examples/extended/electromagnetic/TestEm4/src/PhysicsList.cc

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// $Id: PhysicsList.cc 100287 2016-10-17 08:44:33Z gcosmo $
//

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#include "PhysicsList.hh"

#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
#include "G4ParticleTypes.hh"
#include "G4ParticleTable.hh"

#include "G4SystemOfUnits.hh"

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PhysicsList::PhysicsList()
: G4VUserPhysicsList()
{
  defaultCutValue = 1.0*mm;
  SetVerboseLevel(1);
}

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PhysicsList::~PhysicsList()
{}

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void PhysicsList::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();
  G4GenericIon::GenericIonDefinition();
}

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void PhysicsList::ConstructBosons()
{
  G4Gamma::GammaDefinition();
}

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void PhysicsList::ConstructLeptons()
{
  G4Electron::ElectronDefinition();
  G4Positron::PositronDefinition();
}

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void PhysicsList::ConstructProcess()
{
  AddTransportation();
  ConstructEM();
}

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#include "G4PhysicsListHelper.hh"

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

#include "G4eMultipleScattering.hh"

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

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void PhysicsList::ConstructEM()
{
  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
  
  auto particleIterator=GetParticleIterator();
  particleIterator->reset();
  while( (*particleIterator)() ){
    G4ParticleDefinition* particle = particleIterator->value();
    G4String particleName = particle->GetParticleName();
     
    if (particleName == "gamma") {
          
      ph->RegisterProcess(new G4PhotoElectricEffect, particle);
      ph->RegisterProcess(new G4ComptonScattering,   particle);
      ph->RegisterProcess(new G4GammaConversion,     particle);
      
    } else if (particleName == "e-") {

      ph->RegisterProcess(new G4eMultipleScattering, particle);
      ph->RegisterProcess(new G4eIonisation,         particle);
      ph->RegisterProcess(new G4eBremsstrahlung,     particle);      

    } else if (particleName == "e+") {

      ph->RegisterProcess(new G4eMultipleScattering, particle);
      ph->RegisterProcess(new G4eIonisation,         particle);
      ph->RegisterProcess(new G4eBremsstrahlung,     particle);
      ph->RegisterProcess(new G4eplusAnnihilation,   particle);      
    }
  }
}

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void PhysicsList::SetCuts()
{
  if (verboseLevel >0){
    G4cout << "PhysicsList::SetCuts:";
    G4cout << "CutLength : " << defaultCutValue/mm << " (mm)" << G4endl;
  }
     
  // 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(defaultCutValue, "gamma");
  SetCutValue(defaultCutValue, "e-");
  SetCutValue(defaultCutValue, "e+");
}

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