| 1 | // |
|---|
| 2 | // ******************************************************************** |
|---|
| 3 | // * License and Disclaimer * |
|---|
| 4 | // * * |
|---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
|---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
|---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
|---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
|---|
| 9 | // * include a list of copyright holders. * |
|---|
| 10 | // * * |
|---|
| 11 | // * Neither the authors of this software system, nor their employing * |
|---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
|---|
| 13 | // * work make any representation or warranty, express or implied, * |
|---|
| 14 | // * regarding this software system or assume any liability for its * |
|---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
|---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
|---|
| 17 | // * * |
|---|
| 18 | // * This code implementation is the result of the scientific and * |
|---|
| 19 | // * technical work of the GEANT4 collaboration. * |
|---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
|---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
|---|
| 22 | // * use in resulting scientific publications, and indicate your * |
|---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
|---|
| 24 | // ******************************************************************** |
|---|
| 25 | // |
|---|
| 26 | // $Id: PrimaryGeneratorAction.cc,v 1.7 2006/06/29 16:53:00 gunter Exp $ |
|---|
| 27 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
|---|
| 28 | // |
|---|
| 29 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 31 | |
|---|
| 32 | #include "PrimaryGeneratorAction.hh" |
|---|
| 33 | |
|---|
| 34 | #include "PrimaryGeneratorMessenger.hh" |
|---|
| 35 | #include "DetectorConstruction.hh" |
|---|
| 36 | #include "HistoManager.hh" |
|---|
| 37 | |
|---|
| 38 | #include "G4Event.hh" |
|---|
| 39 | #include "G4ParticleGun.hh" |
|---|
| 40 | #include "G4ParticleTable.hh" |
|---|
| 41 | #include "G4ParticleDefinition.hh" |
|---|
| 42 | #include "Randomize.hh" |
|---|
| 43 | |
|---|
| 44 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 45 | |
|---|
| 46 | PrimaryGeneratorAction::PrimaryGeneratorAction(DetectorConstruction* det, |
|---|
| 47 | HistoManager* hist) |
|---|
| 48 | :Detector(det),histoManager(hist) |
|---|
| 49 | { |
|---|
| 50 | G4int n_particle = 1; |
|---|
| 51 | particleGun = new G4ParticleGun(n_particle); |
|---|
| 52 | SetDefaultKinematic(); |
|---|
| 53 | rndmBeam = 0.; |
|---|
| 54 | |
|---|
| 55 | //create a messenger for this class |
|---|
| 56 | gunMessenger = new PrimaryGeneratorMessenger(this); |
|---|
| 57 | } |
|---|
| 58 | |
|---|
| 59 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 60 | |
|---|
| 61 | PrimaryGeneratorAction::~PrimaryGeneratorAction() |
|---|
| 62 | { |
|---|
| 63 | delete particleGun; |
|---|
| 64 | delete gunMessenger; |
|---|
| 65 | } |
|---|
| 66 | |
|---|
| 67 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 68 | |
|---|
| 69 | void PrimaryGeneratorAction::SetDefaultKinematic() |
|---|
| 70 | { |
|---|
| 71 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
|---|
| 72 | G4String particleName; |
|---|
| 73 | G4ParticleDefinition* particle |
|---|
| 74 | = particleTable->FindParticle(particleName="e-"); |
|---|
| 75 | particleGun->SetParticleDefinition(particle); |
|---|
| 76 | particleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.)); |
|---|
| 77 | particleGun->SetParticleEnergy(1.*GeV); |
|---|
| 78 | G4double position = -0.5*(Detector->GetWorldSizeX()); |
|---|
| 79 | particleGun->SetParticlePosition(G4ThreeVector(position,0.*cm,0.*cm)); |
|---|
| 80 | } |
|---|
| 81 | |
|---|
| 82 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 83 | |
|---|
| 84 | void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
|---|
| 85 | { |
|---|
| 86 | //this function is called at the begining of event |
|---|
| 87 | // |
|---|
| 88 | //randomize the beam, if requested. |
|---|
| 89 | if (rndmBeam > 0.) |
|---|
| 90 | { |
|---|
| 91 | G4ThreeVector oldPosition = particleGun->GetParticlePosition(); |
|---|
| 92 | G4double rbeam = 0.5*(Detector->GetCalorSizeYZ())*rndmBeam; |
|---|
| 93 | G4double x0 = oldPosition.x(); |
|---|
| 94 | G4double y0 = oldPosition.y() + (2*G4UniformRand()-1.)*rbeam; |
|---|
| 95 | G4double z0 = oldPosition.z() + (2*G4UniformRand()-1.)*rbeam; |
|---|
| 96 | particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0)); |
|---|
| 97 | particleGun->GeneratePrimaryVertex(anEvent); |
|---|
| 98 | particleGun->SetParticlePosition(oldPosition); |
|---|
| 99 | } |
|---|
| 100 | else particleGun->GeneratePrimaryVertex(anEvent); |
|---|
| 101 | } |
|---|
| 102 | |
|---|
| 103 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
|---|
| 104 | |
|---|
