Import Geant4 1.1.0 source tree
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// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: Em8PrimaryGeneratorAction.cc,v 1.1 2000/01/07 14:50:46 grichine Exp $
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// GEANT4 tag $Name: geant4-01-01 $
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//
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#include "Em8PrimaryGeneratorAction.hh"
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#include "Em8DetectorConstruction.hh"
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#include "Em8PrimaryGeneratorMessenger.hh"
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#include "G4Event.hh"
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#include "G4ParticleGun.hh"
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#include "G4ParticleTable.hh"
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#include "G4ParticleDefinition.hh"
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#include "Randomize.hh"
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#include "G4ios.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4String Em8PrimaryGeneratorAction::thePrimaryParticleName="proton" ;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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Em8PrimaryGeneratorAction::Em8PrimaryGeneratorAction(
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Em8DetectorConstruction* Em8DC)
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:Em8Detector(Em8DC),rndmFlag("off"),xvertex(0.),yvertex(0.),zvertex(0.),
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vertexdefined(false)
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{
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G4int n_particle = 1;
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particleGun = new G4ParticleGun(n_particle);
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//create a messenger for this class
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gunMessenger = new Em8PrimaryGeneratorMessenger(this);
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// default particle kinematic
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G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
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G4String particleName;
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G4ParticleDefinition* particle
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= particleTable->FindParticle(particleName="proton");
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particleGun->SetParticleDefinition(particle);
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thePrimaryParticleName = particle->GetParticleName() ;
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particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
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particleGun->SetParticleEnergy(100.*GeV);
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zvertex = 0.0 ; // -0.5*(Em8Detector->GetAbsorberThickness());
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particleGun->SetParticlePosition(G4ThreeVector(xvertex,yvertex,zvertex));
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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Em8PrimaryGeneratorAction::~Em8PrimaryGeneratorAction()
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{
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delete particleGun;
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delete gunMessenger;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void Em8PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
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{
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//this function is called at the begining of event
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//
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thePrimaryParticleName = particleGun->GetParticleDefinition()->
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GetParticleName() ;
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G4double x0,y0,z0 ;
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if(vertexdefined)
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{
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x0 = xvertex ;
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y0 = yvertex ;
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z0 = zvertex ;
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}
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else
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{
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x0 = 0. ;
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y0 = 0. ;
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z0 = 0. ; // -0.5*(Em8Detector->GetWorldSizeZ()) ;
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}
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G4double r0,phi0 ;
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/* ****************************************************
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if (rndmFlag == "on")
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{
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r0 = (Em8Detector->GetAbsorberRadius())*sqrt(G4UniformRand());
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phi0 = twopi*G4UniformRand();
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x0 = r0*cos(phi0);
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y0 = r0*sin(phi0);
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}
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********************************************* */
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particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
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particleGun->GeneratePrimaryVertex(anEvent);
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}
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///////////////////////////////////////////////////////////////////////
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//
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//
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G4String Em8PrimaryGeneratorAction::GetPrimaryName()
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{
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return thePrimaryParticleName ;
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}
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void Em8PrimaryGeneratorAction::Setzvertex(G4double z)
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{
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vertexdefined = true ;
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zvertex = z ;
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G4cout << " Z coordinate of the primary vertex = " << zvertex/mm <<
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" mm." << endl;
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}
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void Em8PrimaryGeneratorAction::Setxvertex(G4double x)
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{
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vertexdefined = true ;
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xvertex = x ;
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G4cout << " X coordinate of the primary vertex = " << xvertex/mm <<
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" mm." << endl;
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}
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void Em8PrimaryGeneratorAction::Setyvertex(G4double y)
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{
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vertexdefined = true ;
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yvertex = y ;
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G4cout << " Y coordinate of the primary vertex = " << yvertex/mm <<
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" mm." << endl;
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}
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