Gabriele Cosmo
133 lines
4.6 KiB
C++
133 lines
4.6 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: G4eBremsstrahlungPlus.hh,v 1.1.10.1 1999/12/07 20:50:52 gunter Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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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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// History: first implementation, based on object model of
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// 2nd December 1995, G.Cosmo
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// ------------ G4eBremsstrahlungPlus physics process ------
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// by Michel Maire, 24 July 1996
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// ************************************************************
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// 1-10-96 : new type G4OrderedTable; ComputePartialSumSigma()
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// 20/03/97: new energy loss+ionisation+brems scheme, L.Urban
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// 01-09-98, new methods SetBining() and PrintInfo()
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// ------------------------------------------------------------
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#ifndef G4eBremsstrahlungPlus_h
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#define G4eBremsstrahlungPlus_h 1
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#include "G4ios.hh"
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#include "globals.hh"
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#include "Randomize.hh"
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#include "G4eEnergyLossPlus.hh"
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#include "G4Track.hh"
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#include "G4Step.hh"
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#include "G4Gamma.hh"
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#include "G4Electron.hh"
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#include "G4Positron.hh"
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#include "G4OrderedTable.hh"
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#include "G4PhysicsTable.hh"
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#include "G4PhysicsLogVector.hh"
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class G4eBremsstrahlungPlus : public G4eEnergyLossPlus
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{
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public:
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G4eBremsstrahlungPlus(const G4String& processName = "eBrem+");
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~G4eBremsstrahlungPlus();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void SetPhysicsTableBining(G4double lowE, G4double highE, G4int nBins);
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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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void BuildLambdaTable(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 GetLambda(
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G4double KineticEnergy,G4Material* material);
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protected:
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G4double ComputeMeanFreePath( const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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const G4Material* aMaterial);
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void ComputePartialSumSigma( const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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const G4Material* aMaterial);
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virtual G4double ComputeMicroscopicCrossSection(
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const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double GammaEnergyCut);
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private:
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G4double ComputeBremLoss(G4double Z,G4double natom,G4double T,
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G4double Cut,G4double x);
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G4double ComputeXYPolynomial(G4double x,G4double y,G4int xSize,
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G4int ySize,const G4double coeff[]);
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G4double ComputePositronCorrFactorLoss(G4double AtomicNumber,
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G4double KineticEnergy,
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G4double GammaEnergyCut);
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G4double ComputePositronCorrFactorSigma(G4double AtomicNumber,
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G4double KineticEnergy,
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G4double GammaEnergyCut);
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G4Element* SelectRandomAtom(G4Material* aMaterial) const;
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G4double ScreenFunction1(G4double ScreenVariable);
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G4double ScreenFunction2(G4double ScreenVariable);
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G4eBremsstrahlungPlus & operator=(const G4eBremsstrahlungPlus &right);
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G4eBremsstrahlungPlus(const G4eBremsstrahlungPlus&);
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private:
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G4PhysicsTable* theMeanFreePathTable ;
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G4OrderedTable PartialSumSigma; // partial sum of total crosssection
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G4double LowestKineticEnergy; // low energy limit of the crossection formula
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G4double HighestKineticEnergy; // high energy limit of the crossection formula
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G4int TotBin; // number of bins in the tables
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};
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#include "G4eBremsstrahlungPlus.icc"
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#endif
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