G4ParticleHPDiscreteTwoBody.hh

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// P. Arce, June-2014 Conversion neutron_hp to particle_hp
//
#ifndef G4ParticleHPDiscreteTwoBody_h
#define G4ParticleHPDiscreteTwoBody_h 1

//101110 Bug fix in MF=6, LAW=2 case; contribution from E. Mendoza, D. Cano-Ott (CIEMAT)

#include "G4ios.hh"
#include <fstream>
#include "globals.hh"
#include "G4VParticleHPEnergyAngular.hh"
#include "G4ParticleHPLegendreTable.hh"
#include "G4ParticleHPInterpolator.hh"
#include "G4InterpolationManager.hh"

class G4ParticleHPDiscreteTwoBody : public G4VParticleHPEnergyAngular
{
  public:
  
  G4ParticleHPDiscreteTwoBody()
  {
    theCoeff = 0;
    bCheckDiffCoeffRepr = true;
    if ( getenv( "G4PHP_DO_NOT_CHECK_DIFF_COEFF_REPR" ) ) bCheckDiffCoeffRepr = false;
    nEnergy = 0;
  }
  ~G4ParticleHPDiscreteTwoBody()
  {
    if(theCoeff!=0) delete [] theCoeff;
  }
  
  void Init(std::istream & aDataFile)
  {
    aDataFile >> nEnergy;
    theManager.Init(aDataFile);
    theCoeff = new G4ParticleHPLegendreTable[nEnergy];
    for(G4int i=0; i<nEnergy; i++)
    {
      G4double energy;
      G4int aRep, nCoeff;
      aDataFile >> energy >> aRep >> nCoeff;
      //-      G4cout << this << " " << i << " G4ParticleHPDiscreteTwoBody READ DATA " << energy << " " << aRep << " " << nCoeff << G4endl;
      energy*=CLHEP::eV;
      G4int nPoints=nCoeff;
      if(aRep>0) nPoints*=2;
      //theCoeff[i].Init(energy, nPoints);

      theCoeff[i].Init(energy, nPoints-1);
      theCoeff[i].SetRepresentation(aRep);
      for(G4int ii=0; ii<nPoints; ii++)
      {
        G4double y;
        aDataFile >> y;
        theCoeff[i].SetCoeff(ii, y);
       }
    }
  }
    
  G4ReactionProduct * Sample(G4double anEnergy, G4double massCode, G4double mass);
  G4double MeanEnergyOfThisInteraction() { return -1; }
  
  private:
  
  G4int nEnergy;
  G4InterpolationManager theManager; // knows the interpolation between stores
  G4ParticleHPLegendreTable * theCoeff;
    
  private:
  
  G4ParticleHPInterpolator theInt;

  G4bool bCheckDiffCoeffRepr; // for example ENDF-VII0_proton/Inelastic/F01/4_9_Beryllium has 0 for energy 7.5E+07 and 12 for energy 1.e+08
};
#endif