Import Geant4 6.0.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -20,8 +20,9 @@
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// $Id: G4MultipleScattering.hh,v 1.16 2003/04/18 12:44:04 vnivanch Exp $
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// GEANT4 tag $Name: geant4-05-02 $
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// $Id: G4MultipleScattering.hh,v 1.17 2003/08/08 11:31:24 vnivanch Exp $
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// GEANT4 tag $Name: geant4-06-00 $
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//
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//
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//------------- G4MultipleScattering physics process --------------------------
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// by Laszlo Urban, March 2001
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@@ -37,12 +38,18 @@
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// 17-04-02 NEW angle distribution + boundary algorithm modified, L.Urban
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// 22-04-02 boundary algorithm modified -> important improvement in timing !!!!
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// (L.Urban)
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// 24-04-02 some minor changes in boundary algorithm, L.Urban
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// 24-05-02 changes in data members, L.Urban
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// 30-10-02 changes in data members, L.Urban
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// 30-10-02 changes in data members, L.Urban
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// 20-01-03 Migrade to cut per region (V.Ivanchenko)
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// 05-02-03 changes in data members, L.Urban
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// 18-04-03 Change signature of GetTransportMeanFreePath (V.Ivanchenko)
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// 28-03-03 Move to model design (V.Ivanchenko)
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// 18-04-03 Change name (V.Ivanchenko)
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// 16-06-03: ShortLived are not applicable any more (V.Ivanchenko)
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//
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//------------------------------------------------------------------------------
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//
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// $Id: G4MultipleScattering.hh,v 1.17 2003/08/08 11:31:24 vnivanch Exp $
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// GEANT4 tag $Name: geant4-06-00 $
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// class description
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//
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@@ -56,181 +63,81 @@
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#ifndef G4MultipleScattering_h
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#define G4MultipleScattering_h 1
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#include "G4VContinuousDiscreteProcess.hh"
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#include "G4EnergyLossTables.hh"
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#include "G4GPILSelection.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4VPhysicalVolume.hh"
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#include "G4ParticleChangeForMSC.hh"
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#include "G4UnitsTable.hh"
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#include "G4VMultipleScattering.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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class G4MultipleScattering : public G4VContinuousDiscreteProcess
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class G4MultipleScattering : public G4VMultipleScattering
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{
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public: // with description
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public: // with description
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G4MultipleScattering(const G4String& processName="msc");
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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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G4bool IsApplicable (const G4ParticleDefinition& p)
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{return (p.GetPDGCharge() != 0.0 && !p.IsShortLived());};
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// returns true for charged particles, false otherwise
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void BuildPhysicsTable(const G4ParticleDefinition& aParticleType);
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// This function overloads the corresponding virtual function
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// of the base class G4VContinuousDiscreteProcess.
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// It is invoked by the G4ParticleWithCuts()::SetCut() method.
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// It prepares the table of the transport mean free paths
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// for every material.
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void InitialiseProcess(const G4ParticleDefinition&);
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// This function initialise models
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void PrintInfoDefinition();
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G4double TruePathLengthLimit(const G4Track& track,
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G4double& lambda,
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G4double currentMinimalStep);
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void PrintInfoDefinition();
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// Print few lines of informations about the process: validity range,
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// origine ..etc..
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// Invoked by BuildPhysicsTable().
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G4bool StorePhysicsTable(G4ParticleDefinition* ,
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const G4String& directory, G4bool);
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// store TransportMeanFreePath tables into an external file
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// specified by 'directory' (must exist before invokation)
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G4bool RetrievePhysicsTable(G4ParticleDefinition* ,
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const G4String& directory, G4bool);
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// retrieve TransportMeanFreePath tables from an external file
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// specified by 'directory'
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G4double AlongStepGetPhysicalInteractionLength(const G4Track&,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety,
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G4GPILSelection* selection);
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// The function overloads the corresponding function of the base
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// class.It limits the step near to boundaries only
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// and invokes the method GetContinuousStepLimit at every step.
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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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// It performs the true step length --> geometrical step length
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// transformation. It is invoked by the
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// AlongStepGetPhysicalInteractionLength method.
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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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// It sets the force condition to true only
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// in order to have the PostStepDoIt called at every step.
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// This function overloads a virtual function of the base class.
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// It is invoked by the ProcessManager of the Particle.
