G4BohrFluctuations.hh

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// $Id: G4BohrFluctuations.hh 96934 2016-05-18 09:10:41Z gcosmo $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4BohrFluctuations
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 02.04.2003
//
// Modifications: 
//
// 16-10-03 Changed interface to Initialisation (V.Ivanchenko)
//
// Class Description:
//
// Implementation of Gaussion energy loss Fluctuations

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

#ifndef G4BohrFluctuations_h
#define G4BohrFluctuations_h 1


#include "G4VEmFluctuationModel.hh"
#include "G4Material.hh"
#include "G4DynamicParticle.hh"

class G4BohrFluctuations : public G4VEmFluctuationModel
{

public:

  explicit G4BohrFluctuations(const G4String& nam = "BohrFluc");

  virtual ~G4BohrFluctuations();

  virtual G4double SampleFluctuations(const G4MaterialCutsCouple*,
                                      const G4DynamicParticle*,
                                      G4double, G4double, G4double) override;

  virtual G4double Dispersion(const G4Material*,
                              const G4DynamicParticle*,
                              G4double, G4double) override;

  virtual void InitialiseMe(const G4ParticleDefinition*) override;

private:

  // hide assignment operator
  G4BohrFluctuations & operator=(const  G4BohrFluctuations &right) = delete;
  G4BohrFluctuations(const  G4BohrFluctuations&) = delete;

  const G4ParticleDefinition* particle;

  G4double particleMass;
  G4double chargeSquare;

  G4double minNumberInteractionsBohr;
  G4double minFraction;
  G4double xmin;
  G4double minLoss;
  // cash
  G4double kineticEnergy;
  G4double beta2;
};

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#endif