Gabriele Cosmo
268 lines
11 KiB
C++
268 lines
11 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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// Class: G4AdjointCSManager
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// Author: L. Desorgher
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// Organisation: SpaceIT GmbH
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// Contract: ESA contract 21435/08/NL/AT
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// Customer: ESA/ESTEC
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/////////////////////////////////////////////////////////////////////////////////
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//
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// CHANGE HISTORY
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// --------------
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// ChangeHistory:
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// 1st April 2007 creation by L. Desorgher
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//
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// September-October 2009. Implementation of the mode where the adjoint cross sections are scaled such that the total used adjoint cross sections is in
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// most of the cases equal to the total forward cross section. L.Desorgher
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//
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//-------------------------------------------------------------
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// Documentation:
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// Is responsible for the management of all adjoint cross sections matrices, and for the computation of the total forward and adjoint cross sections.
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// Total adjoint and forward cross sections are needed to correct the weight of a particle after a tracking step or after the occurrence of a reverse reaction.
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// It is also used to sample an adjoint secondary from a given adjoint cross section matrix.
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//
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#ifndef G4AdjointCSManager_h
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#define G4AdjointCSManager_h 1
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#include"globals.hh"
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#include<vector>
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#include"G4AdjointCSMatrix.hh"
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#include "G4ThreadLocalSingleton.hh"
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class G4VEmAdjointModel;
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class G4MaterialCutsCouple;
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class G4Material;
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class G4ParticleDefinition;
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class G4Element;
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class G4VEmProcess;
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class G4VEnergyLossProcess;
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class G4PhysicsTable;
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////////////////////////////////////////////////////////////////////////////////
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//
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class G4AdjointCSManager
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{
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friend class G4ThreadLocalSingleton<G4AdjointCSManager>;
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public:
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~G4AdjointCSManager();
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static G4AdjointCSManager* GetAdjointCSManager();
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public:
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G4int GetNbProcesses();
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//Registration of the different models and processes
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size_t RegisterEmAdjointModel(G4VEmAdjointModel*);
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void RegisterEmProcess(G4VEmProcess* aProcess, G4ParticleDefinition* aPartDef);
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void RegisterEnergyLossProcess(G4VEnergyLossProcess* aProcess, G4ParticleDefinition* aPartDef);
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void RegisterAdjointParticle(G4ParticleDefinition* aPartDef);
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//Building of the CS Matrices and Total Forward and Adjoint LambdaTables
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//----------------------------------------------------------------------
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void BuildCrossSectionMatrices();
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void BuildTotalSigmaTables();
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//Get TotalCrossSections form Total Lambda Tables, Needed for Weight correction and scaling of the
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//-------------------------------------------------
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G4double GetTotalAdjointCS(G4ParticleDefinition* aPartDef, G4double Ekin,
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const G4MaterialCutsCouple* aCouple);
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G4double GetTotalForwardCS(G4ParticleDefinition* aPartDef, G4double Ekin,
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const G4MaterialCutsCouple* aCouple);
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G4double GetAdjointSigma(G4double Ekin_nuc, size_t index_model,G4bool is_scat_proj_to_proj,
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const G4MaterialCutsCouple* aCouple);
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void GetEminForTotalCS(G4ParticleDefinition* aPartDef,
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const G4MaterialCutsCouple* aCouple, G4double& emin_adj, G4double& emin_fwd);
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void GetMaxFwdTotalCS(G4ParticleDefinition* aPartDef,
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const G4MaterialCutsCouple* aCouple, G4double& e_sigma_max, G4double& sigma_max);
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void GetMaxAdjTotalCS(G4ParticleDefinition* aPartDef,
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const G4MaterialCutsCouple* aCouple, G4double& e_sigma_max, G4double& sigma_max);
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//CrossSection Correction 1 or FwdCS/AdjCS following the G4boolean value of forward_CS_is_used and forward_CS_mode
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//-------------------------------------------------
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G4double GetCrossSectionCorrection(G4ParticleDefinition* aPartDef,G4double PreStepEkin,const G4MaterialCutsCouple* aCouple, G4bool& fwd_is_used, G4double& fwd_TotCS);
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//Cross section mode
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//------------------
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inline void SetFwdCrossSectionMode(G4bool aBool){forward_CS_mode=aBool;}
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//Weight correction
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//------------------
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G4double GetContinuousWeightCorrection(G4ParticleDefinition* aPartDef, G4double PreStepEkin,G4double AfterStepEkin,
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const G4MaterialCutsCouple* aCouple, G4double step_length);
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G4double GetPostStepWeightCorrection();
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//Method Called by the adjoint model to get there CS, if not precised otherwise
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//-------------------------------
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G4double ComputeAdjointCS(G4Material* aMaterial,
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G4VEmAdjointModel* aModel,
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G4double PrimEnergy,
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G4double Tcut,
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G4bool IsScatProjToProjCase,
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std::vector<G4double>&
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AdjointCS_for_each_element);
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//Method Called by the adjoint model to sample the secondary energy form the CS matrix
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//--------------------------------------------------------------------------------
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G4Element* SampleElementFromCSMatrices(G4Material* aMaterial,
