72 if ( ( step->GetPostStepPoint()->GetStepStatus() == fGeomBoundary ) &&
73 ( track->GetCurrentStepNumber() != 1 ) )
78 G4double trial = G4UniformRand();
83 G4double pz = track->GetMomentum().z();
92 G4double initialWeight = track->GetWeight();
111 clone->SetWeight( weightOfTrack );
131 G4double initialWeight = track->GetWeight();
139 G4double random = G4UniformRand();
143 if ( random > survivingProbability )