Gabriele Cosmo
143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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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 statement,
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// and all its terms.
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//
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// $Id: G4LowEnergyIonisation.hh,v 1.9 1999/07/06 13:21:02 aforti Exp $
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// GEANT4 tag $Name: geant4-00-01 $
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//
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//
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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// For information related to this code contact:
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// CERN, IT Division, ASD group
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// History: based on object model of
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// 2nd December 1995, G.Cosmo
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// ---------- G4LowEnergyIonisation physics process -----------
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// by Laszlo Urban, 20 March 1997
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// ************************************************************
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// It is the first implementation of the NEW IONISATION
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// PROCESS. ( delta rays + continuous energy loss)
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// It calculates the ionisation for e+/e-.
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// ************************************************************
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//
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// 04-09-98: new methods SetBining() PrintInfo(), MMa
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// ------------------------------------------------------------
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#ifndef G4LowEnergyIonisation_h
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#define G4LowEnergyIonisation_h 1
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// Base Class Headers
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#include "G4VDiscreteProcess.hh"
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#include "G4eEnergyLoss.hh"
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// Contained Variables Headers
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#include "G4LowEnergyUtilities.hh"
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#include "G4Electron.hh"
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#include "G4Positron.hh"
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#include <fstream.h>
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typedef G4FirstLevel oneShellTable;
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typedef G4SecondLevel oneAtomTable;
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typedef G4ThirdLevel allAtomTable;
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class G4LowEnergyIonisation : public G4eEnergyLoss{
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public:
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G4LowEnergyIonisation(const G4String& processName = "LowEnergyIoni");
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~G4LowEnergyIonisation();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void SetCutForLowEnSecPhotons(G4double);
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void SetCutForLowEnSecElectrons(G4double);
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void BuildPhysicsTable(const G4ParticleDefinition& aParticleType);
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G4double GetMeanFreePath(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition ) ;
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inline G4double GetTransitionShell(G4int k){return(thePrimShVec(k));};
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G4VParticleChange *PostStepDoIt(const G4Track& track,
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const G4Step& Step ) ;
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void Print();
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protected:
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virtual G4double ComputeCrossSection(const G4double AtomicNumber,
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const G4double IncEnergy);
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void BuildLossTable(const G4ParticleDefinition& aParticleType);
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void BuildShellCrossSectionTable();
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void BuildBindingEnergyTable();
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void BuildFluorTransitionTable();
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void BuildSamplingCoeffTable();
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void BuildZVec();
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private:
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// hide assignment operator
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G4LowEnergyIonisation & operator=(const G4LowEnergyIonisation &right);
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G4LowEnergyIonisation(const G4LowEnergyIonisation&);
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private:
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G4int SelectRandomShell(const G4int AtomIndex, const G4double IncEnergy);
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G4Element* SelectRandomAtom(const G4DynamicParticle* aDynamicPhoton,
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G4Material* aMaterial);
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G4bool SelectRandomTransition(G4int, G4double*,
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const oneAtomTable*);
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G4double EnergySampling(const G4int, const G4int,const G4double);
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allAtomTable* allAtomShellCrossSec;
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allAtomTable* theFluorTransitionTable;
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allAtomTable* theSamplingCoeffTable;
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G4SecondLevel* theBindingEnergyTable;
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G4DataVector thePrimShVec;
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G4Data* ZNumVec;
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G4Data* ZNumVecFluor;
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G4LowEnergyUtilities util;
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G4double LowestKineticEnergy;
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G4double HighestKineticEnergy;
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G4int TotBin;
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G4double CutForLowEnergySecondaryPhotons;
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G4double CutForLowEnergySecondaryElectrons;
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G4double MeanFreePath;
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};
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#include "G4LowEnergyIonisation.icc"
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#endif
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