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25 //
26 #include "G4LEPTSIonisationModel.hh"
27 #include "CLHEP/Units/PhysicalConstants.h"
28
29 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
30 G4LEPTSIonisationModel::G4LEPTSIonisationModel(const G4String& modelName)
31 : G4VLEPTSModel( modelName )
32 {
33 SetDeexcitationFlag(true);
34 fParticleChangeForGamma = nullptr;
35 theXSType = XSIonisation;
36
37 } // constructor
38
39 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
40 G4LEPTSIonisationModel::~G4LEPTSIonisationModel()
41 = default;
42
43
44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
45 void G4LEPTSIonisationModel::Initialise(const G4ParticleDefinition* aParticle,
46 const G4DataVector&)
47 {
48 Init();
49 BuildPhysicsTable( *aParticle );
50 fParticleChangeForGamma = GetParticleChangeForGamma();
51
52 }
53
54
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56 G4double G4LEPTSIonisationModel::CrossSectionPerVolume(const G4Material* mate,
57 const G4ParticleDefinition* aParticle,
58 G4double kineticEnergy,
59 G4double,
60 G4double)
61 {
62 return 1./GetMeanFreePath( mate, aParticle, kineticEnergy );
63
64 }
65
66
67 void G4LEPTSIonisationModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
68 const G4MaterialCutsCouple* mateCuts,
69 const G4DynamicParticle* aDynamicParticle,
70 G4double,
71 G4double)
72 {
73 G4double P0KinEn = aDynamicParticle->GetKineticEnergy();
74
75 G4double Edep=0;
76 G4double Energylost=0;
77 G4ThreeVector P0Dir = aDynamicParticle->GetMomentumDirection();
78
79 const G4Material* aMaterial = mateCuts->GetMaterial();
80 if(P0KinEn < theIonisPot[aMaterial]) {
81 theIonisPot[aMaterial] = P0KinEn;
82 }
83 Energylost = SampleEnergyLoss(aMaterial, theIonisPot[aMaterial], P0KinEn);
84 G4ThreeVector P1Dir = SampleNewDirection(aMaterial, P0Dir, P0KinEn/CLHEP::eV, Energylost/CLHEP::eV);
85 G4double P1KinEn = std::max(0., P0KinEn - Energylost);
86 fParticleChangeForGamma->ProposeMomentumDirection( P1Dir);
87 fParticleChangeForGamma->SetProposedKineticEnergy( P1KinEn);
88 #ifdef DEBUG_LEPTS
89 G4cout << " G4LEPTSIonisationModel::SampleSecondaries( SetProposedKineticEnergy " << P1KinEn << " " << P0KinEn << " - " << Energylost << G4endl;
90 #endif
91
92 G4double P2KinEn;
93
94 if( Energylost < theIonisPotInt[aMaterial]) { // External Ionisation
95 //- SetModelName("Ionisation");
96 Edep = theIonisPot[aMaterial];
97 P2KinEn = std::max(0.001*CLHEP::eV, (Energylost - theIonisPot[aMaterial]) );
98 }
99 else { // Auger
100 //- SetModelName("IonisAuger");
101 Edep = 35*CLHEP::eV;
102 P2KinEn = std::max(0.0, (Energylost - theIonisPotInt[aMaterial]) );
103 G4double P3KinEn = std::max(0.0, theIonisPotInt[aMaterial] - Edep);
104
105 G4ThreeVector P3Dir;
106 P3Dir.setX( G4UniformRand() );
107 P3Dir.setY( G4UniformRand() );
108 P3Dir.setZ( G4UniformRand() );
109 P3Dir /= P3Dir.mag();
110
111 auto e3 = new G4DynamicParticle(G4Electron::Electron(), P3Dir, P3KinEn);
112 fvect->push_back(e3);
113 }
114
115 fParticleChangeForGamma->ProposeLocalEnergyDeposit(Edep);
116
117 if( P2KinEn > theLowestEnergyLimit) {
118 G4double cp0 = std::sqrt(P0KinEn*(P0KinEn + 2.*CLHEP::electron_mass_c2));
119 G4double cp1 = std::sqrt(P1KinEn*(P1KinEn + 2.*CLHEP::electron_mass_c2));
120 G4ThreeVector P2Momentum = cp0*P0Dir -cp1*P1Dir;
121 G4ThreeVector P2Dir = P2Momentum / P2Momentum.mag();
122 P2Dir.rotateUz(P0Dir);
123 auto e2 = new G4DynamicParticle(G4Electron::Electron(), P2Dir, P2KinEn);
124 fvect->push_back(e2);
125 }
126
127 }
128