include/Geant4/G4ForwardXrayTR.hh

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0025 //
0026 // G4ForwardXrayTR
0027 //
0028 // Class for description
0029 //
0030 // Class for forward X-ray transition radiation generated
0031 // by relativistic charged particle crossed interface between material 1
0032 // and material 2 (1 -> 2)
0033
0034 // History:
0035 // 22.09.97, V. Grichine (Vladimir.Grichine@cern.ch)
0036 // 26.01.00, V.Grichine, new constructor and protected DM for fast sim. models
0037 // 10.03.03, V.Ivanchenko migrade to "cut per region"
0038 // 03.06.03, V.Ivanchenko fix compilation warnings
0039
0040 #ifndef G4FORWARDXRAYTR_H
0041 #define G4FORWARDXRAYTR_H
0042
0043 #include "globals.hh"
0044 #include "G4Track.hh"
0045 #include "G4TransitionRadiation.hh"
0046 #include "G4VParticleChange.hh"
0047
0048 class G4ParticleDefinition;
0049 class G4PhysicsTable;
0050 class G4PhysicsLogVector;
0051
0052 class G4ForwardXrayTR : public G4TransitionRadiation
0053 {
0054  public:
0055   explicit G4ForwardXrayTR(const G4String& matName1, const G4String& matName2,
0056                            const G4String& processName = "XrayTR");
0057
0058   explicit G4ForwardXrayTR(const G4String& processName = "XrayTR");
0059
0060   ~G4ForwardXrayTR();
0061
0062   G4ForwardXrayTR(const G4ForwardXrayTR& right) = delete;
0063   G4ForwardXrayTR& operator=(const G4ForwardXrayTR& right) = delete;
0064
0065   ///////////////////////    Methods    /////////////////////////////////
0066
0067   void ProcessDescription(std::ostream&) const override;
0068   void DumpInfo() const override { ProcessDescription(G4cout); };
0069
0070   void BuildXrayTRtables();
0071
0072   G4double GetMeanFreePath(const G4Track&, G4double,
0073                            G4ForceCondition* condition) override;
0074
0075   G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
0076                                   const G4Step& aStep) override;
0077
0078   G4double GetEnergyTR(G4int iMat, G4int jMat, G4int iTkin) const;
0079
0080   G4double GetThetaTR(G4int iMat, G4int jMat, G4int iTkin) const;
0081
0082   ///////////////////// Angle distribution  /////////////////////////////
0083
0084   G4double SpectralAngleTRdensity(G4double energy,
0085                                   G4double varAngle) const override;
0086
0087   G4double AngleDensity(G4double energy, G4double varAngle) const;
0088
0089   G4double EnergyInterval(G4double energy1, G4double energy2,
0090                           G4double varAngle) const;
0091
0092   G4double AngleSum(G4double varAngle1, G4double varAngle2) const;
0093
0094   /////////////////////////  Energy distribution ///////////////////////////////
0095
0096   G4double SpectralDensity(G4double energy, G4double x) const;
0097
0098   G4double AngleInterval(G4double energy, G4double varAngle1,
0099                          G4double varAngle2) const;
0100
0101   G4double EnergySum(G4double energy1, G4double energy2) const;
0102
0103   ///////////////////////////   Access functions  ////////////////////////////
0104
0105   G4PhysicsTable* GetAngleDistrTable();
0106   G4PhysicsTable* GetEnergyDistrTable();
0107
0108   static G4int GetSympsonNumber();
0109   static G4int GetBinTR();
0110
0111   static G4double GetMinProtonTkin();
0112   static G4double GetMaxProtonTkin();
0113   static G4int GetTotBin();
0114
0115  protected:  // for access from X-ray TR fast simulation models
0116   static constexpr G4double fTheMinEnergyTR =
0117     1. * CLHEP::keV;  //  static min TR energy
0118   static constexpr G4double fTheMaxEnergyTR =
0119     100. * CLHEP::keV;                              //  static max TR energy
0120   static constexpr G4double fTheMaxAngle = 1.0e-3;  //  max theta of TR quanta
0121   static constexpr G4double fTheMinAngle = 5.0e-6;  //  min theta of TR quanta
0122   static constexpr G4double fMinProtonTkin =
0123     100. * CLHEP::GeV;  // min Tkin of proton in tables
0124   static constexpr G4double fMaxProtonTkin =
0125     100. * CLHEP::TeV;  // max Tkin of proton in tables
0126   static constexpr G4double fPlasmaCof =
0127     4.0 * CLHEP::pi * CLHEP::fine_structure_const * CLHEP::hbarc *
0128     CLHEP::hbarc * CLHEP::hbarc /
0129     CLHEP::electron_mass_c2;  // physical consts for plasma energy
0130   static constexpr G4double fCofTR = CLHEP::fine_structure_const / CLHEP::pi;
0131
0132   static constexpr G4int fSympsonNumber =
0133     100;                                // Accuracy of Sympson integration
0134   static constexpr G4int fBinTR  = 50;  //  number of bins in TR vectors
0135   static constexpr G4int fTotBin = 50;  // number of bins in log scale
0136
0137   const std::vector<G4double>* fGammaCutInKineticEnergy;
0138   // TR photon cut in energy array
0139
0140   G4ParticleDefinition* fPtrGamma;  // pointer to TR photon
0141
0142   G4PhysicsTable* fAngleDistrTable;
0143   G4PhysicsTable* fEnergyDistrTable;
0144
0145   G4PhysicsLogVector* fProtonEnergyVector;
0146
0147   G4double fMinEnergyTR;   //  min TR energy in material
0148   G4double fMaxEnergyTR;   //  max TR energy in material
0149   G4double fMaxThetaTR;    //  max theta of TR quanta
0150   G4double fGamma;         // current Lorentz factor
0151   G4double fGammaTkinCut;  // Tkin cut of TR photon in current mat.
0152   G4double fSigma1;        // plasma energy Sq of matter1
0153   G4double fSigma2;        // plasma energy Sq of matter2
0154
0155   G4int secID = -1;  // creator modelID
0156 };
0157
0158 #endif  // G4FORWARDXRAYTR_H