Geant4  10.03.p03
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F03PrimaryGeneratorAction.cc
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30 // $Id: F03PrimaryGeneratorAction.cc 77892 2013-11-29 08:56:08Z gcosmo $
31 //
32 //
33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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35 
37 
40 
41 #include "G4Event.hh"
42 #include "G4ParticleGun.hh"
43 #include "G4ParticleTable.hh"
44 #include "G4ParticleDefinition.hh"
45 
46 #include "Randomize.hh"
47 #include "G4SystemOfUnits.hh"
48 #include "G4PhysicalConstants.hh"
49 
50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 
52 G4ParticleDefinition* F03PrimaryGeneratorAction::fgPrimaryParticle = 0;
53 
54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
55 
59  fParticleGun(0),
60  fDetector(det),
61  fGunMessenger(0),
62  fRndmFlag("off"),
63  fXVertex(0.),
64  fYVertex(0.),
65  fZVertex(0.),
66  fVertexDefined(false)
67 {
68  G4int n_particle = 1;
69  fParticleGun = new G4ParticleGun(n_particle);
70 
71  // create a messenger for this class
72  fGunMessenger = new F03PrimaryGeneratorMessenger(this);
73 
74  // default particle kinematic
75 
77  G4String particleName;
78  G4ParticleDefinition* particle
79  = particleTable->FindParticle(particleName="e-");
80  fParticleGun->SetParticleDefinition(particle);
81 
82  fgPrimaryParticle = particle;
83 
84  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,-1.));
85  fParticleGun->SetParticleEnergy(1.*GeV);
86 
87  fZVertex=fDetector->GetAbsorberZpos()-0.5*(fDetector->GetAbsorberThickness());
88  fParticleGun->SetParticlePosition(G4ThreeVector(fXVertex,fYVertex,fZVertex));
89 
90 }
91 
92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
93 
95 {
96  delete fParticleGun;
97  delete fGunMessenger;
98 }
99 
100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
101 
103 {
104  // this function is called at the begining of event
105  //
106  fgPrimaryParticle = fParticleGun->GetParticleDefinition();
107 
108  G4double x0,y0,z0;
109  if (fVertexDefined)
110  {
111  x0 = fXVertex;
112  y0 = fYVertex;
113  z0 = fZVertex;
114  }
115  else
116  {
117  x0 = 0.;
118  y0 = 0.;
119  z0 = fDetector->GetAbsorberZpos()-0.5*(fDetector->GetAbsorberThickness());
120  }
121 
122  G4double r0,phi0;
123  if (fRndmFlag == "on")
124  {
125  r0 = (fDetector->GetAbsorberRadius())*std::sqrt(G4UniformRand());
126  phi0 = twopi*G4UniformRand();
127  x0 = r0*std::cos(phi0);
128  y0 = r0*std::sin(phi0);
129  }
130 
131  fParticleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
132  fParticleGun->GeneratePrimaryVertex(anEvent);
133 }
134 
135 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
136 
138 {
139  return fgPrimaryParticle->GetParticleName();
140 }
141 
142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
143 
145 {
146  fVertexDefined = true;
147  fXVertex = x;
148  G4cout << " X coordinate of the primary vertex = " << fXVertex/mm <<
149  " mm." << G4endl;
150 }
151 
152 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
153 
155 {
156  fVertexDefined = true;
157  fYVertex = y;
158  G4cout << " Y coordinate of the primary vertex = " << fYVertex/mm <<
159  " mm." << G4endl;
160 }
161 
162 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
163 
165 {
166  fVertexDefined = true;
167  fZVertex = z;
168  G4cout << " Z coordinate of the primary vertex = " << fZVertex/mm <<
169  " mm." << G4endl;
170 }
171 
172 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static constexpr double mm
Definition: G4SIunits.hh:115
CLHEP::Hep3Vector G4ThreeVector
Definition of the F03PrimaryGeneratorAction class.
tuple x
Definition: test.py:50
Definition of the F03PrimaryGeneratorMessenger class.
void SetParticleMomentumDirection(G4ParticleMomentum aMomentumDirection)
int G4int
Definition: G4Types.hh:78
virtual void GeneratePrimaryVertex(G4Event *evt)
const G4String & GetParticleName() const
static constexpr double twopi
Definition: G4SIunits.hh:76
Definition of the F03DetectorConstruction class.
F03PrimaryGeneratorAction(F03DetectorConstruction *)
void SetParticlePosition(G4ThreeVector aPosition)
#define G4UniformRand()
Definition: Randomize.hh:97
G4GLOB_DLL std::ostream G4cout
void SetParticleEnergy(G4double aKineticEnergy)
static G4ParticleTable * GetParticleTable()
G4ParticleDefinition * GetParticleDefinition() const
static constexpr double GeV
Definition: G4SIunits.hh:217
tuple z
Definition: test.py:28
#define G4endl
Definition: G4ios.hh:61
virtual void GeneratePrimaries(G4Event *)
double G4double
Definition: G4Types.hh:76
void SetParticleDefinition(G4ParticleDefinition *aParticleDefinition)