351 lines
13 KiB
C++
351 lines
13 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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// Module: G4VEMAdjointModel
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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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// 10 September 2009 Move to a virtual class. L. Desorgher
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// 1st April 2007 creation by L. Desorgher
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//
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//-------------------------------------------------------------
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// Documentation:
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// Base class for Adjoint EM model. It is based on the use of direct G4VEmModel.
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//
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#ifndef G4VEmAdjointModel_h
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#define G4VEmAdjointModel_h 1
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#include "globals.hh"
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#include "G4DynamicParticle.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4MaterialCutsCouple.hh"
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#include "G4Material.hh"
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#include "G4Element.hh"
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#include "G4ElementVector.hh"
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#include "Randomize.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4VEmModel.hh"
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#include "G4Electron.hh"
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#include "G4Gamma.hh"
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#include "G4ProductionCutsTable.hh"
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class G4PhysicsTable;
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class G4Region;
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class G4VParticleChange;
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class G4ParticleChange;
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class G4Track;
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class G4AdjointCSMatrix;
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class G4VEmAdjointModel
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{
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public: // public methods
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G4VEmAdjointModel(const G4String& nam);
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virtual ~G4VEmAdjointModel();
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//------------------------------------------------------------------------
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// Virtual methods to be implemented for the sample secondaries concrete model
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//------------------------------------------------------------------------
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//virtual void Initialise()=0;
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virtual void SampleSecondaries(const G4Track& aTrack,
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G4bool IsScatProjToProjCase,
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G4ParticleChange* fParticleChange)=0;
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//------------------------------------------------------------------------
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// Methods for adjoint processes; may be overwritten if needed;
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//------------------------------------------------------------------------
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virtual G4double AdjointCrossSection(const G4MaterialCutsCouple* aCouple,
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G4double primEnergy,
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G4bool IsScatProjToProjCase);
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virtual G4double GetAdjointCrossSection(const G4MaterialCutsCouple* aCouple,
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G4double primEnergy,
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G4bool IsScatProjToProjCase);
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virtual G4double DiffCrossSectionPerAtomPrimToSecond(
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G4double kinEnergyProj, // kinetic energy of the primary particle before the interaction
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G4double kinEnergyProd, // kinetic energy of the secondary particle
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G4double Z,
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G4double A = 0.);
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virtual G4double DiffCrossSectionPerAtomPrimToScatPrim(
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G4double kinEnergyProj, // kinetic energy of the primary particle before the interaction
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G4double kinEnergyScatProj, // kinetic energy of the primary particle after the interaction
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G4double Z,
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G4double A = 0.);
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virtual G4double DiffCrossSectionPerVolumePrimToSecond(
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const G4Material* aMaterial,
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G4double kinEnergyProj, // kinetic energy of the primary particle before the interaction
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G4double kinEnergyProd // kinetic energy of the secondary particle
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);
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virtual G4double DiffCrossSectionPerVolumePrimToScatPrim(
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const G4Material* aMaterial,
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G4double kinEnergyProj, // kinetic energy of the primary particle before the interaction
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G4double kinEnergyScatProj // kinetic energy of the primary particle after the interaction
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);
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//Energy limits of adjoint secondary
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//------------------
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virtual G4double GetSecondAdjEnergyMaxForScatProjToProjCase(G4double PrimAdjEnergy);
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virtual G4double GetSecondAdjEnergyMinForScatProjToProjCase(G4double PrimAdjEnergy,G4double Tcut=0);
