G4ParticleHPInelasticData Class Reference

#include <G4ParticleHPInelasticData.hh>

Inheritance diagram for G4ParticleHPInelasticData:

Collaboration diagram for G4ParticleHPInelasticData:

Public Member Functions
	G4ParticleHPInelasticData (G4ParticleDefinition *projectile=G4Neutron::Neutron())
	~G4ParticleHPInelasticData ()
G4bool	IsIsoApplicable (const G4DynamicParticle *, G4int, G4int, const G4Element *, const G4Material *)
G4double	GetIsoCrossSection (const G4DynamicParticle *, G4int, G4int, const G4Isotope *, const G4Element *, const G4Material *)
G4double	GetCrossSection (const G4DynamicParticle *, const G4Element *, G4double aT)
void	BuildPhysicsTable (const G4ParticleDefinition &)
void	DumpPhysicsTable (const G4ParticleDefinition &)
void	IgnoreOnFlightDopplerBroadening ()
void	EnableOnFlightDopplerBroadening ()
G4ParticleDefinition *	GetProjectile ()
G4int	GetVerboseLevel () const
void	SetVerboseLevel (G4int)
virtual void	CrossSectionDescription (std::ostream &) const
Public Member Functions inherited from G4VCrossSectionDataSet
	G4VCrossSectionDataSet (const G4String &nam="")
virtual	~G4VCrossSectionDataSet ()
virtual G4bool	IsElementApplicable (const G4DynamicParticle *, G4int Z, const G4Material *mat=0)
G4double	GetCrossSection (const G4DynamicParticle *, const G4Element *, const G4Material *mat=0)
G4double	ComputeCrossSection (const G4DynamicParticle *, const G4Element *, const G4Material *mat=0)
virtual G4double	GetElementCrossSection (const G4DynamicParticle *, G4int Z, const G4Material *mat=0)
virtual G4Isotope *	SelectIsotope (const G4Element *, G4double kinEnergy)
G4double	GetMinKinEnergy () const
void	SetMinKinEnergy (G4double value)
G4double	GetMaxKinEnergy () const
void	SetMaxKinEnergy (G4double value)
const G4String &	GetName () const

Additional Inherited Members
Protected Member Functions inherited from G4VCrossSectionDataSet
void	SetName (const G4String &)
Protected Attributes inherited from G4VCrossSectionDataSet
G4int	verboseLevel

Detailed Description

Definition at line 53 of file G4ParticleHPInelasticData.hh.

Constructor & Destructor Documentation

G4ParticleHPInelasticData::G4ParticleHPInelasticData

(

G4ParticleDefinition *

projectile = G4Neutron::Neutron()

)

Definition at line 46 of file G4ParticleHPInelasticData.cc.

  : G4VCrossSectionDataSet("")
{
  const char* dataDirVariable;
  G4String particleName;
  if( projectile == G4Neutron::Neutron() ) {
      dataDirVariable = "G4NEUTRONHPDATA";
  }else if( projectile == G4Proton::Proton() ) {
    dataDirVariable = "G4PROTONHPDATA";
    particleName = "Proton";
  }else if( projectile == G4Deuteron::Deuteron() ) {
    dataDirVariable = "G4DEUTERONHPDATA";
    particleName = "Deuteron";
  }else if( projectile == G4Triton::Triton() ) {
    dataDirVariable = "G4TRITONHPDATA";
    particleName = "Triton";
  }else if( projectile == G4He3::He3() ) {
    dataDirVariable = "G4HE3HPDATA";
    particleName = "He3";
  }else if( projectile == G4Alpha::Alpha() ) {
    dataDirVariable = "G4ALPHAHPDATA";
    particleName = "Alpha";
  } else {
    G4String message("G4ParticleHPInelasticData may only be called for neutron, proton, deuteron, triton, He3 or alpha, while it is called for " + projectile->GetParticleName());
    throw G4HadronicException(__FILE__, __LINE__,message.c_str());
  }
  //  G4cout << this << " G4ParticleHPInelasticData::G4ParticleHPInelasticData " << projectile->GetParticleName() << " DATADIR " << dataDirVariable << G4endl;//GDEB
  G4String dataName = projectile->GetParticleName()+"HPInelasticXS";
  dataName.at(0) = toupper(dataName.at(0)) ;
  SetName( dataName );

  if ( !getenv(dataDirVariable) && !getenv( "G4PARTICLEHPDATA" ) ){
     G4String message("Please setenv " + G4String(dataDirVariable) + " to point to the " + projectile->GetParticleName() + " cross-section files.");
     throw G4HadronicException(__FILE__, __LINE__,message.c_str());
  }

