Gabriele Cosmo
540 lines
16 KiB
C++
540 lines
16 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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// -------------------------------------------------------------------
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//
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// GEANT4 Class header file
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//
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//
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// File name: G4BetheBlochModel
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//
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// Author: Vladimir Ivanchenko on base of Laszlo Urban code
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//
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// Creation date: 03.01.2002
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//
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// Modifications:
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//
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// Class Description:
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//
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// It is the unified energy loss process it calculates the continuous
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// energy loss for charged particles using a set of Energy Loss
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// models valid for different energy regions. There are a possibility
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// to create and access to dE/dx and range tables, or to calculate
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// that information on fly.
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// -------------------------------------------------------------------
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//
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#ifndef G4VEnergyLossSTD_h
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#define G4VEnergyLossSTD_h 1
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#include "G4VContinuousDiscreteProcess.hh"
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#include "globals.hh"
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#include "G4Material.hh"
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#include "G4Track.hh"
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#include "G4EmModelManager.hh"
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class G4Step;
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class G4ParticleDefinition;
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class G4VEmModel;
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class G4VEffectiveChargeModel;
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class G4VEmFluctuationModel;
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class G4DataVector;
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class G4VParticleChange;
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class G4PhysicsTable;
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class G4PhysicsVector;
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class G4VSubCutoffProcessor;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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class G4VEnergyLossSTD : public G4VContinuousDiscreteProcess
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{
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public:
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G4VEnergyLossSTD(const G4String& name = "EnergyLoss",
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G4ProcessType type = fElectromagnetic);
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~G4VEnergyLossSTD();
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void Initialise();
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virtual G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
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virtual G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&);
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virtual G4bool IsApplicable(const G4ParticleDefinition& p);
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// True for all charged particles
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virtual void BuildPhysicsTable(const G4ParticleDefinition&);
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// Build physics table during initialisation
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virtual void PrintInfoDefinition() const;
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// Print out of the class parameters
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G4PhysicsTable* BuildDEDXTable();
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void SetParticles(const G4ParticleDefinition*,
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const G4ParticleDefinition*,
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const G4ParticleDefinition*);
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void SetParticle(const G4ParticleDefinition* p);
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void SetBaseParticle(const G4ParticleDefinition* p);
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void SetSecondaryParticle(const G4ParticleDefinition* p);
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const G4ParticleDefinition* Particle() const;
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const G4ParticleDefinition* BaseParticle() const;
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const G4ParticleDefinition* SecondaryParticle() const;
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// Print out of the class parameters
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void SetDEDXBinning(G4int nbins);
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G4int DEDXBinning() const;
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// Print out of the class parameters
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void SetLambdaBinning(G4int nbins);
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G4int LambdaBinning() const;
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// Print out of the class parameters
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void SetMinKinEnergy(G4double e);
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G4double MinKinEnergy() const;
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// Print out of the class parameters
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void SetMaxKinEnergy(G4double e);
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G4double MaxKinEnergy() const;
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// Print out of the class parameters
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G4bool StorePhysicsTable(G4ParticleDefinition*,
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const G4String& directory,
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G4bool ascii = false);
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// Store PhysicsTable in a file.
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// Return false in case of failure at I/O
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G4bool RetrievePhysicsTable(G4ParticleDefinition*,
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const G4String& directory,
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G4bool ascii);
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// Retrieve Physics from a file.
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// (return true if the Physics Table can be build by using file)
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// (return false if the process has no functionality or in case of failure)
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// File name should is constructed as processName+particleName and the
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// should be placed under the directory specifed by the argument.
