Gabriele Cosmo
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
// This code implementation is the intellectual property of
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// the 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: G4LowEnergyBremsstrahlung.hh,v 1.12 2000/11/03 10:29:50 pia Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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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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// CERN Geneva Switzerland
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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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// ------------ G4LowEnergyBremsstrahlung physics process ------
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// by A.Forti 1999/03/27 19:18:13
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//
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// 18.04.2000 V.Lefebure
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// - First implementation of continuous energy loss.
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//
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//
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// Class description:
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// Low Energy electromagnetic process, Bremsstrahlung
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// Further documentation available from http://www.ge.infn.it/geant4/lowE
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// ************************************************************
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#ifndef G4LowEnergyBremsstrahlung_h
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#define G4LowEnergyBremsstrahlung_h 1
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#include "G4eLowEnergyLoss.hh"
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#include "G4LowEnergyUtilities.hh"
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class G4LowEnergyBremsstrahlung : public G4eLowEnergyLoss{
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public:
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G4LowEnergyBremsstrahlung(const G4String& processName = "LowEnBrem");
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~G4LowEnergyBremsstrahlung();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void SetCutForLowEnSecPhotons(G4double);
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void PrintInfoDefinition();
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void BuildPhysicsTable(const G4ParticleDefinition& ParticleType);
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void BuildLossTable(const G4ParticleDefinition& ParticleType);
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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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G4VParticleChange* PostStepDoIt(const G4Track& track,
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const G4Step& step);
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G4double GetEnergyLossWithCut(const G4double AtomicNumber,
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const G4double KineticEnergy,
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const G4double Tcut) ;
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private:
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void BuildCrossSectionTable();
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void BuildMeanFreePathTable();
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void BuildATable();
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void BuildBTable();
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void BuildZVec();
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void BuildLambdaTable(const G4ParticleDefinition& aParticleType);
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void ComputePartialSumSigma(const G4double KineticEnergy,
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const G4Material* aMaterial,
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const G4double threshold);
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private:
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G4double ComputeA(const G4int Z,const G4double ElectKinEnergy); // interpolation
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G4double ComputeB(const G4int Z,const G4double ElectKinEnergy); // parametrized formula
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G4double GetCrossSection(const G4double AtomicNumber,
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const G4double KineticEnergy) ;
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G4double GetCrossSectionWithCut(const G4double AtomIndex,
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const G4double IncEnergy,
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const G4double CutEnergy);
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G4Element* SelectRandomAtom(G4Material* aMaterial) const;
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G4LowEnergyBremsstrahlung & operator=(const G4LowEnergyBremsstrahlung &right);
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G4LowEnergyBremsstrahlung(const G4LowEnergyBremsstrahlung&);
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private:
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G4SecondLevel* theCrossSectionTable ;
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G4PhysicsTable* theMeanFreePathTable ;
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G4SecondLevel* ATable;
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G4FirstLevel* BTable;
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G4Data* ZNumVec;
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G4LowEnergyUtilities util;
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// partial sum of total crosssection
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G4OrderedTable PartialSumSigma;
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G4double LowestKineticEnergy;
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G4double HighestKineticEnergy;
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G4double lowEnergyCut; // lower limit of the energy sampling formula
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G4int TotBin; // number of bins in the tables
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G4double CutForLowEnergySecondaryPhotons;
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};
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#include "G4LowEnergyBremsstrahlung.icc"
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#endif
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