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G4double GetTransportMeanFreePath(
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G4double KineticEnergy,const G4MaterialCutsCouple* couple);
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// Just a utility method to get the values of the transport
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// mean free path . (It is not used inside the class.)
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G4VParticleChange* AlongStepDoIt(const G4Track& aTrack,const G4Step& aStep);
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// The geometrical step length --> true path length transformation
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// is performed here (the inverse of the transformation done
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// by GetContinuousStepLimit).
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G4VParticleChange* PostStepDoIt(const G4Track& aTrack,const G4Step& aStep);
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// It computes the final state of the particle: samples the
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// scattering angle and computes the lateral displacement.
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// The final state is returned as a ParticleChange object.
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// This function overloads a virtual function of the base class.
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// It is invoked by the ProcessManager of the Particle.
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void Setsamplez(G4bool value) {samplez = value;};
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void Setsamplez(G4bool value) {samplez = value;};
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// geom. step length distribution should be sampled or not
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void Setdtrl(G4double value) {dtrl = value;};
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void Setdtrl(G4double value) {dtrl = value;};
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// to reduce the energy/step dependence
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void SetBoundary(G4bool value) {boundary = value;};
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void Setfacxsi(G4double value) {facxsi = value;
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G4cout << " facxsi=" << facxsi << G4endl;};
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void SetFacrange(G4double val) {facrange=val;
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nsmallstep = G4int(log((cf+facrange-1.)/
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facrange)/log(cf))+1 ;
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G4cout << " fr=" << facrange
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<< " nsmall=" << nsmallstep << G4endl ;};
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// Steplimit after boundary crossing = facrange*range
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// estimated nb of steps at boundary nsmallstep = 1/facrange
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void Setfacxsi(G4double value) {facxsi = value;}
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void SetFacrange(G4double val) {facrange=val;
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nsmallstep = G4int(log((cf+facrange-1.)/facrange)/log(cf))+1;}
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// Steplimit after boundary crossing = facrange*range
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// estimated nb of steps at boundary nsmallstep = 1/facrange
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void SetLateralDisplacementFlag(G4bool flag) {fLatDisplFlag = flag;};
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// lateral displacement to be/not to be computed
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void SetNuclCorrPar(G4double val) {NuclCorrPar = val;};
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void SetFactPar(G4double val) {FactPar = val;};
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void SetNuclCorrPar(G4double val) {NuclCorrPar = val;};
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void SetFactPar(G4double val) {FactPar = val;};
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// corrs to transport cross section for high energy
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protected: // with description
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virtual 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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// It computes the transport cross section.
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// The transport mean free path is 1/(transport cross section).
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private:
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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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G4MultipleScattering & operator = (const G4MultipleScattering &right);
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G4MultipleScattering ( const G4MultipleScattering &);
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private: // data members
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private: // data members
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G4PhysicsTable* theTransportMeanFreePathTable;
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G4double lowKineticEnergy;
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G4double highKineticEnergy;
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G4int totBins;
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G4double taubig,tausmall,taulim;
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G4double facrange;
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G4double tlimit;
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G4double tlimitmin;
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G4double dtrl;
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G4double NuclCorrPar;
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G4double FactPar;
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G4double facxsi;
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G4double cf;
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G4double LowestKineticEnergy;
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G4double HighestKineticEnergy;
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G4int TotBin;
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G4int stepnolastmsc;
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G4int nsmallstep;
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G4int materialIndex;
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G4double tLast;
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G4double zLast;
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G4bool samplez;
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G4bool boundary;
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// model parameters
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G4bool boundary; // spec. handling near boundaries
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G4double facrange,tlimit,tlimitmin,cf;
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G4int stepno,stepnolastmsc,nsmallstep ;
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G4double laststep ;
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G4GPILSelection valueGPILSelectionMSC;
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G4double zmean; // z(geom.step length)
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G4bool samplez ; // distribution
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G4double range,T0,T1,lambda0,lambda1, // used to reduce the energy
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Tlow,alam,blam,dtrl,lambdam, // (or step length) dependence
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clam,zm,cthm;
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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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G4ParticleChangeForMSC fParticleChange;
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G4double alfa1,alfa2,alfa3,b,xsi,c0,facxsi ; // angle distr. parameters
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// facxsi : some tuning
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// possibility in the tail
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};
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#include "G4MultipleScattering.icc"
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#endif
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