| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 /// \file OpNovice/src/OpNovicePrimaryGenerato
27 /// \brief Implementation of the OpNovicePrima
28 //
29 //
30 //
31 //....oooOO0OOooo........oooOO0OOooo........oo
32 //....oooOO0OOooo........oooOO0OOooo........oo
33
34 #include "OpNovicePrimaryGeneratorAction.hh"
35
36 #include "OpNovicePrimaryGeneratorMessenger.hh
37
38 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh"
40 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "Randomize.hh"
44
45 //....oooOO0OOooo........oooOO0OOooo........oo
46 OpNovicePrimaryGeneratorAction::OpNovicePrimar
47 : G4VUserPrimaryGeneratorAction(), fParticle
48 {
49 G4int n_particle = 1;
50 fParticleGun = new G4ParticleGun(n_particle)
51 // create a messenger for this class
52 fGunMessenger = new OpNovicePrimaryGenerator
53 // default kinematic
54 //
55 G4ParticleTable* particleTable = G4ParticleT
56 G4ParticleDefinition* particle = particleTab
57
58 fParticleGun->SetParticleDefinition(particle
59 fParticleGun->SetParticleTime(0.0 * ns);
60 fParticleGun->SetParticlePosition(G4ThreeVec
61 fParticleGun->SetParticleMomentumDirection(G
62 fParticleGun->SetParticleEnergy(500.0 * keV)
63 }
64
65 //....oooOO0OOooo........oooOO0OOooo........oo
66 OpNovicePrimaryGeneratorAction::~OpNovicePrima
67 {
68 delete fParticleGun;
69 delete fGunMessenger;
70 }
71
72 //....oooOO0OOooo........oooOO0OOooo........oo
73 void OpNovicePrimaryGeneratorAction::GenerateP
74 {
75 fParticleGun->GeneratePrimaryVertex(anEvent)
76 }
77
78 //....oooOO0OOooo........oooOO0OOooo........oo
79 void OpNovicePrimaryGeneratorAction::SetOptPho
80 {
81 G4double angle = G4UniformRand() * 360.0 * d
82 SetOptPhotonPolar(angle);
83 }
84
85 //....oooOO0OOooo........oooOO0OOooo........oo
86 void OpNovicePrimaryGeneratorAction::SetOptPho
87 {
88 if (fParticleGun->GetParticleDefinition()->G
89 G4ExceptionDescription ed;
90 ed << "Warning: the particleGun is not an
91 G4Exception("OpNovicePrimaryGeneratorActio
92 ed);
93 return;
94 }
95
96 G4ThreeVector normal(1., 0., 0.);
97 G4ThreeVector kphoton = fParticleGun->GetPar
98 G4ThreeVector product = normal.cross(kphoton
99 G4double modul2 = product * product;
100
101 G4ThreeVector e_perpend(0., 0., 1.);
102 if (modul2 > 0.) e_perpend = (1. / std::sqrt
103 G4ThreeVector e_paralle = e_perpend.cross(kp
104
105 G4ThreeVector polar = std::cos(angle) * e_pa
106 fParticleGun->SetParticlePolarization(polar)
107 }
108 //....oooOO0OOooo........oooOO0OOooo........oo
109