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25 // 25 //
26 /// \file eventgenerator/particleGun/src/Prima <<
27 /// \brief Implementation of the PrimaryGenera <<
28 // 26 //
29 // << 27 // $Id: PrimaryGeneratorAction1.cc,v 1.2 2010-07-16 07:37:48 maire Exp $
30 // << 28 // GEANT4 tag $Name: not supported by cvs2svn $
31 //....oooOO0OOooo........oooOO0OOooo........oo << 29 //
32 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33 32
34 #include "PrimaryGeneratorAction1.hh" 33 #include "PrimaryGeneratorAction1.hh"
35 <<
36 #include "PrimaryGeneratorAction.hh" 34 #include "PrimaryGeneratorAction.hh"
37 35
38 #include "G4Event.hh" 36 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh" <<
40 #include "G4ParticleGun.hh" 37 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh" 38 #include "G4ParticleTable.hh"
42 #include "G4PhysicalConstants.hh" << 39 #include "G4ParticleDefinition.hh"
43 #include "G4SystemOfUnits.hh" <<
44 #include "Randomize.hh" 40 #include "Randomize.hh"
45 41
46 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47 43
48 PrimaryGeneratorAction1::PrimaryGeneratorActio << 44 PrimaryGeneratorAction1::PrimaryGeneratorAction1(G4ParticleGun* gun)
>> 45 : particleGun(gun)
>> 46 { }
>> 47
>> 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 49
>> 50 PrimaryGeneratorAction1::~PrimaryGeneratorAction1()
>> 51 { }
49 52
50 //....oooOO0OOooo........oooOO0OOooo........oo 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 54
52 void PrimaryGeneratorAction1::GeneratePrimarie 55 void PrimaryGeneratorAction1::GeneratePrimaries(G4Event* anEvent)
53 { 56 {
54 const G4double r = 2 * mm; << 57 const G4double r = 2*mm;
55 const G4double zmax = 8 * mm; << 58 const G4double zmax = 8*mm;
56 << 59
57 // vertex 1 uniform on cylinder << 60 //vertex 1 uniform on cylinder
58 // 61 //
59 G4double alpha = twopi * G4UniformRand(); / << 62 G4double alpha = twopi*G4UniformRand(); //alpha uniform in (0, 2*pi)
60 G4double ux = std::cos(alpha); 63 G4double ux = std::cos(alpha);
61 G4double uy = std::sin(alpha); 64 G4double uy = std::sin(alpha);
62 G4double z = zmax * (2 * G4UniformRand() - 1 << 65 G4double z = zmax*(2*G4UniformRand() - 1); //z uniform in (-zmax, +zmax)
63 << 66
64 fParticleGun->SetParticlePosition(G4ThreeVec << 67 particleGun->SetParticlePosition(G4ThreeVector(r*ux,r*uy,z));
65 fParticleGun->SetParticleMomentumDirection(G << 68 particleGun->SetParticleMomentumDirection(G4ThreeVector(ux,uy,0));
66 fParticleGun->SetParticleEnergy(1 * MeV); << 69 particleGun->SetParticleEnergy(1*MeV);
67 fParticleGun->GeneratePrimaryVertex(anEvent) << 70 particleGun->GeneratePrimaryVertex(anEvent);
68 << 71
69 // vertex 2 at opposite << 72 //vertex 2 at opposite
70 // 73 //
71 alpha += pi; 74 alpha += pi;
72 ux = std::cos(alpha); 75 ux = std::cos(alpha);
73 uy = std::sin(alpha); << 76 uy = std::sin(alpha);
74 fParticleGun->SetParticlePosition(G4ThreeVec << 77 particleGun->SetParticlePosition(G4ThreeVector(r*ux,r*uy,z));
75 << 78
76 // particle 2 at vertex 2 << 79 //particle 2 at vertex 2
77 // 80 //
78 const G4double dalpha = 10 * deg; << 81 const G4double dalpha = 10*deg;
79 ux = std::cos(alpha + dalpha); 82 ux = std::cos(alpha + dalpha);
80 uy = std::sin(alpha + dalpha); << 83 uy = std::sin(alpha + dalpha);
81 << 84
82 fParticleGun->SetParticleMomentumDirection(G << 85 particleGun->SetParticleMomentumDirection(G4ThreeVector(ux,uy,0));
83 fParticleGun->SetParticleEnergy(1 * keV); << 86 particleGun->SetParticleEnergy(1*keV);
84 fParticleGun->GeneratePrimaryVertex(anEvent) << 87 particleGun->GeneratePrimaryVertex(anEvent);
85 << 88
86 // particle 3 at vertex 3 (same as vertex 2) << 89 //particle 3 at vertex 2
87 // 90 //
88 ux = std::cos(alpha - dalpha); 91 ux = std::cos(alpha - dalpha);
89 uy = std::sin(alpha - dalpha); << 92 uy = std::sin(alpha - dalpha);
90 << 93
91 fParticleGun->SetParticleMomentumDirection(G << 94 particleGun->SetParticleMomentumDirection(G4ThreeVector(ux,uy,0));
92 fParticleGun->SetParticleEnergy(1 * GeV); << 95 particleGun->SetParticleEnergy(1*GeV);
93 fParticleGun->GeneratePrimaryVertex(anEvent) << 96 particleGun->GeneratePrimaryVertex(anEvent);
94 <<
95 // randomize time zero of anEvent <<
96 // <<
97 G4double tmin = 0 * s, tmax = 10 * s; <<
98 G4double t0 = tmin + (tmax - tmin) * G4Unifo <<
99 G4PrimaryVertex* aVertex = anEvent->GetPrima <<
100 while (aVertex) { <<
101 aVertex->SetT0(t0); <<
102 aVertex = aVertex->GetNext(); <<
103 } <<
104 } 97 }
105 98
106 //....oooOO0OOooo........oooOO0OOooo........oo 99 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
107 100