G4EmSaturation.hh

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// $Id$
//
//
#ifndef G4EmSaturation_h
#define G4EmSaturation_h 1
 
// -------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4EmSaturation
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 18.02.2008
//
// Modifications:
//
//
// Class Description:
//   Compution on saturation effect, which reduce visible energy 
//   deposition at the step. Default implementation takes into 
//   account Birks effect. Birks coefficients for some materials
//   from G4 database on materials are provided
// 
// -------------------------------------------------------------
 
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#include "globals.hh"
#include "G4Step.hh"
#include "G4ParticleDefinition.hh"
#include <vector>
 
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class G4LossTableManager;
class G4NistManager;
class G4MaterialCutsCouple;
class G4Material;
 
class G4EmSaturation
{
public: 
 
  G4EmSaturation();
  virtual ~G4EmSaturation();
 
  G4double VisibleEnergyDeposition(const G4ParticleDefinition*, 
                   const G4MaterialCutsCouple*,
                   G4double length, 
                   G4double edepTotal,
                   G4double edepNIEL = 0.0);
 
  inline G4double VisibleEnergyDeposition(const G4Step*); 
 
  // find and Birks coefficient 
  G4double FindG4BirksCoefficient(const G4Material*);
 
  inline void SetVerbose(G4int);
 
  // dump coeffitients used in run time
  void DumpBirksCoefficients();
 
  // dump G4 list
  void DumpG4BirksCoefficients();
 
private:
 
  // hide assignment operator
  G4EmSaturation & operator=(const G4EmSaturation &right);
  G4EmSaturation(const G4EmSaturation&);
 
  G4double FindBirksCoefficient(const G4Material*);
 
  void Initialise();
 
  const G4ParticleDefinition* electron;
  const G4ParticleDefinition* proton;
  G4LossTableManager*         manager;
  G4NistManager*              nist;
 
  // cash
  const G4Material*           curMaterial;
  G4double                    curBirks;
  G4double                    curRatio;
  G4double                    curChargeSq;
 
  G4int    verbose;             
  G4int    nMaterials;
  G4int    nG4Birks;
 
  // list of materials used in run time
  std::vector<const G4Material*>    matPointers;
  std::vector<G4String>             matNames;
  std::vector<G4double>             massFactors;
  std::vector<G4double>             effCharges;
 
  // list of G4 materials 
  std::vector<G4double>             g4MatData;
  std::vector<G4String>             g4MatNames;
 
};
 
inline void G4EmSaturation::SetVerbose(G4int val)
{
  verbose = val;
}
 
inline G4double G4EmSaturation::VisibleEnergyDeposition(
                const G4Step* step)
{
  G4Track* track = step->GetTrack();
  return VisibleEnergyDeposition(track->GetParticleDefinition(),
                                 track->GetMaterialCutsCouple(),
                 step->GetStepLength(),
                                 step->GetTotalEnergyDeposit(),
                                 step->GetNonIonizingEnergyDeposit());
}
 
#endif