physics/include/G4LowEnergyRayleigh.hh

0001 //
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0024 // ********************************************************************
0025 //
0026 //
0027 //
0028 //
0029 //
0030 // Author: A. Forti
0031 //         Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
0032 //
0033 // History:
0034 // -----------
0035 // 02 Mar 1999   A. Forti   1st implementation
0036 // 11 Aug 2001   MGP        Major revision according to a design iteration
0037 //
0038 // -------------------------------------------------------------------
0039
0040 // Class description:
0041 // Low Energy Electromagnetic process, Rayleigh effect
0042 // Further documentation available from http://www.ge.infn.it/geant4/lowE
0043
0044 // -------------------------------------------------------------------
0045
0046 #ifndef G4RDLOWENERGYRAYLEIGH_HH
0047 #define G4RDLOWENERGYRAYLEIGH_HH 1
0048
0049 #include "globals.hh"
0050 #include "G4VDiscreteProcess.hh"
0051 class G4Track;
0052 class G4Step;
0053 class G4ParticleDefinition;
0054 class G4VParticleChange;
0055 class G4RDVEMDataSet;
0056 class G4RDVCrossSectionHandler;
0057
0058 class G4LowEnergyRayleigh : public G4VDiscreteProcess {
0059
0060 public:
0061
0062   G4LowEnergyRayleigh(const G4String& processName ="LowEnRayleigh");
0063
0064   ~G4LowEnergyRayleigh();
0065
0066   G4bool IsApplicable(const G4ParticleDefinition&);
0067
0068   void BuildPhysicsTable(const G4ParticleDefinition& photon);
0069
0070   G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep);
0071
0072   // For testing purpose only
0073   G4double DumpMeanFreePath(const G4Track& aTrack,
0074                 G4double previousStepSize,
0075                 G4ForceCondition* condition)
0076   { return GetMeanFreePath(aTrack, previousStepSize, condition); }
0077
0078 protected:
0079
0080   G4double GetMeanFreePath(const G4Track& aTrack,
0081                G4double previousStepSize,
0082                G4ForceCondition* condition);
0083
0084 private:
0085
0086   // Hide copy constructor and assignment operator as private
0087   G4LowEnergyRayleigh& operator=(const G4LowEnergyRayleigh &right);
0088   G4LowEnergyRayleigh(const G4LowEnergyRayleigh& );
0089
0090   G4double lowEnergyLimit;  // low energy limit  applied to the process
0091   G4double highEnergyLimit; // high energy limit applied to the process
0092
0093   G4RDVEMDataSet* meanFreePathTable;
0094   G4RDVEMDataSet* formFactorData;
0095
0096   G4RDVCrossSectionHandler* crossSectionHandler;
0097
0098   const G4double intrinsicLowEnergyLimit; // intrinsic validity range
0099   const G4double intrinsicHighEnergyLimit;
0100
0101 };
0102
0103 #endif
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