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G4VEmAdjointModel* aModel,
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G4double PrimEnergy,
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G4double Tcut,
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G4bool IsScatProjToProjCase);
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//Total Adjoint CS is computed at initialisation phase
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//-----------------------------------------------------
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G4double ComputeTotalAdjointCS(const G4MaterialCutsCouple* aMatCutCouple,G4ParticleDefinition* aPart,G4double PrimEnergy);
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G4ParticleDefinition* GetAdjointParticleEquivalent(G4ParticleDefinition* theFwdPartDef);
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G4ParticleDefinition* GetForwardParticleEquivalent(G4ParticleDefinition* theAdjPartDef);
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//inline
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inline void SetTmin(G4double aVal){Tmin=aVal;}
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inline void SetTmax(G4double aVal){Tmax=aVal;}
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inline void SetNbins(G4int aInt){nbins=aInt;}
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inline void SetIon(G4ParticleDefinition* adjIon,
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G4ParticleDefinition* fwdIon) {theAdjIon=adjIon; theFwdIon =fwdIon;}
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private:
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static G4ThreadLocal G4AdjointCSManager* theInstance;
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std::vector< std::vector<G4AdjointCSMatrix*> > theAdjointCSMatricesForScatProjToProj; //x dim is for G4VAdjointEM*, y dim is for elements
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std::vector< std::vector<G4AdjointCSMatrix*> > theAdjointCSMatricesForProdToProj;
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std::vector< G4VEmAdjointModel*> listOfAdjointEMModel;
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std::vector<G4AdjointCSMatrix*>
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BuildCrossSectionsMatricesForAGivenModelAndElement(G4VEmAdjointModel* aModel,
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G4int Z,
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G4int A,
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G4int nbin_pro_decade);
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std::vector<G4AdjointCSMatrix*>
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BuildCrossSectionsMatricesForAGivenModelAndMaterial(G4VEmAdjointModel* aModel,
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G4Material* aMaterial,
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G4int nbin_pro_decade);
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G4Material* lastMaterial;
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G4double lastPrimaryEnergy;
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G4double lastTcut;
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std::vector< size_t> listOfIndexOfAdjointEMModelInAction;
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std::vector< G4bool> listOfIsScatProjToProjCase;
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std::vector< std::vector<G4double> > lastAdjointCSVsModelsAndElements;
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G4bool CrossSectionMatrixesAreBuilt;
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size_t currentParticleIndex;
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G4ParticleDefinition* currentParticleDef;
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//total adjoint and total forward cross section table in function of material and in function of adjoint particle type
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//--------------------------------------------------------------------------------------------------------------------
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std::vector<G4PhysicsTable*> theTotalForwardSigmaTableVector;
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std::vector<G4PhysicsTable*> theTotalAdjointSigmaTableVector;
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std::vector< std::vector<G4double> > EminForFwdSigmaTables;
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std::vector< std::vector<G4double> > EminForAdjSigmaTables;
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std::vector< std::vector<G4double> > EkinofFwdSigmaMax;
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std::vector< std::vector<G4double> > EkinofAdjSigmaMax;
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G4bool TotalSigmaTableAreBuilt;
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//Sigma tavle for each G4VAdjointEMModel
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std::vector<G4PhysicsTable*> listSigmaTableForAdjointModelScatProjToProj;
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std::vector<G4PhysicsTable*> listSigmaTableForAdjointModelProdToProj;
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//list of forward G4VEMLossProcess and of G4VEMProcess for the different adjoint particle
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//--------------------------------------------------------------
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std::vector< std::vector<G4VEmProcess*>* > listOfForwardEmProcess;
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std::vector< std::vector<G4VEnergyLossProcess*>* > listOfForwardEnergyLossProcess;
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//list of adjoint particles considered
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//--------------------------------------------------------------
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std::vector< G4ParticleDefinition*> theListOfAdjointParticlesInAction;
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G4double Tmin,Tmax;
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G4int nbins;
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//Current material
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//----------------
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G4MaterialCutsCouple* currentCouple;
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G4Material* currentMaterial;
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size_t currentMatIndex;
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G4int verbose;
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//Two CS mode are possible :forward_CS_mode = false the Adjoint CS are used as it is implying a AlongStep Weight Correction.
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// :forward_CS_mode = true the Adjoint CS are scaled to have the total adjoint CS eual to the fwd one implying a PostStep Weight Correction.
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// For energy range where the total FwdCS or the total adjoint CS are null, the scaling is not possble and
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// forward_CS_is_used is set to false
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//--------------------------------------------
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G4bool forward_CS_is_used;
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G4bool forward_CS_mode;
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//Adj and Fwd CS values for re-use
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//------------------------
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G4double PreadjCS,PostadjCS;
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G4double PrefwdCS,PostfwdCS;
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G4double LastEkinForCS;
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G4double LastCSCorrectionFactor;
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G4ParticleDefinition* lastPartDefForCS;
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//Ion
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//----------------
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G4ParticleDefinition* theAdjIon; //at the moment Only one ion can be considered by simulation
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G4ParticleDefinition* theFwdIon;
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G4double massRatio;
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private:
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G4AdjointCSManager();
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void DefineCurrentMaterial(const G4MaterialCutsCouple* couple);
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void DefineCurrentParticle(const G4ParticleDefinition* aPartDef);
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G4double ComputeAdjointCS(G4double aPrimEnergy, G4AdjointCSMatrix* anAdjointCSMatrix, G4double Tcut);
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size_t eindex;
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};
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#endif
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