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virtual G4double GetSecondAdjEnergyMaxForProdToProjCase(G4double PrimAdjEnergy);
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virtual G4double GetSecondAdjEnergyMinForProdToProjCase(G4double PrimAdjEnergy);
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//Other Methods
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//---------------
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void DefineCurrentMaterial(const G4MaterialCutsCouple* couple);
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std::vector< std::vector< double>* > ComputeAdjointCrossSectionVectorPerAtomForSecond(
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G4double kinEnergyProd,
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G4double Z,
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G4double A = 0.,
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G4int nbin_pro_decade=10
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);
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std::vector< std::vector< double>* > ComputeAdjointCrossSectionVectorPerAtomForScatProj(
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G4double kinEnergyProd,
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G4double Z,
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G4double A = 0.,
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G4int nbin_pro_decade=10
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);
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std::vector< std::vector< double>* > ComputeAdjointCrossSectionVectorPerVolumeForSecond(
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G4Material* aMaterial,
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G4double kinEnergyProd,
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G4int nbin_pro_decade=10
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);
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std::vector< std::vector< double>* > ComputeAdjointCrossSectionVectorPerVolumeForScatProj(
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G4Material* aMaterial,
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G4double kinEnergyProd,
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G4int nbin_pro_decade=10
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);
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inline void SetCSMatrices(std::vector< G4AdjointCSMatrix* >* Vec1CSMatrix, std::vector< G4AdjointCSMatrix* >* Vec2CSMatrix){
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pOnCSMatrixForProdToProjBackwardScattering = Vec1CSMatrix;
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pOnCSMatrixForScatProjToProjBackwardScattering = Vec2CSMatrix;
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};
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inline G4ParticleDefinition* GetAdjointEquivalentOfDirectPrimaryParticleDefinition(){return theAdjEquivOfDirectPrimPartDef;}
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inline G4ParticleDefinition* GetAdjointEquivalentOfDirectSecondaryParticleDefinition(){return theAdjEquivOfDirectSecondPartDef;}
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inline G4double GetHighEnergyLimit(){return HighEnergyLimit;}
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inline G4double GetLowEnergyLimit(){return LowEnergyLimit;}
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void SetHighEnergyLimit(G4double aVal);
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void SetLowEnergyLimit(G4double aVal);
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inline void DefineDirectEMModel(G4VEmModel* aModel){theDirectEMModel = aModel;}
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void SetAdjointEquivalentOfDirectPrimaryParticleDefinition(G4ParticleDefinition* aPart);
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inline void SetAdjointEquivalentOfDirectSecondaryParticleDefinition(G4ParticleDefinition* aPart){
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theAdjEquivOfDirectSecondPartDef =aPart;
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}
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inline void SetSecondPartOfSameType(G4bool aBool){second_part_of_same_type =aBool;}
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inline G4bool GetSecondPartOfSameType(){return second_part_of_same_type;}
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inline void SetUseMatrix(G4bool aBool) { UseMatrix = aBool;}
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inline void SetUseMatrixPerElement(G4bool aBool){ UseMatrixPerElement = aBool;}
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inline void SetUseOnlyOneMatrixForAllElements(G4bool aBool){ UseOnlyOneMatrixForAllElements = aBool;}
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inline void SetApplyCutInRange(G4bool aBool){ ApplyCutInRange = aBool;}
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inline G4bool GetUseMatrix() {return UseMatrix;}
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inline G4bool GetUseMatrixPerElement(){ return UseMatrixPerElement;}
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inline G4bool GetUseOnlyOneMatrixForAllElements(){ return UseOnlyOneMatrixForAllElements;}
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inline G4bool GetApplyCutInRange(){ return ApplyCutInRange;}
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inline G4String GetName(){ return name;}
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inline virtual void SetCSBiasingFactor(G4double aVal) {CS_biasing_factor = aVal;}
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inline void SetCorrectWeightForPostStepInModel(G4bool aBool) {correct_weight_for_post_step_in_model = aBool;}
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inline void SetAdditionalWeightCorrectionFactorForPostStepOutsideModel(G4double factor) {additional_weight_correction_factor_for_post_step_outside_model = factor;}
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protected:
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//Some of them can be overriden by daughter classes
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G4double DiffCrossSectionFunction1(G4double kinEnergyProj);
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G4double DiffCrossSectionFunction2(G4double kinEnergyProj);
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G4double DiffCrossSectionPerVolumeFunctionForIntegrationOverEkinProj(G4double EkinProd);
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//General methods to sample secondary energy
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//--------------------------------------
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G4double SampleAdjSecEnergyFromCSMatrix(size_t MatrixIndex,G4double prim_energy,G4bool IsScatProjToProjCase);
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G4double SampleAdjSecEnergyFromCSMatrix(G4double prim_energy,G4bool IsScatProjToProjCase);
