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// $Id$
//

#ifndef G4DNARuddIonisationModel_h
#define G4DNARuddIonisationModel_h 1

#include "G4VEmModel.hh"
#include "G4ParticleChangeForGamma.hh"
#include "G4ProductionCutsTable.hh"

#include "G4DNAGenericIonsManager.hh"
#include "G4DNACrossSectionDataSet.hh"
#include "G4Electron.hh"
#include "G4Proton.hh"
#include "G4LogLogInterpolation.hh"

#include "G4DNAWaterIonisationStructure.hh"
#include "G4VAtomDeexcitation.hh"
#include "G4NistManager.hh"

class G4DNARuddIonisationModel : public G4VEmModel
{

public:

  G4DNARuddIonisationModel(const G4ParticleDefinition* p = 0, 
		           const G4String& nam = "DNARuddIonisationModel");

  virtual ~G4DNARuddIonisationModel();

  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);

  virtual G4double CrossSectionPerVolume(  const G4Material* material,
					   const G4ParticleDefinition* p,
					   G4double ekin,
					   G4double emin,
					   G4double emax);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
				 const G4MaterialCutsCouple*,
				 const G4DynamicParticle*,
				 G4double tmin,
				 G4double maxEnergy);

protected:

  G4ParticleChangeForGamma* fParticleChangeForGamma;

private:
  // Water density table
  const std::vector<G4double>* fpWaterDensity;

  //deexcitation manager to produce fluo photns and e-
  G4VAtomDeexcitation*      fAtomDeexcitation;

  std::map<G4String,G4double,std::less<G4String> > lowEnergyLimit;
  std::map<G4String,G4double,std::less<G4String> > highEnergyLimit;

  G4double lowEnergyLimitForZ1; 
  G4double lowEnergyLimitForZ2; 
  G4double lowEnergyLimitOfModelForZ1; 
  G4double lowEnergyLimitOfModelForZ2; 
  G4double killBelowEnergyForZ1; 
  G4double killBelowEnergyForZ2; 

  G4bool isInitialised;
  G4int verboseLevel;
  
  // Cross section

  typedef std::map<G4String,G4String,std::less<G4String> > MapFile;
  MapFile tableFile;

  typedef std::map<G4String,G4DNACrossSectionDataSet*,std::less<G4String> > MapData;
  MapData tableData;
  
  // Final state
  
  G4DNAWaterIonisationStructure waterStructure;

  G4double RandomizeEjectedElectronEnergy(G4ParticleDefinition* particleDefinition, 
					  G4double incomingParticleEnergy, 
					  G4int shell);

  void RandomizeEjectedElectronDirection(G4ParticleDefinition* particleDefinition, 
					 G4double incomingParticleEnergy, 
					 G4double outgoingParticleEnergy, 
					 G4double & cosTheta, 
					 G4double & phi);
   
  G4double  DifferentialCrossSection(G4ParticleDefinition* particleDefinition, 
				   G4double k, 
				   G4double energyTransfer, 
				   G4int shell);

  G4double CorrectionFactor(G4ParticleDefinition* particleDefinition, G4double k);

  G4double S_1s(G4double t, 
		G4double energyTransferred, 
		G4double slaterEffectiveChg, 
		G4double shellNumber);

  G4double S_2s(G4double t, 
		G4double energyTransferred, 
		G4double slaterEffectiveChg, 
		G4double shellNumber);


  G4double S_2p(G4double t, 
		G4double energyTransferred, 
		G4double slaterEffectiveChg, 
		G4double shellNumber);

  G4double R(G4double t, 
	     G4double energyTransferred, 
	     G4double slaterEffectiveChg, 
	     G4double shellNumber) ;

  G4double slaterEffectiveCharge[3];
  G4double sCoefficient[3];
  
  // Partial cross section
  
  G4double PartialCrossSection(const G4Track& track);
			
  G4double Sum(G4double energy, const G4String& particle);

  G4int RandomSelect(G4double energy,const G4String& particle );
  
  //
   
  G4DNARuddIonisationModel & operator=(const  G4DNARuddIonisationModel &right);
  G4DNARuddIonisationModel(const  G4DNARuddIonisationModel&);

};

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

#endif