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 eventgenerator/particleGun/src/Prima 26 /// \file eventgenerator/particleGun/src/PrimaryGeneratorAction3.cc 27 /// \brief Implementation of the PrimaryGenera 27 /// \brief Implementation of the PrimaryGeneratorAction3 class 28 // 28 // 29 // 29 // 30 // << 30 // $Id: PrimaryGeneratorAction3.cc 68024 2013-03-13 13:42:01Z gcosmo $ 31 //....oooOO0OOooo........oooOO0OOooo........oo << 31 // 32 //....oooOO0OOooo........oooOO0OOooo........oo 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... >> 33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 33 34 34 #include "PrimaryGeneratorAction3.hh" 35 #include "PrimaryGeneratorAction3.hh" 35 << 36 #include "PrimaryGeneratorAction.hh" 36 #include "PrimaryGeneratorAction.hh" 37 37 38 #include "G4Event.hh" 38 #include "G4Event.hh" 39 #include "G4ParticleDefinition.hh" << 40 #include "G4ParticleGun.hh" 39 #include "G4ParticleGun.hh" 41 #include "G4ParticleTable.hh" 40 #include "G4ParticleTable.hh" >> 41 #include "G4ParticleDefinition.hh" 42 #include "G4PhysicalConstants.hh" 42 #include "G4PhysicalConstants.hh" 43 #include "G4SystemOfUnits.hh" 43 #include "G4SystemOfUnits.hh" 44 #include "Randomize.hh" 44 #include "Randomize.hh" 45 45 46 //....oooOO0OOooo........oooOO0OOooo........oo 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 47 47 48 PrimaryGeneratorAction3::PrimaryGeneratorActio << 48 PrimaryGeneratorAction3::PrimaryGeneratorAction3(G4ParticleGun* gun) 49 { << 49 : fParticleGun(gun) >> 50 { 50 // direction 51 // direction 51 // 52 // 52 G4double theta = 90 * deg, phi = 45 * deg; << 53 G4double theta = 90*deg, phi = 45*deg; 53 fNewUz = G4ThreeVector(std::sin(theta) * std << 54 fNewUz = G4ThreeVector(std::sin(theta)*std::cos(phi), >> 55 std::sin(theta)*std::sin(phi), 54 std::cos(theta)); 56 std::cos(theta)); 55 << 57 56 fAlphaMax = 15 * deg; << 58 fAlphaMax = 15*deg; 57 } 59 } 58 60 59 //....oooOO0OOooo........oooOO0OOooo........oo 61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 60 62 >> 63 PrimaryGeneratorAction3::~PrimaryGeneratorAction3() >> 64 { } >> 65 >> 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... >> 67 61 void PrimaryGeneratorAction3::GeneratePrimarie 68 void PrimaryGeneratorAction3::GeneratePrimaries(G4Event* anEvent) 62 { 69 { 63 // particle direction uniform around fNewUz << 70 //particle direction uniform around fNewUz axis 64 // 71 // 65 // 1- in World frame << 72 //1- in World frame 66 // cosAlpha uniform in [cos(0), cos(fAlphaMa << 73 //cosAlpha uniform in [cos(0), cos(fAlphaMax)] 67 G4double cosAlpha = 1. - G4UniformRand() * ( << 74 G4double cosAlpha = 1. - G4UniformRand()*(1.- std::cos(fAlphaMax)); 68 G4double sinAlpha = std::sqrt(1. - cosAlpha << 75 G4double sinAlpha = std::sqrt(1. - cosAlpha*cosAlpha); 69 G4double psi = twopi * G4UniformRand(); // << 76 G4double psi = twopi*G4UniformRand(); //psi uniform in [0, 2*pi] 70 G4ThreeVector dir(sinAlpha * std::cos(psi), << 77 G4ThreeVector dir(sinAlpha*std::cos(psi),sinAlpha*std::sin(psi),cosAlpha); 71 << 78 72 // 2- rotate dir (rotateUz transforms uz t << 79 //2- rotate dir (rotateUz transforms uz to fNewUz) 73 dir.rotateUz(fNewUz); << 80 dir.rotateUz(fNewUz); 74 81 75 fParticleGun->SetParticleMomentumDirection(d 82 fParticleGun->SetParticleMomentumDirection(dir); 76 << 83 77 // set energy << 84 //set energy 78 // 85 // 79 fParticleGun->SetParticleEnergy(1 * MeV); << 86 fParticleGun->SetParticleEnergy(1*MeV); 80 87 81 // create vertex << 88 //create vertex 82 // << 89 // 83 fParticleGun->GeneratePrimaryVertex(anEvent) 90 fParticleGun->GeneratePrimaryVertex(anEvent); 84 } 91 } 85 92 86 //....oooOO0OOooo........oooOO0OOooo........oo 93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 87 94