This page will contain the tasks for the TRT High Threshold Calibration with Test Pulse. Resources, progress, and methods will also be listed on this Twiki. Go to Atlas.TrtDAQ#Documentation for more general documentation. For calibrating the low threshold, see Atlas.TrtHardwareCalibration.

Plots will be placed on the website: https://bhaney.web.cern.ch/bhaney/


Importand to know:

  • Find out about the DAC/eV conversion (emailed Mitch about this).
  • While at CERN, try to do another calibration run, and if that works, then do more scans with different test pulse voltages to measure the gain of the amplifier.
  • Do Tag and Probe for muons and electrons to create efficiency vs. luminosity plots. Also plot efficiency vs. HT value.

Work towards completing calibration:

  • Plot the occ for the high threshold scan to check the distribution. i.e. find what function best fits the 50% occ point.
    • Figure out how to get numbers in occupancy rather than edge-rate.
    • Two guesses for the best-fit function are probably a straight line, or an inverse error function (like low threshold).
  • Write a script to fit the function over HT calibration scan.

Future work:

  • Scan over various test pulse values to see how/if the gain changes over different voltages due to radiation exposure.
  • Compare equalization results with particles (Narei's project) once the detector comes back online.
-- BijanHaney - 06 Mar 2014
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Topic revision: r3 - 2014-03-26 - BijanHaney
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