| Geant4 Cross Reference |
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25 //
26 //
27
28 #include "G4DNAGeneralIonIonisationModel.hh"
29 #include "G4DNARuddIonisationExtendedModel.hh"
30 #include "G4PhysicalConstants.hh"
31 #include "G4SystemOfUnits.hh"
32 #include "G4EmParameters.hh"
33 #include "G4GenericIon.hh"
34
35 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
36
37 G4DNAGeneralIonIonisationModel::G4DNAGeneralIonIonisationModel(
38 const G4ParticleDefinition*, const G4String& nam)
39 : G4VEmModel(nam)
40 {
41 fRuddIonisation = new G4DNARuddIonisationExtendedModel();
42 }
43
44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
45
46 void G4DNAGeneralIonIonisationModel::Initialise(const G4ParticleDefinition* part,
47 const G4DataVector& v)
48 {
49 if (part != G4GenericIon::GenericIon()) {
50 G4ExceptionDescription ed;
51 ed << "Wrong particle type <" << part->GetParticleName()
52 << "> - only G4GenericIon is allowed";
53 G4Exception("G4DNAGeneralIonIonisationModel::Initialise(...)",
54 "em2001", FatalException, ed);
55 }
56
57 // stationary model and tracking cut may be defined between runs
58 auto param = G4EmParameters::Instance();
59 fLowestEnergy = param->LowestMuHadEnergy();
60
61 // this pointer should be defined once before initialisation of
62 // concrete models
63 if (nullptr == fParticleChangeForGamma) {
64 fParticleChangeForGamma = GetParticleChangeForGamma();
65
66 // should be set once for each model
67 fRuddIonisation->SetParticleChange(fParticleChangeForGamma);
68 }
69
70 // initialisation of concrete models - put extra model here
71 fRuddIonisation->Initialise(part, v);
72 }
73
74 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
75
76 void G4DNAGeneralIonIonisationModel::StartTracking(G4Track* track)
77 {
78 fDynParticle = track->GetDynamicParticle();
79 }
80
81 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
82
83 G4double G4DNAGeneralIonIonisationModel::CrossSectionPerVolume(const G4Material* mat,
84 const G4ParticleDefinition* p,
85 G4double ekin,
86 G4double, G4double)
87 {
88 // apply tracking cut
89 if (ekin <= fLowestEnergy) { return DBL_MAX; }
90
91 // select model
92 fCurrentModel = fRuddIonisation;
93
94 // G4int Z = GetAtomicNumber();
95 // G4int Q = G4lrint(fDynParticle->GetCharge()/CLHEP::eplus);
96
97 // compute concrete cross section
98 return fCurrentModel->CrossSectionPerVolume(mat, p, ekin);
99 }
100
101 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
102
103 void G4DNAGeneralIonIonisationModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
104 const G4MaterialCutsCouple* couple,
105 const G4DynamicParticle* dp,
106 G4double, G4double)
107 {
108 G4double ekin = dp->GetKineticEnergy();
109
110 // tracking cut
111 if (ekin <= fLowestEnergy) {
112 fParticleChangeForGamma->SetProposedKineticEnergy(0.);
113 fParticleChangeForGamma->ProposeTrackStatus(fStopButAlive);
114 fParticleChangeForGamma->ProposeLocalEnergyDeposit(ekin);
115 return;
116 }
117
118 // sample secondaries by the selected model
119 fCurrentModel->SampleSecondaries(fvect, couple, dp);
120 }
121
122 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
123