Geant4 Cross Reference |
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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 /// \file processes/phonon/src/G4PhononScatter 26 /// \file processes/phonon/src/G4PhononScattering.cc 27 /// \brief Implementation of the G4PhononScatt 27 /// \brief Implementation of the G4PhononScattering class 28 // 28 // 29 // 29 // 30 // 20131111 Add verbose output for MFP calcul 30 // 20131111 Add verbose output for MFP calculation 31 31 32 #include "G4PhononScattering.hh" 32 #include "G4PhononScattering.hh" 33 #include "G4LatticePhysical.hh" 33 #include "G4LatticePhysical.hh" 34 #include "G4PhononPolarization.hh" 34 #include "G4PhononPolarization.hh" 35 #include "G4PhononLong.hh" 35 #include "G4PhononLong.hh" 36 #include "G4PhononTrackMap.hh" 36 #include "G4PhononTrackMap.hh" 37 #include "G4PhononTransFast.hh" 37 #include "G4PhononTransFast.hh" 38 #include "G4PhononTransSlow.hh" 38 #include "G4PhononTransSlow.hh" 39 #include "G4PhysicalConstants.hh" 39 #include "G4PhysicalConstants.hh" 40 #include "G4RandomDirection.hh" 40 #include "G4RandomDirection.hh" 41 #include "G4Step.hh" 41 #include "G4Step.hh" 42 #include "G4SystemOfUnits.hh" 42 #include "G4SystemOfUnits.hh" 43 #include "G4VParticleChange.hh" 43 #include "G4VParticleChange.hh" 44 #include "Randomize.hh" 44 #include "Randomize.hh" 45 45 46 46 47 G4PhononScattering::G4PhononScattering(const G 47 G4PhononScattering::G4PhononScattering(const G4String& aName) 48 : G4VPhononProcess(aName) {;} 48 : G4VPhononProcess(aName) {;} 49 49 50 G4PhononScattering::~G4PhononScattering() {;} 50 G4PhononScattering::~G4PhononScattering() {;} 51 51 52 //....oooOO0OOooo........oooOO0OOooo........oo 52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 53 53 54 G4double G4PhononScattering::GetMeanFreePath(c 54 G4double G4PhononScattering::GetMeanFreePath(const G4Track& aTrack, 55 G4double /*previousStepSize*/, 55 G4double /*previousStepSize*/, 56 G4ForceCondition* condition) { 56 G4ForceCondition* condition) { 57 //Dynamical constants retrieved from Physica 57 //Dynamical constants retrieved from PhysicalLattice 58 G4double B = theLattice->GetScatteringConsta 58 G4double B = theLattice->GetScatteringConstant(); 59 G4double Eoverh = aTrack.GetKineticEnergy()/ 59 G4double Eoverh = aTrack.GetKineticEnergy()/h_Planck; 60 60 61 //Calculate mean free path 61 //Calculate mean free path 62 G4double mfp = aTrack.GetVelocity()/(Eoverh* 62 G4double mfp = aTrack.GetVelocity()/(Eoverh*Eoverh*Eoverh*Eoverh*B); 63 63 64 if (verboseLevel > 1) 64 if (verboseLevel > 1) 65 G4cout << "G4PhononScattering::GetMeanFree 65 G4cout << "G4PhononScattering::GetMeanFreePath = " << mfp << G4endl; 66 66 67 *condition = NotForced; 67 *condition = NotForced; 68 68 69 return mfp; 69 return mfp; 70 } 70 } 71 71 72 //....oooOO0OOooo........oooOO0OOooo........oo 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 73 73 74 G4VParticleChange* G4PhononScattering::PostSte 74 G4VParticleChange* G4PhononScattering::PostStepDoIt( const G4Track& aTrack, 75 const G4Step& aStep) { 75 const G4Step& aStep) { 76 G4StepPoint* postStepPoint = aStep.GetPostSt 76 G4StepPoint* postStepPoint = aStep.GetPostStepPoint(); 77 if (postStepPoint->GetStepStatus()==fGeomBou 77 if (postStepPoint->GetStepStatus()==fGeomBoundary) { 78 return G4VDiscreteProcess::PostStepDoIt(aT 78 return G4VDiscreteProcess::PostStepDoIt(aTrack,aStep); 79 } 79 } 80 80 81 //Initialize particle change 81 //Initialize particle change 82 aParticleChange.Initialize(aTrack); 82 aParticleChange.Initialize(aTrack); 83 83 84 //randomly generate a new direction and pola 84 //randomly generate a new direction and polarization state 85 G4ThreeVector newDir = G4RandomDirection(); 85 G4ThreeVector newDir = G4RandomDirection(); 86 G4int polarization = ChoosePolarization(theL 86 G4int polarization = ChoosePolarization(theLattice->GetLDOS(), 87 theLattice->GetSTDOS(), 87 theLattice->GetSTDOS(), 88 theLattice->GetFTDOS()); 88 theLattice->GetFTDOS()); 89 89 90 // Generate the new track after scattering 90 // Generate the new track after scattering 91 // FIXME: If polarization state is the same 91 // FIXME: If polarization state is the same, just step the track! 92 G4Track* sec = 92 G4Track* sec = 93 CreateSecondary(polarization, newDir, aTra 93 CreateSecondary(polarization, newDir, aTrack.GetKineticEnergy()); 94 aParticleChange.SetNumberOfSecondaries(1); 94 aParticleChange.SetNumberOfSecondaries(1); 95 aParticleChange.AddSecondary(sec); 95 aParticleChange.AddSecondary(sec); 96 96 97 // Scattered phonon replaces current track 97 // Scattered phonon replaces current track 98 aParticleChange.ProposeEnergy(0.); 98 aParticleChange.ProposeEnergy(0.); 99 aParticleChange.ProposeTrackStatus(fStopAndK 99 aParticleChange.ProposeTrackStatus(fStopAndKill); 100 100 101 return &aParticleChange; 101 return &aParticleChange; 102 } 102 } 103 103 104 //....oooOO0OOooo........oooOO0OOooo........oo 104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 105 105