G4EmLowEPPhysics.cc

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// $Id: G4EmLowEPPhysics.cc 109526 2018-04-30 07:11:52Z gcosmo $

#include "G4EmLowEPPhysics.hh"
#include "G4ParticleDefinition.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleTable.hh"

// *** Processes and models

// gamma
#include "G4PhotoElectricEffect.hh"
#include "G4LivermorePhotoElectricModel.hh"

#include "G4ComptonScattering.hh"
#include "G4LowEPComptonModel.hh"
#include "G4LivermoreComptonModel.hh"

#include "G4GammaConversion.hh"
#include "G4LivermoreGammaConversionModel.hh"

#include "G4RayleighScattering.hh" 
#include "G4LivermoreRayleighModel.hh"

// e+-
#include "G4eMultipleScattering.hh"
#include "G4UniversalFluctuation.hh"

#include "G4eIonisation.hh"
#include "G4LivermoreIonisationModel.hh"

#include "G4eBremsstrahlung.hh"
#include "G4LivermoreBremsstrahlungModel.hh"
#include "G4Generator2BS.hh"
#include "G4BetheHeitler5DModel.hh"

// e+
#include "G4eplusAnnihilation.hh"

// mu+-
#include "G4MuMultipleScattering.hh"
#include "G4MuIonisation.hh"
#include "G4MuBremsstrahlung.hh"
#include "G4MuPairProduction.hh"
#include "G4SeltzerBergerModel.hh"

// hadrons
#include "G4hMultipleScattering.hh"
#include "G4MscStepLimitType.hh"

#include "G4hBremsstrahlung.hh"
#include "G4hPairProduction.hh"

#include "G4hIonisation.hh"
#include "G4ionIonisation.hh"
#include "G4alphaIonisation.hh"
#include "G4IonParametrisedLossModel.hh"
#include "G4LindhardSorensenIonModel.hh"
#include "G4NuclearStopping.hh"

// msc models
#include "G4UrbanMscModel.hh"
#include "G4WentzelVIModel.hh"
#include "G4LowEWentzelVIModel.hh"
#include "G4GoudsmitSaundersonMscModel.hh"
#include "G4eCoulombScatteringModel.hh"
#include "G4CoulombScattering.hh"

// interfaces
#include "G4LossTableManager.hh"
#include "G4UAtomicDeexcitation.hh"
#include "G4EmParameters.hh"

// particles

#include "G4Gamma.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4MuonPlus.hh"
#include "G4MuonMinus.hh"
#include "G4PionPlus.hh"
#include "G4PionMinus.hh"
#include "G4KaonPlus.hh"
#include "G4KaonMinus.hh"
#include "G4Proton.hh"
#include "G4AntiProton.hh"
#include "G4Deuteron.hh"
#include "G4Triton.hh"
#include "G4He3.hh"
#include "G4Alpha.hh"
#include "G4GenericIon.hh"

//
#include "G4PhysicsListHelper.hh"
#include "G4BuilderType.hh"
#include "G4EmModelActivator.hh"

// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4EmLowEPPhysics);

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

G4EmLowEPPhysics::G4EmLowEPPhysics(G4int ver, const G4String&)
  : G4VPhysicsConstructor("G4EmLowEPPhysics"), verbose(ver)
{
  G4EmParameters* param = G4EmParameters::Instance();
  param->SetDefaults();
  param->SetVerbose(verbose);
  param->SetMinEnergy(100*eV);
  param->SetLowestElectronEnergy(100*eV);
  param->SetNumberOfBinsPerDecade(20);
  param->ActivateAngularGeneratorForIonisation(true);
  param->SetFluo(true);
  SetPhysicsType(bElectromagnetic);
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

G4EmLowEPPhysics::~G4EmLowEPPhysics()
{}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

void G4EmLowEPPhysics::ConstructParticle()
{
  // gamma
  G4Gamma::Gamma();

  // leptons
  G4Electron::Electron();
  G4Positron::Positron();
  G4MuonPlus::MuonPlus();
  G4MuonMinus::MuonMinus();

  // mesons
  G4PionPlus::PionPlusDefinition();
  G4PionMinus::PionMinusDefinition();
  G4KaonPlus::KaonPlusDefinition();
  G4KaonMinus::KaonMinusDefinition();

  // baryons
  G4Proton::Proton();
  G4AntiProton::AntiProton();

  // ions
  G4Deuteron::Deuteron();
  G4Triton::Triton();
  G4He3::He3();
  G4Alpha::Alpha();
  G4GenericIon::GenericIonDefinition();
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

void G4EmLowEPPhysics::ConstructProcess()
{
  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();

