Gabriele Cosmo
106 lines
4.2 KiB
C++
106 lines
4.2 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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// Author: Sebastien Incerti
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// 30 October 2008
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// on base of G4LowEnergyPolarizedRayleigh developed by R. Capra
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//
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#ifndef G4LivermorePolarizedRayleighModel_h
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#define G4LivermorePolarizedRayleighModel_h 1
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#include "G4VEmModel.hh"
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#include "G4ParticleChangeForGamma.hh"
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#include "G4PhysicsFreeVector.hh"
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#include "G4ProductionCutsTable.hh"
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class G4LivermorePolarizedRayleighModel : public G4VEmModel
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{
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public:
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explicit G4LivermorePolarizedRayleighModel(
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const G4ParticleDefinition* p = nullptr,
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const G4String& nam = "LivermorePolarizedRayleigh");
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virtual ~G4LivermorePolarizedRayleighModel();
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void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
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void InitialiseLocal(const G4ParticleDefinition*,
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G4VEmModel* masterModel) override;
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void InitialiseForElement(const G4ParticleDefinition*, G4int Z) override;
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G4double ComputeCrossSectionPerAtom(
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const G4ParticleDefinition*,
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G4double kinEnergy,
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G4double Z,
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G4double A=0,
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G4double cut=0,
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G4double emax=DBL_MAX) override;
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void SampleSecondaries(std::vector<G4DynamicParticle*>*,
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy) override;
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G4LivermorePolarizedRayleighModel & operator=
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(const G4LivermorePolarizedRayleighModel &right) = delete;
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G4LivermorePolarizedRayleighModel(const G4LivermorePolarizedRayleighModel&) = delete;
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private:
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//cross sections
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void ReadData(size_t Z, const char* path = nullptr);
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// Polarization
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// Generates \f$cos \left ( \theta\right )\f$ of the scattered photon
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// incomingPhotonEnergy The energy of the incoming photon
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// zAtom Atomic number
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// \f$cos \left ( \theta\right )\f$
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G4double GenerateCosTheta(G4double incomingPhotonEnergy, G4int zAtom) const;
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// Generates \f$\phi\f$ of the scattered photon
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// cosTheta \f$cos \left ( \theta\right )\f$ of the scattered photon
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// \f$\phi\f$
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G4double GeneratePhi(G4double cosTheta) const;
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// Generates the polarization direction \f$\beta\f$ in the plane x, y relative to the x direction
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// \f$\beta\f$
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G4double GeneratePolarizationAngle(void) const;
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G4ThreeVector GetPhotonPolarization(const G4DynamicParticle& photon);
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G4ParticleChangeForGamma* fParticleChange;
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const G4int maxZ = 100;
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static G4PhysicsFreeVector* dataCS[101];
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static G4PhysicsFreeVector* formFactorData[101];
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G4double lowEnergyLimit;
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G4int verboseLevel;
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G4bool isInitialised;
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};
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#endif
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