Geant4  10.03.p02
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
RE04PrimaryGeneratorAction.cc
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
28 //
29 // $Id: $
30 //
32 
33 #include "Randomize.hh"
34 #include "G4Event.hh"
35 #include "G4ParticleGun.hh"
36 #include "G4ParticleTable.hh"
37 #include "G4ParticleDefinition.hh"
38 #include "G4SystemOfUnits.hh"
39 
40 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43  fParticleGun(0)
44 {
45  G4int n_particle = 1;
46  fParticleGun = new G4ParticleGun(n_particle);
47 
48  // default particle kinematic
50  G4String particleName;
51  G4ParticleDefinition* particle
52  = particleTable->FindParticle(particleName="mu-");
53  fParticleGun->SetParticleDefinition(particle);
54  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
55  fParticleGun->SetParticlePosition(G4ThreeVector(-75.*cm,0.,0.));
56  fParticleGun->SetParticleEnergy(10.*GeV);
57 }
58 
59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
61 {
62  delete fParticleGun;
63 }
64 
65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67 {
68  G4double y = 96.0*cm*(G4UniformRand()-0.5);
69  fParticleGun->SetParticlePosition(G4ThreeVector(-75.*cm,y,0.));
70  fParticleGun->GeneratePrimaryVertex(anEvent);
71 }
72 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
CLHEP::Hep3Vector G4ThreeVector
Definition of the RE04PrimaryGeneratorAction class.
void SetParticleMomentumDirection(G4ParticleMomentum aMomentumDirection)
int G4int
Definition: G4Types.hh:78
virtual void GeneratePrimaryVertex(G4Event *evt)
void SetParticlePosition(G4ThreeVector aPosition)
#define G4UniformRand()
Definition: Randomize.hh:97
static constexpr double cm
Definition: G4SIunits.hh:119
void SetParticleEnergy(G4double aKineticEnergy)
static G4ParticleTable * GetParticleTable()
static constexpr double GeV
Definition: G4SIunits.hh:217
virtual void GeneratePrimaries(G4Event *)
double G4double
Definition: G4Types.hh:76
void SetParticleDefinition(G4ParticleDefinition *aParticleDefinition)