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void SelectCSMatrix(G4bool IsScatProjToProjCase);
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virtual G4double SampleAdjSecEnergyFromDiffCrossSectionPerAtom(G4double prim_energy,G4bool IsScatProjToProjCase);
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//Post Step weight correction
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//----------------------------
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virtual void CorrectPostStepWeight(G4ParticleChange* fParticleChange,
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G4double old_weight,
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G4double adjointPrimKinEnergy,
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G4double projectileKinEnergy,
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G4bool IsScatProjToProjCase);
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protected: //attributes
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G4VEmModel* theDirectEMModel;
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G4VParticleChange* pParticleChange;
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//Name
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//-----
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const G4String name;
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//Needed for CS integration at the initialisation phase
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//-----------------------------------------------------
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G4int ASelectedNucleus;
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G4int ZSelectedNucleus;
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G4Material* SelectedMaterial;
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G4double kinEnergyProdForIntegration;
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G4double kinEnergyScatProjForIntegration;
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G4double kinEnergyProjForIntegration;
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//for the adjoint simulation we need for each element or material:
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//an adjoint CS Matrix
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//-----------------------------
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std::vector< G4AdjointCSMatrix* >* pOnCSMatrixForProdToProjBackwardScattering;
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std::vector< G4AdjointCSMatrix* >* pOnCSMatrixForScatProjToProjBackwardScattering;
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std::vector<G4double> CS_Vs_ElementForScatProjToProjCase;
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std::vector<G4double> CS_Vs_ElementForProdToProjCase;
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G4double lastCS;
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G4double lastAdjointCSForScatProjToProjCase;
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G4double lastAdjointCSForProdToProjCase;
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//particle definition
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//------------------
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G4ParticleDefinition* theAdjEquivOfDirectPrimPartDef;
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G4ParticleDefinition* theAdjEquivOfDirectSecondPartDef;
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G4ParticleDefinition* theDirectPrimaryPartDef;
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G4bool second_part_of_same_type;
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//Prestep energy
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//-------------
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G4double preStepEnergy;
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//Current couple material
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//----------------------
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G4Material* currentMaterial;
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G4MaterialCutsCouple* currentCouple;
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size_t currentMaterialIndex;
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size_t currentCoupleIndex;
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G4double currentTcutForDirectPrim;
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G4double currentTcutForDirectSecond;
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G4bool ApplyCutInRange;
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//For ions
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//---------
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G4double mass_ratio_product;
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G4double mass_ratio_projectile;
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//Energy limits
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//-------------
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G4double HighEnergyLimit;
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G4double LowEnergyLimit;
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//Cross Section biasing factor
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//---------------------------
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G4double CS_biasing_factor;
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//Type of Model with Matrix or not
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//--------------------------------
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G4bool UseMatrix;
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G4bool UseMatrixPerElement; //other possibility is per Material
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G4bool UseOnlyOneMatrixForAllElements;
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//Index of Cross section matrices to be used
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//------------
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size_t indexOfUsedCrossSectionMatrix;
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size_t model_index;
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//This is needed for the forced interaction where part of the weight correction
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// is given outside the model while the secondary are created in the model
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//The weight should be fixed before adding the secondary
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G4bool correct_weight_for_post_step_in_model;
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G4double additional_weight_correction_factor_for_post_step_outside_model;
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};
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#endif
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