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void AddEmModel(G4VEmModel*, G4int);
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void AddEmFluctuationModel(G4VEmFluctuationModel*);
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void SetSubCutoffProcessor(G4VSubCutoffProcessor*);
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void SetDEDXTable(G4PhysicsTable* p);
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G4PhysicsTable* DEDXTable() const {return theDEDXTable;};
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void SetRangeTable(G4PhysicsTable* p);
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G4PhysicsTable* RangeTable() const {return theRangeTable;};
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void SetInverseRangeTable(G4PhysicsTable* p);
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G4PhysicsTable* InverseRangeTable() const {return theInverseRangeTable;};
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void SetSecondaryRangeTable(G4PhysicsTable* p);
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const G4PhysicsTable* LambdaTable() {return theLambdaTable;};
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G4double GetDEDX(G4double kineticEnergy, const G4Material* material);
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G4double GetRange(G4double kineticEnergy, const G4Material* material);
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G4double GetKineticEnergy(G4double range, const G4Material* material);
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G4double GetLambda(G4double kineticEnergy, const G4Material* material);
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// It returns the MeanFreePath of the process for a (energy, material)
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G4double MicroscopicCrossSection(G4double kineticEnergy, const G4Material* material);
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// It returns the MeanFreePath of the process for a (energy, material)
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void SetLinearLossLimit(G4double val) {linLossLimit = val;};
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void SetLossFluctuations(G4bool val) {lossFluctuationFlag = val;};
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void SetSubCutoff(G4bool val) {if(subCutoffIsDesired) subCutoffFlag = val;};
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void SetIntegral(G4bool val) {integral = val;};
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void SetRandomStep(G4bool val) {rndmStepFlag = val;};
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void SetMinSubRange(G4double val) {minSubRange = val;};
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void SetStepLimits(G4double v1, G4double v2);
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G4bool TablesAreBuilt() {return tablesAreBuilt;};
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G4double MeanFreePath(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition);
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G4double ContinuousStepLimit(const G4Track& track,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety);
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protected:
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virtual G4double GetMeanFreePath(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition);
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virtual G4double GetContinuousStepLimit(const G4Track& track,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety);
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virtual const G4ParticleDefinition* DefineBaseParticle(
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const G4ParticleDefinition*) {return 0;};
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virtual G4PhysicsVector* DEDXPhysicsVector(const G4Material*);
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virtual G4PhysicsVector* LambdaPhysicsVector(const G4Material*);
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virtual G4PhysicsVector* SubLambdaPhysicsVector(const G4Material*);
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virtual G4double MinPrimaryEnergy(const G4ParticleDefinition*,
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const G4Material*, G4double cut) = 0;
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virtual G4double MaxSecondaryEnergy(const G4DynamicParticle* dp) = 0;
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void SetMassRatio(G4double val) {massRatio = val;};
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void SetReduceFactor(G4double val) {reduceFactor = val;};
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void SetChargeSquare(G4double val) {chargeSquare = val;};
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void SetChargeSquareRatio(G4double val) {chargeSqRatio = val;};
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void SetSubCutoffIsDesired(G4bool val);
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private:
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void Clear();
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void DefineMaterial(const G4Material* material);
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G4PhysicsTable* BuildLambdaTable();
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G4PhysicsTable* BuildLambdaSubTable();
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// hide assignment operator
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G4VEnergyLossSTD(G4VEnergyLossSTD &);
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G4VEnergyLossSTD & operator=(const G4VEnergyLossSTD &right);
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// =====================================================================
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private:
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G4EmModelManager* modelManager;
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G4VSubCutoffProcessor* subCutoffProcessor;
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G4VEmFluctuationModel* emFluctModel;
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// tables and vectors
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G4PhysicsTable* theDEDXTable;
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G4PhysicsTable* theRangeTable;
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G4PhysicsTable* theSecondaryRangeTable;
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G4PhysicsTable* theInverseRangeTable;
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G4PhysicsTable* theLambdaTable;
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const G4DataVector* theCuts;
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G4double minKinEnergy;
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G4double maxKinEnergy;
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G4int nDEDXBins;
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G4int nLambdaBins;
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const G4ParticleDefinition* particle;
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const G4ParticleDefinition* baseParticle;
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const G4ParticleDefinition* secondaryParticle;
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const G4ParticleDefinition* theGamma;
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const G4ParticleDefinition* theElectron;
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G4double massRatio;
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G4double reduceFactor;
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G4double chargeSquare;
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G4double chargeSqRatio;
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G4bool lossFluctuationFlag;
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G4bool subCutoffFlag;
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G4bool subCutoffIsDesired;
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G4bool rndmStepFlag;
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G4bool hasRestProcess;
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G4bool tablesAreBuilt;
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G4bool integral;
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G4double preStepLambda;
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G4double fRange;
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G4double preStepKinEnergy;
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G4double preStepScaledEnergy;
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G4double linLossLimit;
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G4double minSubRange;
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G4double dRoverRange;
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//G4double maxFinalStep;
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G4double finalRange;
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G4double c1lim;
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G4double c2lim;
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G4double c3lim;
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// cash
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const G4Material* currentMaterial;
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G4int currentMaterialIndex;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4bool G4VEnergyLossSTD::IsApplicable(const G4ParticleDefinition& p)
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{
