Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 26 #include "PrimaryGeneratorAction.hh" 27 28 #include "ChemistryWorld.hh" 29 #include "DetectorConstruction.hh" 30 31 #include "G4Electron.hh" 32 #include "G4Event.hh" 33 #include "G4ParticleDefinition.hh" 34 #include "G4ParticleGun.hh" 35 #include "G4ParticleTable.hh" 36 #include "G4SystemOfUnits.hh" 37 38 //....oooOO0OOooo........oooOO0OOooo........oo 39 40 PrimaryGeneratorAction::PrimaryGeneratorAction 41 : G4VUserPrimaryGeneratorAction(), fpDetecto 42 { 43 fpMessenger = std::make_unique<PrimaryGenera 44 fParticleGun = std::make_unique<G4SinglePart 45 G4ParticleDefinition* particle = G4Electron: 46 fParticleGun->SetParticleDefinition(particle 47 fParticleGun->SetNumberOfParticles(1000000); 48 49 auto pPosDist = fParticleGun->GetPosDist(); 50 pPosDist->SetPosDisType("Plane"); 51 pPosDist->SetPosDisShape("Square"); 52 auto faceSiez = fpDetector->GetChemistryWorl 53 pPosDist->SetCentreCoords(G4ThreeVector(0, 0 54 pPosDist->SetHalfX(faceSiez); 55 pPosDist->SetHalfY(faceSiez); 56 57 auto pAngleDist = fParticleGun->GetAngDist() 58 pAngleDist->SetParticleMomentumDirection(G4T 59 60 auto pEnergyDis = fParticleGun->GetEneDist() 61 pEnergyDis->SetMonoEnergy(0.9999 * MeV); 62 } 63 64 //....oooOO0OOooo........oooOO0OOooo........oo 65 66 void PrimaryGeneratorAction::GeneratePrimaries 67 { 68 G4ParticleDefinition* particle = fParticleGu 69 auto NumberOfParticlesToBeGenerated = fParti 70 auto pPosDist = fParticleGun->GetPosDist(); 71 auto pAngleDist = fParticleGun->GetAngDist() 72 auto pEnDist = fParticleGun->GetEneDist(); 73 auto rnd = fParticleGun->GetBiasRndm(); 74 auto charge = particle->GetPDGCharge(); 75 76 for (G4int i = 0; i < NumberOfParticlesToBeG 77 auto angle = pAngleDist->GenerateOne(); 78 auto energy = pEnDist->GenerateOne(particl 79 auto pos = pPosDist->GenerateOne(); 80 auto mass = particle->GetPDGMass(); 81 auto p = new G4PrimaryParticle(particle); 82 auto vertex = new G4PrimaryVertex(pos, 0); 83 p->SetKineticEnergy(energy); 84 p->SetMass(mass); 85 p->SetMomentumDirection(angle); 86 p->SetCharge(charge); 87 p->SetPolarization(0., 0., 0.); 88 89 G4double weight = pEnDist->GetWeight() * r 90 p->SetWeight(weight); 91 vertex->SetPrimary(p); 92 anEvent->AddPrimaryVertex(vertex); 93 } 94 } 95 96 //....oooOO0OOooo........oooOO0OOooo........oo 97