G4EmStandardPhysics_option3.cc

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//
//---------------------------------------------------------------------------
//
// ClassName:   G4EmStandardPhysics_option3
//
// Author:      V.Ivanchenko 13.03.2008
//
// Modified:
// 21.04.2008 V.Ivanchenko add long-lived D and B mesons; use spline
// 28.05.2008 V.Ivanchenko linLossLimit=0.01 for ions 0.001 for others
//
//----------------------------------------------------------------------------
//
 
#include "G4EmStandardPhysics_option3.hh"
 
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4LossTableManager.hh"
#include "G4EmParameters.hh"
#include "G4EmBuilder.hh"
 
#include "G4ComptonScattering.hh"
#include "G4GammaConversion.hh"
#include "G4PhotoElectricEffect.hh"
#include "G4RayleighScattering.hh"
#include "G4PEEffectFluoModel.hh"
#include "G4KleinNishinaModel.hh"
#include "G4LivermorePhotoElectricModel.hh"
#include "G4LivermorePolarizedRayleighModel.hh"
#include "G4PhotoElectricAngularGeneratorPolarized.hh"
#include "G4BetheHeitler5DModel.hh"
#include "G4eplusTo2or3GammaModel.hh"
 
#include "G4eMultipleScattering.hh"
#include "G4hMultipleScattering.hh"
#include "G4MscStepLimitType.hh"
#include "G4UrbanMscModel.hh"
#include "G4DummyModel.hh"
#include "G4WentzelVIModel.hh"
#include "G4CoulombScattering.hh"
 
#include "G4eIonisation.hh"
#include "G4eBremsstrahlung.hh"
#include "G4Generator2BS.hh"
#include "G4SeltzerBergerModel.hh"
 
#include "G4eplusAnnihilation.hh"
#include "G4UAtomicDeexcitation.hh"
 
#include "G4ePairProduction.hh"
#include "G4ionIonisation.hh"
#include "G4IonParametrisedLossModel.hh"
#include "G4LindhardSorensenIonModel.hh"
#include "G4IonFluctuations.hh"
#include "G4NuclearStopping.hh"
 
#include "G4ParticleTable.hh"
#include "G4Gamma.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4GenericIon.hh"
 
#include "G4PhysicsListHelper.hh"
#include "G4BuilderType.hh"
#include "G4EmModelActivator.hh"
#include "G4GammaGeneralProcess.hh"
 
// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4EmStandardPhysics_option3);
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
G4EmStandardPhysics_option3::G4EmStandardPhysics_option3(G4int ver, 
                             const G4String&)
  : G4VPhysicsConstructor("G4EmStandard_opt3")
{
  SetVerboseLevel(ver);
  G4EmParameters* param = G4EmParameters::Instance();
  param->SetDefaults();
  param->SetVerbose(ver);
  param->SetGeneralProcessActive(true);
  param->SetMinEnergy(10*CLHEP::eV);
  param->SetLowestElectronEnergy(100*CLHEP::eV);
  param->SetNumberOfBinsPerDecade(20);
  param->ActivateAngularGeneratorForIonisation(true);
  param->SetUseMottCorrection(true);  
  param->SetStepFunction(0.2, 100*CLHEP::um);
  param->SetStepFunctionMuHad(0.2, 50*CLHEP::um);
  param->SetStepFunctionLightIons(0.1, 20*CLHEP::um);
  param->SetStepFunctionIons(0.1, 1*CLHEP::um);
  param->SetMscStepLimitType(fUseDistanceToBoundary);
  param->SetMuHadLateralDisplacement(true);
  param->SetLateralDisplacementAlg96(true);
  param->SetUseICRU90Data(true);
  param->SetFluctuationType(fUrbanFluctuation);
  param->SetFluo(true);
  param->SetMaxNIELEnergy(1*CLHEP::MeV);
  param->SetPositronAtRestModelType(fAllisonPositronium);
  SetPhysicsType(bElectromagnetic);
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
G4EmStandardPhysics_option3::~G4EmStandardPhysics_option3() = default;
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
void G4EmStandardPhysics_option3::ConstructParticle()
{
  // minimal set of particles for EM physics
  G4EmBuilder::ConstructMinimalEmSet();
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
void G4EmStandardPhysics_option3::ConstructProcess()
{
  if(verboseLevel > 1) {
    G4cout << "### " << GetPhysicsName() << " Construct Processes " << G4endl;
  }
  G4EmBuilder::PrepareEMPhysics();
 
  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
  G4EmParameters* param = G4EmParameters::Instance();
 
  // processes used by several particles
  G4hMultipleScattering* hmsc = new G4hMultipleScattering("ionmsc");
 
