Gabriele Cosmo
114 lines
4.0 KiB
C++
114 lines
4.0 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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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 *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// $Id: G4PEEffectModel.hh,v 1.3 2005/05/12 11:06:43 vnivanch Exp $
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// GEANT4 tag $Name: geant4-08-00 $
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//
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// -------------------------------------------------------------------
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//
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// GEANT4 Class header file
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//
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//
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// File name: G4PEEffectModel
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//
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// Author: Vladimir Ivanchenko on base of Michel Maire code
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//
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// Creation date: 21.04.2005
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//
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// Modifications:
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//
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// Class Description:
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//
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// Implementation of the photo-electric effect
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//
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// -------------------------------------------------------------------
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//
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#ifndef G4PEEffectModel_h
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#define G4PEEffectModel_h 1
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#include "G4VEmModel.hh"
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#include "G4PhysicsTable.hh"
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class G4ParticleChangeForGamma;
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class G4PEEffectModel : public G4VEmModel
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{
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public:
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G4PEEffectModel(const G4ParticleDefinition* p = 0,
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const G4String& nam = "PhotoElectric");
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virtual ~G4PEEffectModel();
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virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
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G4double ComputeCrossSectionPerAtom(
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const G4ParticleDefinition*,
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G4double kinEnergy,
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G4double Z,
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G4double A,
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G4double cut,
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G4double emax);
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virtual std::vector<G4DynamicParticle*>* SampleSecondaries(
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy);
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protected:
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virtual G4double ElecCosThetaDistribution(G4double ElecKineEnergy);
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private:
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G4ParticleDefinition* theGamma;
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G4ParticleDefinition* theElectron;
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G4ParticleChangeForGamma* fParticleChange;
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G4double fminimalEnergy;
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G4bool isInitialized;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
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inline G4double G4PEEffectModel::ComputeCrossSectionPerAtom(
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const G4ParticleDefinition*,
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G4double energy,
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G4double Z, G4double,
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G4double, G4double)
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{
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G4double* SandiaCof = G4SandiaTable::GetSandiaCofPerAtom((G4int)Z, energy);
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G4double energy2 = energy*energy, energy3 = energy*energy2,
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energy4 = energy2*energy2;
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return SandiaCof[0]/energy + SandiaCof[1]/energy2 +
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SandiaCof[2]/energy3 + SandiaCof[3]/energy4;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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