Gabriele Cosmo
132 lines
4.9 KiB
C++
132 lines
4.9 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: Luciano Pandola
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//
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// History:
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// -----------
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// 03 Dec 2009 L. Pandola 1st implementation.
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// 25 May 2011 L. Pandola Renamed (make v2008 as default Penelope)
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// 27 Sep 2013 L. Pandola Migration to MT paradigm
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// 04 Mar 2021 L. Pandola Replace maps with arrays
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//
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// -------------------------------------------------------------------
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//
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// Class description:
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// Low Energy Electromagnetic Physics, Rayleigh Scattering
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// with the model from Penelope, version 2008
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// -------------------------------------------------------------------
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#ifndef G4PENELOPERAYLEIGHMODEL_HH
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#define G4PENELOPERAYLEIGHMODEL_HH 1
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#include "globals.hh"
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#include "G4VEmModel.hh"
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#include "G4DataVector.hh"
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#include "G4ParticleChangeForGamma.hh"
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class G4ParticleDefinition;
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class G4DynamicParticle;
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class G4MaterialCutsCouple;
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class G4Material;
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class G4PhysicsFreeVector;
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class G4PenelopeSamplingData;
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class G4PenelopeRayleighModel : public G4VEmModel
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{
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public:
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explicit G4PenelopeRayleighModel(const G4ParticleDefinition* p=nullptr,
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const G4String& processName ="PenRayleigh");
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virtual ~G4PenelopeRayleighModel();
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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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G4double ComputeCrossSectionPerAtom(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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void SetVerbosityLevel(G4int lev){fVerboseLevel = lev;};
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G4int GetVerbosityLevel(){return fVerboseLevel;};
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//Testing purposes
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void DumpFormFactorTable(const G4Material*);
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G4PenelopeRayleighModel& operator=(const G4PenelopeRayleighModel &right) = delete;
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G4PenelopeRayleighModel(const G4PenelopeRayleighModel&) = delete;
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protected:
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G4ParticleChangeForGamma* fParticleChange;
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const G4ParticleDefinition* fParticle;
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private:
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void SetParticle(const G4ParticleDefinition*);
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//Helper methods
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void ReadDataFile(G4int);
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void ClearTables();
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void BuildFormFactorTable(const G4Material*);
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void GetPMaxTable(const G4Material*);
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G4double GetFSquared(const G4Material*,const G4double);
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void InitializeSamplingAlgorithm(const G4Material*);
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G4DataVector fLogQSquareGrid; //log(Q^2) grid for interpolation
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std::map<const G4Material*,G4PhysicsFreeVector*> *fLogFormFactorTable; //log(Q^2) vs. log(F^2)
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G4DataVector fLogEnergyGridPMax; //energy grid for PMac (and originally for the x-section)
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std::map<const G4Material*,G4PhysicsFreeVector*> *fPMaxTable; //E vs. Pmax
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std::map<const G4Material*,G4PenelopeSamplingData*> *fSamplingTable;
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//Internal tables and manager methods
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static const G4int fMaxZ =99;
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static G4PhysicsFreeVector* fLogAtomicCrossSection[fMaxZ+1];
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static G4PhysicsFreeVector* fAtomicFormFactor[fMaxZ+1];
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//Intrinsic energy limits of the model: cannot be extended by
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//the parent process
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G4double fIntrinsicLowEnergyLimit;
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G4double fIntrinsicHighEnergyLimit;
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G4int fVerboseLevel;
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G4bool fIsInitialised;
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//Used only for G4EmCalculator and Unit Tests
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G4bool fLocalTable;
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};
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#endif
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