G4ParticleHPEvapSpectrum.hh

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//
// P. Arce, June-2014 Conversion neutron_hp to particle_hp
//
#ifndef G4ParticleHPEvapSpectrum_h
#define G4ParticleHPEvapSpectrum_h 1

#include <fstream>
#include <CLHEP/Units/SystemOfUnits.h>

#include "globals.hh"
#include "G4ios.hh"
#include "Randomize.hh"
#include "G4ParticleHPVector.hh"
#include "G4VParticleHPEDis.hh"

// we will need a List of these .... one per term.

class G4ParticleHPEvapSpectrum : public G4VParticleHPEDis
{
  public:
  G4ParticleHPEvapSpectrum()
  {
  }
  ~G4ParticleHPEvapSpectrum()
  {
  }
  
  inline void Init(std::istream & aDataFile)
  {
    theFractionalProb.Init(aDataFile);
    theThetaDist.Init(aDataFile);
    theXDist.Init(aDataFile);
  }
  
  inline G4double GetFractionalProbability(G4double anEnergy)
  {
    return theFractionalProb.GetY(anEnergy);
  }
  
  inline G4double Sample(G4double anEnergy) 
  {
    // when this is called, theFractionalProb was used, and 'k' is sorted out already.
    G4double x = theXDist.Sample();
    G4double theta = theThetaDist.GetY(anEnergy);
    G4double result = x*theta;
    return result*CLHEP::eV;
  }
  
  private:
  
  G4ParticleHPVector theFractionalProb;
  
  G4ParticleHPVector theThetaDist;
  G4ParticleHPVector theXDist;
  
};

#endif