  // muon & hadron bremsstrahlung and pair production
  G4MuBremsstrahlung* mub = new G4MuBremsstrahlung();
  G4MuPairProduction* mup = new G4MuPairProduction();
  G4hBremsstrahlung* pib = new G4hBremsstrahlung();
  G4hPairProduction* pip = new G4hPairProduction();
  G4hBremsstrahlung* kb = new G4hBremsstrahlung();
  G4hPairProduction* kp = new G4hPairProduction();
  G4hBremsstrahlung* pb = new G4hBremsstrahlung();
  G4hPairProduction* pp = new G4hPairProduction();

  // muon & hadron multiple scattering
  G4MuMultipleScattering* mumsc = new G4MuMultipleScattering();
  mumsc->SetEmModel(new G4LowEWentzelVIModel());
  G4hMultipleScattering* pimsc = new G4hMultipleScattering();
  pimsc->SetEmModel(new G4LowEWentzelVIModel());
  G4hMultipleScattering* kmsc = new G4hMultipleScattering();
  kmsc->SetEmModel(new G4LowEWentzelVIModel());

  G4hMultipleScattering* hmsc = new G4hMultipleScattering();
  hmsc->SetEmModel(new G4LowEWentzelVIModel());

  // nuclear stopping
  G4NuclearStopping* ionnuc = new G4NuclearStopping();
  G4NuclearStopping* pnuc = new G4NuclearStopping();

  // Add Livermore EM Processes
  G4ParticleTable* table = G4ParticleTable::GetParticleTable();
  for(const auto& particleName : partList.PartNames()) {
    G4ParticleDefinition* particle = table->FindParticle(particleName);
    if (!particle) { continue; }
    if (particleName == "gamma") {

      // Photoelectric effect - Livermore model only
      G4PhotoElectricEffect* thePhotoElectricEffect = new G4PhotoElectricEffect();
      thePhotoElectricEffect->SetEmModel(new G4LivermorePhotoElectricModel());
      ph->RegisterProcess(thePhotoElectricEffect, particle);

      // Compton scattering - Livermore model above 20 MeV, Monarsh's model below 
      G4ComptonScattering* theComptonScattering = new G4ComptonScattering();
      theComptonScattering->SetEmModel(new G4LivermoreComptonModel());
      G4LowEPComptonModel* theLowEPComptonModel = 
  new G4LowEPComptonModel();
      theLowEPComptonModel->SetHighEnergyLimit(20*MeV);
      theComptonScattering->AddEmModel(0, theLowEPComptonModel);
      ph->RegisterProcess(theComptonScattering, particle);

      // gamma conversion - Livermore model below 80 GeV
      G4GammaConversion* theGammaConversion = new G4GammaConversion();
      theGammaConversion->SetEmModel(new G4BetheHeitler5DModel());
      ph->RegisterProcess(theGammaConversion, particle);

      // default Rayleigh scattering is Livermore
      G4RayleighScattering* theRayleigh = new G4RayleighScattering();
      ph->RegisterProcess(theRayleigh, particle);

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

      // multiple scattering
      G4eMultipleScattering* msc = new G4eMultipleScattering();
      msc->SetEmModel(new G4LowEWentzelVIModel());

      // Ionisation - Livermore should be used only for low energies
      G4eIonisation* eIoni = new G4eIonisation();
      G4LivermoreIonisationModel* theIoniLivermore = new
        G4LivermoreIonisationModel();
      theIoniLivermore->SetHighEnergyLimit(0.1*MeV); 
      eIoni->AddEmModel(0, theIoniLivermore, new G4UniversalFluctuation() );
      eIoni->SetStepFunction(0.2, 100*um); //     

      // Bremsstrahlung
      G4eBremsstrahlung* eBrem = new G4eBremsstrahlung();
      G4VEmModel* theBrem = new G4SeltzerBergerModel();
      theBrem->SetHighEnergyLimit(1*GeV);
      theBrem->SetAngularDistribution(new G4Generator2BS());
      eBrem->SetEmModel(theBrem);
 
      // register processes
      ph->RegisterProcess(msc, particle);
      ph->RegisterProcess(eIoni, particle);
      ph->RegisterProcess(eBrem, particle);

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

      // multiple scattering
      G4eMultipleScattering* msc = new G4eMultipleScattering();
      msc->SetEmModel(new G4LowEWentzelVIModel());

      // Standard ionisation 
      G4eIonisation* eIoni = new G4eIonisation();
      eIoni->SetStepFunction(0.2, 100*um);      

      // Bremsstrahlung
      G4eBremsstrahlung* eBrem = new G4eBremsstrahlung();
      G4VEmModel* theBrem = new G4SeltzerBergerModel();
      theBrem->SetHighEnergyLimit(1*GeV);
      theBrem->SetAngularDistribution(new G4Generator2BS());
      eBrem->SetEmModel(theBrem);

