Gabriele Cosmo
160 lines
4.6 KiB
C++
160 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: G4MultipleScattering.hh,v 1.6.6.1 1999/12/07 20:50:50 gunter Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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//
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// $Id:
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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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// --------- G4MultipleScattering physics process --------
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// by Laszlo Urban, October 1997
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// **************************************************************
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// UNIVERSAL: for arbitrary single charged particle
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// 09/12/98: charge can be != +- 1 !!!! L.Urban
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// 30/09/99: nuclear size effect correction L.Urban
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// --------------------------------------------------------------
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// 22/10/98: cleanup , L.Urban
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#ifndef G4MultipleScattering_h
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#define G4MultipleScattering_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 "G4EnergyLossTables.hh"
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#include "G4Electron.hh"
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#include "G4Positron.hh"
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#include "G4MuonPlus.hh"
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#include "G4PionPlus.hh"
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#include "G4Proton.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4GPILSelection.hh"
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#include "G4VContinuousDiscreteProcess.hh"
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#include "G4Step.hh"
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#include "G4Track.hh"
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#include "G4Material.hh"
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#include "G4ParticleChangeForMSC.hh"
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#include "G4UnitsTable.hh"
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class G4MultipleScattering : public G4VContinuousDiscreteProcess
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{
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public:
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G4MultipleScattering(const G4String& processName="msc") ;
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~G4MultipleScattering() ;
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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 BuildPhysicsTable(const G4ParticleDefinition& aParticleType) ;
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void PrintInfoDefinition();
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G4double GetContinuousStepLimit(const G4Track& aTrack,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety) ;
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G4double GetMeanFreePath(const G4Track& aTrack,
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G4double previousStepSize,
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G4ForceCondition* condition) ;
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G4VParticleChange* AlongStepDoIt(const G4Track& aTrack,const G4Step& aStep);
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G4VParticleChange* PostStepDoIt(const G4Track& aTrack,const G4Step& aStep) ;
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G4double GetLambda(G4double KineticEnergy,G4Material* material);
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void SetScatteringParameter(G4double value)
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{ scatteringparameter = value ; } ;
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void SetTuning(G4double value) { tuning = value ; };
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void SetCpar (G4double value) { cpar = value ; };
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void SetTlimitmsc (G4double value) { Tlimit = value ; };
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void SetLateralDisplacementFlag(G4bool flag) {fLatDisplFlag = flag;};
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void SetNuclCorrPar(G4double val) { NuclCorrPar = val; } ;
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void SetFactPar(G4double val) { FactPar = val ; } ;
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protected:
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G4double ComputeTransportCrossSection(
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const G4ParticleDefinition& aParticleType,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double AtomicWeight) ;
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G4double TrueToGeomTransformation(const G4DynamicParticle* aParticle,
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G4Material* aMaterial,
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G4double truePathLength) ;
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private:
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// hide assignment operator as private
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G4MultipleScattering & operator = (const G4MultipleScattering &right) ;
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G4MultipleScattering ( const G4MultipleScattering &) ;
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// data members ...................................................
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private:
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G4PhysicsTable* theTransportMeanFreePathTable ;
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G4double fTransportMeanFreePath ;
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G4double range,alpha1 ;
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G4int stepFlag ;
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G4double biglambda ;
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G4double LowestKineticEnergy ;
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G4double HighestKineticEnergy ;
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G4int TotBin ;
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const G4Electron* theElectron ;
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const G4Positron* thePositron ;
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G4Material* lastMaterial;
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G4double lastKineticEnergy;
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G4int materialIndex ;
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G4double tLast ;
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G4double zLast ;
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G4double Tlimit ;
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// model parameters
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G4double scatteringparameter;
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G4double tuning;
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G4double cpar;
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// with/without lateral displacement
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G4bool fLatDisplFlag ;
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// nuclear size effect correction
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G4double NuclCorrPar ;
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G4double FactPar ;
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//New ParticleChange
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G4ParticleChangeForMSC fParticleChange ;
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};
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#include "G4MultipleScattering.icc"
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#endif
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