  G4String dirName;
  if ( getenv(dataDirVariable) ) {
     dirName = getenv(dataDirVariable);
  } else {
     G4String baseName = getenv( "G4PARTICLEHPDATA" );
     dirName = baseName + "/" + particleName;
  }
  G4cout << "@@@ G4ParticleHPInelasticData instantiated for particle " << projectile->GetParticleName() << " data directory variable is " << dataDirVariable << " pointing to " << dirName << G4endl;

  SetMinKinEnergy( 0*CLHEP::MeV );                                   
  SetMaxKinEnergy( 20*CLHEP::MeV );                                   

   onFlightDB = true;
   theCrossSections = 0;
   theProjectile=projectile;

   theHPData = NULL;
   instanceOfWorker = false;
   if ( G4Threading::IsMasterThread() ) {
      theHPData = new G4ParticleHPData( theProjectile ); 
   } else {
      instanceOfWorker = true;
   }
   element_cache = NULL;
   material_cache = NULL;
   ke_cache = 0.0; 
   xs_cache = 0.0; 
}

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G4ParticleHPInelasticData::~G4ParticleHPInelasticData

(

)

Definition at line 111 of file G4ParticleHPInelasticData.cc.

{
   if ( theCrossSections != NULL && instanceOfWorker != true ) {
     theCrossSections->clearAndDestroy();
     delete theCrossSections;
     theCrossSections = NULL;
   }
   if ( theHPData != NULL && instanceOfWorker != true ) {
     delete theHPData;
     theHPData = NULL;
   }
}

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Member Function Documentation

void G4ParticleHPInelasticData::BuildPhysicsTable ( const G4ParticleDefinition &  projectile )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 164 of file G4ParticleHPInelasticData.cc.

{
  //  if(&projectile!=G4Neutron::Neutron()) 
  //     throw G4HadronicException(__FILE__, __LINE__, "Attempt to use NeutronHP data for particles other than neutrons!!!");  

//080428
   if ( G4ParticleHPManager::GetInstance()->GetNeglectDoppler() ) 
   {
      G4cout << "Find a flag of \"G4PHP_NEGLECT_DOPPLER\"." << G4endl;
      G4cout << "On the fly Doppler broadening will be neglect in the cross section calculation of inelastic scattering of neutrons (<20MeV)." << G4endl;
      onFlightDB = false;
   }    

   if ( G4Threading::IsWorkerThread() ) {
      theCrossSections = G4ParticleHPManager::GetInstance()->GetInelasticCrossSections( &projectile );
      return;
   } else {
      if ( theHPData == NULL ) theHPData = G4ParticleHPData::Instance( const_cast<G4ParticleDefinition*> ( &projectile ) ); 
   }



  size_t numberOfElements = G4Element::GetNumberOfElements();
//  theCrossSections = new G4PhysicsTable( numberOfElements );
// TKDB
  //if ( theCrossSections == 0 )
  //{ theCrossSections = new G4PhysicsTable( numberOfElements ); }
  if ( theCrossSections == NULL ) 
    theCrossSections = new G4PhysicsTable( numberOfElements );
  else
    theCrossSections->clearAndDestroy();

  // make a PhysicsVector for each element

  //G4ParticleHPData* hpData = new G4ParticleHPData(projectile); //NEW
  static G4ThreadLocal G4ElementTable *theElementTable  = 0 ;
  if (!theElementTable) theElementTable= G4Element::GetElementTable();
  for( size_t i=0; i<numberOfElements; ++i )
  {
    //NEW    G4PhysicsVector* physVec = G4ParticleHPData::
    //NEW      Instance(projectile, dataDirVariable)->MakePhysicsVector((*theElementTable)[i], this);
    //G4PhysicsVector* physVec = hpData->MakePhysicsVector((*theElementTable)[i], this);
    G4PhysicsVector* physVec = theHPData->MakePhysicsVector((*theElementTable)[i], this);
    theCrossSections->push_back(physVec);
  }

   G4ParticleHPManager::GetInstance()->RegisterInelasticCrossSections( &projectile , theCrossSections );
}

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void G4ParticleHPInelasticData::CrossSectionDescription ( std::ostream &  outFile ) const

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 373 of file G4ParticleHPInelasticData.cc.

