Gabriele Cosmo
129 lines
4.2 KiB
C++
129 lines
4.2 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4Gamma.hh,v 1.3 1999/12/15 14:50:52 gunter Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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//
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//
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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// For information related to this code contact:
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// CERN, CN Division, ASD group
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// History: first implementation, based on object model of
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// 4-th April 1996, G.Cosmo
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// ****************************************************************
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// Added particle definitions, H.Kurashige, 19 April 1996
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// Revised, G.Cosmo, 6 June 1996
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// Added SetCuts, L.Urban, 12 June 1996
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// Added not static GetEnergyCuts() and GetLengthCuts(), G.Cosmo, 11 July 1996
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// ----------------------------------------------------------------
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// Each class inheriting from G4VBoson
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// corresponds to a particle type; one and only one
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// instance for each class is guaranteed.
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#ifndef G4Gamma_h
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#define G4Gamma_h 1
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#include "globals.hh"
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#include "G4ios.hh"
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#include "G4VBoson.hh"
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// ######################################################################
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// ### GAMMA ###
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// ######################################################################
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class G4Gamma : public G4VBoson
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{
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private:
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static G4Gamma theGamma;
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static G4double theGammaLengthCut;
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static G4double* theGammaKineticEnergyCuts;
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//-------- the followings are used privately in G4Gamma ----
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private:
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typedef G4LossTable G4CrossSectionTable;
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void BuildAbsorptionLengthVector(
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const G4Material* aMaterial,
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const G4CrossSectionTable* aCrossSectionTable,
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G4double maxEnergy,
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G4double aMass,
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G4RangeVector* absorptionLengthVector
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);
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G4double ComputeCrossSection(
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G4double AtomicNumber,
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G4double KineticEnergy
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) const;
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//--------------for SetCuts----------------------------------------------
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protected:
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G4double ComputeLoss(G4double AtomicNumber,G4double KineticEnergy) const
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{
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return ComputeCrossSection(AtomicNumber,KineticEnergy);
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};
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void BuildRangeVector(
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const G4Material* aMaterial,
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const G4LossTable* aLossTable,
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G4double maxEnergy,
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G4double aMass,
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G4RangeVector* rangeVector)
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{
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BuildAbsorptionLengthVector(aMaterial,
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(const G4CrossSectionTable*)aLossTable,
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maxEnergy, aMass, rangeVector);
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}
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G4double ConvertCutToKineticEnergy(
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G4RangeVector* absorptionLengthVector
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) const;
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private: // hide conxtructor as private
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G4Gamma(
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const G4String& aName, G4double mass,
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G4double width, G4double charge,
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G4int iSpin, G4int iParity,
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G4int iConjugation, G4int iIsospin,
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G4int iIsospin3, G4int gParity,
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const G4String& pType, G4int lepton,
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G4int baryon, G4int encoding,
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G4bool stable, G4double lifetime,
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G4DecayTable *decaytable
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);
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public:
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virtual ~G4Gamma(){}
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static G4Gamma* GammaDefinition();
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static G4Gamma* Gamma();
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static G4double GetCuts() {return theGammaLengthCut;}
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static G4double* GetCutsInEnergy() {return theGammaKineticEnergyCuts;};
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virtual void SetCuts(G4double aCut);
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};
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inline void G4Gamma::SetCuts(G4double aCut)
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{
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CalcEnergyCuts(aCut);
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theGammaLengthCut = theCutInMaxInteractionLength;
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theGammaKineticEnergyCuts = theKineticEnergyCuts;
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}
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inline G4Gamma* G4Gamma::Gamma()
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{ return &theGamma; }
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#endif
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