G4EmLivermorePhysics.cc

Go to the documentation of this file.

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
// $Id: G4EmLivermorePhysics.cc 68750 2013-04-05 10:19:04Z gcosmo $

#include "G4EmLivermorePhysics.hh"
#include "G4ParticleDefinition.hh"
#include "G4SystemOfUnits.hh"

// *** Processes and models

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

#include "G4ComptonScattering.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"

// e+
#include "G4eplusAnnihilation.hh"

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

#include "G4MuBremsstrahlungModel.hh"
#include "G4MuPairProductionModel.hh"
#include "G4hBremsstrahlungModel.hh"
#include "G4hPairProductionModel.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 "G4NuclearStopping.hh"

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

// interfaces
#include "G4LossTableManager.hh"
#include "G4EmProcessOptions.hh"
#include "G4UAtomicDeexcitation.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"

// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4EmLivermorePhysics);


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

G4EmLivermorePhysics::G4EmLivermorePhysics(G4int ver)
  : G4VPhysicsConstructor("G4EmLivermorePhysics"), verbose(ver)
{
  G4LossTableManager::Instance();
  SetPhysicsType(bElectromagnetic);
}

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

G4EmLivermorePhysics::G4EmLivermorePhysics(G4int ver, const G4String&)
  : G4VPhysicsConstructor("G4EmLivermorePhysics"), verbose(ver)
{
  G4LossTableManager::Instance();
  SetPhysicsType(bElectromagnetic);
}

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

G4EmLivermorePhysics::~G4EmLivermorePhysics()
{}

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

void G4EmLivermorePhysics::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 G4EmLivermorePhysics::ConstructProcess()
{
  if(verbose > 1) {
    G4cout << "### " << GetPhysicsName() << " Construct Processes " << G4endl;
  }
  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->AddEmModel(0, new G4WentzelVIModel());
  G4hMultipleScattering* pimsc = new G4hMultipleScattering();
  pimsc->AddEmModel(0, new G4WentzelVIModel());
  G4hMultipleScattering* kmsc = new G4hMultipleScattering();
  kmsc->AddEmModel(0, new G4WentzelVIModel());
  G4hMultipleScattering* pmsc = new G4hMultipleScattering();
  pmsc->AddEmModel(0, new G4WentzelVIModel());
  G4hMultipleScattering* hmsc = new G4hMultipleScattering("ionmsc");

  // high energy limit for e+- scattering models
  G4double highEnergyLimit = 100*MeV;

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

  // Add Livermore EM Processes
  aParticleIterator->reset();

  while( (*aParticleIterator)() ){
  
    G4ParticleDefinition* particle = aParticleIterator->value();
    G4String particleName = particle->GetParticleName();

    //Applicability range for Livermore models
    //for higher energies, the Standard models are used   
    G4double LivermoreHighEnergyLimit = GeV;

    if (particleName == "gamma") {

      // Photoelectric effect - define low-energy model
      G4PhotoElectricEffect* thePhotoElectricEffect = new G4PhotoElectricEffect();
      G4LivermorePhotoElectricModel* theLivermorePhotoElectricModel = 
    new G4LivermorePhotoElectricModel();
      thePhotoElectricEffect->SetEmModel(theLivermorePhotoElectricModel);
      ph->RegisterProcess(thePhotoElectricEffect, particle);

      // Compton scattering - define low-energy model
      G4ComptonScattering* theComptonScattering = new G4ComptonScattering();
      G4LivermoreComptonModel* theLivermoreComptonModel = 
    new G4LivermoreComptonModel();
      theLivermoreComptonModel->SetHighEnergyLimit(LivermoreHighEnergyLimit);
      theComptonScattering->SetEmModel(theLivermoreComptonModel, 1);
      ph->RegisterProcess(theComptonScattering, particle);

      // gamma conversion - define low-energy model
      G4GammaConversion* theGammaConversion = new G4GammaConversion();
      G4VEmModel* theLivermoreGammaConversionModel = 
    new G4LivermoreGammaConversionModel();
      theGammaConversion->SetEmModel(theLivermoreGammaConversionModel, 1);
      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->SetStepLimitType(fUseDistanceToBoundary);
      G4UrbanMscModel* msc1 = new G4UrbanMscModel();
      G4WentzelVIModel* msc2 = new G4WentzelVIModel();
      msc1->SetHighEnergyLimit(highEnergyLimit);
      msc2->SetLowEnergyLimit(highEnergyLimit);
      msc->AddEmModel(0, msc1);
      msc->AddEmModel(0, msc2);

