|Message: what is the differences of these getting energy function||Not Logged In (login)|
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Dear Geant4 experts, I have tried some functions to get particl's energy.As follows: G4double energy1 = fStep->GetPreStepPoint()->GetTotalEnergy(); G4double energy2 = fStep->GetPostStepPoint()->GetTotalEnergy(); G4double energy3 = fTrack->GetTotalEnergy(); G4double energy4 = fTrack->GetVertexKineticEnergy(); G4double energy5 = fTrack->GetKineticEnergy();
And I found that energy1=energy2=energy3=(energy5+restmass),for energy4, it is usually different from others. I have two questions: 1) I once thought that energy got from prestepPoint should be larger than energy from postpoint, why they are same; 2) what is the mean of the GetVertexKineticEnergy()?
Thanks very much!
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