Gabriele Cosmo
108 lines
3.7 KiB
C++
108 lines
3.7 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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// 01 Jul 2003 L. Pandola 1st implementation
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//
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// -------------------------------------------------------------------
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// Class description:
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// Low Energy Electromagnetic Physics, Positron Annihilation
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// Penelope Model
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// -------------------------------------------------------------------
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#ifndef G4PenelopeAnnihilation_h
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#define G4PenelopeAnnihilation_h 1
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#include "globals.hh"
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#include "G4VRestDiscreteProcess.hh"
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class G4PhysicsTableclass;
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class G4ParticleDefinition;
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class G4VParticleChange;
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class G4Track;
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class G4Step;
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class G4Material;
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class G4PenelopeAnnihilation : public G4VRestDiscreteProcess
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{
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public:
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G4PenelopeAnnihilation(const G4String& processName ="PenAnnih");
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~G4PenelopeAnnihilation();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void BuildPhysicsTable(const G4ParticleDefinition&);
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void PrintInfoDefinition();
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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&,G4double,
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G4ForceCondition*);
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public:
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G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
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const G4Step& aStep);
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G4double GetMeanLifeTime(const G4Track& aTrack,
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G4ForceCondition* condition);
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G4VParticleChange* AtRestDoIt(const G4Track& aTrack,
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const G4Step& aStep);
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private:
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G4double calculateCrossSectionPerElectron(G4double energy);
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private:
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// hide assignment operator as private
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G4PenelopeAnnihilation& operator=(const G4PenelopeAnnihilation& right);
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G4PenelopeAnnihilation(const G4PenelopeAnnihilation& );
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private:
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G4PhysicsTable* meanFreePathTable;
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G4double lowEnergyLimit; // low energy limit of the tables
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G4double highEnergyLimit; // high energy limit of the tables
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G4int nBins; // number of bins in the tables
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G4double cutForLowEnergySecondaryPhotons;
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};
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#endif
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