Session 5 : Enoncé

Code for download: session5_start.tar.gz

Exercise:

• Complete 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 chamber layer number
  • the time when a particle hits chamber
  • the hit local position (the position in the chamber volume frame)
• Hints:
  • The code for the layer number is already implemented, add missing code for the other quantities
  • To check if the hits are correctly accounted, add printing of the added hit data in EDChamberHit::Print()
• 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

• Implement hit and sensitive detector classes for the EM calorimeter (EDEmCalorimeterHit, EDEmCalorimeterSD) to account the following information:
  • the layer number
  • the total energy deposit in the layer (= the accumulated deposit from all particles).

  To check 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)

• Hints:
  • See example B4/B4c how to account the energy deposit in a calorimeter
  • In difference from Chamber hits, the Calorimeter hits have to be created in EDEmCalorimeterSD::Initialize() and updated in EDEmCalorimeterSD::ProcessHits().

Solution: session5_solution.tar.gz

Exercise ++:

The exercises marked as ++ are optional; they are recommended for participants who have already some experience with Geant4 and get some time left for practicing more than the basic exercise proposed above.

• There is no complementary exercise for this session.