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geant4/source/processes/electromagnetic/standard/include/G4eeToTwoGammaModel.hh
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//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in: *
// * http://cern.ch/geant4/license *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. *
// * *
// * This code implementation is the intellectual property of the *
// * GEANT4 collaboration. *
// * By copying, distributing or modifying the Program (or any work *
// * based on the Program) you indicate your acceptance of this *
// * statement, and all its terms. *
// ********************************************************************
//
// $Id: G4eeToTwoGammaModel.hh,v 1.4 2004/11/22 03:04:24 vnivanch Exp $
// GEANT4 tag $Name: geant4-07-00-cand-01 $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name: G4eeToTwoGammaModel
//
// Author: Vladimir Ivanchenko on base of Michel Maire code
//
// Creation date: 02.08.2004
//
// Modifications:
//
//
// Class Description:
//
// Implementation of e+ annihilation into 2 gamma
// -------------------------------------------------------------------
//
#ifndef G4eeToTwoGammaModel_h
#define G4eeToTwoGammaModel_h 1
#include "G4VEmModel.hh"
class G4eeToTwoGammaModel : public G4VEmModel
{
public:
G4eeToTwoGammaModel(const G4ParticleDefinition* p = 0, const G4String& nam = "eplus2gg");
virtual ~G4eeToTwoGammaModel();
void Initialise(const G4ParticleDefinition*, const G4DataVector&);
G4double HighEnergyLimit(const G4ParticleDefinition*);
G4double LowEnergyLimit(const G4ParticleDefinition*);
void SetHighEnergyLimit(G4double e) {highKinEnergy = e;};
void SetLowEnergyLimit(G4double e) {lowKinEnergy = e;};
G4double MinEnergyCut(const G4ParticleDefinition*,
const G4MaterialCutsCouple*);
G4bool IsInCharge(const G4ParticleDefinition*);
G4double ComputeDEDX(const G4MaterialCutsCouple*,
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy);
G4double CrossSection(const G4MaterialCutsCouple*,
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy,
G4double maxEnergy);
G4DynamicParticle* SampleSecondary(
const G4MaterialCutsCouple*,
const G4DynamicParticle*,
G4double tmin,
G4double maxEnergy);
std::vector<G4DynamicParticle*>* SampleSecondaries(
const G4MaterialCutsCouple*,
const G4DynamicParticle*,
G4double tmin,
G4double maxEnergy);
G4double MaxSecondaryEnergy(const G4DynamicParticle*);
protected:
G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
G4double kinEnergy);
private:
// hide assignment operator
G4eeToTwoGammaModel & operator=(const G4eeToTwoGammaModel &right);
G4eeToTwoGammaModel(const G4eeToTwoGammaModel&);
G4double highKinEnergy;
G4double lowKinEnergy;
G4double pi_rcl2;
};
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
inline G4double G4eeToTwoGammaModel::MaxSecondaryEnergy(
const G4ParticleDefinition*,
G4double kinEnergy)
{
return kinEnergy;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
inline G4double G4eeToTwoGammaModel::MaxSecondaryEnergy(const G4DynamicParticle* dp)
{
return dp->GetKineticEnergy();
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
#endif