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// $Id: G4AdjointhMultipleScattering.hh,v 1.2 2009/11/20 10:31:20 ldesorgh Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
/////////////////////////////////////////////////////////////////////////////////
//      Class:		G4AdjointhMultipleScattering
//	Author:       	L. Desorgher
// 	Organisation: 	SpaceIT GmbH
//	Contract:	ESA contract 21435/08/NL/AT
// 	Customer:     	ESA/ESTEC
/////////////////////////////////////////////////////////////////////////////////
//
// GEANT4 Class header file
//
// File name:     G4AdjointhMultipleScattering
//
// Author:        Desorgher Laurent
//
// Creation date: 03.06.2009 cloned from G4hMultipleScattering by U.Laszlo with slight modification for adjoint_ion. 
//
//
//------------------------------------------------------------------------------
/////////////////////////////////////////////////////////////////////////////////
//
// CHANGE HISTORY
// --------------
//      ChangeHistory: 
//	 	03.06.2009  Creation by L. Desorgher. Cloned from G4hMultipleScattering by U.Laszlo with slight modifications.	  		
//		09.11.2009  Remove 	AlongStepGetPhysicalInteractionLength, to call the one of the base class.
//-------------------------------------------------------------
//	Documentation:
//		The class simulates the multiple scattering for adjoint proton of charged particle. In this approximate implementation the reverse multiple scattering 
//		is the same than the foward one. This should be changed in the future to have the MultipleScaterring computed for the energy  at the end of the step 
//		and not before the step. 
//


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#ifndef G4AdjointhMultipleScattering_h
#define G4AdjointhMultipleScattering_h 1

#include "G4VMultipleScattering.hh"

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class G4VMscModel;

class G4AdjointhMultipleScattering : public G4VMultipleScattering

{
public:    // with description

  G4AdjointhMultipleScattering(const G4String& processName="msc");

  virtual ~G4AdjointhMultipleScattering();

  // returns true for charged particles, false otherwise
  G4bool IsApplicable (const G4ParticleDefinition& p);

  // PrG4int few lines of informations about the process: validity range,
  void PrintInfo();

  // geom. step length distribution should be sampled or not
  void Setsamplez(G4bool value) { samplez = value;};

  // to reduce the energy/step dependence
  void Setdtrl(G4double value) { dtrl = value;};

  // 'soften' step limitation above lambdalimit
  void SetLambdalimit(G4double value) { lambdalimit = value;};

 /* // The function overloads the corresponding function of the base
  // class.It limits the step near to boundaries only
  // and invokes the method GetMscContinuousStepLimit at every step.
  G4double AlongStepGetPhysicalInteractionLength(
                                            const G4Track&,
					    G4double  previousStepSize,
					    G4double  currentMinimalStep,
					    G4double& currentSafety,
					    G4GPILSelection* selection);
	*/				    

protected:

  // This function initialise models
  void InitialiseProcess(const G4ParticleDefinition*);

private:        // data members

  G4VMscModel* mscUrban;

  G4double lambdalimit;
  G4double dtrl;

  G4bool   samplez;
  G4bool   isInitialized;
  G4bool   isIon;

};

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#endif
