G4EmLowEPPhysics Class Reference

#include <G4EmLowEPPhysics.hh>

Inheritance diagram for G4EmLowEPPhysics:

Public Member Functions
	G4EmLowEPPhysics (G4int ver=1, const G4String &name="")
	~G4EmLowEPPhysics () override
void	ConstructParticle () override
void	ConstructProcess () override
Public Member Functions inherited from G4VPhysicsConstructor
	G4VPhysicsConstructor (const G4String &="")
	G4VPhysicsConstructor (const G4String &name, G4int physics_type)
virtual	~G4VPhysicsConstructor ()
void	SetPhysicsName (const G4String &="")
const G4String &	GetPhysicsName () const
void	SetPhysicsType (G4int)
G4int	GetPhysicsType () const
G4int	GetInstanceID () const
virtual void	TerminateWorker ()
void	SetVerboseLevel (G4int value)
G4int	GetVerboseLevel () const

Additional Inherited Members
Static Public Member Functions inherited from G4VPhysicsConstructor
static const G4VPCManager &	GetSubInstanceManager ()
Protected Types inherited from G4VPhysicsConstructor
using	PhysicsBuilder_V = G4VPCData::PhysicsBuilders_V
Protected Member Functions inherited from G4VPhysicsConstructor
G4bool	RegisterProcess (G4VProcess *process, G4ParticleDefinition *particle)
G4ParticleTable::G4PTblDicIterator *	GetParticleIterator () const
PhysicsBuilder_V	GetBuilders () const
void	AddBuilder (G4PhysicsBuilderInterface *bld)
Protected Attributes inherited from G4VPhysicsConstructor
G4int	verboseLevel = 0
G4String	namePhysics = ""
G4int	typePhysics = 0
G4ParticleTable *	theParticleTable = nullptr
G4int	g4vpcInstanceID = 0
Static Protected Attributes inherited from G4VPhysicsConstructor
static G4RUN_DLL G4VPCManager	subInstanceManager

Detailed Description

Definition at line 48 of file G4EmLowEPPhysics.hh.

Constructor & Destructor Documentation

G4EmLowEPPhysics()

G4EmLowEPPhysics::G4EmLowEPPhysics ( G4int ver = 1, const G4String & name = "" )

explicit

Definition at line 121 of file G4EmLowEPPhysics.cc.

  : G4VPhysicsConstructor("G4EmLowEPPhysics")
{
  SetVerboseLevel(ver);
  G4EmParameters* param = G4EmParameters::Instance();
  param->SetDefaults();
  param->SetVerbose(ver);
  param->SetMinEnergy(100*CLHEP::eV);
  param->SetLowestElectronEnergy(100*CLHEP::eV);
  param->SetNumberOfBinsPerDecade(20);
  param->ActivateAngularGeneratorForIonisation(true);
  param->SetStepFunction(0.2, 100*CLHEP::um);
  param->SetStepFunctionMuHad(0.1, 50*CLHEP::um);
  param->SetStepFunctionLightIons(0.1, 20*CLHEP::um);
  param->SetStepFunctionIons(0.1, 1*CLHEP::um);
  param->SetUseMottCorrection(true);
  param->SetMscRangeFactor(0.04);   
  param->SetMuHadLateralDisplacement(true);
  param->SetFluo(true);
  param->SetAuger(true);
  param->SetUseICRU90Data(true);
  SetPhysicsType(bElectromagnetic);
}

~G4EmLowEPPhysics()

G4EmLowEPPhysics::~G4EmLowEPPhysics ( )

override

Definition at line 147 of file G4EmLowEPPhysics.cc.

{}

Member Function Documentation

ConstructParticle()

void G4EmLowEPPhysics::ConstructParticle ( )

overridevirtual

Implements G4VPhysicsConstructor.

Definition at line 152 of file G4EmLowEPPhysics.cc.

{
  // minimal set of particles for EM physics
  G4EmBuilder::ConstructMinimalEmSet();
}

ConstructProcess()

void G4EmLowEPPhysics::ConstructProcess ( )

overridevirtual

Implements G4VPhysicsConstructor.

Definition at line 160 of file G4EmLowEPPhysics.cc.

{
  if(verboseLevel > 1) {
    G4cout << "### " << GetPhysicsName() << " Construct Processes " << G4endl;
  }
  G4EmBuilder::PrepareEMPhysics();
 
  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
  G4EmParameters* param = G4EmParameters::Instance();
 
  // common processes
  G4hMultipleScattering* hmsc = new G4hMultipleScattering("ionmsc");
 
  // nuclear stopping
  G4double nielEnergyLimit = param->MaxNIELEnergy();
  G4NuclearStopping* pnuc = nullptr;
  if(nielEnergyLimit > 0.0) {
    pnuc = new G4NuclearStopping();
    pnuc->SetMaxKinEnergy(nielEnergyLimit);
  }
 
  // high energy limit for e+- scattering models and bremsstrahlung
  G4double highEnergyLimit = param->MscEnergyLimit();
 
  // Add gamma EM Processes
  G4ParticleDefinition* particle = G4Gamma::Gamma();
 
  // Photoelectric absorption
  G4PhotoElectricEffect* pe = new G4PhotoElectricEffect();
  G4VEmModel* theLivermorePEModel = new G4LivermorePhotoElectricModel();
  theLivermorePEModel->SetAngularDistribution(new G4PhotoElectricAngularGeneratorPolarized());
  pe->SetEmModel(theLivermorePEModel);
 
