include/Geant4/G4VITRestDiscreteProcess.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
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0025 //
0026 //
0027 /// \brief Identical to G4VRestDiscreteProcess with dependency from G4VITProcess
0028 //
0029 // WARNING : This class is released as a prototype.
0030 // It might strongly evolve or even disapear in the next releases.
0031 //
0032 // Author: Mathieu Karamitros
0033
0034 // The code is developed in the framework of the ESA AO7146
0035 //
0036 // We would be very happy hearing from you, send us your feedback! :)
0037 //
0038 // In order for Geant4-DNA to be maintained and still open-source,
0039 // article citations are crucial.
0040 // If you use Geant4-DNA chemistry and you publish papers about your software,
0041 // in addition to the general paper on Geant4-DNA:
0042 //
0043 // Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
0044 //
0045 // we would be very happy if you could please also cite the following
0046 // reference papers on chemistry:
0047 //
0048 // J. Comput. Phys. 274 (2014) 841-882
0049 // Prog. Nucl. Sci. Tec. 2 (2011) 503-508
0050
0051 #pragma  once
0052 #include "G4VITProcess.hh"
0053
0054 /** Identical to G4VRestDiscreteProcess with dependency on G4VITProcess */
0055
0056 class G4VITRestDiscreteProcess : public G4VITProcess
0057 {
0058     //  Abstract class which defines the public behavior of
0059     //  rest + discrete physics interactions.
0060 public:
0061     G4VITRestDiscreteProcess() = delete;
0062     G4VITRestDiscreteProcess(const G4String&, G4ProcessType aType = fNotDefined);
0063     G4VITRestDiscreteProcess(const G4VITRestDiscreteProcess&) = delete;
0064     G4VITRestDiscreteProcess& operator=(const G4VITRestDiscreteProcess& right) = delete;
0065     ~G4VITRestDiscreteProcess() override;
0066
0067 public:
0068     // with description
0069     G4double
0070     PostStepGetPhysicalInteractionLength(const G4Track& track,
0071                                          G4double previousStepSize,
0072                                          G4ForceCondition* condition) override;
0073
0074     G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&) override;
0075
0076     G4double AtRestGetPhysicalInteractionLength(const G4Track&,
0077                                                 G4ForceCondition*) override;
0078
0079     G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&) override;
0080
0081     //  no operation in  AlongStepDoIt
0082     G4double AlongStepGetPhysicalInteractionLength(const G4Track&,
0083                                                    G4double,
0084                                                    G4double,
0085                                                    G4double&,
0086                                                    G4GPILSelection*) override
0087     {
0088         return -1.0;
0089     }
0090
0091     //  no operation in  AlongStepDoIt
0092     G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&) override
0093     {
0094         return nullptr;
0095     }
0096
0097 protected:
0098     // with description
0099     virtual G4double GetMeanFreePath(const G4Track& aTrack,
0100                                      G4double previousStepSize,
0101                                      G4ForceCondition* condition) = 0;
0102     //  Calculates from the macroscopic cross section a mean
0103     //  free path, the value is returned in units of distance.
0104
0105     virtual G4double GetMeanLifeTime(const G4Track& aTrack,
0106                                      G4ForceCondition* condition) = 0;
0107     //  Calculates the mean life-time (i.e. for decays) of the
0108     //  particle at rest due to the occurrence of the given process,
0109     //  or converts the probability of interaction (i.e. for
0110     //  annihilation) into the life-time of the particle for the
0111     //  occurrence of the given process.
0112 };