Gabriele Cosmo
187 lines
6.0 KiB
C++
187 lines
6.0 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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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 *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4LowEnergyIonisation.hh,v 1.20.2.2 2001/06/28 20:19:23 gunter Exp $
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// GEANT4 tag $Name: $
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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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// --- G4LowEnergyIonisation physics process for electrons
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// by Alessandra Forti July 1999
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// ************************************************************
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//
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// 07.04.2000 Veronique Lefebure + Laszlo Urban
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// - First implemention of continuous energy loss
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// 14/07/99: corrections , L.Urban
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// 20/09/00 update fluctuations V.Ivanchenko
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//
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// Class description:
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// Low Energy Electromagnetic process, electron Ionisation
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// Further documentation available from http://www.ge.infn.it/geant4/lowE
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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 "G4eLowEnergyLoss.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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typedef G4FirstLevel oneShellTable;
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typedef G4SecondLevel oneAtomTable;
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typedef G4ThirdLevel allAtomTable;
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class G4LowEnergyIonisation : public G4eLowEnergyLoss{
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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 PrintInfoDefinition();
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G4double GetShellCrossSection(const G4double AtomicNumber,
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const G4int subshellindex,
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const G4double KineticEnergy) ;
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G4double GetShellCrossSectionwithCut(const G4double AtomicNumber,
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const G4int subshellindex,
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const G4double KineticEnergy,
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const G4double Tcut) ;
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G4double GetShellEnergyLosswithCut(const G4double AtomicNumber,
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const G4int subshellindex,
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const G4double KineticEnergy,
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const G4double Tcut) ;
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void SetLowEnergyLimit(G4double val) {if(val > 0.0) lEnergyLimit = val;};
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private:
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virtual G4double ComputeCrossSection(const G4double AtomicNumber,
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const G4double IncEnergy);
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G4double ComputeCrossSectionWithCut(const G4double AtomIndex,
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const G4double IncEnergy,
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const G4double CutEnergy);
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G4double ComputeMicroscopicCrossSection(const G4double AtomIndex,
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const G4double IncEnergy,
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const G4double CutEnergy);
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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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void BuildLambdaTable(const G4ParticleDefinition& aParticleType);
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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
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, const G4double IncEnergy
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, const G4double CutEnergy);
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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 AtomicNumber
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, const G4int ShellIndex
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, const G4double KinEn
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, const G4double deltaRayMinE = 0.1*eV);
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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* ZNumVec;
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G4DataVector* ZNumVecFluor;
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G4PhysicsTable* theMeanFreePathTable;
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G4double CutForLowEnergySecondaryPhotons;
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G4double CutForLowEnergySecondaryElectrons;
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G4double MeanFreePath;
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G4double lowestKineticEnergy;
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G4double highestKineticEnergy;
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G4int TotBin;
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G4LowEnergyUtilities util;
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G4DataVector thePrimShVec;
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G4double lEnergyLimit;
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};
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#include "G4LowEnergyIonisation.icc"
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#endif
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