geant4/examples/novice/N06/src/ExN06PhysicsList.cc

// This code implementation is the intellectual property of
// the RD44 GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//

#include "G4ios.hh"
#include <iomanip.h>

#include "globals.hh"
#include "ExN06PhysicsList.hh"

#include "G4ParticleDefinition.hh"
#include "G4ParticleTypes.hh"
#include "G4ParticleWithCuts.hh"
#include "G4ParticleTable.hh"

#include "G4Material.hh"
#include "G4MaterialTable.hh"

#include "G4ProcessManager.hh"
#include "G4ProcessVector.hh"

ExN06PhysicsList::ExN06PhysicsList() :  G4VUserPhysicsList() {}

ExN06PhysicsList::~ExN06PhysicsList() {}

void ExN06PhysicsList::ConstructParticle()
{
  // In this method, static member functions should be called
  // for all particles which you want to use.
  // This ensures that objects of these particle types will be
  // created in the program.

  ConstructBosons();
  ConstructLeptons();
  ConstructMesons();
  ConstructBarions();

}

void ExN06PhysicsList::ConstructBosons()
{
  // pseudo-particles
  G4Geantino::GeantinoDefinition();
  G4ChargedGeantino::ChargedGeantinoDefinition();

  // gamma
  G4Gamma::GammaDefinition();

  // optical photon
  G4OpticalPhoton::OpticalPhotonDefinition();
}

void ExN06PhysicsList::ConstructLeptons()
{
  // leptons
  G4Electron::ElectronDefinition();
  G4Positron::PositronDefinition();
  G4NeutrinoE::NeutrinoEDefinition();
  G4AntiNeutrinoE::AntiNeutrinoEDefinition();
  G4MuonPlus::MuonPlusDefinition();
  G4MuonMinus::MuonMinusDefinition();
  G4NeutrinoMu::NeutrinoMuDefinition();
  G4AntiNeutrinoMu::AntiNeutrinoMuDefinition();
}

void ExN06PhysicsList::ConstructMesons()
{
 //  mesons
  G4PionPlus::PionPlusDefinition();
  G4PionMinus::PionMinusDefinition();
  G4PionZero::PionZeroDefinition();
}

void ExN06PhysicsList::ConstructBarions()
{
//  barions
  G4Proton::ProtonDefinition();
  G4AntiProton::AntiProtonDefinition();
  G4Neutron::NeutronDefinition();
  G4AntiNeutron::AntiNeutronDefinition();
}

void ExN06PhysicsList::ConstructProcess()
{
  AddTransportation();
  ConstructGeneral();
  ConstructEM();
  ConstructOp();
}

#include "G4Decay.hh"

void ExN06PhysicsList::ConstructGeneral()
{
  G4Decay* theDecayProcess = new G4Decay();
  theParticleIterator->reset();
  while( (*theParticleIterator)() ){
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    if (theDecayProcess->IsApplicable(*particle)) {
      pmanager->AddDiscreteProcess(theDecayProcess);
    }
  }
}

#include "G4ComptonScattering.hh"
#include "G4GammaConversion.hh"
#include "G4PhotoElectricEffect.hh"

#include "G4MultipleScattering.hh"

#include "G4eIonisation.hh"
#include "G4eBremsstrahlung.hh"
#include "G4eplusAnnihilation.hh"

#include "G4MuIonisation.hh"
#include "G4MuBremsstrahlung.hh"
#include "G4MuPairProduction.hh"

#include "G4hIonisation.hh"

void ExN06PhysicsList::ConstructEM()
{
  theParticleIterator->reset();
  while( (*theParticleIterator)() ){
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    G4String particleName = particle->GetParticleName();

    if (particleName == "gamma") {
    // gamma
      // Construct processes for gamma
//      pmanager->AddDiscreteProcess(new G4GammaConversion());
//      pmanager->AddDiscreteProcess(new G4ComptonScattering());
//      pmanager->AddDiscreteProcess(new G4PhotoElectricEffect());

