| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: MyExPrimaryGeneratorAction.cc,v 1.1 2006/11/28 15:19:42 tnikitin Exp $
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| 28 | // GEANT4 tag $Name: HEAD $
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| 29 | //
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| 30 |
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| 31 | #include "ExN01PrimaryGeneratorAction.hh"
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| 32 |
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| 33 | #include "G4Event.hh"
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| 34 | #include "G4ParticleGun.hh"
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| 35 | #include "G4ParticleTable.hh"
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| 36 | #include "G4ParticleDefinition.hh"
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| 37 | #include "globals.hh"
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| 38 |
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| 39 | ExN01PrimaryGeneratorAction::ExN01PrimaryGeneratorAction()
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| 40 | {
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| 41 | G4int n_particle = 1;
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| 42 | particleGun = new G4ParticleGun(n_particle);
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| 43 |
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| 44 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
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| 45 | G4String particleName;
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| 46 | particleGun->SetParticleDefinition(particleTable->FindParticle(particleName="e-"));
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| 47 | ////First Test =No Intersection
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| 48 | G4double momen=(0.3*2.*0.70001)*GeV;
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| 49 | G4double kinEnergy=std::sqrt(momen*momen+0.000510999*0.000510999*GeV);
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| 50 | particleGun->SetParticleEnergy(kinEnergy);
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| 51 | particleGun->SetParticlePosition(G4ThreeVector(-70.0001*cm, 0.0*cm,-0.0*cm));
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| 52 | /////Second Test=Intersection But Almost Not !!!Very slow step but not in Propagator
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| 53 | //G4double momen=(0.3*2.*0.50001)*GeV;
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| 54 | // G4double kinEnergy=std::sqrt(momen*momen+0.000510999*0.000510999*GeV);
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| 55 | // particleGun->SetParticleEnergy(kinEnergy);
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| 56 | // particleGun->SetParticlePosition(G4ThreeVector(-70.0001*cm, 0.0*cm,-0.0*cm));
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| 57 | /////Third Test=No Intersection But One "Difficult" Point
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| 58 | //Test simple
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| 59 | // G4double momen=(0.3*2.*0.20001)*GeV;
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| 60 | // G4double kinEnergy=std::sqrt(momen*momen+0.000510999*0.000510999*GeV);
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| 61 | // particleGun->SetParticleEnergy(kinEnergy);
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| 62 | // particleGun->SetParticlePosition(G4ThreeVector(-70.0001*cm, 0.0*cm,-0.0*cm));
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| 63 |
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| 64 | G4cout<<"Energy="<<kinEnergy/GeV<<" Radius="<<momen/0.6/mm<<G4endl;
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| 65 |
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| 66 | }
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| 67 |
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| 68 | ExN01PrimaryGeneratorAction::~ExN01PrimaryGeneratorAction()
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| 69 | {
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| 70 | delete particleGun;
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| 71 | }
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| 72 |
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| 73 | void ExN01PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
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| 74 | {
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| 75 | G4int i = anEvent->GetEventID() % 3;
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| 76 | G4ThreeVector v(0.0,1.0,0.01);
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| 77 | // switch(i)
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| 78 | //{
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| 79 | // case 0:
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| 80 | // break;
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| 81 | // case 1:
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| 82 | // v.setY(0.1);
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| 83 | // break;
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| 84 | // case 2:
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| 85 | // v.setZ(0.1);
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| 86 | // break;
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| 87 | //}
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| 88 | particleGun->SetParticleMomentumDirection(v);
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| 89 | particleGun->GeneratePrimaryVertex(anEvent);
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| 90 | }
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| 91 |
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| 92 |
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