  // Compton scattering - Polarised Monash model  
  G4ComptonScattering* cs = new G4ComptonScattering;
  G4VEmModel* theLowEPCSModel = new G4LowEPPolarizedComptonModel();
  cs->SetEmModel(theLowEPCSModel);
 
  // gamma conversion - 5D model below 80 GeV with Livermore x-sections
  G4GammaConversion* theGammaConversion = new G4GammaConversion();
  G4VEmModel* conv = new G4BetheHeitler5DModel();
  theGammaConversion->SetEmModel(conv);
 
  // default Rayleigh scattering is Livermore
  G4RayleighScattering* theRayleigh = new G4RayleighScattering();
  G4VEmModel* theLivermorePRSModel = new G4LivermorePolarizedRayleighModel();
  theRayleigh->SetEmModel(theLivermorePRSModel);
 
  ph->RegisterProcess(pe, particle);
  ph->RegisterProcess(cs, particle);
  ph->RegisterProcess(theGammaConversion, particle);
  ph->RegisterProcess(theRayleigh, particle);
 
  // e-
  particle = G4Electron::Electron();
 
  // multiple scattering
  G4eMultipleScattering* msc = new G4eMultipleScattering();
  G4GoudsmitSaundersonMscModel* msc1 = new G4GoudsmitSaundersonMscModel();
  G4WentzelVIModel* msc2 = new G4WentzelVIModel();
  msc1->SetHighEnergyLimit(highEnergyLimit);
  msc2->SetLowEnergyLimit(highEnergyLimit);
  msc->SetEmModel(msc1);
  msc->SetEmModel(msc2);
 
  G4eCoulombScatteringModel* ssm = new G4eCoulombScatteringModel();
  G4CoulombScattering* ss = new G4CoulombScattering();
  ss->SetEmModel(ssm);
  ss->SetMinKinEnergy(highEnergyLimit);
  ssm->SetLowEnergyLimit(highEnergyLimit);
  ssm->SetActivationLowEnergyLimit(highEnergyLimit);
 
  // Ionisation - Livermore should be used only for low energies
  G4eIonisation* eioni = new G4eIonisation();
  G4LivermoreIonisationModel* theIoniLivermore = new G4LivermoreIonisationModel();
  theIoniLivermore->SetHighEnergyLimit(0.1*CLHEP::MeV); 
  eioni->AddEmModel(0, theIoniLivermore, new G4UniversalFluctuation() );
 
  // Bremsstrahlung
  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);
  br1->SetHighEnergyLimit(GeV);
 
  G4ePairProduction* ee = new G4ePairProduction();
 
  // register processes
  ph->RegisterProcess(msc, particle);
  ph->RegisterProcess(ss, particle);
  ph->RegisterProcess(eioni, particle);
  ph->RegisterProcess(brem, particle);
  ph->RegisterProcess(ee, particle);
 
  // e+
  particle = G4Positron::Positron();
 
  // multiple scattering
  msc = new G4eMultipleScattering();
  msc1 = new G4GoudsmitSaundersonMscModel();
  msc2 = new G4WentzelVIModel();
  msc1->SetHighEnergyLimit(highEnergyLimit);
  msc2->SetLowEnergyLimit(highEnergyLimit);
  msc->SetEmModel(msc1);
  msc->SetEmModel(msc2);
 
  ssm = new G4eCoulombScatteringModel();
  ss = new G4CoulombScattering();
  ss->SetEmModel(ssm);
  ss->SetMinKinEnergy(highEnergyLimit);
  ssm->SetLowEnergyLimit(highEnergyLimit);
  ssm->SetActivationLowEnergyLimit(highEnergyLimit);
 
  // Standard ionisation 
  eioni = new G4eIonisation();
  G4VEmModel* pen = new G4PenelopeIonisationModel();
  pen->SetHighEnergyLimit(0.1*MeV);
  eioni->AddEmModel(0, pen, new G4UniversalFluctuation());
 
  // Bremsstrahlung
  brem = new G4eBremsstrahlung();
  br1 = new G4SeltzerBergerModel();
  br2 = new G4eBremsstrahlungRelModel();
  br1->SetAngularDistribution(new G4Generator2BS());
  br2->SetAngularDistribution(new G4Generator2BS());
  brem->SetEmModel(br1);
  brem->SetEmModel(br2);
  br1->SetHighEnergyLimit(CLHEP::GeV);
 
  // register processes
  ph->RegisterProcess(msc, particle);
  ph->RegisterProcess(ss, particle);
  ph->RegisterProcess(eioni, particle);
  ph->RegisterProcess(brem, particle);
  ph->RegisterProcess(ee, particle);
  ph->RegisterProcess(new G4eplusAnnihilation(), particle);
 
  // generic ion
  particle = G4GenericIon::GenericIon();
       
  G4ionIonisation* ionIoni = new G4ionIonisation();
  G4VEmModel* mod = new G4LindhardSorensenIonModel();
  ionIoni->SetEmModel(mod);
 
  ph->RegisterProcess(hmsc, particle);
  ph->RegisterProcess(ionIoni, particle);
  if(nullptr != pnuc) { ph->RegisterProcess(pnuc, particle); }
 
  // muons, hadrons ions
  G4EmBuilder::ConstructCharged(hmsc, pnuc);
 
  // extra configuration
  G4EmModelActivator mact(GetPhysicsName());
}

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The documentation for this class was generated from the following files:

• G4EmLowEPPhysics.hh
• G4EmLowEPPhysics.cc