Set particles production thresholds (cuts) via Geant4 command in run.mac
.
setCut*
commands in /run
directory.Define a region in EM calorimeter with production thresholds different from the default ones.
With use of G4AnalysisManager
(see example B4/B4d ):
Create & fill histogram
Define a 1D histogram for the energy deposited per event for each calorimeter layer
Implement filling of histograms in the EmCalorimeterSD::EndOfEvent()
function.
Hint: To access the i-th calorimeter hit from fHitsCollection:
EmCalorimeterHit* hit = (EmCalorimeterHit*)(*fHitsCollection)[i];
Activate plotting of histograms using the UI command(s)
Create & fill ntuples
Define two ntuples representing the tracker chamber hits in each tracker chamber (one in the first arm and one in the second arm)
Implement filling of the ntuples in ChamberSD::ProcessHits();
fNtupleId
, in the ChamberSD
class which allows to associate each tracker chamber with one of created ntuplesInspect generated file in ROOT with the ROOT browser
The command to call Root:
root
root
available on the classroom computers you need to define the environment using the provided script:
source /nfsapp/physics/root.bash -n