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25 //
26 //
27 // GEANT4 Class file
28 //
29 //
30 // File name: G4SimplePositronAtRestModel
31 //
32 // Author: Vladimir Ivanchenko
33 //
34 // Creation date: 14 May 2024
35 //
36 // -------------------------------------------
37 //
38
39 #include "G4SimplePositronAtRestModel.hh"
40 #include "G4DynamicParticle.hh"
41 #include "G4Material.hh"
42 #include "Randomize.hh"
43 #include "G4Gamma.hh"
44 #include "G4RandomDirection.hh"
45 #include "G4ThreeVector.hh"
46 #include "G4PhysicalConstants.hh"
47 #include "G4SystemOfUnits.hh"
48
49 //....oooOO0OOooo........oooOO0OOooo........oo
50
51 G4SimplePositronAtRestModel::G4SimplePositronA
52 : G4VPositronAtRestModel("Simple")
53 {}
54
55 //....oooOO0OOooo........oooOO0OOooo........oo
56
57 void G4SimplePositronAtRestModel::SampleSecond
58 std::vector<G4DynamicParticle*>&
59 G4double&, const G4Material*) con
60 {
61 G4ThreeVector dir1 = G4RandomDirection();
62 auto aGamma1 = new G4DynamicParticle(G4Gamma
63 CLHEP::electron_mass_c2);
64 G4double phi = CLHEP::twopi * G4UniformRand(
65 G4double cosphi = std::cos(phi);
66 G4double sinphi = std::sin(phi);
67 G4ThreeVector pol1(cosphi, sinphi, 0.0);
68 pol1.rotateUz(dir1);
69 aGamma1->SetPolarization(pol1);
70 secParticles.push_back(aGamma1);
71
72 G4ThreeVector dir2 = -dir1;
73 auto aGamma2 = new G4DynamicParticle(G4Gamma
74 CLHEP::electron_mass_c2);
75 G4ThreeVector pol2(-sinphi, cosphi, 0.0);
76 pol2.rotateUz(dir1);
77 aGamma2->SetPolarization(pol2);
78 secParticles.push_back(aGamma2);
79 }
80
81 //....oooOO0OOooo........oooOO0OOooo........oo
82
83 void G4SimplePositronAtRestModel::PrintGenerat
84 {
85 G4cout << "\n" << G4endl;
86 G4cout << "Simple AtRest positron 2-gamma an
87 }
88
89 //....oooOO0OOooo........oooOO0OOooo........oo
90