Gabriele Cosmo
125 lines
4.5 KiB
C++
125 lines
4.5 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: G4PenelopeCompton.hh,v 1.10 2006/06/29 19:36:21 gunter Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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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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// 05 Dec 2002 L. Pandola 1st implementation
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// 12 Feb 2003 MG Pia const argument in SelectRandomAtomForCompton
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// 14 Feb 2003 MG Pia Modified some variables to lowercase initial
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// 26 Mar 2003 L.Pandola Added fluorescence
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// 18 Mar 2004 L.Pandola Use of std::map (code review)
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//
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// -------------------------------------------------------------------
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// Class description:
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// Low Energy Electromagnetic Physics, Compton Scattering
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// Penelope Model
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// -------------------------------------------------------------------
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#ifndef G4PENELOPECOMPTON_HH
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#define G4PENELOPECOMPTON_HH 1
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#include "globals.hh"
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#include "G4VDiscreteProcess.hh"
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class G4Track;
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class G4Step;
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class G4ParticleDefinition;
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class G4VParticleChange;
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class G4VEMDataSet;
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class G4VRangeTest;
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class G4Material;
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class G4PenelopeCompton : public G4VDiscreteProcess {
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public:
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G4PenelopeCompton(const G4String& processName ="PenCompton");
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~G4PenelopeCompton();
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G4bool IsApplicable(const G4ParticleDefinition& definition);
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void BuildPhysicsTable(const G4ParticleDefinition& photon);
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G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep);
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// For testing purpose only
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G4double DumpMeanFreePath(const G4Track& aTrack,
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G4double previousStepSize,
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G4ForceCondition* condition)
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{ return GetMeanFreePath(aTrack, previousStepSize, condition); }
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protected:
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G4double GetMeanFreePath(const G4Track& aTrack,
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G4double previousStepSize,
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G4ForceCondition* condition);
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private:
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// Hide copy constructor and assignment operator as private
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G4PenelopeCompton& operator=(const G4PenelopeCompton& right);
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G4PenelopeCompton(const G4PenelopeCompton& );
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void ReadData();
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G4double CrossSection(G4double energy,G4int Z);
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G4double DifferentialCrossSection (G4double cdt);
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G4double lowEnergyLimit; // low energy limit applied to the process
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G4double highEnergyLimit; // high energy limit applied to the process
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G4VEMDataSet* meanFreePathTable;
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G4VRangeTest* rangeTest;
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const G4double intrinsicLowEnergyLimit; // intrinsic validity range
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const G4double intrinsicHighEnergyLimit;
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G4double energyForIntegration; //for numerical integration of
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G4int ZForIntegration;// analytical cross section
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//Parameters of atomic shells
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std::map<G4int,G4DataVector*> *ionizationEnergy;
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std::map<G4int,G4DataVector*> *hartreeFunction;
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std::map<G4int,G4DataVector*> *occupationNumber;
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G4int SelectRandomAtomForCompton(const G4Material* material,G4double e) const;
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const G4int nBins; //for building cross section table
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std::vector<G4VEMDataSet*> *matCrossSections; //for random choice of atom
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G4double cutForLowEnergySecondaryPhotons;
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};
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#endif
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