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return (p.GetPDGCharge() != 0.0);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::DefineMaterial(const G4Material* material)
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{
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if(material != currentMaterial) {
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currentMaterial = material;
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currentMaterialIndex = material->GetIndex();
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::GetDEDX(G4double kineticEnergy,
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const G4Material* material)
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{
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DefineMaterial(material);
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G4bool b;
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return ((*theDEDXTable)[currentMaterialIndex]->
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GetValue(kineticEnergy*massRatio, b))*chargeSqRatio;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::GetRange(G4double kineticEnergy,
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const G4Material* material)
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{
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DefineMaterial(material);
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G4bool b;
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return ((*theRangeTable)[currentMaterialIndex]->
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GetValue(kineticEnergy*massRatio, b))*reduceFactor;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::GetKineticEnergy(G4double range,
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const G4Material* material)
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{
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DefineMaterial(material);
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G4bool b;
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return ((*theInverseRangeTable)[currentMaterialIndex]->
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GetValue(range/reduceFactor, b))/massRatio;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetSubCutoffIsDesired(G4bool val)
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{
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subCutoffIsDesired = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::GetMeanFreePath(const G4Track& track,
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G4double,
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G4ForceCondition* cond)
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{
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G4bool b;
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*cond = NotForced;
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DefineMaterial(track.GetMaterial());
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preStepKinEnergy = track.GetKineticEnergy();
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preStepLambda = (((*theLambdaTable)[currentMaterialIndex])->
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GetValue(preStepKinEnergy, b)) * chargeSqRatio;
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G4double x = DBL_MAX;
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if(0.0 < preStepLambda) x = 1.0/preStepLambda;
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return x;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::GetContinuousStepLimit(const G4Track&,
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G4double, G4double, G4double&)
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{
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G4double x = DBL_MAX;
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preStepScaledEnergy = preStepKinEnergy*massRatio;
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if(theRangeTable) {
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G4bool b;
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fRange = ((*theRangeTable)[currentMaterialIndex])->
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GetValue(preStepScaledEnergy, b)*reduceFactor;
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if(integral || fRange <= finalRange) {
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x = fRange;
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} else {
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x = c1lim*fRange+c2lim+c3lim/fRange;
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if(rndmStepFlag) x = finalRange + (x-finalRange)*G4UniformRand();
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if(x > fRange) x = fRange;
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}
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}
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return x;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetParticle(const G4ParticleDefinition* p)
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{
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particle = p;
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if(!baseParticle) baseParticle = DefineBaseParticle(particle);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetBaseParticle(const G4ParticleDefinition* p)
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{
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baseParticle = p;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetSecondaryParticle(const G4ParticleDefinition* p)
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{
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secondaryParticle = p;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline const G4ParticleDefinition* G4VEnergyLossSTD::Particle() const
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{
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return particle;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline const G4ParticleDefinition* G4VEnergyLossSTD::BaseParticle() const
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{
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return baseParticle;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline const G4ParticleDefinition* G4VEnergyLossSTD::SecondaryParticle() const
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{
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return secondaryParticle;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetDEDXBinning(G4int nbins)
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{
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nDEDXBins = nbins;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4int G4VEnergyLossSTD::DEDXBinning() const
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{
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return nDEDXBins;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetLambdaBinning(G4int nbins)
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{
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nLambdaBins = nbins;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4int G4VEnergyLossSTD::LambdaBinning() const
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{
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return nLambdaBins;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetMinKinEnergy(G4double e)
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{
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minKinEnergy = e;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::MinKinEnergy() const
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{
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return minKinEnergy;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetMaxKinEnergy(G4double e)
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{
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maxKinEnergy = e;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::MaxKinEnergy() const
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{
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return maxKinEnergy;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4VEnergyLossSTD::GetLambda(G4double kineticEnergy,
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const G4Material* material)
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{
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DefineMaterial(material);
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G4double x = DBL_MAX;
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G4bool b;
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if(theLambdaTable) {
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G4double y = (((*theLambdaTable)[currentMaterialIndex])->
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GetValue(kineticEnergy, b));
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if(y > 0.0) x = 1.0/y;
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}
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return x;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4VEnergyLossSTD::SetStepLimits(G4double v1, G4double v2)
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{
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dRoverRange = v1;
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finalRange = v2;
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c1lim=dRoverRange;
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c2lim=2.*(1-dRoverRange)*finalRange;
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c3lim=-(1.-dRoverRange)*finalRange*finalRange;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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