PDT calibration database design

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PDT calibration database design
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PDT calibration database tables
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MDT calibration database design
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MDT calibration database tables
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• MSC Constant Specifications
• MSC_T0_ADJUST The channel-wise T0 adjustment,
  accounts for channel to channel differences in
  the MSC analog front-end electronics. A pulse is
  injected at the near end of each wire and read
  out. These times should all be the same. It will
  be calibrated as necessary, e.g. when electronics
  replaced.
• MSC_ADC_PEDThe scintillator ADC pedestal is
  defined as the ADC readout value when there is no
  signal in the scintillator. The MSC_ADC_PED is
  determined in the DSP. The DSP reads out each
  channel during non-collision "beam crossings"
  between fills and extracts the mean of a
  distribution of ADC values for each channel.
• MSC_ADC_LED The scintillator ADC LED measurement
  is defined as the pedestal-subtracted ADC readout
  value for a LED scintillator pulse. It will be
  determined in the DSP during regular calibrations
  with the LED pulser system and will be calibrated
  once per fill (once per day).
• MSC_GAIN The scintillator ADC Gain is defined
  as the conversion factor between ADC readout bins
  and units of charge. It will be calibrated after
  each shutdown.
• MSC_T0_OFFSET The channel-wise T0 offset,
  accounts for the offset between the MSC_T0_ADJUST
  adjusted times and the beam crossing time. This
  offset includes particle flight time to the MSC
  and any cable and electronics delays and offsets.
  It is derived from data taken during dedicated
  calibration collision running and will be
  calibrated after each shutdown.

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MSC calibration database design
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MSC calibration database tables