Gabriele Cosmo
120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4Track.cc,v 1.2.6.1 1999/12/07 20:53:03 gunter Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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//
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//
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//---------------------------------------------------------------
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//
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// G4Track.cc
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//
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// Contact:
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// Questions and comments to this code should be sent to
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// Katsuya Amako (e-mail: Katsuya.Amako@kek.jp)
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// Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
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//
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//---------------------------------------------------------------
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#include "G4Track.hh"
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G4Allocator<G4Track> aTrackAllocator;
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///////////////////////////////////////////////////////////
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G4Track::G4Track(G4DynamicParticle* apValueDynamicParticle,
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G4double aValueTime,
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const G4ThreeVector& aValuePosition)
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///////////////////////////////////////////////////////////
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{
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fpDynamicParticle = apValueDynamicParticle;
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fCurrentStepNumber = 0;
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fGlobalTime = aValueTime;
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fLocalTime = 0.;
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fTrackLength = 0.;
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fPosition = aValuePosition;
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fpTouchable = 0;
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fpNextTouchable = 0;
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fpLVAtVertex = 0;
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fpCreatorProcess = 0;
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fTrackStatus = fAlive;
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fBelowThreshold = false;
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fGoodForTracking = false;
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fWeight = 1.0;
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}
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//////////////////
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G4Track::G4Track()
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//////////////////
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{
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fCurrentStepNumber = 0;
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fGlobalTime = 0.;
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fLocalTime = 0.;
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fTrackLength = 0.;
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fParentID = 0;
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fTrackID = 0;
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fpTouchable = 0;
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fpNextTouchable = 0;
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fpDynamicParticle = 0;
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fpLVAtVertex = 0;
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fpCreatorProcess = 0;
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fTrackStatus = fAlive;
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fBelowThreshold = false;
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fGoodForTracking = false;
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fWeight = 1.0;
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}
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///////////////////
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G4Track::~G4Track()
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///////////////////
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{
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delete fpDynamicParticle;
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}
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///////////////////
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G4double G4Track::GetVelocity() const
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///////////////////
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{
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G4double velocity ;
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G4double mass = fpDynamicParticle->GetMass();
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// mass less particle
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if( mass == 0. ){
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velocity = c_light ;
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G4String name = fpDynamicParticle->GetDefinition()->GetParticleName();
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// special case for photons
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if(( name=="gamma")||(name=="opticalphoton")){
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G4Material*
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mat=fpTouchable->GetVolume()->GetLogicalVolume()->GetMaterial();
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if(mat->GetMaterialPropertiesTable() != 0){
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if(mat->GetMaterialPropertiesTable()->GetProperty("RINDEX") != 0 ){
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// light velocity = c/reflection-index
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velocity /=
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mat->GetMaterialPropertiesTable()->GetProperty("RINDEX")->
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GetMinProperty() ;
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}
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}
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}
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} else {
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G4double T = fpDynamicParticle->GetKineticEnergy();
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velocity = c_light*sqrt(T*(T+2.*mass))/(T+mass) ;
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}
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return velocity ;
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}
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