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Planned Measurements

Planned Measurements

 

For each of these measurements we should have a plan/protocoll what we want to do (conditions, time, software...)

 

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    Reproduction of test beam results at FNAL:  drupal.star.bnl.gov/STAR/blog/surrow/2011/feb/02/fgt-testbeam-fnal-prototype-triple-gem-detectors

  • Cluster reconstruction, Cluster size,
  • R-Phi Correlations
  • Efficiency
  • Cluster amplitude
  • HV scans
  • Residuals
  • Dependence on

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    on inclination angle for P/Phi reconstruction

  • Noise (i.e. electronics noise of the readout). RMS of pedestals calibrated to MIP. Optimum parameters for APV in FGT. (Parameters will affect gain as well as noise, of course.) Necessity (or hopefully not) of tracking pedestals by capid.
  •  Number of timebins to use in readout, and algorithm to get pulse amplitude/time from the timebin data. Uniformity of signal shape over the detector.

  • Crosstalk

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    Rate dependence (trigger rate and signal rate).

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    .Radiation effects on the frontend electronics

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     EMI issues. (For the most part if there are any, have to be

     addressed first and independently of the rest of the testing, test

    beam or otherwise.)

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    Optimum gain setting for the FGT in consideration of the limited dynamic range of APV. What tail of large events can we afford to cut off and still make the position resolution? Conversely how much noise is affordable and still make the position resolution. Presumably get to a plot of resolution as a function of HV setting.

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    Survival of FEE to breakdown/discharges in detector