Gabriele Cosmo
164 lines
5.4 KiB
C++
164 lines
5.4 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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/// \file field/field02/src/F02PrimaryGeneratorAction.cc
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/// \brief Implementation of the F02PrimaryGeneratorAction class
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//
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//
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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 "F02PrimaryGeneratorAction.hh"
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#include "F02DetectorConstruction.hh"
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#include "F02PrimaryGeneratorMessenger.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 "G4SystemOfUnits.hh"
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#include "G4PhysicalConstants.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ParticleDefinition* F02PrimaryGeneratorAction::fgPrimaryParticle = nullptr;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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F02PrimaryGeneratorAction::F02PrimaryGeneratorAction(
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F02DetectorConstruction* det)
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: fDetector(det)
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{
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G4int n_particle = 1;
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fParticleGun = new G4ParticleGun(n_particle);
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// create a messenger for this class
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fGunMessenger = new F02PrimaryGeneratorMessenger(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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fParticleGun->SetParticleDefinition(particle);
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fgPrimaryParticle = particle;
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fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
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fParticleGun->SetParticleEnergy(100.*GeV);
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fZVertex = 0. ; // -0.5*(fDetector->GetAbsorberThickness());
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fParticleGun->SetParticlePosition(G4ThreeVector(fXVertex,fYVertex,fZVertex));
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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F02PrimaryGeneratorAction::~F02PrimaryGeneratorAction()
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{
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delete fParticleGun;
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delete fGunMessenger;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void F02PrimaryGeneratorAction::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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fgPrimaryParticle = fParticleGun->GetParticleDefinition();
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G4double x0,y0,z0;
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if (fVertexDefined)
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{
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x0 = fXVertex;
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y0 = fYVertex;
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z0 = fZVertex;
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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*(fDetector->GetWorldSizeZ());
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}
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G4double r0,phi0;
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if (fRndmFlag == "on")
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{
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r0 = (fDetector->GetAbsorberRadius())*std::sqrt(G4UniformRand());
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phi0 = twopi*G4UniformRand();
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x0 = r0*std::cos(phi0);
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y0 = r0*std::sin(phi0);
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}
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fParticleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
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fParticleGun->GeneratePrimaryVertex(anEvent);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4String F02PrimaryGeneratorAction::GetPrimaryName()
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{
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return fgPrimaryParticle->GetParticleName();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void F02PrimaryGeneratorAction::SetXVertex(G4double x)
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{
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fVertexDefined = true;
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fXVertex = x;
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G4cout << " X coordinate of the primary vertex = " << fXVertex/mm <<
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" mm." << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void F02PrimaryGeneratorAction::SetYVertex(G4double y)
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{
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fVertexDefined = true;
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fYVertex = y;
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G4cout << " Y coordinate of the primary vertex = " << fYVertex/mm <<
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" mm." << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void F02PrimaryGeneratorAction::SetZVertex(G4double z)
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{
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fVertexDefined = true;
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fZVertex = z;
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G4cout << " Z coordinate of the primary vertex = " << fZVertex/mm <<
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" mm." << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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