Polarized Helium-3 Experiments

Pol He-3 Analysis Resources

Calibrations

Basic Template for each Detector/Calibration Procedure

For each detector subsystem we would like to capture/document the following information:

• A list of all (or at least the most useful) ROOT tree variables associated with this detector
• Description of the calibration algorithm (That is, how is it supposed to work -- what is the logic behind it?)
• Files involved in the calibration
  • THc* or THa* modules that are needed/used
  • Database files that will be modified
  • Scripts that will be used
  • Dependencies of this calibration
    • Reference time cuts should be verified
    • FADC 'hit selection' timing cuts should be verified
    • Calorimeter calibration relies on good optics calibration for momentum determination
    • If tight timing cuts are used, then the hodoscopes may need to be calibrated first, etc
    • ... etc
• Provide a step-by-step "Howto" that shows
  • What commands/scripts need to be run, in what order.
  • How do you verify that various cuts (ref times, trigger types, etc) are correct before you run the script(s)?
  • What do you look for to verify that the code has run correctly after you run the script(s)?