G4NucLevel.hh

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// $Id: G4NucLevel.hh 88516 2015-02-25 11:00:16Z vnivanch $
//
// -------------------------------------------------------------------
//
//      GEANT4 header file 
//
//      File name:     G4NucLevel
//
//      Author:        V.Ivanchenko
// 
//      Creation date: 4 January 2012
//
//      Modifications:
//      
// -------------------------------------------------------------------
//
//  Container class keeping information about gamma transition
//  and for a given nuclear level
//

#ifndef G4NUCLEVEL_HH
#define G4NUCLEVEL_HH 1

#include "globals.hh"
#include <assert.h>
#include <vector>

class G4NucLevel 
{
public:

  G4NucLevel(const std::vector<G4float>& eTransition,
             const std::vector<G4float>& wLevelGamma,
             const std::vector<G4float>& wLevelGammaE,
             const std::vector<G4float>& wGamma,
             const std::vector<G4int>&   vTrans,
             const std::vector<const std::vector<G4float>*>& wShell);

  ~G4NucLevel();

  inline size_t NumberOfTransitions() const;

  inline G4bool IsXLevel() const;

  inline G4float FinalExcitationEnergy(size_t idx) const;

  inline G4float GammaProbability(size_t idx) const;

  inline G4int TransitionType(size_t idx) const;

  inline size_t SampleGammaTransition(G4double rndm) const;

  inline size_t SampleGammaETransition(G4double rndm) const;

  inline size_t SampleShell(size_t idx, G4double rndm) const;

private:  

  G4NucLevel(const G4NucLevel &right);
  G4bool operator==(const G4NucLevel &right) const;
  G4bool operator!=(const G4NucLevel &right) const;
  G4bool operator<(const G4NucLevel &right) const;
  const G4NucLevel& operator=(const G4NucLevel &right);
  
  std::vector<G4float>  fFinalEnergy;
  std::vector<G4float>  fGammaCumProbability;
  std::vector<G4float>  fGammaECumProbability;
  std::vector<G4float>  fGammaProbability;
  std::vector<G4int>    fTrans;
  const std::vector<const std::vector<G4float>*> fShellProbability;
  size_t length;
};

inline size_t G4NucLevel::NumberOfTransitions() const
{
  return length;
}

inline G4bool G4NucLevel::IsXLevel() const
{
  return (1 == fTrans[0]);
}

inline G4float G4NucLevel::FinalExcitationEnergy(size_t idx) const
{
  assert(idx < length);
  return fFinalEnergy[idx];
}

inline G4float G4NucLevel::GammaProbability(size_t idx) const
{
  assert(idx < length);
  return fGammaProbability[idx];
}

inline G4int G4NucLevel::TransitionType(size_t idx) const
{
  assert(idx < length);
  return fTrans[idx];
}

inline size_t G4NucLevel::SampleGammaTransition(G4double rndm) const
{
  G4float x = (G4float)rndm;
  size_t idx = 0;
  for(; idx<length; ++idx) { 
    if(x <= fGammaCumProbability[idx]) { break; } 
  }
  return idx;
}

inline size_t G4NucLevel::SampleGammaETransition(G4double rndm) const
{
  G4float x = (G4float)rndm;
  size_t idx = 0;
  for(; idx<length; ++idx) { 
    if(x <= fGammaECumProbability[idx]) { break; } 
  }
  return idx;
}

inline size_t G4NucLevel::SampleShell(size_t idx, G4double rndm) const
{
  assert(idx < length);
  const std::vector<G4float>* prob = fShellProbability[idx];
  size_t i = 0;
  if(prob) {
    size_t nn = prob->size();
    G4float x = (G4float)rndm;
    for(; i<nn; ++i) { if(x <= (*prob)[i]) { break; } }
  } 
  return i;
}

#endif