source: trunk/source/processes/electromagnetic/standard/include/G4ionGasIonisation.hh @ 846

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// $Id: G4ionGasIonisation.hh,v 1.2 2007/08/13 06:13:30 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-01-patch-02 $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4ionGasIonisation
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 23.07.2007
//
// Modifications:
//
//
// Class Description:
//
// This class manages the ionisation process for ions. It inherites 
// from G4ionIonisation and sample ion/media charge exchange
//

// -------------------------------------------------------------------
//

#ifndef G4ionGasIonisation_h
#define G4ionGasIonisation_h 1

#include "G4ionIonisation.hh"

class G4Material;

class G4ionGasIonisation : public G4ionIonisation
{
public:

  G4ionGasIonisation(const G4String& name = "ionGasIoni");

  virtual ~G4ionGasIonisation();

  virtual void PrintInfo();

protected:

  // Initialise process before run
  virtual void InitialiseEnergyLossProcess(
                                   const G4ParticleDefinition*,
                                   const G4ParticleDefinition*);

  // Initialise dynamic charge before step
  virtual void InitialiseMassCharge(const G4Track&);

  // Apply correction after step and modify dynamic charge
  virtual void CorrectionsAlongStep(
                           const G4MaterialCutsCouple*,
                           const G4DynamicParticle*,
                                 G4double& eloss,
                                 G4double& length);

private:

  // Sample change of charge of the projectile ion
  G4double SampleChargeAfterStep(G4double qeff, G4double xeff);

  // hide assignment operator
  G4ionGasIonisation & operator=(const G4ionGasIonisation &right);
  G4ionGasIonisation(const G4ionGasIonisation&);

  const G4ParticleDefinition* currParticle;
  const G4ParticleDefinition* baseParticle;

  G4double                    basePartMass;
  G4double                    currMassRatio;
  G4double                    atomXS;
  G4double                    preStepKinEnergy;

  G4int                       currentIonZ;
  G4int                       ionZ;

  G4bool                      initialised;

};

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#endif