Geant4 Cross Reference |
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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 /// \file medical/electronScattering/src/Prima 26 /// \file medical/electronScattering/src/PrimaryGeneratorAction.cc 27 /// \brief Implementation of the PrimaryGenera 27 /// \brief Implementation of the PrimaryGeneratorAction class 28 // 28 // 29 // 29 // 30 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 31 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 32 32 33 #include "PrimaryGeneratorAction.hh" 33 #include "PrimaryGeneratorAction.hh" 34 34 35 #include "DetectorConstruction.hh" 35 #include "DetectorConstruction.hh" 36 #include "PrimaryGeneratorMessenger.hh" 36 #include "PrimaryGeneratorMessenger.hh" 37 37 38 #include "G4Event.hh" 38 #include "G4Event.hh" 39 #include "G4ParticleDefinition.hh" << 40 #include "G4ParticleTable.hh" 39 #include "G4ParticleTable.hh" >> 40 #include "G4ParticleDefinition.hh" 41 #include "G4SystemOfUnits.hh" 41 #include "G4SystemOfUnits.hh" 42 #include "Randomize.hh" 42 #include "Randomize.hh" 43 43 44 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 45 45 46 PrimaryGeneratorAction::PrimaryGeneratorAction 46 PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* DC) 47 : fParticleGun(0), fDetector(DC), fGunMessen << 47 :fParticleGun(0), fDetector(DC), fGunMessenger(0) 48 { 48 { 49 fParticleGun = new G4ParticleGun(1); << 49 fParticleGun = new G4ParticleGun(1); 50 50 51 G4ParticleTable* particleTable = G4ParticleT 51 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); 52 G4ParticleDefinition* particle = particleTab 52 G4ParticleDefinition* particle = particleTable->FindParticle("e-"); 53 fParticleGun->SetParticleDefinition(particle 53 fParticleGun->SetParticleDefinition(particle); 54 fParticleGun->SetParticleEnergy(20. * MeV); << 54 fParticleGun->SetParticleEnergy(20.*MeV); 55 fZ0 = -0.5 * (fDetector->GetThicknessWorld() << 55 fZ0 = -0.5*(fDetector->GetThicknessWorld()); 56 fParticleGun->SetParticlePosition(G4ThreeVec << 56 fParticleGun->SetParticlePosition(G4ThreeVector(0*cm, 0*cm, fZ0)); 57 fParticleGun->SetParticleMomentumDirection(G << 57 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.)); 58 << 58 59 G4double radiusWorld = fDetector->GetRadiusW 59 G4double radiusWorld = fDetector->GetRadiusWorld(); 60 fR2World = radiusWorld * radiusWorld; << 60 fR2World = radiusWorld*radiusWorld; 61 fRndmBeam = 420 * um; << 61 fRndmBeam = 420*um; 62 << 62 63 // create a messenger for this class << 63 //create a messenger for this class 64 fGunMessenger = new PrimaryGeneratorMessenge 64 fGunMessenger = new PrimaryGeneratorMessenger(this); 65 } 65 } 66 66 67 //....oooOO0OOooo........oooOO0OOooo........oo 67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 68 68 69 PrimaryGeneratorAction::~PrimaryGeneratorActio 69 PrimaryGeneratorAction::~PrimaryGeneratorAction() 70 { 70 { 71 delete fParticleGun; 71 delete fParticleGun; 72 delete fGunMessenger; << 72 delete fGunMessenger; 73 } 73 } 74 74 75 //....oooOO0OOooo........oooOO0OOooo........oo 75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 76 76 77 void PrimaryGeneratorAction::GeneratePrimaries 77 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) 78 { 78 { 79 // this function is called at the begining o << 79 //this function is called at the begining of event 80 // 80 // 81 // randomize beam, if requested. << 81 //randomize beam, if requested. 82 if (fRndmBeam > 0.) { 82 if (fRndmBeam > 0.) { 83 G4double s_proj = fRndmBeam / std::sqrt(2. << 83 G4double s_proj = fRndmBeam/std::sqrt(2.); 84 G4double x0, y0; << 84 G4double x0, y0; 85 do { 85 do { 86 x0 = G4RandGauss::shoot(0., s_proj); << 86 x0 = G4RandGauss::shoot(0.,s_proj); 87 y0 = G4RandGauss::shoot(0., s_proj); << 87 y0 = G4RandGauss::shoot(0.,s_proj); 88 } while ((x0 * x0 + y0 * y0) > fR2World); << 88 } while ((x0*x0 + y0*y0) > fR2World); 89 fParticleGun->SetParticlePosition(G4ThreeV << 89 fParticleGun->SetParticlePosition(G4ThreeVector(x0,y0,fZ0)); 90 } 90 } 91 << 91 92 fParticleGun->GeneratePrimaryVertex(anEvent) << 92 fParticleGun->GeneratePrimaryVertex(anEvent); 93 } 93 } 94 94 95 //....oooOO0OOooo........oooOO0OOooo........oo 95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 96 96