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RE05PrimaryGeneratorAction.cc
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26 // $Id: RE05PrimaryGeneratorAction.cc 104017 2017-05-08 07:31:29Z gcosmo $
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30 //
31 
34 
35 #include "G4Event.hh"
36 #include "G4HEPEvtInterface.hh"
37 #include "G4ParticleGun.hh"
38 #include "G4ParticleTable.hh"
39 #include "G4ParticleDefinition.hh"
40 #include "G4SystemOfUnits.hh"
41 #include "G4AutoLock.hh"
42 
43 namespace {
44  G4Mutex RE05PrimGenDestrMutex = G4MUTEX_INITIALIZER;
45  G4Mutex RE05PrimGenMutex = G4MUTEX_INITIALIZER;
46 }
47 
49 
50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 
54  fParticleGun(0),
55  fMessenger(0),
56  fUseHEPEvt(false)
57 {
58  G4AutoLock lock(&RE05PrimGenDestrMutex);
59  if(!fHEPEvt)
60  {
61  const char* filename = "pythia_event.data";
62  fHEPEvt = new G4HEPEvtInterface(filename,1);
63  }
64  lock.unlock();
65 
66  G4int n_particle = 1;
67  G4ParticleGun* particleGun = new G4ParticleGun(n_particle);
69  G4String particleName;
70  G4ParticleDefinition* particle
71  = particleTable->FindParticle(particleName="mu+");
72  particleGun->SetParticleDefinition(particle);
73  particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,1.,0.));
74  particleGun->SetParticleEnergy(100.*GeV);
75  particleGun->SetParticlePosition(G4ThreeVector(0.*cm,0.*cm,0.*cm));
76  fParticleGun = particleGun;
77 
79  fUseHEPEvt = true;
80 }
81 
82 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
83 
85 {
86  G4AutoLock lock(&RE05PrimGenDestrMutex);
87  if(fHEPEvt) { delete fHEPEvt; fHEPEvt=0; }
88  delete fParticleGun;
89  delete fMessenger;
90 }
91 
92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
93 
95 {
96  if(fUseHEPEvt)
97  {
98  G4AutoLock lock(&RE05PrimGenMutex);
100  }
101  else
102  { fParticleGun->GeneratePrimaryVertex(anEvent); }
103 }
104 
105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
CLHEP::Hep3Vector G4ThreeVector
Definition of the RE05PrimaryGeneratorAction class.
static G4ParticleTable * GetParticleTable()
virtual void GeneratePrimaryVertex(G4Event *evt)=0
void SetParticlePosition(G4ThreeVector aPosition)
Definition of the RE05PrimaryGeneratorMessenger class.
#define G4MUTEX_INITIALIZER
Definition: G4Threading.hh:88
void SetParticleDefinition(G4ParticleDefinition *aParticleDefinition)
RE05PrimaryGeneratorMessenger * fMessenger
int G4int
Definition: G4Types.hh:78
virtual void GeneratePrimaries(G4Event *anEvent)
static constexpr double cm
Definition: G4SIunits.hh:119
void SetParticleEnergy(G4double aKineticEnergy)
static constexpr double GeV
Definition: G4SIunits.hh:217
void SetParticleMomentumDirection(G4ParticleMomentum aMomentumDirection)
static G4VPrimaryGenerator * fHEPEvt
std::mutex G4Mutex
Definition: G4Threading.hh:84