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Data Taking Questionnaire

The purpose of this questionnaire is to provide input to the Online group for global evaluation of the BABAR Online system in presence of backgrounds.

Give answers for 0 background and for a background unit that makes the more sense in your detector (xn TDR, % occupancy, x MHz , Mev/s, etc..)

  1. Event size

What is your event size as function of background in the FEE? . At the output of Feature Extraction?

How close are you to the max buffer size?

2.Time spent to send out data from FEE to ROM

  1. Time spent in Feature extraction
  2. Presently? How much do you think you can gain with future optimisation?

     

  3. Strategies for calibration

Will you request Beam-off calibration? Duration?

Will you need beam-on calibration? Duration? At various background levels?