include/Geant4/G4DNAElectronHoleRecombination.hh

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0025 //
0026 /*
0027  * G4DNAElectronHoleRecombination.hh
0028  *
0029  *  Created on: Jun 17, 2015
0030  *      Author: mkaramit
0031  */
0032
0033 #pragma once
0034 #include <G4VITRestDiscreteProcess.hh>
0035
0036 class G4DNAElectronHoleRecombination : public G4VITRestDiscreteProcess
0037 {
0038 public:
0039     G4DNAElectronHoleRecombination();
0040     ~G4DNAElectronHoleRecombination() override;
0041     void Create();
0042
0043     void StartTracking(G4Track*) override;
0044
0045     G4bool IsApplicable(const G4ParticleDefinition&) override;
0046
0047     void BuildPhysicsTable(const G4ParticleDefinition&) override
0048     {}
0049
0050     ////////////////////////////
0051     // DoIt    /////////////////
0052     ///////////////////////////
0053     G4VParticleChange* AtRestDoIt(const G4Track& /*track*/,
0054                                           const G4Step& /*stepData*/) override;
0055     //  A virtual base class function that has to be overridden
0056     //  by any subclass. The DoIt method actually performs the
0057     //  physics process and determines either momentum change
0058     //  of the production of secondaries etc.
0059     //    arguments
0060     //      const G4Track&    track:
0061     //        reference to the current G4Track information
0062     //      const G4Step&     stepData:
0063     //        reference to the current G4Step information
0064
0065     G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&) override;
0066
0067
0068     //////////////////////////
0069     // GPIL    //////////////
0070     /////////////////////////
0071
0072     G4double GetMeanFreePath(const G4Track& aTrack,
0073                                     G4double previousStepSize,
0074                                     G4ForceCondition* condition)override;
0075     //  Calculates from the macroscopic cross section a mean
0076     //  free path, the value is returned in units of distance.
0077
0078     G4double GetMeanLifeTime(const G4Track& aTrack,
0079                                     G4ForceCondition* condition) override;
0080     //  Calculates the mean life-time (i.e. for decays) of the
0081     //  particle at rest due to the occurrence of the given process,
0082     //  or converts the probability of interaction (i.e. for
0083     //  annihilation) into the life-time of the particle for the
0084     //  occurence of the given process.
0085
0086 private:
0087     struct ReactantInfo
0088     {
0089         G4Track* fElectron;
0090         G4double fDistance;
0091         G4double fProbability;
0092     };
0093
0094     struct State : public G4ProcessStateBase<G4DNAElectronHoleRecombination>
0095     {
0096         std::vector<ReactantInfo> fReactants; // distanceSqr;
0097         G4double fSampleProba;
0098     };
0099
0100     G4bool FindReactant(const G4Track& track);
0101     void MakeReaction(const G4Track& track);
0102
0103     const std::vector<double>* fpMoleculeDensity;
0104     G4ParticleChange fParticleChange;
0105     G4bool fIsInitialized;
0106     std::map<int, std::pair<double, G4double> > fOnsagerRadiusPerMaterial;
0107 };