      // register processes
      ph->RegisterProcess(msc, particle);
      ph->RegisterProcess(eIoni, particle);
      ph->RegisterProcess(eBrem, particle);
      ph->RegisterProcess(new G4eplusAnnihilation(), particle);

    } else if (particleName == "mu+" ||
               particleName == "mu-"    ) {

      G4MuIonisation* muIoni = new G4MuIonisation();
      muIoni->SetStepFunction(0.2, 50*um);          

      ph->RegisterProcess(mumsc, particle);
      ph->RegisterProcess(muIoni, particle);
      ph->RegisterProcess(mub, particle);
      ph->RegisterProcess(mup, particle);

    } else if (particleName == "alpha" ||
               particleName == "He3" ) {
      
      G4ionIonisation* ionIoni = new G4ionIonisation();
      ionIoni->SetStepFunction(0.1, 10*um);

      ph->RegisterProcess(hmsc, particle);
      ph->RegisterProcess(ionIoni, particle);
      ph->RegisterProcess(ionnuc, particle);

    } else if (particleName == "GenericIon") {
      
      G4ionIonisation* ionIoni = new G4ionIonisation();
      G4VEmModel* mod1 = new G4IonParametrisedLossModel();
      G4VEmModel* mod2 = new G4LindhardSorensenIonModel();
      mod1->SetHighEnergyLimit(20*MeV);
      mod2->SetLowEnergyLimit(20*MeV);
      ionIoni->SetEmModel(mod1);
      ionIoni->SetEmModel(mod2);
      ionIoni->SetStepFunction(0.1, 1*um);

      ph->RegisterProcess(hmsc, particle);
      ph->RegisterProcess(ionIoni, particle);
      ph->RegisterProcess(ionnuc, particle);

    } else if (particleName == "pi+" ||
               particleName == "pi-" ) {

      G4hIonisation* hIoni = new G4hIonisation();
      hIoni->SetStepFunction(0.2, 50*um);

      ph->RegisterProcess(pimsc, particle);
      ph->RegisterProcess(hIoni, particle);
      ph->RegisterProcess(pib, particle);
      ph->RegisterProcess(pip, particle);

    } else if (particleName == "kaon+" ||
               particleName == "kaon-" ) {

      G4hIonisation* hIoni = new G4hIonisation();
      hIoni->SetStepFunction(0.2, 50*um);

      ph->RegisterProcess(kmsc, particle);
      ph->RegisterProcess(hIoni, particle);
      ph->RegisterProcess(kb, particle);
      ph->RegisterProcess(kp, particle);

    } else if (particleName == "proton" ||
         particleName == "anti_proton") {

      G4hMultipleScattering* pmsc = new G4hMultipleScattering();
      pmsc->SetEmModel(new G4LowEWentzelVIModel());
      G4hIonisation* hIoni = new G4hIonisation();
      hIoni->SetStepFunction(0.2, 50*um);

      ph->RegisterProcess(pmsc, particle);
      ph->RegisterProcess(hIoni, particle);
      ph->RegisterProcess(pb, particle);
      ph->RegisterProcess(pp, particle);
      ph->RegisterProcess(pnuc, particle);

    } else if (particleName == "B+" ||
         particleName == "B-" ||
         particleName == "D+" ||
         particleName == "D-" ||
         particleName == "Ds+" ||
         particleName == "Ds-" ||
               particleName == "anti_He3" ||
               particleName == "anti_alpha" ||
               particleName == "anti_deuteron" ||
               particleName == "anti_lambda_c+" ||
               particleName == "anti_omega-" ||
               particleName == "anti_sigma_c+" ||
               particleName == "anti_sigma_c++" ||
               particleName == "anti_sigma+" ||
               particleName == "anti_sigma-" ||
               particleName == "anti_triton" ||
               particleName == "anti_xi_c+" ||
               particleName == "anti_xi-" ||
               particleName == "deuteron" ||
         particleName == "lambda_c+" ||
               particleName == "omega-" ||
               particleName == "sigma_c+" ||
               particleName == "sigma_c++" ||
               particleName == "sigma+" ||
               particleName == "sigma-" ||
               particleName == "tau+" ||
               particleName == "tau-" ||
               particleName == "triton" ||
               particleName == "xi_c+" ||
               particleName == "xi-" ) {
      
      ph->RegisterProcess(hmsc, particle);
      ph->RegisterProcess(new G4hIonisation(), particle);
    }
  }

  // Nuclear stopping
  pnuc->SetMaxKinEnergy(MeV);
      
  // Deexcitation
  //
  G4VAtomDeexcitation* de = new G4UAtomicDeexcitation();
  G4LossTableManager::Instance()->SetAtomDeexcitation(de);

  G4EmModelActivator mact(GetPhysicsName());
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......