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26 // -------------------------------------------
27 //
28 // Geant4 Class file
29 //
30 // File name: G4PolarizedPhotoElectricMode
31 //
32 // Author: Andreas Schaelicke & Karim L
33 //
34 // Class Description:
35 // Implementation of Photo electric effect
36 // including polarization transfer from circ
37
38 #include "G4PolarizedPhotoElectricModel.hh"
39
40 #include "G4DataVector.hh"
41 #include "G4ParticleChangeForGamma.hh"
42 #include "G4PolarizationHelper.hh"
43 #include "G4PolarizedPhotoElectricXS.hh"
44
45 //....oooOO0OOooo........oooOO0OOooo........oo
46 G4PolarizedPhotoElectricModel::G4PolarizedPhot
47 const G4ParticleDefinition*, const G4String&
48 : G4PEEffectFluoModel(nam)
49 , fCrossSectionCalculator(nullptr)
50 , fVerboseLevel(0)
51 {}
52
53 //....oooOO0OOooo........oooOO0OOooo........oo
54 G4PolarizedPhotoElectricModel::~G4PolarizedPho
55 {
56 if(fCrossSectionCalculator)
57 delete fCrossSectionCalculator;
58 }
59
60 //....oooOO0OOooo........oooOO0OOooo........oo
61 void G4PolarizedPhotoElectricModel::Initialise
62
63 {
64 G4PEEffectFluoModel::Initialise(pd, dv);
65 if(!fCrossSectionCalculator)
66 fCrossSectionCalculator = new G4PolarizedP
67 }
68
69 //....oooOO0OOooo........oooOO0OOooo........oo
70 void G4PolarizedPhotoElectricModel::SampleSeco
71 std::vector<G4DynamicParticle*>* vdp, const
72 const G4DynamicParticle* dp, G4double tmin,
73 {
74 G4PEEffectFluoModel::SampleSecondaries(vdp,
75
76 if(fVerboseLevel >= 1)
77 {
78 G4cout << "G4PolarizedPhotoElectricModel::
79 }
80
81 if(vdp && !vdp->empty())
82 {
83 G4double gamEnergy0 = dp->GetKineticEnergy
84 G4double lepEnergy1 = (*vdp)[0]->GetKineti
85 G4double sintheta =
86 dp->GetMomentumDirection().cross((*vdp)[
87 if(sintheta > 1.)
88 sintheta = 1.;
89
90 G4StokesVector beamPol = G4StokesVector(dp
91 beamPol.SetPhoton();
92
93 // determine interaction plane
94 G4ThreeVector nInteractionFrame = G4Polari
95 dp->GetMomentumDirection(), (*vdp)[0]->G
96 if(dp->GetMomentumDirection()
97 .cross((*vdp)[0]->GetMomentumDirectio
98 .mag() < 1.e-10)
99 {
100 nInteractionFrame =
101 G4PolarizationHelper::GetRandomFrame(d
102 }
103
104 // transform polarization into interaction
105 beamPol.InvRotateAz(nInteractionFrame, dp-
106
107 // calulcate polarization transfer
108 fCrossSectionCalculator->SetMaterial(
109 GetCurrentElement()->GetN(), // number
110 GetCurrentElement()->GetZ(), GetCurrentE
111 fCrossSectionCalculator->Initialize(gamEne
112 beamPo
113
114 // determine final state polarization
115 G4StokesVector lep1Pol = fCrossSectionCalc
116 lep1Pol.RotateAz(nInteractionFrame, (*vdp)
117 (*vdp)[0]->SetPolarization(lep1Pol.p1(), l
118
119 if(vdp->size() != 1)
120 {
121 G4ExceptionDescription ed;
122 ed << " WARNING " << vdp->size()
123 << " secondaries in polarized photo e
124 G4Exception("G4PolarizedPhotoElectricMod
125 JustWarning, ed);
126 }
127 }
128 }
129