Gabriele Cosmo
123 lines
4.4 KiB
C++
123 lines
4.4 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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// $Id: G4PenelopeRayleighModel.hh,v 1.1 2008/10/28 08:50:21 pandola Exp $
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// GEANT4 tag $Name: geant4-09-02 $
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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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// 13 Oct 2008 L. Pandola 1st implementation. Migration from EM process
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// to EM model
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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 Penelope Model
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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 G4PenelopeRayleighModel : public G4VEmModel
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{
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public:
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G4PenelopeRayleighModel(const G4ParticleDefinition* p=0,
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const G4String& processName ="PenRayleigh");
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virtual ~G4PenelopeRayleighModel();
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virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
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virtual G4double CrossSectionPerVolume(const G4Material*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy = 0.0,
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G4double maxEnergy = DBL_MAX);
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virtual 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);
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void SetVerbosityLevel(G4int lev){verboseLevel = lev;};
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G4int GetVerbosityLevel(){return verboseLevel;};
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protected:
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G4ParticleChangeForGamma* fParticleChange;
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private:
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G4PenelopeRayleighModel & operator=(const G4PenelopeRayleighModel &right);
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G4PenelopeRayleighModel(const G4PenelopeRayleighModel&);
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//Method to initialize sampling
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void InitialiseSampling();
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std::map <const G4Material*,G4DataVector*> SamplingTable;
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G4DataVector* samplingFunction_x;
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G4DataVector* samplingFunction_xNoLog;
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//Parameters for building the sampling tables
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G4int nPoints;
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G4double Xhigh;
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G4double Xlow;
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void PrepareConstants();
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//Parameters that must be in common between methods
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const G4Material* theMaterial;
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//Cross section calculation
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G4double MolecularFormFactor(G4double x);
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G4double DifferentialCrossSection(G4double cosTheta);
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// Energy dependent factor in the differential cross section
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G4double factorE;
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//Intrinsic energy limits of the model: cannot be extended by the parent process
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G4double fIntrinsicLowEnergyLimit;
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G4double fIntrinsicHighEnergyLimit;
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G4int verboseLevel;
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G4bool isInitialised;
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};
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#endif
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