Gabriele Cosmo
149 lines
5.2 KiB
C++
149 lines
5.2 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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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. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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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: G4DynamicParticleIonisation
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//
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// Author: Vladimir Ivanchenko
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//
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// Creation date: 23.08.2024
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//
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//
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// Class Description:
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//
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// This class manages the ionisation process for any heavy charged
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// particle on-the-fly, using only G4DynamicParticle data, whereas the
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// G4ParticleDefinition object is not used.
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//
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// -------------------------------------------------------------------
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//
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#ifndef G4DynamicParticleIonisation_h
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#define G4DynamicParticleIonisation_h 1
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#include "G4VContinuousDiscreteProcess.hh"
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#include "G4ParticleChangeForLoss.hh"
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#include "G4EmSecondaryParticleType.hh"
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#include "globals.hh"
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#include <vector>
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class G4Track;
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class G4Step;
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class G4ParticleDefinition;
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class G4MaterialCutsCouple;
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class G4Material;
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class G4LossTableManager;
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class G4VEmFluctuationModel;
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class G4DynamicParticleIonisation : public G4VContinuousDiscreteProcess
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{
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public:
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G4DynamicParticleIonisation();
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~G4DynamicParticleIonisation() override;
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// initialisation
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void BuildPhysicsTable(const G4ParticleDefinition&) override;
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// Step limit from AlongStep
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G4double AlongStepGetPhysicalInteractionLength(
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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) override;
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// Step limit from cross section
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G4double PostStepGetPhysicalInteractionLength(
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const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition) override;
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// AlongStep computations
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G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&) override;
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// PostStep sampling of secondaries
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G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&) override;
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// implementation of the pure virtual method
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G4double GetMeanFreePath(const G4Track& track, G4double previousStepSize,
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G4ForceCondition* condition) override;
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// implementation of the pure virtual method
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G4double GetContinuousStepLimit(const G4Track& track, G4double previousStepSize,
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G4double currentMinimumStep, G4double& currentSafety) override;
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// print description in html
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void ProcessDescription(std::ostream&) const override;
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// hide assignment operator
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G4DynamicParticleIonisation & operator=
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(const G4DynamicParticleIonisation& right) = delete;
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G4DynamicParticleIonisation(const G4DynamicParticleIonisation&) = delete;
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private:
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// all parameters are dynamic
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void PreStepInitialisation(const G4Track&);
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// dEdx for given energy
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G4double ComputeDEDX(G4double ekin);
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// cross section per volume
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G4double ComputeCrossSection(G4double ekin);
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G4LossTableManager* lManager;
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G4VEmFluctuationModel* fUrban;
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const G4ParticleDefinition* theElectron;
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const G4MaterialCutsCouple* fCouple{nullptr};
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const G4Material* fMaterial{nullptr};
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const std::vector<G4double>* fCuts{nullptr};
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G4double fMass{0.0};
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G4double fRatio{0.0};
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G4double fCharge{0.0};
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G4double fCut{0.0};
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G4double fTmax{0.0};
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G4double fEkinPreStep{0.0};
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G4double fLowestEkin{0.0};
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G4double fLinLimit{0.05};
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G4int fSecID{_DeltaElectron};
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G4bool fFluct{true};
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G4ParticleChangeForLoss fParticleChange;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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