Gabriele Cosmo
135 lines
5.0 KiB
C++
135 lines
5.0 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// -------------------------------------------------------------------
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//
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// Geant4 Class header file
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//
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// File name: G4PolarizedAnnihilationModel
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//
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// Author: Andreas Schaelicke and Pavel Starovoitov
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//
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// Class Description:
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// Implementation of polarized gamma Annihilation scattering on free electron
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//
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// -------------------------------------------------------------------
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#ifndef G4PolarizedAnnihilationModel_h
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#define G4PolarizedAnnihilationModel_h 1
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#include "globals.hh"
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#include "G4eeToTwoGammaModel.hh"
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#include "G4ThreeVector.hh"
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#include "G4StokesVector.hh"
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class G4DynamicParticle;
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class G4MaterialCutsCouple;
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class G4ParticleChangeForGamma;
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class G4ParticleDefinition;
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class G4PolarizedAnnihilationXS;
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class G4PolarizedAnnihilationModel : public G4eeToTwoGammaModel
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{
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public:
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explicit G4PolarizedAnnihilationModel(
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const G4ParticleDefinition* p = nullptr,
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const G4String& nam = "Polarized-Annihilation");
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virtual ~G4PolarizedAnnihilationModel() override;
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virtual void Initialise(const G4ParticleDefinition*,
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const G4DataVector&) override;
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virtual G4double ComputeCrossSectionPerElectron(G4double kinEnergy) override;
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void ComputeAsymmetriesPerElectron(G4double gammaEnergy, G4double& valueX,
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G4double& valueA, G4double& valueT);
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virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*, G4double tmin,
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G4double maxEnergy) final;
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// polarized routines
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inline void SetTargetPolarization(const G4ThreeVector& pTarget);
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inline void SetBeamPolarization(const G4ThreeVector& pBeam);
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inline const G4ThreeVector& GetTargetPolarization() const;
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inline const G4ThreeVector& GetBeamPolarization() const;
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inline const G4ThreeVector& GetFinalGamma1Polarization() const;
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inline const G4ThreeVector& GetFinalGamma2Polarization() const;
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G4PolarizedAnnihilationModel& operator =(
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const G4PolarizedAnnihilationModel& right) = delete;
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G4PolarizedAnnihilationModel(const G4PolarizedAnnihilationModel&) = delete;
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private:
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G4PolarizedAnnihilationXS* fCrossSectionCalculator;
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G4ParticleChangeForGamma* fParticleChange;
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// incoming
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G4StokesVector fBeamPolarization; // positron
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G4StokesVector fTargetPolarization; // electron
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// outgoing
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G4StokesVector fFinalGamma1Polarization;
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G4StokesVector fFinalGamma2Polarization;
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G4int fVerboseLevel;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4PolarizedAnnihilationModel::SetTargetPolarization(
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const G4ThreeVector& pTarget)
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{
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fTargetPolarization = G4StokesVector(pTarget);
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}
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inline void G4PolarizedAnnihilationModel::SetBeamPolarization(
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const G4ThreeVector& pBeam)
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{
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fBeamPolarization = G4StokesVector(pBeam);
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}
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inline const G4ThreeVector&
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G4PolarizedAnnihilationModel::GetTargetPolarization() const
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{
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return fTargetPolarization;
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}
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inline const G4ThreeVector& G4PolarizedAnnihilationModel::GetBeamPolarization()
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const
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{
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return fBeamPolarization;
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}
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inline const G4ThreeVector&
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G4PolarizedAnnihilationModel::GetFinalGamma1Polarization() const
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{
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return fFinalGamma1Polarization;
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}
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inline const G4ThreeVector&
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G4PolarizedAnnihilationModel::GetFinalGamma2Polarization() const
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{
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return fFinalGamma2Polarization;
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}
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#endif
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