Session 5 : Exercise

Code for download: session5_start.tar.gz

Exercise 5a:

• Complete the implementation of the hit and sensitive detector classes for the Drift chamber (EDChamberHit, EDChamberSD) to account the following information when a charged track passed through the detector:
  • the time when a particle hits chamber
  • the hit global position (the position in the world volume frame)
• Hints:
  • The code for the time  is already implemented, add code for the other  quantity
  • To check if the hits are correctly accounted, add printing of the added hit data in EDChamberHit::Print()
  • The Chamber sensitive detectors are already created in the detector construction class.

Exercise 5b:

• Complete the hit and sensitive detector classes for the Drift chamber and add
  • the chamber layer number

• Complete the implementation of the sensitive detector class for the EM calorimeter (EDEmCalorimeterSD) to account the following information in the calorimeter hits (EDEmCalorimeterHit):
  • the layer number
  • the total energy deposit in the layer (= the accumulated deposit from all particles).
• Hints:
  • The class EDEmCalorimeterHit is already implemented.
  • The EmCalorimeter sensitive detector is NOT yet created in the detector construction class.
  • In difference from the Chamber hits, the Calorimeter hits are created in EDEmCalorimeterSD::Initialize() and updated in EDEmCalorimeterSD::ProcessHits().
    • See also example B4/B4c how to account the energy deposit in a calorimeter.
  • To control your implementation, add printing of the calorimeter hit collection at the end of each event (in EDEmCalorimeterSD::EndOfEvent()), see the similar code in EDChamberSD class)

Exercise 5c:

• Implement drawing Chamber hits:
  • Add and implement EDChamberHit::Draw() function.(See B2TrackerHit class in basic/B2/B2a example).
  • Activate drawing hits in vis.mac macro

Solution: session5_solution.tar.gz