    } else if (particleName == "e-") {
    //electron
      // Construct processes for electron
      pmanager->AddProcess(new G4MultipleScattering(),-1,1,1);
      pmanager->AddProcess(new G4eIonisation(),-1,2,2);
      pmanager->AddProcess(new G4eBremsstrahlung(),-1,-1,3);

    } else if (particleName == "e+") {
    //positron
      // Construct processes for positron
      pmanager->AddProcess(new G4MultipleScattering(),-1,1,1);
      pmanager->AddProcess(new G4eIonisation(),-1,2,2);
      pmanager->AddProcess(new G4eBremsstrahlung(),-1,-1,3);
      pmanager->AddProcess(new G4eplusAnnihilation(),0,-1,4);

    } else if( particleName == "mu+" ||
               particleName == "mu-"    ) {
    //muon
     // Construct processes for muon
     pmanager->AddProcess(new G4MultipleScattering(),-1,1,1);
     pmanager->AddProcess(new G4MuIonisation(),-1,2,2);
     pmanager->AddProcess(new G4MuBremsstrahlung(),-1,-1,3);
     pmanager->AddProcess(new G4MuPairProduction(),-1,-1,4);

    } else {
      if ((particle->GetPDGCharge() != 0.0) &&
          (particle->GetParticleName() != "chargedgeantino")) {
     // all others charged particles except geantino
       pmanager->AddProcess(new G4MultipleScattering(),-1,1,1);
       pmanager->AddProcess(new G4hIonisation(),-1,2,2);
     }
    }
  }
}

#include "G4Cerenkov.hh"
#include "G4OpAbsorption.hh"
#include "G4OpRayleigh.hh"
#include "G4OpBoundaryProcess.hh"

void ExN06PhysicsList::ConstructOp()
{
  G4Cerenkov*   theCerenkovProcess = new G4Cerenkov("Cerenkov");
  G4OpAbsorption* theAbsorptionProcess = new G4OpAbsorption();
  G4OpRayleigh*   theRayleighScatteringProcess = new G4OpRayleigh();
  G4OpBoundaryProcess* theBoundaryProcess = new G4OpBoundaryProcess();

//  theCerenkovProcess->DumpPhysicsTable();
//  theAbsorptionProcess->DumpPhysicsTable();
//  theRayleighScatteringProcess->DumpPhysicsTable();

  theCerenkovProcess->SetVerboseLevel(1);
  theAbsorptionProcess->SetVerboseLevel(1);
  theRayleighScatteringProcess->SetVerboseLevel(1);
  theBoundaryProcess->SetVerboseLevel(1);

  G4int MaxNumPhotons = 300;

  theCerenkovProcess->SetTrackSecondariesFirst(true);
  theCerenkovProcess->SetMaxNumPhotonsPerStep(MaxNumPhotons);

  G4OpticalSurfaceModel themodel = unified;
  theBoundaryProcess->SetModel(themodel);

  theParticleIterator->reset();
  while( (*theParticleIterator)() ){
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    G4String particleName = particle->GetParticleName();
    if (theCerenkovProcess->IsApplicable(*particle)) {
      pmanager->AddContinuousProcess(theCerenkovProcess);
    }
    if (particleName == "opticalphoton") {
      G4cout << " AddDiscreteProcess to OpticalPhoton " << endl;
      pmanager->AddDiscreteProcess(theAbsorptionProcess);
      pmanager->AddDiscreteProcess(theRayleighScatteringProcess);
      pmanager->AddDiscreteProcess(theBoundaryProcess);
    }
  }
}

void ExN06PhysicsList::SetCuts(G4double cut)
{
  if (verboseLevel >0){
    G4cout << "ExN06PhysicsList::SetCuts:";
    G4cout << "CutLength : " << cut/mm << " (mm)" << endl;
  }

  // set cut values for gamma at first and for e- second and next for e+,
  // because some processes for e+/e- need cut values for gamma

  SetCutValue(cut, "gamma");
  SetCutValue(cut, "e-");
  SetCutValue(cut, "e+");

  // set cut values for proton

  SetCutValue(cut, "proton");
  SetCutValue(cut, "anti_proton");

  SetCutValueForOthers(GetDefaultCutValue());

  if (verboseLevel>1) {
    DumpCutValuesTable();
  }
}