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1 //
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25 //
26 // Code developed by:
27 // S.Larsson
28 //
29 // ********************************************
30 // * *
31 // * PurgMagPrimaryGeneratorAction.cc *
32 // * *
33 // ********************************************
34 //
35 //
36
37 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
38
39 #include "PurgMagPrimaryGeneratorAction.hh"
40
41 #include "PurgMagDetectorConstruction.hh"
42
43 #include "G4SystemOfUnits.hh"
44 #include "G4UnitsTable.hh"
45 #include "G4Event.hh"
46 #include "G4ParticleGun.hh"
47 #include "G4ParticleTable.hh"
48 #include "G4ParticleDefinition.hh"
49 #include "G4Electron.hh"
50
51
52 //Print position of primaries.
53 #define POSITION 0
54
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56
57 PurgMagPrimaryGeneratorAction::PurgMagPrimaryGeneratorAction()
58 :rndmVertex(false)
59 {
60 //default kinematic
61 G4int n_particle = 1;
62 particleGun = new G4ParticleGun(n_particle);
63
64 G4ParticleDefinition* particle
65 = G4Electron::Definition();
66
67 particleGun->SetParticleDefinition(particle);
68 particleGun->SetParticleEnergy(50.*MeV);
69
70 //Momentum Direction
71 particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,-1.));
72
73 }
74
75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76
77 PurgMagPrimaryGeneratorAction::~PurgMagPrimaryGeneratorAction()
78 {
79 delete particleGun;
80 }
81
82 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
83
84 void PurgMagPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
85 {
86 //this function is called at the begining of event
87 //Start position of primaries
88 G4double z0 = 15.*cm;
89 G4double x0 = 0.*cm;
90 G4double y0 = 0.*cm;
91 particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
92 particleGun->GeneratePrimaryVertex(anEvent);
93
94 #if POSITION
95 G4cout << "\n----Particle Gun--------------------------------------------\n";
96 G4cout << "\n ---> SetParticlePosition(G4ThreeVector(x0,y0,z0)) ";
97 G4cout << "\n ---> x0 = " << x0 << " "<< G4BestUnit(x0,"Length");
98 G4cout << "\n ---> y0 = " << y0 << " "<< G4BestUnit(y0,"Length");
99 G4cout << "\n ---> z0 = " << z0 << " "<< G4BestUnit(z0,"Length");
100 G4cout << "\n-----------------------------------------------------------\n";
101 #endif
102 }
103
104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
105
106
107