolerances
• SMT number of non-functional HDI's fairly
  constant at 117 (12)
• CFT dead channels constant at 1.5
• Level 3 tracking has been modified efficiency
  unchanged with 20 increase in processing time
• Special runs
• Used end of store studies Wednesday evening to
  collect data with improved L1 track trigger
  equations
• Forward proton detector
• 10 pots have been inserted to re-establish
  operation
• Not yet regularly inserted
• Expect new luminosity constants January 19th
  will have special presentation then