G4ParticleHPContEnergyAngular.cc

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// particle_hp -- source file
// J.P. Wellisch, Nov-1996
// A prototype of the low energy neutron transport model.
//
// 080721 To be "ClearHistories" effective, the selection scheme of angular distribution is modified by T. Koi
//
// P. Arce, Dec-2014 Conversion neutron_hp to particle_hp
//
#include "G4ParticleHPContEnergyAngular.hh"
 
G4ReactionProduct * G4ParticleHPContEnergyAngular::Sample(G4double anEnergy, G4double massCode, G4double /*mass*/)
{
   G4ReactionProduct * result;
   G4int i(0);
   G4int it(0);
   for(i=0;i<nEnergy;i++)
   {
     it = i;
#ifdef PHP_AS_HP 
     if(theAngular[i].GetEnergy()>anEnergy) break;
#else
     if(theAngular[i].GetEnergy()>=anEnergy) break;
#endif
   }
   if( std::getenv("G4PHPTEST") )    G4cout << i << " G4ParticleHPContEnergyAngular dataE " << theAngular[i].GetEnergy() << " > " << anEnergy << " it_theAngular " << it << " interpolation " << theInterpolation << G4endl; //GDEB
   G4double targetMass = GetTarget()->GetMass();
   if(it==0)
   {
     theAngular[0].SetTarget(GetTarget());
     theAngular[0].SetTargetCode(theTargetCode);
     theAngular[0].SetPrimary(GetProjectileRP());
     result = theAngular[0].Sample(anEnergy, massCode, targetMass, 
                                  theAngularRep, theInterpolation);
     currentMeanEnergy.Put( theAngular[0].MeanEnergyOfThisInteraction() );
   }
   else
   {
     // interpolation through alternating sampling. This needs improvement @@@
     // This is the cause of the He3 problem !!!!!!!!
     // See to it, if you can improve this.
     //080714 TK commnet Randomizing use angular distribution
     //080714 TK Always use the upper side distribution. enabling ClearHistories method.
     //G4double random = G4UniformRand();
     //G4double deltaE = theAngular[it].GetEnergy()-theAngular[it-1].GetEnergy();
     //G4double offset = theAngular[it].GetEnergy()-anEnergy;
     //if(random<offset/deltaE) it--;
     //--- create new 
     //     if( theManager.GetScheme(0) != LINLIN ) {  // asserted in G4ParticleHPContEnergyAngular::init there is only one range
#ifdef PHP_AS_HP
     theAngular[it].SetTarget(GetTarget());
     theAngular[it].SetTargetCode(theTargetCode);
     theAngular[it].SetPrimary(GetProjectileRP());
     result = theAngular[it].Sample(anEnergy, massCode, targetMass, 
                    theAngularRep, theInterpolation);
     currentMeanEnergy.Put( theAngular[it].MeanEnergyOfThisInteraction() ); 
#else
    if( std::getenv("G4PHPTEST") )     G4cout << i << " G4ParticleHPContEnergyAngular To BUILDBYINTERPOLATION " << it << " : " << theAngular[it].GetEnergy()<< " , " << theAngular[it].GetNEnergies() << " " << it-1 << " : " << theAngular[it-1].GetEnergy()<< " : " << theAngular[it-1].GetNEnergies() << G4endl; //GDEB
 
//     G4ParticleHPContAngularPar * fAngular = new  G4ParticleHPContAngularPar(theProjectile ); //fix start
     if (fCacheAngular.Get() == NULL) {
        G4ParticleHPContAngularPar* angpar = new G4ParticleHPContAngularPar(theProjectile);
        fCacheAngular.Put(angpar);
        }
     fCacheAngular.Get()->SetInterpolation(theInterpolation);
     fCacheAngular.Get()->BuildByInterpolation( anEnergy, theManager.GetScheme(0), (theAngular[it-1]), (theAngular[it]) );
     fCacheAngular.Get()->SetTarget(GetTarget());
     fCacheAngular.Get()->SetTargetCode(theTargetCode);
     fCacheAngular.Get()->SetPrimary(GetProjectileRP());
     result = fCacheAngular.Get()->Sample(anEnergy, massCode, targetMass, 
                 theAngularRep, theInterpolation);
     currentMeanEnergy.Put( fCacheAngular.Get()->MeanEnergyOfThisInteraction() );
     fCacheAngular.Get()->ClearHistories();
     
//     delete fAngular; //fix end
     
#endif
   }
 
   //      G4cout << " 0 0 @@@ G4ParticleHPContEnergyAngular::Sample " << result->GetDefinition()->GetParticleName() << " E= " << result->GetKineticEnergy() << G4endl;//GDEB
   return result;
}
 
G4double G4ParticleHPContEnergyAngular::
MeanEnergyOfThisInteraction()
{
   G4double result(0);
   if(currentMeanEnergy.Get()<-1)
   {
     throw G4HadronicException(__FILE__, __LINE__, "G4ParticleHPContEnergyAngular: Logical error in Product class");
   }
   else
   {
     result = currentMeanEnergy.Get();
   }
   currentMeanEnergy.Put( -2 );
   return result;
}
 
 
 
void G4ParticleHPContEnergyAngular::ClearHistories()
{ 
   if ( theAngular!= NULL )
   { 
      for ( G4int i = 0 ; i< nEnergy ; i++ ) 
         theAngular[i].ClearHistories(); 
   } 
}