// // ******************************************************************** // * License and Disclaimer * // * * // * The Geant4 software is copyright of the Copyright Holders of * // * the Geant4 Collaboration. It is provided under the terms and * // * conditions of the Geant4 Software License, included in the file * // * LICENSE and available at http://cern.ch/geant4/license . These * // * include a list of copyright holders. * // * * // * 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. Please see the license in the file LICENSE and URL above * // * for the full disclaimer and the limitation of liability. * // * * // * This code implementation is the result of the scientific and * // * technical work of the GEANT4 collaboration. * // * By using, copying, modifying or distributing the software (or * // * any work based on the software) you agree to acknowledge its * // * use in resulting scientific publications, and indicate your * // * acceptance of all terms of the Geant4 Software license. * // ******************************************************************** // //////////////////////////////////////////////////////////////////////////////// // Class: G4VEMAdjointModel // Author: L. Desorgher // Organisation: SpaceIT GmbH // // Base class for Adjoint EM model. It is based on the use of direct // G4VEmModel. //////////////////////////////////////////////////////////////////////////////// #ifndef G4VEmAdjointModel_h #define G4VEmAdjointModel_h 1 #include "globals.hh" #include "G4ParticleDefinition.hh" #include "G4VEmModel.hh" class G4AdjointCSMatrix; class G4AdjointCSManager; class G4Material; class G4MaterialCutsCouple; class G4ParticleChange; class G4Region; class G4Track; class G4VEmAdjointModel { public: explicit G4VEmAdjointModel(const G4String& nam); virtual ~G4VEmAdjointModel(); //------------------------------------------------------------------------ // Virtual methods to be implemented for the sample secondaries concrete model //------------------------------------------------------------------------ virtual void SampleSecondaries(const G4Track& aTrack, G4bool isScatProjToProj, G4ParticleChange* fParticleChange) = 0; //------------------------------------------------------------------------ // Methods for adjoint processes //------------------------------------------------------------------------ virtual G4double AdjointCrossSection(const G4MaterialCutsCouple* aCouple, G4double primEnergy, G4bool isScatProjToProj); // The implementation of the DiffCrossSection... here are correct for // energy loss process. For the photoelectric and Compton scattering // the method should be redefined virtual G4double DiffCrossSectionPerAtomPrimToSecond( G4double kinEnergyProj, // kin energy of primary before interaction G4double kinEnergyProd, // kinetic energy of the secondary particle G4double Z, G4double A = 0.); virtual G4double DiffCrossSectionPerAtomPrimToScatPrim( G4double kinEnergyProj, // kin energy of primary before interaction G4double kinEnergyScatProj, // kin energy of primary after interaction G4double Z, G4double A = 0.); virtual G4double DiffCrossSectionPerVolumePrimToSecond( const G4Material* aMaterial, G4double kinEnergyProj, // kin energy of primary before interaction G4double kinEnergyProd // kinetic energy of secondary particle ); virtual G4double DiffCrossSectionPerVolumePrimToScatPrim( const G4Material* aMaterial, G4double kinEnergyProj, // kin energy of primary before interaction G4double kinEnergyScatProj // kinetic energy of primary after interaction ); // Energy limits of adjoint secondary //------------------ virtual G4double GetSecondAdjEnergyMaxForScatProjToProj( G4double primAdjEnergy); virtual G4double GetSecondAdjEnergyMinForScatProjToProj( G4double primAdjEnergy, G4double tcut = 0.); virtual G4double GetSecondAdjEnergyMaxForProdToProj(G4double primAdjEnergy); virtual G4double GetSecondAdjEnergyMinForProdToProj(G4double primAdjEnergy); // Other Methods //--------------- void DefineCurrentMaterial(const G4MaterialCutsCouple* couple); std::vector*> ComputeAdjointCrossSectionVectorPerAtomForSecond(G4double kinEnergyProd, G4double Z, G4double A = 0., G4int nbin_pro_decade = 10); std::vector*> ComputeAdjointCrossSectionVectorPerAtomForScatProj( G4double kinEnergyProd, G4double Z, G4double A = 0., G4int nbin_pro_decade = 10); std::vector*> ComputeAdjointCrossSectionVectorPerVolumeForSecond( G4Material* aMaterial, G4double kinEnergyProd, G4int nbin_pro_decade = 10); std::vector*> ComputeAdjointCrossSectionVectorPerVolumeForScatProj( G4Material* aMaterial, G4double kinEnergyProd, G4int nbin_pro_decade = 10); inline void SetCSMatrices(std::vector* Vec1CSMatrix, std::vector* Vec2CSMatrix) { fCSMatrixProdToProjBackScat = Vec1CSMatrix; fCSMatrixProjToProjBackScat = Vec2CSMatrix; }; inline G4ParticleDefinition* GetAdjointEquivalentOfDirectPrimaryParticleDefinition() const { return fAdjEquivDirectPrimPart; } inline G4ParticleDefinition* GetAdjointEquivalentOfDirectSecondaryParticleDefinition() const { return fAdjEquivDirectSecondPart; } inline G4double GetHighEnergyLimit() const { return fHighEnergyLimit; } inline G4double GetLowEnergyLimit() const { return fLowEnergyLimit; } void SetHighEnergyLimit(G4double aVal); void SetLowEnergyLimit(G4double aVal); inline void DefineDirectEMModel(G4VEmModel* aModel) { fDirectModel = aModel; } void SetAdjointEquivalentOfDirectPrimaryParticleDefinition( G4ParticleDefinition* aPart); inline void SetAdjointEquivalentOfDirectSecondaryParticleDefinition( G4ParticleDefinition* aPart) { fAdjEquivDirectSecondPart = aPart; } inline void SetSecondPartOfSameType(G4bool aBool) { fSecondPartSameType = aBool; } inline G4bool GetSecondPartOfSameType() const { return fSecondPartSameType; } inline void SetUseMatrix(G4bool aBool) { fUseMatrix = aBool; } inline void SetUseMatrixPerElement(G4bool aBool) { fUseMatrixPerElement = aBool; } inline void SetUseOnlyOneMatrixForAllElements(G4bool aBool) { fOneMatrixForAllElements = aBool; } inline void SetApplyCutInRange(G4bool aBool) { fApplyCutInRange = aBool; } inline G4bool GetUseMatrix() const { return fUseMatrix; } inline G4bool GetUseMatrixPerElement() const { return fUseMatrixPerElement; } inline G4bool GetUseOnlyOneMatrixForAllElements() const { return fOneMatrixForAllElements; } inline G4bool GetApplyCutInRange() const { return fApplyCutInRange; } inline const G4String& GetName() const { return fName; } inline virtual void SetCSBiasingFactor(G4double aVal) { fCsBiasingFactor = aVal; } inline void SetCorrectWeightForPostStepInModel(G4bool aBool) { fInModelWeightCorr = aBool; } inline void SetAdditionalWeightCorrectionFactorForPostStepOutsideModel( G4double factor) { fOutsideWeightFactor = factor; } G4VEmAdjointModel(G4VEmAdjointModel&) = delete; G4VEmAdjointModel& operator=(const G4VEmAdjointModel& right) = delete; protected: G4double DiffCrossSectionFunction1(G4double kinEnergyProj); G4double DiffCrossSectionFunction2(G4double kinEnergyProj); // General methods to sample secondary energy G4double SampleAdjSecEnergyFromCSMatrix(std::size_t MatrixIndex, G4double prim_energy, G4bool isScatProjToProj); G4double SampleAdjSecEnergyFromCSMatrix(G4double prim_energy, G4bool isScatProjToProj); void SelectCSMatrix(G4bool isScatProjToProj); virtual G4double SampleAdjSecEnergyFromDiffCrossSectionPerAtom( G4double prim_energy, G4bool isScatProjToProj); // Post Step weight correction virtual void CorrectPostStepWeight(G4ParticleChange* fParticleChange, G4double old_weight, G4double adjointPrimKinEnergy, G4double projectileKinEnergy, G4bool isScatProjToProj); G4AdjointCSManager* fCSManager; G4VEmModel* fDirectModel = nullptr; const G4String fName; G4Material* fSelectedMaterial = nullptr; G4Material* fCurrentMaterial = nullptr; G4MaterialCutsCouple* fCurrentCouple = nullptr; // particle definition G4ParticleDefinition* fAdjEquivDirectPrimPart = nullptr; G4ParticleDefinition* fAdjEquivDirectSecondPart = nullptr; G4ParticleDefinition* fDirectPrimaryPart = nullptr; // adjoint CS matrix for each element or material std::vector* fCSMatrixProdToProjBackScat = nullptr; std::vector* fCSMatrixProjToProjBackScat = nullptr; std::vector fElementCSScatProjToProj; std::vector fElementCSProdToProj; G4double fKinEnergyProdForIntegration = 0.; G4double fKinEnergyScatProjForIntegration = 0.; G4double fLastCS = 0.; G4double fLastAdjointCSForScatProjToProj = 0.; G4double fLastAdjointCSForProdToProj = 0.; G4double fPreStepEnergy = 0.; G4double fTcutPrim = 0.; G4double fTcutSecond = 0.; // Energy limits G4double fHighEnergyLimit = 0.; G4double fLowEnergyLimit = 0.; // Cross Section biasing factor G4double fCsBiasingFactor = 1.; // [1] This is needed for the forced interaction where part of the weight // correction is given outside the model while the secondary are created in // the model. The weight should be fixed before adding the secondary G4double fOutsideWeightFactor = 1.; // Needed for CS integration at the initialisation phase G4int fASelectedNucleus = 0; G4int fZSelectedNucleus = 0; std::size_t fCSMatrixUsed = 0; // Index of crosssection matrices used G4bool fSecondPartSameType = false; G4bool fInModelWeightCorr = false; // correct_weight_for_post_step_in_model, see [1] G4bool fApplyCutInRange = true; // Type of Model with Matrix or not G4bool fUseMatrix = false; G4bool fUseMatrixPerElement = false; // other possibility is per Material G4bool fOneMatrixForAllElements = false; }; #endif