{
   outFile << "Extension of High Precision cross section for inelastic reaction of proton, deuteron, triton, He3 and alpha below 20MeV\n";
}

void G4ParticleHPInelasticData::DumpPhysicsTable ( const G4ParticleDefinition &  projectile )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 213 of file G4ParticleHPInelasticData.cc.

{
  if(&projectile!=theProjectile) 
     throw G4HadronicException(__FILE__, __LINE__, "Attempt to use ParticleHP data for a wrong projectile!!!");  

//
// Dump element based cross section
// range 10e-5 eV to 20 MeV
// 10 point per decade
// in barn
//

   G4cout << G4endl;
   G4cout << G4endl;
   G4cout << "Inelastic Cross Section of Neutron HP"<< G4endl;
   G4cout << "(Pointwise cross-section at 0 Kelvin.)" << G4endl;
   G4cout << G4endl;
   G4cout << "Name of Element" << G4endl;
   G4cout << "Energy[eV]  XS[barn]" << G4endl;
   G4cout << G4endl;

   size_t numberOfElements = G4Element::GetNumberOfElements();
   static G4ThreadLocal G4ElementTable *theElementTable  = 0 ;
   if (!theElementTable) theElementTable= G4Element::GetElementTable();

   for ( size_t i = 0 ; i < numberOfElements ; ++i )
   {

      G4cout << (*theElementTable)[i]->GetName() << G4endl;

      G4int ie = 0;

      for ( ie = 0 ; ie < 130 ; ie++ )
      {
    G4double eKinetic = 1.0e-5 * G4Pow::GetInstance()->powA ( 10.0 , ie/10.0 ) *CLHEP::eV;
         G4bool outOfRange = false;

         if ( eKinetic < 20*CLHEP::MeV )
         {
       G4cout << eKinetic/CLHEP::eV << " " << (*((*theCrossSections)(i))).GetValue(eKinetic, outOfRange)/CLHEP::barn << G4endl;
         }

      }

      G4cout << G4endl;
   }

  //G4cout << "G4ParticleHPInelasticData::DumpPhysicsTable still to be implemented"<<G4endl;
}

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void G4ParticleHPInelasticData::EnableOnFlightDopplerBroadening ( )

inline

Definition at line 86 of file G4ParticleHPInelasticData.hh.

{ onFlightDB = true; };

G4double G4ParticleHPInelasticData::GetCrossSection	(	const G4DynamicParticle *	projectile,
		const G4Element *	anE,
		G4double	aT
	)

Definition at line 266 of file G4ParticleHPInelasticData.cc.

{
  G4double result = 0;
  G4bool outOfRange;
  G4int index = anE->GetIndex();

  // prepare neutron
  G4double eKinetic = projectile->GetKineticEnergy();

  if ( !onFlightDB )
  {
     //NEGLECT_DOPPLER
     G4double factor = 1.0;
     if ( eKinetic < aT * CLHEP::k_Boltzmann ) 
     {
        // below 0.1 eV neutrons 
        // Have to do some, but now just igonre.   
        // Will take care after performance check.  
        // factor = factor * targetV;
     }
     return ( (*((*theCrossSections)(index))).GetValue(eKinetic, outOfRange) )* factor; 

  }   

  G4ReactionProduct theNeutron( projectile->GetDefinition() );
  theNeutron.SetMomentum( projectile->GetMomentum() );
  theNeutron.SetKineticEnergy( eKinetic );

  // prepare thermal nucleus
  G4Nucleus aNuc;
  G4double eps = 0.0001;
  G4double theA = anE->GetN();
  G4double theZ = anE->GetZ();
  G4double eleMass; 
  eleMass = G4NucleiProperties::GetNuclearMass(static_cast<G4int>(theA+eps), static_cast<G4int>(theZ+eps) );
  
  G4ReactionProduct boosted;
  G4double aXsection;
  
  // MC integration loop
  G4int counter = 0;
  G4int failCount = 0;
  G4double buffer = 0; G4int size = G4int(std::max(10., aT/60*CLHEP::kelvin));
  G4ThreeVector neutronVelocity = 1./theProjectile->GetPDGMass()*theNeutron.GetMomentum();
  G4double neutronVMag = neutronVelocity.mag();

