Gabriele Cosmo
239 lines
7.3 KiB
C++
239 lines
7.3 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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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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//
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// File name: G4PAIModel
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//
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// Author: V. Grichine based on Vladimir Ivanchenko code
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//
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// Creation date: 05.10.2003
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//
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// Modifications:
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//
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//
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// Class Description:
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//
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// Implementation of PAI model of energy loss and
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// delta-electron production by heavy charged particles
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// -------------------------------------------------------------------
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//
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#ifndef G4PAIModel_h
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#define G4PAIModel_h 1
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#include <vector>
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#include "G4VEmModel.hh"
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#include "globals.hh"
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#include "G4VEmFluctuationModel.hh"
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class G4PhysicsLogVector;
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class G4PhysicsTable;
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class G4Region;
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class G4MaterialCutsCouple;
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class G4PAIModel : public G4VEmModel, public G4VEmFluctuationModel
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{
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public:
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G4PAIModel(const G4ParticleDefinition* p = 0, const G4String& nam = "PAI");
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~G4PAIModel();
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void Initialise(const G4ParticleDefinition*, const G4DataVector&);
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void InitialiseMe(const G4ParticleDefinition*) {};
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G4double HighEnergyLimit(const G4ParticleDefinition* p);
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G4double LowEnergyLimit(const G4ParticleDefinition* p);
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void SetHighEnergyLimit(G4double e) {fHighKinEnergy = e;};
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void SetLowEnergyLimit(G4double e) {fLowKinEnergy = e;};
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G4double MinEnergyCut(const G4ParticleDefinition*,
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const G4MaterialCutsCouple*);
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G4bool IsInCharge(const G4ParticleDefinition*);
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G4double ComputeDEDX(const G4MaterialCutsCouple*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy);
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G4double CrossSection(const G4MaterialCutsCouple*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy,
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G4double maxEnergy);
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G4DynamicParticle* SampleSecondary(
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy);
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std::vector<G4DynamicParticle*>* SampleSecondaries(
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy);
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G4double MaxSecondaryEnergy(const G4DynamicParticle*);
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G4double SampleFluctuations(const G4Material*,
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const G4DynamicParticle*,
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G4double&,
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G4double&,
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G4double&);
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G4double Dispersion( const G4Material*,
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const G4DynamicParticle*,
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G4double&,
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G4double&);
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void DefineForRegion(const G4Region* r) ;
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void ComputeSandiaPhotoAbsCof();
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void BuildPAIonisationTable();
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void BuildLambdaVector(const G4MaterialCutsCouple* matCutsCouple);
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G4double GetdNdxCut( G4int iPlace, G4double transferCut);
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G4double GetdEdxCut( G4int iPlace, G4double transferCut);
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G4double GetPostStepTransfer( G4double scaledTkin );
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G4double GetEnergyTransfer( G4int iPlace,
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G4double position,
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G4int iTransfer );
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protected:
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G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
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G4double kinEnergy);
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private:
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void SetParticle(const G4ParticleDefinition* p);
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// hide assignment operator
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G4PAIModel & operator=(const G4PAIModel &right);
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G4PAIModel(const G4PAIModel&);
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// The vector over proton kinetic energies: the range of gammas
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G4double fLowestKineticEnergy;
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G4double fHighestKineticEnergy;
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G4int fTotBin;
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G4int fMeanNumber;
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G4PhysicsLogVector* fProtonEnergyVector ;
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// vectors
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G4PhysicsTable* fPAItransferBank;
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std::vector<G4PhysicsTable*> fPAIxscBank;
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G4PhysicsTable* fPAIdEdxTable;
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std::vector<G4PhysicsTable*> fPAIdEdxBank;
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std::vector<const G4MaterialCutsCouple*> fMaterialCutsCoupleVector;
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std::vector<const G4Region*> fPAIRegionVector;
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size_t fMatIndex ;
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G4double** fSandiaPhotoAbsCof ;
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G4int fSandiaIntervalNumber ;
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G4PhysicsLogVector* fdEdxVector ;
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std::vector<G4PhysicsLogVector*> fdEdxTable ;
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G4PhysicsLogVector* fLambdaVector ;
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std::vector<G4PhysicsLogVector*> fLambdaTable ;
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G4PhysicsLogVector* fdNdxCutVector ;
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std::vector<G4PhysicsLogVector*> fdNdxCutTable ;
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const G4ParticleDefinition* fParticle;
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G4double fMass;
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G4double fSpin;
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G4double fChargeSquare;
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G4double fRatio;
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G4double fHighKinEnergy;
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G4double fLowKinEnergy;
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G4double fTwoln10;
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G4double fBg2lim;
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G4double fTaulim;
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G4double fQc;
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};
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/////////////////////////////////////////////////////////////////////
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inline G4double G4PAIModel::MaxSecondaryEnergy( const G4ParticleDefinition*,
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G4double kinEnergy)
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{
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G4double gamma= kinEnergy/fMass + 1.0;
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G4double tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
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(1. + 2.0*gamma*fRatio + fRatio*fRatio);
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return tmax;
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}
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/////////////////////////////////////////////////////////////////////////
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inline G4double G4PAIModel::MaxSecondaryEnergy(const G4DynamicParticle* dp)
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{
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G4double kineticEnergy = dp->GetKineticEnergy();
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G4double gamma= kineticEnergy/fMass + 1.0;
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G4double tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
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(1. + 2.0*gamma*fRatio + fRatio*fRatio);
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return tmax;
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}
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///////////////////////////////////////////////////////////////
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inline void G4PAIModel::DefineForRegion(const G4Region* r)
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{
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// G4Region* rPAI = r;
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// fPAIRegionVector.push_back(rPAI);
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fPAIRegionVector.push_back(r);
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}
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#endif
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