Data Quality Monitoring

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Data Quality Monitoring
DØSMT

• Eric Kajfasz (CPPMarseille)
• D0 Workshop, Beaune, June 17, 2003

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SMT Online Monitoring

• within the SMT shifters realm
• SMT realated GUIs (LV, HV, Temps )
• SMT calibrations (expert)
• smt_event_display
• displays strip level information
• smt_examine
• displays strip and cluster level information
• pdaq_examine
• displays data integrity errors and read out
  lenghts
• online_monitoring
• monitors and displays strip level information
• not directly under SMT shifters control
• vertex_examine
• cft_examine
• ...

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SMT GUIs
Checks for disabled and/or powered off HDIs
and soon will transfer this information in the
run database
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SMT Calibrations

• SMT pedestal, noise and gain measurements are
  taken using SDAQ.
• Pedestal and noise measurements are used to
  calculate the threshold per chip to be used in
  sparse read out

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smt_event_display
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smt_event_display
a busier event
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smt_event_display
problematic ladder
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smt_examine

• strip level information
• per ladder/wedge
• average pulse height
• sigma of pulse height
• occupancy vs event
• number of fired strips
• fired strips
• per chip
• pulse height vs event number
• cluster level information
• cluster charge
• first strip in cluster
• cluster width
• cluster charge vs tick number

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Smt_examine
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smt_examine
occupancy_gui

• occupancy_gui
• Occupancies/number of strips read out
• Event by event/averaged over events taken by
  smt_examine

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SMT Online Monitoring

• monitoring processes
• run in PPC in VRB crates
• send data to server on d0ol28 which makes
  histograms available through web pages
• can send significant events to the SES
• what is monitored
• strip/chips signals
• strip/chips hit counts
• occupancies
• raw data structure errors
• what can trigger Alarms
• HDIs/chips never reading out
• HDI occupancies

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SMT Online Monitoring
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SMT Online Monitoring
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SMT Online Monitoring
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SMT Online Monitoring what we need ...

• Run database
• Transfer the information about
• HDIs which are off and/or disabled
• Depletion status of the silicon sensors
• smt_examine
• include global tracking and AA SMT stand alone
  tracking (including disks) ?
• phi and z track distributions
• clusters associated to tracks (charge, position,
  width)
• detector efficiencies
• automatize distribution checks
• migrate from histoscope to root
• online_monitoring
• improve the categorization of R/O errors
• other tools
• improve pdaq_examine
• at L3
• include tick and turn checks