Import Geant4 0.0.0 source tree

2016-06-01 15:25:35 +02:00
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+// This code implementation is the intellectual property of
+// the RD44 GEANT4 collaboration.
+//
+// By copying, distributing or modifying the Program (or any work
+// based on the Program) you indicate your acceptance of this statement,
+// and all its terms.
+//
+// $Id: ExN03PrimaryGeneratorAction.cc,v 2.3 1998/10/09 15:53:49 japost Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+// 
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+#include "ExN03PrimaryGeneratorAction.hh"
+
+#include "ExN03DetectorConstruction.hh"
+#include "ExN03PrimaryGeneratorMessenger.hh"
+
+#include "G4Event.hh"
+#include "G4ParticleGun.hh"
+#include "G4ParticleTable.hh"
+#include "G4ParticleDefinition.hh"
+#include "Randomize.hh"
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+ExN03PrimaryGeneratorAction::ExN03PrimaryGeneratorAction(
+                                               ExN03DetectorConstruction* ExN03DC)
+:ExN03Detector(ExN03DC),rndmFlag("off")
+{
+  G4int n_particle = 1;
+  particleGun  = new G4ParticleGun(n_particle);
+  
+  //create a messenger for this class
+  gunMessenger = new ExN03PrimaryGeneratorMessenger(this);
+
+  // default particle kinematic
+
+  G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
+  G4String particleName;
+  G4ParticleDefinition* particle
+                    = particleTable->FindParticle(particleName="e-");
+  particleGun->SetParticleDefinition(particle);
+  particleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
+  particleGun->SetParticleEnergy(30.*MeV);
+  G4double position = -0.5*(ExN03Detector->GetWorldSizeX());
+  particleGun->SetParticlePosition(G4ThreeVector(position,0.*cm,0.*cm));
+
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+ExN03PrimaryGeneratorAction::~ExN03PrimaryGeneratorAction()
+{
+  delete particleGun;
+  delete gunMessenger;
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+void ExN03PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
+{
+  //this function is called at the begining of event
+  // 
+  G4double x0 = -0.5*(ExN03Detector->GetWorldSizeX());
+  G4double y0 = 0.*cm, z0 = 0.*cm;
+  if (rndmFlag == "on")
+     {y0 = (ExN03Detector->GetCalorSizeYZ())*(G4UniformRand()-0.5);
+      z0 = (ExN03Detector->GetCalorSizeYZ())*(G4UniformRand()-0.5);
+     } 
+  particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
+
+  particleGun->GeneratePrimaryVertex(anEvent);
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+