      G4eCoulombScatteringModel* ssm = new G4eCoulombScatteringModel(); 
      G4CoulombScattering* ss = new G4CoulombScattering();
      ss->SetEmModel(ssm, 1); 
      ss->SetMinKinEnergy(highEnergyLimit);
      ssm->SetLowEnergyLimit(highEnergyLimit);
      ssm->SetActivationLowEnergyLimit(highEnergyLimit);
      ph->RegisterProcess(msc, particle);
      ph->RegisterProcess(ss, particle);
      
      // 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); //     
      ph->RegisterProcess(eIoni, particle);
      
      // Bremsstrahlung
      G4eBremsstrahlung* eBrem = new G4eBremsstrahlung();
      G4VEmModel* theBremLivermore = new G4LivermoreBremsstrahlungModel();
      theBremLivermore->SetHighEnergyLimit(1*GeV);
      //theBremLivermore->SetAngularDistribution(new G4Generator2BS());
      eBrem->SetEmModel(theBremLivermore,1);
     
      ph->RegisterProcess(eBrem, particle);

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

      // Identical to G4EmStandardPhysics_option3
      
      // multiple scattering
      G4eMultipleScattering* msc = new G4eMultipleScattering;
      msc->SetStepLimitType(fUseDistanceToBoundary);
      G4UrbanMscModel* msc1 = new G4UrbanMscModel();
      G4WentzelVIModel* msc2 = new G4WentzelVIModel();
      msc1->SetHighEnergyLimit(highEnergyLimit);
      msc2->SetLowEnergyLimit(highEnergyLimit);
      msc->AddEmModel(0, msc1);
      msc->AddEmModel(0, msc2);

      G4eCoulombScatteringModel* ssm = new G4eCoulombScatteringModel(); 
      G4CoulombScattering* ss = new G4CoulombScattering();
      ss->SetEmModel(ssm, 1); 
      ss->SetMinKinEnergy(highEnergyLimit);
      ssm->SetLowEnergyLimit(highEnergyLimit);
      ssm->SetActivationLowEnergyLimit(highEnergyLimit);

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

      ph->RegisterProcess(msc, particle);
      ph->RegisterProcess(eIoni, particle);
      ph->RegisterProcess(new G4eBremsstrahlung(), particle);
      ph->RegisterProcess(new G4eplusAnnihilation(), particle);
      ph->RegisterProcess(ss, 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);
      ph->RegisterProcess(new G4CoulombScattering(), particle);

    } else if (particleName == "alpha" ||
               particleName == "He3" ) {

      // Identical to G4EmStandardPhysics_option3
      
      G4hMultipleScattering* msc = new G4hMultipleScattering();
      G4ionIonisation* ionIoni = new G4ionIonisation();
      ionIoni->SetStepFunction(0.1, 10*um);

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

    } else if (particleName == "GenericIon") {

      // Identical to G4EmStandardPhysics_option3
      
      G4ionIonisation* ionIoni = new G4ionIonisation();
      ionIoni->SetEmModel(new G4IonParametrisedLossModel());
      ionIoni->SetStepFunction(0.1, 1*um);

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

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

      //G4hMultipleScattering* pimsc = new G4hMultipleScattering();
      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-" ) {

      //G4hMultipleScattering* kmsc = new G4hMultipleScattering();
      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();
      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-" ) {

      // Identical to G4EmStandardPhysics_option3
      
      ph->RegisterProcess(hmsc, particle);
      ph->RegisterProcess(new G4hIonisation(), particle);
      ph->RegisterProcess(pnuc, particle);
    }
  }
    
  // Em options
  //      
  G4EmProcessOptions opt;
  opt.SetVerbose(verbose);
  
  // Multiple Coulomb scattering
  //
  opt.SetPolarAngleLimit(CLHEP::pi);
    
  // Physics tables
  //

  opt.SetMinEnergy(100*eV);
  opt.SetMaxEnergy(10*TeV);
  opt.SetDEDXBinning(220);
  opt.SetLambdaBinning(220);

  // Nuclear stopping
  pnuc->SetMaxKinEnergy(MeV);

  // Ionization
  //
  //opt.SetSubCutoff(true);    

  // Deexcitation
  //
  G4VAtomDeexcitation* de = new G4UAtomicDeexcitation();
  G4LossTableManager::Instance()->SetAtomDeexcitation(de);
  de->SetFluo(true);
}

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