  // nuclear stopping is enabled if th eenergy limit above zero
  G4double nielEnergyLimit = param->MaxNIELEnergy();
  G4NuclearStopping* pnuc = nullptr;
  if(nielEnergyLimit > 0.0) {
    pnuc = new G4NuclearStopping();
    pnuc->SetMaxKinEnergy(nielEnergyLimit);
  }
 
  // Add gamma EM Processes
  G4ParticleDefinition* particle = G4Gamma::Gamma();
 
  G4PhotoElectricEffect* pe = new G4PhotoElectricEffect();
  G4VEmModel* peModel = new G4LivermorePhotoElectricModel();
  pe->SetEmModel(peModel);
  if(param->EnablePolarisation()) {
    peModel->SetAngularDistribution(new G4PhotoElectricAngularGeneratorPolarized());
  }
 
  G4ComptonScattering* cs = new G4ComptonScattering();
  cs->SetEmModel(new G4KleinNishinaModel());
 
  G4GammaConversion* gc = new G4GammaConversion();
  if(param->EnablePolarisation()) {
    gc->SetEmModel(new G4BetheHeitler5DModel());
  }
 
  G4RayleighScattering* rl = new G4RayleighScattering();
  if(param->EnablePolarisation()) {
    rl->SetEmModel(new G4LivermorePolarizedRayleighModel());
  }
 
  if(G4EmParameters::Instance()->GeneralProcessActive()) {
    G4GammaGeneralProcess* sp = new G4GammaGeneralProcess();
    sp->AddEmProcess(pe);
    sp->AddEmProcess(cs);
    sp->AddEmProcess(gc);
    sp->AddEmProcess(rl);
    G4LossTableManager::Instance()->SetGammaGeneralProcess(sp);
    ph->RegisterProcess(sp, particle);
  } else {
    ph->RegisterProcess(pe, particle);
    ph->RegisterProcess(cs, particle);
    ph->RegisterProcess(gc, particle);
    ph->RegisterProcess(rl, particle);
  }
 
  // e-
  particle = G4Electron::Electron();
 
  G4UrbanMscModel* msc1 = new G4UrbanMscModel();
  G4EmBuilder::ConstructElectronMscProcess(msc1, nullptr, particle);
 
  G4eIonisation* eIoni = new G4eIonisation();
 
  G4eBremsstrahlung* brem = new G4eBremsstrahlung();
  G4SeltzerBergerModel* br1 = new G4SeltzerBergerModel();
  G4eBremsstrahlungRelModel* br2 = new G4eBremsstrahlungRelModel();
  br1->SetAngularDistribution(new G4Generator2BS());
  br2->SetAngularDistribution(new G4Generator2BS());
  brem->SetEmModel(br1);
  brem->SetEmModel(br2);
  br2->SetLowEnergyLimit(CLHEP::GeV);
 
  G4ePairProduction* ee = new G4ePairProduction();
 
  ph->RegisterProcess(eIoni, particle);
  ph->RegisterProcess(brem, particle);
  ph->RegisterProcess(ee, particle);
 
  // e+
  particle = G4Positron::Positron();
 
  msc1 = new G4UrbanMscModel();
  G4EmBuilder::ConstructElectronMscProcess(msc1, nullptr, particle);
 
  eIoni = new G4eIonisation();
 
  brem = new G4eBremsstrahlung();
  br1 = new G4SeltzerBergerModel();
  br2 = new G4eBremsstrahlungRelModel();
  br1->SetAngularDistribution(new G4Generator2BS());
  br2->SetAngularDistribution(new G4Generator2BS());
  brem->SetEmModel(br1);
  brem->SetEmModel(br2);
  br2->SetLowEnergyLimit(CLHEP::GeV);
 
  ph->RegisterProcess(eIoni, particle);
  ph->RegisterProcess(brem, particle);
 
  // annihilation
  auto anni = new G4eplusAnnihilation();
  if (param->Use3GammaAnnihilationOnFly()) {
    anni->SetEmModel(new G4eplusTo2or3GammaModel());
  }
  ph->RegisterProcess(ee, particle);
  ph->RegisterProcess(anni, particle);
 
  // generic ion
  particle = G4GenericIon::GenericIon();
  G4ionIonisation* ionIoni = new G4ionIonisation();
  auto fluc = new G4IonFluctuations();
  ionIoni->SetFluctModel(fluc);
  ionIoni->SetEmModel(new G4LindhardSorensenIonModel());
  ph->RegisterProcess(hmsc, particle);
  ph->RegisterProcess(ionIoni, particle);
  if(nullptr != pnuc) { ph->RegisterProcess(pnuc, particle); }
 
  // muons, hadrons, ions
  G4EmBuilder::ConstructCharged(hmsc, pnuc, false);
 
  // extra configuration
  G4EmModelActivator mact(GetPhysicsName());
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......