G4EmLivermorePhysics Class Reference

#include <G4EmLivermorePhysics.hh>

Inheritance diagram for G4EmLivermorePhysics:

Public Member Functions
	G4EmLivermorePhysics (G4int ver=1, const G4String &name="G4EmLivermore")
	~G4EmLivermorePhysics () 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 ()
virtual void	ConstructParticle ()=0
virtual void	ConstructProcess ()=0
void	SetPhysicsName (const G4String &="")
const G4String &	GetPhysicsName () const
void	SetPhysicsType (G4int)
G4int	GetPhysicsType () const
void	SetVerboseLevel (G4int value)
G4int	GetVerboseLevel () const
G4int	GetInstanceID () const
virtual void	TerminateWorker ()

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
G4String	namePhysics
G4int	typePhysics
G4ParticleTable *	theParticleTable
G4int	g4vpcInstanceID
Static Protected Attributes inherited from G4VPhysicsConstructor
static G4RUN_DLL G4VPCManager	subInstanceManager

Detailed Description

Definition at line 35 of file G4EmLivermorePhysics.hh.

Constructor & Destructor Documentation

G4EmLivermorePhysics()

G4EmLivermorePhysics::G4EmLivermorePhysics ( G4int  ver = 1, const G4String &  name = "G4EmLivermore"  )

explicit

Definition at line 107 of file G4EmLivermorePhysics.cc.

  : G4VPhysicsConstructor(pname), verbose(ver)
{
  G4EmParameters* param = G4EmParameters::Instance();
  param->SetDefaults();
  param->SetVerbose(verbose);
  param->SetMinEnergy(100*CLHEP::eV);
  param->SetLowestElectronEnergy(100*CLHEP::eV);
  param->SetNumberOfBinsPerDecade(20);
  param->ActivateAngularGeneratorForIonisation(true);
  param->SetStepFunction(0.2, 10*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->SetMscStepLimitType(fUseSafetyPlus);
  param->SetMscSkin(3);
  param->SetMscRangeFactor(0.08);
  param->SetMuHadLateralDisplacement(true);
  param->SetFluo(true);
  param->SetMaxNIELEnergy(1*CLHEP::MeV);
  SetPhysicsType(bElectromagnetic);
}

~G4EmLivermorePhysics()

G4EmLivermorePhysics::~G4EmLivermorePhysics ( )

override

Definition at line 133 of file G4EmLivermorePhysics.cc.

{}

Member Function Documentation

ConstructParticle()

void G4EmLivermorePhysics::ConstructParticle ( )

overridevirtual

Implements G4VPhysicsConstructor.

Definition at line 138 of file G4EmLivermorePhysics.cc.

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

ConstructProcess()

void G4EmLivermorePhysics::ConstructProcess ( )

overridevirtual

Implements G4VPhysicsConstructor.

Reimplemented in G4EmLivermorePolarizedPhysics.

Definition at line 146 of file G4EmLivermorePhysics.cc.

{
  if(verbose > 1) {
    G4cout << "### " << GetPhysicsName() << " Construct Processes " << G4endl;
  }
  G4EmBuilder::PrepareEMPhysics();
  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
  
  // processes used by several particles
  G4ePairProduction* ee = new G4ePairProduction();
  G4hMultipleScattering* hmsc = new G4hMultipleScattering("ionmsc");
 
  // high energy limit for e+- scattering models
  G4double highEnergyLimit= G4EmParameters::Instance()->MscEnergyLimit();
  G4double livEnergyLimit = 1*GeV;
 
  // nuclear stopping
  G4double nielEnergyLimit = G4EmParameters::Instance()->MaxNIELEnergy();
  G4NuclearStopping* pnuc = new G4NuclearStopping();
  pnuc->SetMaxKinEnergy(nielEnergyLimit);
 
  // Add Livermore EM Processes
 
  // Add gamma EM Processes
  G4ParticleDefinition* particle = G4Gamma::Gamma();
 
  // photoelectric effect - Livermore model only
  G4PhotoElectricEffect* thePhotoElectricEffect = new G4PhotoElectricEffect();
  thePhotoElectricEffect->SetEmModel(new G4LivermorePhotoElectricModel());
 
  // Compton scattering - Livermore model only
  G4ComptonScattering* theComptonScattering = new G4ComptonScattering();
  theComptonScattering->SetEmModel(new G4KleinNishinaModel());
  G4VEmModel* comptLiv = new G4LivermoreComptonModel();
  comptLiv->SetHighEnergyLimit(livEnergyLimit);
  theComptonScattering->AddEmModel(0, comptLiv);
 
  // gamma conversion 
  G4GammaConversion* theGammaConversion = new G4GammaConversion();
  G4VEmModel* convLiv = new G4LivermoreGammaConversion5DModel();
  theGammaConversion->SetEmModel(convLiv);
 
  // default Rayleigh scattering is Livermore
  G4RayleighScattering* theRayleigh = new G4RayleighScattering();
 
  ph->RegisterProcess(thePhotoElectricEffect, particle);
  ph->RegisterProcess(theComptonScattering, particle);
  ph->RegisterProcess(theGammaConversion, particle);
  ph->RegisterProcess(theRayleigh, particle);
 
  // e-
  particle = G4Electron::Electron();
 
  // multiple and single 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();
  G4VEmModel* theIoniLiv = new G4LivermoreIonisationModel();
  theIoniLiv->SetHighEnergyLimit(0.1*CLHEP::MeV); 
  eioni->AddEmModel(0, theIoniLiv, 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);
     
  // register processes
  ph->RegisterProcess(msc, particle);
  ph->RegisterProcess(eioni, particle);
  ph->RegisterProcess(brem, particle);
  ph->RegisterProcess(ee, particle);
  ph->RegisterProcess(ss, particle);
 
  // e+
  particle = G4Positron::Positron();
 
  // multiple and single 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);
 
  // ionisation
  eioni = new G4eIonisation();
 
  // Bremsstrahlung from standard
  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(GeV);
 
  // register processes
  ph->RegisterProcess(msc, particle);
  ph->RegisterProcess(eioni, particle);
  ph->RegisterProcess(brem, particle);
  ph->RegisterProcess(ee, particle);
  ph->RegisterProcess(new G4eplusAnnihilation(), particle);
  ph->RegisterProcess(ss, particle);
 
  // generic ion
  particle = G4GenericIon::GenericIon();
  G4ionIonisation* ionIoni = new G4ionIonisation();
  ionIoni->SetEmModel(new G4IonParametrisedLossModel());
  ph->RegisterProcess(hmsc, particle);
  ph->RegisterProcess(ionIoni, particle);
  ph->RegisterProcess(pnuc, particle);
 
  // muons, hadrons, ions
  G4EmBuilder::ConstructCharged(hmsc, pnuc);
 
  // extra configuration
  G4EmModelActivator mact(GetPhysicsName());
 
}

Referenced by G4EmLivermorePolarizedPhysics::ConstructProcess().

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

• G4EmLivermorePhysics.hh
• G4EmLivermorePhysics.cc