  //  G4cout << " G4ParticleHPInelasticData 2 " << size << G4endl;//GDEB
#ifndef G4PHP_DOPPLER_LOOP_ONCE
  while(counter == 0 || std::abs(buffer-result/std::max(1,counter)) > 0.01*buffer) // Loop checking, 11.05.2015, T. Koi
  {
    if(counter) buffer = result/counter;
    while (counter<size) // Loop checking, 11.05.2015, T. Koi
    {
      counter ++;
#endif
      //G4ReactionProduct aThermalNuc = aNuc.GetThermalNucleus( eleMass/theProjectile->GetPDGMass(), aT );
      //G4Nucleus::GetThermalNucleus requests normalization of mass in neutron mass
      G4ReactionProduct aThermalNuc = aNuc.GetThermalNucleus( eleMass/G4Neutron::Neutron()->GetPDGMass(), aT );
      boosted.Lorentz(theNeutron, aThermalNuc);
      G4double theEkin = boosted.GetKineticEnergy();
      aXsection = (*((*theCrossSections)(index))).GetValue(theEkin, outOfRange);
      //       G4cout << " G4ParticleHPInelasticData aXsection " << aXsection << " index " << index << " theEkin " << theEkin << " outOfRange " << outOfRange <<G4endl;//GDEB
     if(aXsection <0) 
      {
        if(failCount<1000)
    {
      failCount++;
#ifndef G4PHP_DOPPLER_LOOP_ONCE
      counter--;
      continue;
#endif
    }
    else
    {
      aXsection = 0;
    }
      }
      // velocity correction.
      G4ThreeVector targetVelocity = 1./aThermalNuc.GetMass()*aThermalNuc.GetMomentum();
      aXsection *= (targetVelocity-neutronVelocity).mag()/neutronVMag;
      result += aXsection;
    }
#ifndef G4PHP_DOPPLER_LOOP_ONCE
    size += size;
  }
  result /= counter;
#endif

/*
  // Checking impact of  G4PHP_NEGLECT_DOPPLER
  G4cout << " result " << result << " " 
         << (*((*theCrossSections)(index))).GetValue(eKinetic, outOfRange) << " " 
         << (*((*theCrossSections)(index))).GetValue(eKinetic, outOfRange) /result << G4endl;
*/
//   G4cout << this << " G4ParticleHPInelasticData result " << result << G4endl; //GDEB

  return result;
}

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G4double G4ParticleHPInelasticData::GetIsoCrossSection ( const G4DynamicParticle *  dp, G4int  , G4int  , const G4Isotope *  , const G4Element *  element, const G4Material *  material  )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 137 of file G4ParticleHPInelasticData.cc.

{
   if ( dp->GetKineticEnergy() == ke_cache && element == element_cache &&  material == material_cache ) return xs_cache;

   ke_cache = dp->GetKineticEnergy();
   element_cache = element;
   material_cache = material;
   G4double xs = GetCrossSection( dp , element , material->GetTemperature() );
   xs_cache = xs;
   return xs;
}

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G4ParticleDefinition* G4ParticleHPInelasticData::GetProjectile ( )

inline

Definition at line 88 of file G4ParticleHPInelasticData.hh.

{return theProjectile;}

G4int G4ParticleHPInelasticData::GetVerboseLevel ( ) const

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 365 of file G4ParticleHPInelasticData.cc.

{
   return G4ParticleHPManager::GetInstance()->GetVerboseLevel();
}

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void G4ParticleHPInelasticData::IgnoreOnFlightDopplerBroadening ( )

inline

Definition at line 85 of file G4ParticleHPInelasticData.hh.

{ onFlightDB = false; };

G4bool G4ParticleHPInelasticData::IsIsoApplicable ( const G4DynamicParticle *  dp, G4int  , G4int  , const G4Element *  , const G4Material *    )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 124 of file G4ParticleHPInelasticData.cc.

{
   G4double eKin = dp->GetKineticEnergy();
   if ( eKin > GetMaxKinEnergy() 
     || eKin < GetMinKinEnergy() 
     || dp->GetDefinition() != theProjectile ) return false;                                   

   return true;
}

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void G4ParticleHPInelasticData::SetVerboseLevel ( G4int  newValue )

virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 369 of file G4ParticleHPInelasticData.cc.

{
   G4ParticleHPManager::GetInstance()->SetVerboseLevel(newValue);
}

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---

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

• source/geant4.10.03.p03/source/processes/hadronic/models/particle_hp/include/G4ParticleHPInelasticData.hh
• source/geant4.10.03.p03/source/processes/hadronic/models/particle_hp/src/G4ParticleHPInelasticData.cc