Gabriele Cosmo
155 lines
5.9 KiB
C++
155 lines
5.9 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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// G4GeneralCerenkov
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//
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// Class description:
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// The Cerenkov process using model approach when an object G4VXRayModel
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// is assign to G4LogicalVolume. A model is fully responsible for
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// Cerenkov gamma production. This process class performing only tecnical
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// operation and interaction with Geant4 kernel.
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//
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// Created 25.05.2025 V.Ivanchenko on base of G4Cerenkov class
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//
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// --------------------------------------------------------------------
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#ifndef G4GeneralCerenkov_h
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#define G4GeneralCerenkov_h 1
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#include "globals.hh"
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#include "G4ForceCondition.hh"
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#include "G4LogicalVolume.hh"
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#include "G4VXRayModel.hh"
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#include "G4VDiscreteProcess.hh"
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#include <vector>
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class G4Material;
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class G4ParticleDefinition;
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class G4PhysicsTable;
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class G4Step;
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class G4Track;
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class G4VParticleChange;
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class G4GeneralCerenkov : public G4VDiscreteProcess
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{
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public:
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explicit G4GeneralCerenkov(const G4String& processName = "Cerenkov",
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G4ProcessType type = fElectromagnetic);
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~G4GeneralCerenkov() override;
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G4GeneralCerenkov(const G4GeneralCerenkov& right) = delete;
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G4GeneralCerenkov& operator=(const G4GeneralCerenkov& right) = delete;
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G4bool IsApplicable(const G4ParticleDefinition& aParticleType) override;
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void PreparePhysicsTable(const G4ParticleDefinition& part) override;
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void BuildPhysicsTable(const G4ParticleDefinition& aParticleType) override;
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G4double PostStepGetPhysicalInteractionLength(const G4Track& aTrack, G4double,
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G4ForceCondition*) override;
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// Returns the discrete step limit and sets the 'StronglyForced'
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// condition for the DoIt to be invoked at every step.
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G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
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const G4Step& aStep) override;
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// This is the method implementing the Cerenkov process.
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void AddModelForVolume(G4VXRayModel*, const G4String& nameLogVolume);
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// explicit addition of a custom Cerenkov model to a logical volume
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void DumpInfo() const override { ProcessDescription(G4cout); };
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void ProcessDescription(std::ostream& out) const override;
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G4double GetMeanFreePath(const G4Track&, G4double,
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G4ForceCondition*) override;
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// Obsolete methods to be removed for the next major release
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void SetTrackSecondariesFirst(const G4bool state);
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// If set, the primary particle tracking is interrupted and any
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// produced Cerenkov photons are tracked next. When all have
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// been tracked, the tracking of the primary resumes.
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void SetMaxBetaChangePerStep(const G4double d);
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// Set the maximum allowed change in beta = v/c in % (perCent) per step.
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void SetMaxNumPhotonsPerStep(const G4int NumPhotons);
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// Set the maximum number of Cerenkov photons allowed to be generated during
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// a tracking step. This is an average ONLY; the actual number will vary
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// around this average. If invoked, the maximum photon stack will roughly be
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// of the size set. If not called, the step is not limited by the number of
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// photons generated.
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void SetStackPhotons(const G4bool);
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// Call by the user to set the flag for stacking the Cerenkov photons
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void SetVerboseLevel(G4int);
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private:
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const G4LogicalVolume* fCurrentLV{nullptr};
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G4VXRayModel* fCurrentModel{nullptr};
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G4double fMaxBetaChange{0.1};
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G4double fBetaMin{1.0};
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G4double fPreStepBeta{0.0};
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G4int fMaxPhotons{100};
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G4bool fStackingFlag{true};
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G4bool fTrackSecondariesFirst{true};
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G4bool isInitializer{false};
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G4bool isPrepared{false};
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G4bool isBuilt{false};
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G4int secID{-1}; // creator modelID
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G4int nModels{0};
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// map includes logical volume pointer and index of the model
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static std::vector<std::vector<const G4LogicalVolume*>* >* fLV;
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// vector is used only at initialisation
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// these models are destructed by G4LossTableManager
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static std::vector<G4VXRayModel*>* fSharedModels;
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// vector of names of logical volumes for master used for initilisation
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// not filled for a worker thread
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std::vector<G4String>* fLVNames{nullptr};
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// models used in run time - they are thread local, are
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// instantiated in worker thread, and are cloned from fSharedModels
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// these models are destructed by G4LossTableManager
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std::vector<G4VXRayModel*> fModels;
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// buffer for X-Rays
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std::vector<G4Track*> fSecondaries;
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};
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#endif
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