source: trunk/source/processes/hadronic/models/neutron_hp/src/G4NeutronHPorLEInelastic.cc

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//
// 05-11-21 NeutronHP or Low Energy Parameterization Models 
//          Implemented by T. Koi (SLAC/SCCS)
//          If NeutronHP data do not available for an element, then Low Energy 
//          Parameterization models handle the interactions of the element.
//

// neutron_hp -- source file
// J.P. Wellisch, Nov-1996
// A prototype of the low energy neutron transport model.
//
#include "G4NeutronHPorLEInelastic.hh"
//#include "G4NeutronHPInelasticFS.hh"

G4NeutronHPorLEInelastic::G4NeutronHPorLEInelastic()
  :G4HadronicInteraction("NeutronHPorLEInelastic")
{
   SetMinEnergy(0.*eV);
   SetMaxEnergy(20.*MeV);

//   G4NeutronHPInelasticFS * theFS = new G4NeutronHPInelasticFS;
   if(!getenv("G4NEUTRONHPDATA")) 
       throw G4HadronicException(__FILE__, __LINE__, "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files.");
   dirName = getenv("G4NEUTRONHPDATA");
   G4String tString = "/Inelastic/";
   dirName = dirName + tString;
//    G4cout <<"G4NeutronHPorLEInelastic::G4NeutronHPorLEInelastic testit "<<dirName<<G4endl;
   numEle = G4Element::GetNumberOfElements();
   theInelastic = new G4NeutronHPChannelList[numEle];
   unavailable_elements.clear();
   for (G4int i=0; i<numEle; i++)
   {
      theInelastic[i].Init( (*(G4Element::GetElementTable()))[i] , dirName );
      do
      {
       
         try 
         {
            theInelastic[i].Register(&theNFS, "F01"); // has
            theInelastic[i].Register(&theNXFS, "F02");
            theInelastic[i].Register(&the2NDFS, "F03");
            theInelastic[i].Register(&the2NFS, "F04"); // has, E Done
            theInelastic[i].Register(&the3NFS, "F05"); // has, E Done
            theInelastic[i].Register(&theNAFS, "F06");
            theInelastic[i].Register(&theN3AFS, "F07");
            theInelastic[i].Register(&the2NAFS, "F08");
            theInelastic[i].Register(&the3NAFS, "F09");
            theInelastic[i].Register(&theNPFS, "F10");
            theInelastic[i].Register(&theN2AFS, "F11");
            theInelastic[i].Register(&the2N2AFS, "F12");
            theInelastic[i].Register(&theNDFS, "F13");
            theInelastic[i].Register(&theNTFS, "F14");
            theInelastic[i].Register(&theNHe3FS, "F15");
            theInelastic[i].Register(&theND2AFS, "F16");
            theInelastic[i].Register(&theNT2AFS, "F17");
            theInelastic[i].Register(&the4NFS, "F18"); // has, E Done
            theInelastic[i].Register(&the2NPFS, "F19");
            theInelastic[i].Register(&the3NPFS, "F20");
            theInelastic[i].Register(&theN2PFS, "F21");
            theInelastic[i].Register(&theNPAFS, "F22");
            theInelastic[i].Register(&thePFS, "F23");
            theInelastic[i].Register(&theDFS, "F24");
            theInelastic[i].Register(&theTFS, "F25");
            theInelastic[i].Register(&theHe3FS, "F26");
            theInelastic[i].Register(&theAFS, "F27");
            theInelastic[i].Register(&the2AFS, "F28");
            theInelastic[i].Register(&the3AFS, "F29");
            theInelastic[i].Register(&the2PFS, "F30");
            theInelastic[i].Register(&thePAFS, "F31");
            theInelastic[i].Register(&theD2AFS, "F32");
            theInelastic[i].Register(&theT2AFS, "F33");
            theInelastic[i].Register(&thePDFS, "F34");
            theInelastic[i].Register(&thePTFS, "F35");
            theInelastic[i].Register(&theDAFS, "F36");
         } 

         catch ( G4HadronicException )
         {
            unavailable_elements.insert ( (*(G4Element::GetElementTable()))[i]->GetName() ); 
         }
         theInelastic[i].RestartRegistration();
      } 
      while( !theInelastic[i].HasDataInAnyFinalState()); 

   }

//   delete theFS;
   if ( unavailable_elements.size() > 0 ) 
   {
      std::set< G4String>::iterator it;
      G4cout << "HP Inelastic data are not available for thess  elements "<< G4endl;
      for ( it = unavailable_elements.begin() ; it != unavailable_elements.end() ; it++ )
         G4cout << *it << G4endl;
      G4cout << "Low Energy Parameterization Models will be used."<< G4endl;
   }

   createXSectionDataSet();
}
  
G4NeutronHPorLEInelastic::~G4NeutronHPorLEInelastic()
{
   delete [] theInelastic;
   delete theDataSet; 
}
  
#include "G4NeutronHPThermalBoost.hh"
  
G4HadFinalState * G4NeutronHPorLEInelastic::ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& )
{
   G4int it=0;
   const G4Material * theMaterial = aTrack.GetMaterial();
   G4int n = theMaterial->GetNumberOfElements();
   G4int index = theMaterial->GetElement(0)->GetIndex();
   if(n!=1)
   {
      G4int i;
      xSec = new G4double[n];
      G4double sum=0;
      const G4double * NumAtomsPerVolume = theMaterial->GetVecNbOfAtomsPerVolume();
      G4double rWeight;    
      G4NeutronHPThermalBoost aThermalE;
      for (i=0; i<n; i++)
      {
        index = theMaterial->GetElement(i)->GetIndex();
        rWeight = NumAtomsPerVolume[i];
        G4double x = aThermalE.GetThermalEnergy(aTrack, theMaterial->GetElement(i), theMaterial->GetTemperature());

        //xSec[i] = theInelastic[index].GetXsec(aThermalE.GetThermalEnergy(aTrack,
        //                                                                   theMaterial->GetElement(i),
        //                                                                   theMaterial->GetTemperature()));
        xSec[i] = theInelastic[index].GetXsec(x);

        xSec[i] *= rWeight;
        sum+=xSec[i];
      }
      G4double random = G4UniformRand();
      G4double running = 0;
      for (i=0; i<n; i++)
      {
        running += xSec[i];
        index = theMaterial->GetElement(i)->GetIndex();
        it = i;
        if(random<=running/sum) break;
      }
      delete [] xSec;
      // it is element-wise initialised.
    }
    //return theInelastic[index].ApplyYourself(aTrack); 
   return theInelastic[index].ApplyYourself( theMaterial->GetElement(it) , aTrack ); 
}



G4bool G4NeutronHPorLEInelastic::IsThisElementOK( G4String name )
{
   if ( unavailable_elements.find( name ) == unavailable_elements.end() ) 
      return TRUE;
   else 
      return FALSE; 
}



void G4NeutronHPorLEInelastic::createXSectionDataSet()
{
    theDataSet = new G4NeutronHPorLEInelasticData ( theInelastic , &unavailable_elements );
}