| Geant4 Cross Reference |
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // 27 //
28 28
29 #include "FlashPrimaryGeneratorAction.hh" 29 #include "FlashPrimaryGeneratorAction.hh"
30 #include "G4SystemOfUnits.hh" 30 #include "G4SystemOfUnits.hh"
31 31
32 #include "G4Event.hh" 32 #include "G4Event.hh"
33 #include "G4GeneralParticleSource.hh" 33 #include "G4GeneralParticleSource.hh"
34 #include "G4ParticleDefinition.hh" 34 #include "G4ParticleDefinition.hh"
35 #include "G4ParticleGun.hh" 35 #include "G4ParticleGun.hh"
36 #include "G4ParticleTable.hh" 36 #include "G4ParticleTable.hh"
37 #include "Randomize.hh" 37 #include "Randomize.hh"
38 #include "globals.hh" 38 #include "globals.hh"
39 39
40 FlashPrimaryGeneratorAction::FlashPrimaryGener 40 FlashPrimaryGeneratorAction::FlashPrimaryGeneratorAction() {
41 41
42 particleGun = new G4GeneralParticleSource(); 42 particleGun = new G4GeneralParticleSource();
43 43
44 SetDefaultPrimaryParticle(); 44 SetDefaultPrimaryParticle();
45 } 45 }
46 46
47 FlashPrimaryGeneratorAction::~FlashPrimaryGene 47 FlashPrimaryGeneratorAction::~FlashPrimaryGeneratorAction() {
48 delete particleGun; 48 delete particleGun;
49 } 49 }
50 50
51 void FlashPrimaryGeneratorAction::SetDefaultPr 51 void FlashPrimaryGeneratorAction::SetDefaultPrimaryParticle() {
52 52
53 G4ParticleTable *particleTable = G4ParticleT 53 G4ParticleTable *particleTable = G4ParticleTable::GetParticleTable();
54 G4ParticleDefinition *particle = particleTab 54 G4ParticleDefinition *particle = particleTable->FindParticle("e-");
55 particleGun->SetParticleDefinition(particle) 55 particleGun->SetParticleDefinition(particle);
56 56
57 57
58 G4double defaultX0 = -113 * cm; //the beam p << 58 G4double defaultX0 = -100 * cm; //the beam propagates in the x direction from x=-100cm
59 59
60 X0 = defaultX0; 60 X0 = defaultX0;
61 61
62 G4double defaultY0 = 0.0 * mm; 62 G4double defaultY0 = 0.0 * mm;
63 Y0 = defaultY0; 63 Y0 = defaultY0;
64 64
65 G4double defaultZ0 = 0.0 * mm; 65 G4double defaultZ0 = 0.0 * mm;
66 Z0 = defaultZ0; 66 Z0 = defaultZ0;
67 67
68 G4double defaultsigmaY = 2.5*mm; 68 G4double defaultsigmaY = 2.5*mm;
69 69
70 sigmaY = defaultsigmaY; 70 sigmaY = defaultsigmaY;
71 71
72 G4double defaultsigmaZ = 2.5*mm; 72 G4double defaultsigmaZ = 2.5*mm;
73 73
74 sigmaZ = defaultsigmaZ; 74 sigmaZ = defaultsigmaZ;
75 75
76 G4double defaultTheta = 2 * deg; << 76 G4double defaultTheta = 1.5 * deg;
77 77
78 Theta = defaultTheta; 78 Theta = defaultTheta;
79 } 79 }
80 80
81 void FlashPrimaryGeneratorAction::GeneratePrim 81 void FlashPrimaryGeneratorAction::GeneratePrimaries(G4Event *anEvent) {
82 82
83 //Energy is defined in 9MeVEF.mac and 7MeVEF 83 //Energy is defined in 9MeVEF.mac and 7MeVEF.mac for the 9 MeV and 7 MeV spectrum respectively
84 84
85 G4double x = X0;//the beam has a gaussian sh 85 G4double x = X0;//the beam has a gaussian shape
86 G4double y = Y0; 86 G4double y = Y0;
87 G4double z = Z0; 87 G4double z = Z0;
88 88
89 if (sigmaY > 0.0) { 89 if (sigmaY > 0.0) {
90 y += G4RandGauss::shoot(Y0, sigmaY); 90 y += G4RandGauss::shoot(Y0, sigmaY);
91 } 91 }
92 92
93 if (sigmaZ > 0.0) { 93 if (sigmaZ > 0.0) {
94 z += G4RandGauss::shoot(Z0, sigmaZ); 94 z += G4RandGauss::shoot(Z0, sigmaZ);
95 } 95 }
96 96
97 particleGun->GetCurrentSource()->GetPosDist( 97 particleGun->GetCurrentSource()->GetPosDist()->SetCentreCoords(G4ThreeVector(x, y, z));
98 98
99 particleGun->GetCurrentSource()->GetAngD 99 particleGun->GetCurrentSource()->GetAngDist()->SetAngDistType("beam2d"); //define angular divergence
100 particleGun->GetCurrentSource()->GetAn 100 particleGun->GetCurrentSource()->GetAngDist()->DefineAngRefAxes("angref1", G4ThreeVector( 0, 0,1.));//define reference axis for divergence
101 101
102 particleGun->GetCurrentSource()->GetAn 102 particleGun->GetCurrentSource()->GetAngDist()->SetBeamSigmaInAngX(Theta);//set planar divergence
103 particleGun->GetCurrentSource()->GetAn 103 particleGun->GetCurrentSource()->GetAngDist()->SetBeamSigmaInAngY(Theta);//set planar divergence
104 particleGun->GetCurrentSource()->GetAn 104 particleGun->GetCurrentSource()->GetAngDist()->SetParticleMomentumDirection(G4ThreeVector(1,0,0));//beam propagates in the x direction
105 105
106 particleGun->GeneratePrimaryVertex(anEvent); 106 particleGun->GeneratePrimaryVertex(anEvent);
107 } 107 }
108 108